A new role has become available for a DevOps Engineer at a company which is developing cutting edge wearable payments technology. With this payment solution being used by financial institutions, wearable manufacturers as well as events and stadium owners, the possible applications of this secure payment technology are endless.

As a DevOps Engineer you will be in charge of designing and maintaining both cloud and physical infrastructure. For the cloud side, they use AWS and as part of the physical infrastructure, you will need to go to their datacentre from time to time. This role is ideal for a junior-mid level engineer, hoping to exapnd their skills and knowledge.

This is a highly varied role where you will get the opporunity to own and drive forward DevOps projects in this company. Some you the AWS services you will get to use include: EC2, DynamoDB, Elastic Beanstalk, Route 53, Lambda, Cloudfront, AWS Firewall Manager, Terraform, Certificate Manager, Cloudwatch, CloudTrail and SNS/SQS.

Requirements:

• AWS experience
• Cisco and Juniper switches / firewalls
• Linux based servers or similar

Apply: Kristian AT enterpriserecruitment DOT com
Position: DevOps Engineer - Wearables
Salary: Up to 60K

OCI Cloud Administrator l Security Lead l Oracle Cloud Infrastructure l PaaS / IaaS l DV Cleared l Hybrid | Competitive PD l Outside IR35 l London

Method Resourcing is working with a partnering consultancy that is looking for an OCI Cloud Administrator / Security Lead to take ownership of the secure operation of Oracle Cloud Infrastructure (OCI) within a highly regulated, security-critical environment.

This role requires hands-on OCI experience and active DV clearance, with privileged administrator access across cloud and security tooling.

Key Requirements:

• Hands-on administration of OCI environments including tenancies, networking, compute, storage and IAM policies
• Strong experience across OCI PaaS / IaaS services
• Operation of security-critical tooling hosted in IaaS (logging, monitoring, vulnerability scanning)
• Implementation and maintenance of preventative and detective security controls
• Experience managing environment cloning and data masking activities
• Support of secure test, backup and disaster recovery environments
• Strong Linux background with experience using Terraform and infrastructure automation
• Comfortable operating with privileged access in secure, regulated environments
• DV clearance is mandatory

Contract Details:

• Location: On-site / Hybrid (London as required)
• Security Clearance: DV (must be active)
• IR35: Outside
• Duration: Initial contract with extension potential
• Rate: Competitive day rate

For more information or to apply, please send your CV to .

OCI Cloud Administrator l Security Lead l Oracle Cloud Infrastructure l DV Cleared l PaaS / IaaS l Hybrid | Outside IR35 l London

RSG Plc is acting as an Employment Business in relation to this vacancy.

Belcan are hiring on a Permanent basis for a Cyber SME specialising in OT - Operational Technology.

Hybrid working from either Cheltenham or our South West London office with client visits as required.

The OT Cyber Security team is a function within the business that services our framework partners, OT delivery, and is a key growth area for the business.

Role & Duties

Lead and manage multiple workstreams within the team to ensure successful delivery.

Oversee OT Cyber technical delivery, both directly and through delegated tasks.

Take full accountability for team deliverables, including quality assurance, approval, and sign-off.

Provide line management, technical mentoring, and guidance to the current team of three, with planned expansion in 2026.

Act as a client-facing Subject Matter Expert (SME) for existing and prospective clients.

Collaborate with internal stakeholders, including sales teams, client partners, and global technical delivery teams (Belcan and Cognizant).

Support business development by contributing technical solutions and proposal content.

Assist in developing and maintaining internal OT Cyber procedures and processes.

Experience and Qualifications

Roles involving management, design, implementation, maintenance, or support of security solutions within IoT and OT/ICS domains.

Strong background in Software Engineering, Systems Engineering, or a related discipline.

Proven understanding and hands-on experience with OT/ICS security standards and frameworks, such as ISA/IEC 62443, NCSC CAF Framework, NIST CSF, or similar.

Knowledge of technical security solutions used in IoT and OT/ICS systems and networks.

Familiarity with key security concepts in ICS/OT environments, including network segmentation and defense-in-depth strategies.

Experience in developing components of Cybersecurity Management System (CSMS) procedures and policies.

Technical proficiency in:

• Linux and Linux-based systems.
• IP networking and principles of network deployment.

Baseline knowledge across the eight security domains defined by ISC, with demonstrable expertise in at least three and a desire to expand further.

Ability to produce professional documentation, including diagrams, reports, analyses, and methodologies, in English.

Understanding of security-related operational processes within IoT and OT/ICS environments.

Awareness of technologies, assets, communication protocols, and architectures commonly used in IoT and OT/ICS systems.

Familiarity with functional safety concepts (e.g., Safety Instrumented Systems - SIS).

To qualify for the role you must have:

Completed technical higher education in the field of industrial automation, computer science, electronics or other relevant field

Certificates or education related to industrial automation / engineering etc.

Certificates of security, preferably in ICS or IoT domain (CSSA, ISA 62443, GICSP-GIAC, SABSA, CISSP, CISM)

Extensive experience within Control Systems and Operational Technology (preferred)

Good experience within OT Cyber

Ideally, you’ll also have:

Key sector experience in: Oil & Gas, Utilities or Energy industