Job Purpose

Intercontinental Exchange, Inc. (ICE) is a leading operator of global exchanges, clearing houses, data, and listings services. We connect businesses around the world to unique opportunities in markets that drive the global economy. We are a diverse and inclusive company that values innovation, collaboration, and excellence. ICE team members work across departments and traditional boundaries to innovate and respond to industry demand. A successful candidate will be able to multitask in a dynamic team-based environment demonstrating strong problem-solving and decision-making abilities and the highest degree of professionalism.

The EUC team is responsible for supporting all hardware, software and technology used by in-office and remote users to execute their daily responsibilities. As our end users support multiple businesses at ICE, EUC collaborates with enterprise stakeholders to focus on efficient processes and policies that improve user productivity and efficiency.

Responsibilities

• Onboard and train new internal and external users in ICE’s environment
• Support and advance the global corporate computing environment
• Support hardware, software, and network needs for Windows, Mac, and virtual environments
• Manage tickets and incidents in ServiceNow including issue resolution, escalation, and documentation management
• Deploy hardware and software including desktop and laptop imaging software and VoIP
• Provision Active Directory, Azure, Intune, and Exchange Online including device authentication and maintaining users, groups, and distribution lists
• Manage hardware inventory, mobile device support, purchasing, and file/print/DHCP
• Troubleshoot and support conference room AV and video conferencing systems (Zoom, Teams, Webex, etc.)

Knowledge and Experience

• Experience with Active Directory, Azure, Intune, Exchange Online, and Windows desktop/server troubleshooting
• Experience with networking technology such as Cisco and Juniper
• Experience with Windows OS, Mac OS, and Microsoft Office Suite
• Knowledge of scripting and PowerShell preferred
• Demonstrates a foundational understanding of AI-powered productivity and analytics tools, including their capabilities, limitations, and appropriate use cases.

Desirable Skills

• Experience in an exchange, trading facility, or financial services environment
• Strong multitasking, time prioritization, collaborative and communication skills
• Bachelor’s degree in Computer Science, MIS, CIS, or related field desirable.

Position: M&E Shift Engineer
Location: Hammersmith Iconic Commercial Building
Hours: 4 on 4 off (Days & Nights, 7:00am 7:00pm / 7:00pm 7:00am)
Salary: £55,000 per annum + Overtime
Employer: Leading FM Service Provider

An exciting opportunity has arisen for an M&E Shift Engineer to join a leading Facilities Management service provider, working within an iconic commercial building in Hammersmith.

This is a fantastic role offering exposure to a high-profile site, strong earning potential through overtime, and clear opportunities for career progression.

The Role Overview

As the M&E Shift Engineer, you will be responsible for delivering both planned preventative maintenance (PPMs) and reactive maintenance across all building services systems. Working within a shift team, you will ensure the smooth operation of electrical and mechanical systems within this prestigious environment.

What youll do:

• Carry out PPMs across electrical and mechanical systems
• Respond to reactive maintenance issues quickly and effectively
• Perform fault finding and diagnostics on M&E systems
• Ensure compliance with health & safety and statutory regulations
• Maintain accurate records of maintenance activities
• Work collaboratively with the wider engineering team

What youll bring to the role:

• Electrical qualifications (essential)
• Good working knowledge of mechanical building services
• Experience within commercial building maintenance
• Strong fault-finding and problem-solving ability
• Ability to work effectively within a shift environment

Whats on offer:

• £55,000 basic salary
• 4 on 4 off shift pattern (days and nights)
• Plenty of overtime opportunities
• Clear career progression and training opportunities
• Opportunity to work within a flagship commercial building
• Stability with a leading FM provider

This is an excellent opportunity for a qualified M&E Engineer looking to take the next step in their career within a high-end, fast-paced commercial environment.

My client is seeking an Electrical Shift Engineer to join a dynamic team in the London area on a contract basis.

The shift is 4 on 4 off and days and nights.

The successful candidate will be responsible for performing both planned preventative maintenance (PPM) and reactive maintenance tasks across a variety of electrical building systems. This includes diagnosing faults and carrying out repairs on HVAC, lighting, plumbing, and general building services to ensure operational efficiency and safety.

The role requires strict adherence to safety procedures and policies, particularly those set by Integral and Amazon. Accurate record-keeping of all maintenance activities using the site’s CAFM system is essential. The engineer will liaise closely with site management and contractors to minimise disruption to operations and will participate in site audits, inspections, and compliance checks.

Additionally, the role supports energy efficiency and sustainability initiatives on site. A key requirement for this position is possession of the 18th Edition Wiring Regulations qualification, which is mandatory and cannot be omitted.

Skills:
18th Edition Wiring Regulations (mandatory)
Planned Preventative Maintenance (PPM)
Fault diagnosis and repair of HVAC systems
Electrical and mechanical maintenance skills
Knowledge of lighting and plumbing systems
Experience with CAFM systems for maintenance record-keeping
Strong understanding of health and safety procedures and compliance
Ability to liaise effectively with site management and contractors
Participation in site audits and inspections
Commitment to energy efficiency and sustainability initiatives

Software/Tools:
CAFM (Computer-Aided Facilities Management) systems

Certifications & Standards:
18th Edition Wiring Regulations (mandatory)
Health and Safety compliance knowledge

Pay rate for this position is up to £30 per hour umbrella (no CIS)

If you deem yourself suitable for this position, please apply Immediately.

We are currently looking for an electrical bias Multi-Skilled Engineers’ to join the existing team we have in place to further help us to deliver our contractual obligations to our corporate clients. The successful candidates will have a wealth of experience in building services maintenance and have a background of working on corporate, client facing buildings. The successful candidate will be required to work on site a 12 hour shifts 4 on, 4 off days, days and nights.

Role Purpose:

To carry out planned preventative maintenance, reactive works to building plant, equipment and systems in accordance with agreed service levels and respond to site engineering emergencies.

Undertake minor installation works in accordance with client change management structure and statutory compliance protocols

Main Duties & Responsibilities:

• Ensure that routine maintenance is carried out to all building plant, equipment, and systems to meet and exceed expectations, and agreed service level agreements.
• Respond to Building Management System alarms, and effect emergency repairs as needed.
• Issue and ensure appropriate controls within the Permit to Work systems.
• Ensure that Critical cooling water systems and any domestic systems are maintained to comply with the requirements of the L8 standard. Update logbooks accordingly
• Ensure that suitable spares are available to carry out maintenance of the critical and non-critical plant.
• Ensure that comprehensive maintenance records are kept in the form of task sheets hard copy or electronically as required. High level of computer proficiency required especially in Microsoft Excel, Word, and Power Point must be able to use Adobe / Nitro
• Ensure that Method Statements and Risk Assessments are adhered to for all tasks carried out to ensure safe working practices. Develop and enhance SOPs and EOPs
• Ensure that engineering subcontractors are appropriately escorted, comply with contractual commitments, comply with Permit to Work, and site operating processes.
• To develop a good working relationship with all members of Integral and clients staff.
• Upkeep the provision of a safe & healthy working environment and ensure compliance with all Company policies and procedures is met, as well as client site policies, procedures and working arrangements, as required.
• Ensure that engineering subcontractors are appropriately supervised, and comply with contractual commitments, and site operating processes.
• Ensure a professional image of Integral UK is presented to clients and visitors and ensure excellence in customer service is always delivered and promoted.
• Provide shift cover for opposite shift members during periods of absence.
• Attend and support annual building shutdowns when required.
• All other duties reasonably associated with this role.

Essential Qualifications & Experience:

• Minimum of 5 years relevant experience in Critical Environments such as Banking HQ and Data Centres.
• LV Authorised Person (A Bonus)
• Electrical/MechanicalEngineering apprenticeship or similar
• C&G Pts. 1 & 2, equivalent or exceeds.
• 18th Edition IEE: Wiring and Installation (Ability to attain 18thEdition through additional training if you have 17thEdition)
• C&G 2391 test and inspection; BS 7671:2001 for inspection, testing and certification.
• Excellent communication skills and the ability to deal with all levels of staff.
• Proactive in achieving the highest standard of operation.
• Have good IT and report writing skills.
• Ability to work under pressure whilst remaining calm, clear thinking and able to deliver the required services to the client within given time constraints.

Employee Benefits:

• Overtime x1.5 on weekday and x2 on weekends + day in lieu on bank holidays
• Standby rate is £15 per day and £50 on bank holidays
• 25 days holiday plus bank holidays (pro rata into shifts for shift workers)
• Company funded health cash plan
• Ability to buy and sell holidays buy 5 days & sell 2 days
• Life assurance
• Auto-enrolment company pension scheme
• Employee Assistance Program (EAP)
• Cycle to work scheme
• Purchase an electric vehicle via salary sacrifice
• Employee discounts with various brands
• Learning and development programs, training and career opportunities.

x2Mechanical Shift Engineer - Commercial Building - London - Immediate start - Temp to Perm - £25 Per Hour

An exciting immediate opportunity to join an established building services company based in London. CBW Staffing Solutions is currently recruiting for an Mechanical Maintenace Engineer to cover a commercial site. He or she will carry out planned and reactive building maintenance alongside the maintenance team.

Hours of work

• 4 on 4 off
• 07:00am to 19:00pm
• 19:00pm to 07:00am
• Contracttype - Temp to perm
• Immediatestart

Key duties & Responsibilities

• Planned and reactive maintenance
• HVAC Systems
• Emergency lighting tests
• Control Panels
• Changing Ballast
• BMS System - Monitor (i.e. Hot & cold)
• Maintain and update Log books
• Plumbing - Unblocking toilets
• Pumps, motors

Requirements

• Mechanically qualified City & Guilds - Level 2
• Must be able to provide copies of your trade certificates
• A proven track record in commercial building maintenance
• Multi-skilled
• Good communication skills
• Client Facing

For more information or to apply please email your updated CV to

Exciting opportunity at one of the fastest growing financial services firms around the world. They offer prime brokerage, clearing and financing across traditional and digital assets, and are now looking to hire world-class engineers to help build on their success.

This is a unique role, blending Level-1 support responsibilities with advanced DevOps engineering tasks, ensuring robust operational efficiency and technical excellence.

The successful Production Engineer will have outstanding communication skills, a collaborative, customer-focused mindset and be passionate about continuous learning & enhancing team capabilities.

Responsibilities

• Provide production environment support, quickly diagnosing and resolving problems (offline & real-time) and keeping internal customers informed
• Design, develop & maintain advanced reconciliation applications, ensuring consistency across digital & traditional finance trade-capture processes
• Develop monitoring dashboards and alerts using DataDog, Grafana (or similar) to proactively identify and address production issues, including end-to-end system latency
• Build tooling & monitoring solutions to facilitate comprehensive post-release validation
• You will be the incident coordinator for operational incidents on the core engineering production platform (tech comms, uphold best practices, post-incident follow-up, etc.)

Skills & Experience Required

• 5+ years’ experience in L1 Support, DevOps, SRE (or similar roles), ideally in fintech environments
• Proven experience designing and implementing monitoring and alerting tools (DataDog, Grafana)
• Strong understanding of and experience troubleshooting REST APIs and WebSockets
• Proven track record of handling multiple priorities effectively and ability to deal with ambiguity
• Experience with incident response protocols
• Strong technical expertise with Python, Unix, PostgreSQL
• Knowledge of Kafka, CockroachDB, FastAPI, GraphQL, Snowflake, Redis, and QuestDB (or equivalent)
• Strong experience with automation and reconciliation processes

Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.

Contact
If you feel you are suitable for this role, drop me an email or give me a call:

Jack Peck
[e] jack.peck@oxfordknight.co.uk
[t] +44 20 3745 6537
linkedin.com/in/jack-peck-448a70131

Salary: Market-Leading

Location: London

Summary:

A world-class HFT is looking to add a senior engineer with extensive reliability expertise to join their core systems group.

The successful candidate will work in a hands-on role in an elite team, coding with Python whilst building and maintaining Linux, networking and other systems architecture.

Requirements:

• Strong Python programming skill-set
• Solid understanding of Linux operating systems
• Strong computer science fundamentals
• Outstanding communication skills
• Trading firm expertise a bonus

Benefits and Incentives:

• Work alongside outstanding engineers in an elite, modern technical environment
• Potential for significant upside
• Friendly, collegiate culture
• Hybrid/flexible working options

Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.

Comp: £100-200k

This is a fantastic opportunity to work at a tech-focused market maker with groundbreaking success in the high frequency trading space. They’re now seeking a motivated data reliability engineer with strong Python skills.

You’ll join Global Data Engineering in London; a highly talented team with a dedicated focus on supporting the Trading teams. This role offers the opportunity to combine hands-on engineering with high-impact operations.

As first-line support for the trading environment, you will be the point of contact for traders, researchers, and other internal users. You can expect a varied workload, including investigating and resolving user issues, addressing data quality concerns, working with vendors and managing alerts. You will also cover integrating new datasets, configuring quality controls, and ensuring pipelines and APIs are robust, scalable, and production-ready.

The successful Data Operations Engineer will have outstanding collaboration skills, with strong operational instincts: taking ownership of issues, communicating clearly under pressure and caring deeply about system reliability.

Requirements

• 3+ years’ experience in a similar role in a high-performance/time-sensitive environment (e.g. Data Engineer, SRE, Software Engineer, Data Operations)
• Strong proficiency in Python, including libraries such as Pandas, Arrow & Spark
• Solid understanding of data modeling, normalization, and API development for large-scale analytical or trading systems

Nice to Have

• Experience with Lakehouse architectures (e.g. Delta Lake, Databricks, AWS)
• Exposure to real-time and historical market data (e.g. fixed income/Credit, ETFs, equities)

Rewards and Incentives

• Great base salaries and industry-leading bonuses
• Truly flat structure and highly collaborative culture, within a fun, stimulating office environment
• Generous benefits package, including commuting expenses, breakfast and lunch facilities, regular social activities and more
• Direct business impact with short feedback loop

Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.

Contact
If you feel you are a strong match for this role, please do not hesitate to get in touch:

Dominic Copsey
dominic.copsey@oxfordknight.co.uk
+44 (0) 203 475 7193
linkedin.com/in/dom-copsey-586478143/

Our client is a leading tech-driven quant and systematic hedge fund trading with offices across the globe. They leverage deep knowledge in data, research, technology and trading to deliver high-quality returns. This opportunity offers a dynamic and fast-paced environment with excellent scope for career growth.

This position sits in the Cloud Infrastructure team in London, and requires deep-level expertise in AWS services & infrastructure as this team builds cloud platforms to support trading and research. You’ll liaise with development, trading and operations teams in order to design, build and deliver secure, reliable and scalable cloud solutions for digital asset and crypto-related systems.

The successful cloud engineer will be a highly skilled communicator, happy to facilitate collaboration between engineering and the business to ensure the smooth and efficient running of cloud-based applications and tools.

Requirements

• Extensive experience with AWS services (e.g. EC2, S3, VPC and related components)
• Proficiency in scripting languages, e.g. Python or Bash, for automation
• Strong understanding of CI/CD principles & pipelines using tools, such as Jenkins or GitLab CI
• Experience with infrastructure-as-code tools (Terraform, CloudFormation or AWS CDK)
• Hands-on experience with distributed computing systems and processing large datasets
• Practical experience with containerisation and orchestration (Docker, Kubernetes)

Benefits

• Great opportunity to be part of a collaborative, creative environment where you can feel valued for your input
• Competitive salary + generous benefits
• Professional and personal development
• Relaxed, casual culture, with a healthy work-life balance

Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.

Contact
If you think you are a strong match for this job description, please do not hesitate to get in touch!

Amy Gandhi
amy.gandhi@oxfordknight.co.uk
Tel: +44 (0) 203 475 5019
linkedin.com/in/amy-gandhi-122b55109

Location: London or Amsterdam

My client is a t ier-1 prop trader/market maker, providing liquidity and accurate pricing in various financial instruments to multiple exchanges across the world.

The Trading Operations Production Support Engineering team is responsible for maintaining and scaling the low-latency trading systems. The team ensures a safe, stable, and efficient production environment while supporting profitability and sustainable growth across various regions. Collaborating closely with traders, development, and operational teams, you will deploy, monitor, troubleshoot, and optimize trading infrastructure to enhance reliability, performance, and automation.

Responsibilities

• Provide technical expertise and support to high-frequency trading floors, troubleshooting complex issues and resolving incidents in a fast-paced, dynamic setting.
• Deploy, maintain, and monitor proprietary trading applications, ensuring stability and performance in the trading environment.
• Review and analyze incidents to identify recurring themes, driving improvements to enhance automation and operational efficiency.
• Coordinate deployments of new trading products, systems, and exchanges, ensuring readiness for events such as corporate actions or special announcements.
• Architect and maintain services to maximize reliability, ensuring the trading systems operate within performance thresholds.
• Collaborate with development teams to establish best practices and ensure the long-term stability of production systems, even under extreme conditions.
• Set standards for system configuration and deployment to minimize risks and support smooth scaling.
• Manage the colocation to ensure the right level of redundancy and capacity for growth is available.
• Automate system management processes, while maintaining control over critical operations.

Requirements

Technical Skills:

• Solid experience managing complex distributed systems in Linux environments (L2/L3 support), with a strong understanding of networking fundamentals, build, deployment, and version control systems.
• Proficiency with CI/CD tooling and scripting in Python or similar languages to automate tasks.
• Experience with relational databases (e.g. PostgreSQL) or other database systems.
• Demonstrated ability to drive system improvements and work across global teams to deliver changes.

Non-Technical Skills:

• A collaborative team player with a positive attitude, capable of coordinating effectively across departments.
• A pragmatic and logical thinker who thrives in fast-paced environments, with strong troubleshooting skills and the ability to resolve incidents efficiently.
• Effective communicator, able to clearly explain technical concepts and ask insightful questions.
• Highly organized, able to manage multiple responsibilities while keeping stakeholders informed.
• Passionate about technology, curious about the interaction between hardware and software, and driven to learn and grow by embracing frequent change.
• Prior experience in high-frequency trading environments is a plus, but not required.
• Prior trading or financial experience is not needed - the onboarding program will support you in gaining all the relevant knowledge.

NB: A pplications only accepted from those located in the US or Europe

Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.

Contact
If this sounds like you, or you’d like to know more, please get in touch!

Sam Jenkins
sam.jenkins@oxfordknight.co.uk
+44 (0 )20 7663 2734
linkedin.com/in/sam-jenkins-b517021b4

Exciting opportunity at one of the fastest growing financial services firms around the world. They offer prime brokerage, clearing and financing across traditional and digital assets, and are now looking to hire world-class engineers to help build on their success.

Responsibilities will include:

• Automate infrastructure and operational workflows using IaC with Terraform and AWS CDK.
• Develop & optimize CI/CD pipelines to improve software delivery for large-scale distributed systems using Amazon CodeBuild, GitHub Actions & Terraform Enterprise
• Implement and maintain observability solutions to establish real-time monitoring and proactive incident response using Datadog and AWS CloudWatch
• Ensure high availability and performance of relational and time-series databases (PostgreSQL/QuestDB), including replication, failover strategies, and query optimization

Skills & Experience Required

• Extensive experience with AWS, including EC2, ECS, S3, RDS, Lambda, MWAA, API Gateway, Route53, SSM, EFS, Backup, DynamoDB, Cloudfront, VPC, CodeBuild, CodePipeline, CodeArtifact, Config, Elasticache, and networking components in a highly available environment.
• Strong Python programming & automation skills in Python
• Proven experience with event streaming (i.e. Kafka/Kinesis)
• Deep understanding of distributed systems architecture, fault tolerance, disaster recovery, and performance tuning
• Hands-on experience with observability and monitoring tools (e.g. Datadog, ELK, CloudWatch)
• Proven track record managing infrastructure with Terraform or AWS CDK
• Strong background in incident management, system reliability, and operational leadership, with experience conducting root cause analysis & implementing reliability improvements

Benefits & Incentives

• Build and scale mission-critical systems that power global financial markets
• Work in a technology-driven culture focused on automation, performance, and reliability
• Contribute to shaping the future of financial technology
• Engage with cutting-edge AWS, SRE, and observability tools in a fast-moving environment

Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.

Contact
If you feel you are suitable for this role, drop me an email or give me a call!

Jack Peck
[e] jack.peck@oxfordknight.co.uk
[t] +44 20 3745 6537
linkedin.com/in/jack-peck-448a70131

Location: New York or London

Salary: 200-500k usd

Summary

A multi-strategy hedge fund focused on delivering consistent returns through innovative trading strategies, robust risk management, and cutting-edge technology. As they scale, they’re seeking a pragmatic Linux Engineer to join a successful and growing team.

In this pivotal role, you will architect and execute strategic changes to the Linux environment as well as oversee maintenance of that environment. Your main responsibility will be supporting the fund’s expansion, including new trading types, locations, and deployment mechanisms for software teams. Additionally, you’ll also ensure low-latency trading applications run seamlessly across the global network of co-location sites.

Requirements

• 5+ years’ hands-on Linux experience, with exposure to both Debian and RHEL preferred
• Expertise in performance analysis and kernel tuning, particularly as it relates to low-latency systems
• Ability to use Python and Ansible to fully automate deployment, with knowledge of Nix/NixOS a plus
• Working knowledge of networking, storage, and clustering technologies
• Bachelor’s degree in Computer Science (or related field)
• Previous experience within Financial Services is a plus

Benefits

• Competitive base salaries and performance-based bonuses
• Very collaborative culture, ideas are implemented
• Work with passionate, forward-thinking, incredibly smart people

Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.

Contact
If you feel you are a strong match for this role, please don’t hesitate to get in touch:

Dominic Copsey
dominic.copsey@oxfordknight.co.uk
+44 (0) 203 475 7193
linkedin.com/in/dom-copsey-586478143/

The DevOps team is responsible for contributing to and reusing a set of standards-based DevOps patterns within a shared DevOps culture that will enable the Developers they partner with to accelerate the time-to-market of critical software applications to the Cloud and on-prem.

This is an opportunity to collaborate locally and across the globe with highly motivated and knowledgeable Architecture, Application Delivery Engineers,

Site Reliability Engineers, and Developers in our effort to continually improve the DevOps capabilities.

Our Lead DevOps at LSEG are responsible for ensuring the global availability of our analytics application and services. We place a high degree of trust and responsibility in the hands of our DevOps.

• Collaborate with cross-functional teams to define software system requirements and objectives .

• Design, develop, and maintain software applications infrastructures, focusing on scalability, reliability, automation, and performance.

• Develop, Implement, and maintain DevOps practices, including continuous integration, deployment, and automated testing.

• Providing technical support to Operations or other development teams.

• Manage software configuration, deployment, and release processes.

• Monitor and optimize cloud costs.

• Monitor and maintain applications security profile.

Essential Skills & Experience Required:

• 2+ years of professional experience in DevOps practices and Cloud

• Knowledge/experience of Azure or AWS Cloud Technologies (AKS, ACR, Azure Functions, Azure Web App etc.).

• Proficiency with Version Control Tools and CI/CD Tools (Git, GitLab) and related concepts such as branching/versioning strategies etc.

• Hands-on experience in developing CICD workflows/pipelines.

• Good knowledge of IaC and related technologies such as Terraform.

• Docker, containerisation and related orchestration frameworks such as Kubernetes

• Intimate knowledge of Linux environments, including system administration, networking, IAM, and well-developed problem solving skills.

• Good knowledge with implementing security standards inside the CI/CD pipelines ( Sonarqube , Semgrep etc. )

• Positive demeanour about learning new skills and technologies.

• Dedicated, goal-oriented teammate with good interpersonal skills.

• Ability to work in highly agile, Sprint-based team environment.

Education/ Certifications:

• A relevant degree or equivalent is desirable, but experience and the right approach to work are just as important.

• AWS/Azure certification a nice to have.

Career Stage:
Manager

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you’re ready to take your career to the next level and make a significant impact, we’d love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants’ and employees’ religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject .

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.

Our client, a leading systematic market maker, is looking for a SRE to work on their internal high‑performance trading systems. This role offers a rare opportunity to collaborate with one of the most successful market‑making firms and top figures in the industry. This is a high‑impact, high‑ownership role with significant scope to accelerate one’s career.

The ideal candidate is from a top financial institution, sitting close to trading systems, and understands the ins and outs of low‑latency, highly distributed trading systems. With a clear communication style and strong commercial mindset, this role will involve close collaboration with traders. In addition to a deep understanding of UNIX/Linux command lines, the candidate should have a strong grasp of application‑level networking.

Responsibilities:
* Ensure real‑time trading systems remain stable and performance, proactively monitoring, diagnosing, and resolving issues that could impact trading or market connectivity.
* Act as the first line of defense for production incidents, leading live troubleshooting, performing root‑cause analysis, and preventing recurrence in a highly distributed, low‑latency environment.
* Partner closely with trading, engineering, and infrastructure teams to plan capacity, execute upgrades, and safely migrate applications with zero or minimal disruption.
* Improve system reliability and efficiency through automation, leveraging Python, Bash, and SQL to streamline operational workflows and reduce manual intervention.
* Continuously tune and optimize systems and networks, applying deep OS, networking, and performance knowledge to support the demands of a high‑frequency trading environment.

Requirements:
* Strong foundations in Linux/UNIX, networking (TCP/IP, UDP), SQL, and scripting (Python/Bash) for early‑career candidates
* Experience with real‑time production support, root‑cause analysis, and distributed systems for senior candidates
* Capability to manage large‑scale infrastructure, capacity planning, migrations, and upgrades
* Excellent collaboration, communication, multitasking, and problem‑solving skills
* Preferred exposure to trading systems, intermediate Python development, and OS performance tuning

Production Support Engineer - Trading Systems

This is a rare chance to join the technology backbone of one of the world’s most ambitious digital asset firms - a company that operates at the intersection of institutional finance and crypto markets, moving serious capital across global venues every day.

The team supporting their trading and risk infrastructure needs a sharp, independent engineer who thrives in fast-moving environments. When the market is open, every second counts - and your instincts, speed, and depth of knowledge are what keep things running. This is not a service desk. You will be deep in logs, databases, and systems alongside traders and engineers - hunting root causes, not managing queues.

Key Responsibilities

• Lead investigation and resolution of production incidents across trading and risk systems
• Dig into logs, SQL, and system metrics to find root causes - not just symptoms
• Work directly with traders, quant teams and developers during live incidents
• Support order flow, execution pipelines, market data feeds, and trade lifecycle processes
• Build automation and tooling that eliminates repetitive manual operations
• Improve monitoring, observability, and alerting across the stack
• Participate in on-call and out-of-hours incident response

Key skills

• Linux / Unix environments
• SQL for investigation and debugging
• Production incident troubleshooting
• Monitoring tools - Geneos, Splunk, Dynatrace
• Scripting and automation - Python, Bash

Highly valued experience

• FIX protocol
• Exchange connectivity and market data systems
• Messaging systems - Kafka, Solace, Tibco, MQ
• Order management systems (OMS / EMS)
• Trading platform infrastructure
• Understanding of trading lifecycle and order flow

Linux Systems Engineer | World-Class Hedge Fund

Location: Paris

Our client is a world‑class hedge fund, recognised for its elite technology organisation and scientific, data‑driven culture. They are now seeking a Linux Systems Engineer to join a global team operating at the core of a large‑scale, mission‑critical Linux environment powering cutting‑edge quantitative research and high‑performance trading.

This is an opportunity to immerse yourself in one of the industry’s most advanced Linux estates-hands‑on across high‑availability platforms, large compute clusters, and automation tooling-while partnering with exceptional engineers to elevate observability, resilience, and platform automation. As a key member of the global infrastructure support organisation, you will help support, scale, and evolve the firm’s next‑generation Linux trading and research platforms.

Key Responsibilities

• Administer, support, and optimise Linux‑based trading and research platforms within a high‑availability, ultra‑low‑latency production environment.
• Deploy new infrastructure and manage end‑to‑end server lifecycle processes, from bare‑metal installation through to full OS provisioning.
• Collaborate with engineering teams to enhance automation, monitoring, and observability, driving efficiency, reliability, and long‑term scalability.
• Troubleshoot complex production incidents, conduct deep‑dive root‑cause analysis, and implement enduring stability improvements.
• Produce and maintain high‑quality documentation while contributing to process refinement and knowledge sharing across the global infrastructure group.
• Participate in an on‑call rotation and provide occasional out‑of‑hours (primarily remote) support.

Key Requirements

• 4+ years’ experience in infrastructure, systems engineering, or Linux platform support within high‑availability, mission‑critical environments.
• Strong hands‑on Linux administration experience with Red Hat, CentOS, or Rocky Linux.
• Proven experience delivering full server lifecycle builds, including hardware installation, OS deployment, and configuration.
• Solid understanding of AMD and Intel server hardware, with the ability to troubleshoot at both system and component level.
• Practical experience with infrastructure automation tools (e.g., Ansible).
• Scripting proficiency in Python and Bash for automation, tooling, and operational workflows.

About Caxton Associates: Caxton Associates, founded in 1983, is a global trading and investment firm with offices in London, New York, Singapore, Monaco, Dubai and Bengaluru. Caxton Associates’ primary business is to manage client and proprietary capital through a suite of products designed to fit the specific needs of investors. Employing a multi-portfolio manager framework, Caxton excels in discretionary global macro investing, leveraging its diversified expertise across asset classes and markets. About the role: We are seeking a Database Engineer to join our London-based technology team. This is a hands-on role focused on design, development, and optimisation of the firm’s core data platforms. You will play a key role in shaping and scaling the firm’s data platform, directly supporting trading and investment decision-making. The role requires strong technical expertise, attention to data quality, and the ability to operate in a fast-paced, business-critical environment. Responsibilities: 1. Collaborate with Technology, Quant, and Risk teams to deliver data solutions for reporting and analytics 2. Design and implement scalable database schemas, tables, indexes, and stored procedures 3. Develop and maintain Python ETL pipelines for trade, position, and pricing data 4. Build and support reporting and visualization solutions using Tableau 5. Ensure data integrity, security, and high availability across production and non-production environments 6. Monitor and optimize database performance (query tuning, indexing, execution plans) 7. Work with AWS services (RDS, Aurora, S3) to build scalable, resilient data platforms 8. Perform database maintenance, including backups, recovery, and integrity checks 9. Implement database security best practices, including user permissions and roles 10. Create and maintain detailed documentation of database structures, processes, and best practices Experience: 1. At least 5 years experience working with relational databases 2. Strong SQL skills, including T-SQL, stored procedures, views, and functions 3. Proven experience in database design (normalisation, optimisation, indexing strategies) 4. Solid experience in performance tuning and troubleshooting database issues 5. Experience with data visualisation tools (e.g. Tableau or similar) 6. Experience using Python for data processing, automation, and ETL workflows 7. Familiarity with CI/CD pipelines and version control (Git) 8. Practical experience with database administration (backups, restores, security, DR) 9. Experience with AWS cloud services (RDS, Aurora, S3) 10. Familiarity with financial services environments is a plus 11. Displays and operates at the highest degree of ethics and integrity.

My client is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. A technology and data driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped the collaborative mindset, enabling them to solve the most complex challenges. They have a culture of innovation which continuously drives their ambition to deliver high quality returns for investors.

About the Role:

The successful candidate will join the global infrastructure team and be responsible for managing and maintaining Network Infrastructure and Automations for the firm. With a strict IAC (Infrastructure-as-Code) mindset implemented here, it is crucial that candidates are able to demonstrate operation of complex infrastructure at scale, which have been delivered through a software- and automation-driven mindset.

The team will be focused on maintaining the service availability, reliability, and security of the platform. Developing observability tooling, self-healing/event driven automations, and performing troubleshooting activities. Providing ongoing support and operational improvements for existing network infrastructure, whilst building capability to operate a high-performance compute datacentre.

Skills & Experience Required:

• Experience monitoring & resolving incidents across Low Latency LAN, Datacentre LAN, WAN transit, and Internet/cloud connectivity.
• Expert troubleshooting skills of network infrastructure & collaborating with vendor support teams when required to perform deep investigation.
• Oversight & development of monitoring dashboards, responding proactively to alerts with appropriate level of priority. Taking responsibility for continuous improvement of alerting and the overall observability stack.
• Running post-incident reviews finding opportunities to improve the availability and reliability of infrastructure offerings.
• Delivery of BAU changes through automation wherever possible, working with research & other infrastructure engineering teams in a highly collaborative manner.
• Perform trend analysis using various data sources aiming to seek out potential issues, improve correlation and find capacity concerns.
• Defining SLOs to ensure the high availability of network services and infrastructure.
• Ability to provide considerable support of network automation & associated tooling, such as CI/CD pipelines, orchestration, Ansible, Python, GitOps practices, amongst others.
• Be responsible for releasing into production environments by providing high quality reviews of merges and scheduled pushes of changes/features/capabilities.
• Initiative to find opportunities to automate high frequency tasks. Leading the effort to deliver a solution alongside Network Engineering, Infra Automation/DevOps and across functions.
• You will have good knowledge of infrastructure metric collection and visualisation tooling, e.g. Kibana, Splunk, Prometheus & Grafana.
• You will stay informed on industry trends & emerging technologies to ensure the automation and practices remains cutting-edge.
• Clear networking knowledge at Cisco CCNP level, either through demonstrable experience or verifiable qualifications.

Whilst we carefully review all applications, to all jobs, due to the high volume of applications we receive it is not possible to respond to those who have not been successful.

Contact
If this sounds like you, or you’d like more information, please get in touch:

George Hutchinson-Binks
george.hutchinson-binks@oxfordknight.co.uk
(+44) 07885 545220
linkedin.com/in/george-hutchinson-binks-a62a69252

Play a key role in building and supporting reliable trading infrastructure and connectivity systems. You'll collaborate across teams to deliver scalable, resilient solutions that support research and trading operations. Your responsibilities will include: 1. Designing, building, and maintaining market connectivity systems 2. Monitoring and supporting production infrastructure and applications 3. Applying modern DevOps practices to improve operational efficiency 4. Enhancing system redundancy and reliability 5. Collaborating with trading, research, and technology teams 6. Continuously refining trading desk systems 7. Providing operational support to ensure smooth system performance Why Join Us: 1. Work in a collaborative environment where ideas are openly shared 2. Contribute to critical systems supporting real-world trading operations 3. Gain exposure to cutting-edge quantitative and technical environments 4. Be part of a team that values communication, teamwork, and innovation 5. Opportunity to expand your skills across engineering and operations About You: You’re a pragmatic problem solver with strong technical skills and a collaborative mindset. You communicate complex ideas clearly, take initiative, and enjoy contributing beyond your core responsibilities. If you’re excited to build resilient systems, collaborate with talented technical minds, and make meaningful contributions to high-impact platforms, this is your chance to help shape the future of trading technology.

London 6 Months contract We are looking for a proactive and technically strong Cloud Platform Engineer to join a leading Investment client’s operations team on a contract basis. This role blends cloud engineering, automation at scale, monitoring, and structured operational support. You will play a key role in maintaining platform reliability, improving automation, strengthening observability, and ensuring operational best practice across our Microsoft Azure environment. This position is ideal for someone who enjoys solving complex problems, automating repetitive tasks, and working within a well-structured ITIL-aligned operations environment. Key Responsibilities 1. Design, develop, and maintain automation solutions using PowerShell to optimise workflows and improve operational efficiency 2. Monitor platform performance, availability, and security using tools such as Datadog 3. 2nd/3rd line Infrastructure support 4. Support and maintain Microsoft Azure services, including governance, networking, and security configurations 5. Manage and support identity and endpoint services including: 6. Microsoft Intune 7. Microsoft Entra ID (Azure AD) 8. Active Directory (Group Policy, user lifecycle, device management, conditional access) 9. Participate in Incident and Change Management processes aligned to ITIL best practices 10. Investigate, diagnose, and resolve technical issues using structured troubleshooting methods 11. Contribute to continuous improvement of operational processes, documentation, and automation tooling 12. Work within defined SLAs, escalation paths, and change controls Technical Skills & Experience Essential 1. Strong PowerShell scripting experience for automation and infrastructure tooling 2. Hands-on experience with monitoring and observability platforms (preferably Datadog) 3. Solid working knowledge of Microsoft Azure services, governance, networking, and security 4. Practical experience with: 5. Microsoft Intune 6. Microsoft Entra ID (Azure AD) 7. Active Directory (Group Policy, identity lifecycle, device management) 8. Experience working in structured operations or support environments with defined SLAs and change management controls 9. Good understanding of ITIL principles, particularly Incident and Change Management Desirable 1. Experience improving monitoring maturity and observability practices 2. Experience implementing automation to reduce operational overhead 3. Exposure to security best practices in cloud environments

ABOUT US:

LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services - and our open-access model - we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.

LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across EMEA, North America, Latin America and Asia Pacific. We employ 25,000 people globally, more than half located in Asia Pacific. LSEG’s ticker symbol is LSEG.

OUR PEOPLE:

People are at the heart of what we do and drive the success of our business. Our culture of connecting, creating opportunity and delivering excellence shape how we think, how we do things and how we help our people fulfil their potential. We embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. We break down barriers and encourage teamwork, enabling innovation and rapid development of solutions that make a difference. Our workplace generates an enriching and rewarding experience for our people and customers alike. Our vision is to build an inclusive culture in which everyone feels encouraged to fulfil their potential.

We know that real personal growth cannot be achieved by simply climbing a career ladder - which is why we encourage and enable a wealth of avenues and interesting opportunities for everyone to broaden and deepen their skills and expertise. As a global organisation spanning 70 countries and one rooted in a culture of growth, opportunity, diversity and innovation, LSEG is a place where everyone can grow, develop and fulfil your potential with meaningful careers.

ROLE SUMMARY:

This is an exciting opportunity to join a high impact engineering team responsible for designing and evolving LSEG’s mission critical LAN and data centre connectivity platforms. You will be working at the forefront of enterprise and low latency LAN network design, delivering resilient, best in class architectures that underpin global real time trading and market data systems.

As part of the specialised network connectivity and hybrid cloud engineering teams, you will help shape and deliver high performance network services across on premise and hybrid cloud environments. The team plays a central role in the firm’s long term transformation, where innovation, technical depth, and continuous learning are core principles.

We are looking for engineers who thrive in complex environments, enjoy solving high performance networking challenges, and want to influence the evolution of next generation connectivity platforms.

WHAT YOU’LL BE DOING:

LAN & Connectivity Engineering

• Lead the design, optimisation, and evolution of LAN and data centre networking architectures, including switching, routing, traffic engineering, and segmentation.
• Deliver low latency, deterministic connectivity solutions optimised for real time trading and market data workloads.
• Develop and maintain network topologies, high availability designs, and reference architectures for use across LSEG environments.
• Implement and validate LAN features such as EVPN/VXLAN fabrics, QoS, multicast, and performance tuned network services.

Technical Influence & Collaboration

• Serve as a LAN design specialist, guiding engineering teams and contributing to architectural forums, design reviews, and platform roadmap discussions.
• Partner closely with infrastructure, application, and cloud engineering teams to define connectivity requirements and support workload onboarding.
• Provide consultancy and technical direction to teams integrating their services into LAN or hybrid network environments.

Operational Excellence

• Lead troubleshooting and root cause analysis activities across complex LAN, campus, and data centre connectivity environments.
• Contribute to improvements in observability, monitoring, network telemetry, and performance diagnostics.
• Evaluate emerging LAN technologies, vendors, and design innovations, presenting findings to senior engineering stakeholders.

Ways of Working

• Work effectively within an agile, iterative delivery model.
• Balance multiple priorities across a dynamic, fast moving environment.
• Champion high quality engineering standards and ensure designs support resilience, scalability, and security.

WHAT YOU’LL BRING:

• Strong experience in LAN and data centre network design at enterprise scale.
• Deep understanding of Layer 2/3 architectures, including STP variants, MLAG, VLANs, VXLAN/EVPN, BGP, OSPF, and ECMP.
• Proven background in building low latency, high performance network environments (preferably financial services or similarly demanding workloads).
• Strong knowledge of network segmentation, policy enforcement, redundancy design, and high availability strategies.
• Solid understanding of Linux networking, packet flows, NIC capabilities, traffic shaping, and performance tuning.
• Understanding of modern container technologies, particularly Kubernetes.
• Awareness of container networking concepts (e.g., CNI plugins), and how workloads consume network resources in hybrid cloud or on-prem container environments.
• Familiarity with Gitbased workflows, CI/CD principles, or automation tooling (Terraform, Ansible, scripting languages).
• Strong communication skills with the ability to translate complex LAN design topics to technical and nontechnical stakeholders.
• Excellent analytical and problem solving skills across layered network and infrastructure environments.
• Comfortable working in a fastpaced environment with changing priorities.

If you are passionate about LAN engineering, low latency performance tuning, and high impact infrastructure delivery, this role offers a unique chance to make a significant contribution to LSEG’s global platforms.

Career Stage:
Manager

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you’re ready to take your career to the next level and make a significant impact, we’d love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants’ and employees’ religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject .

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.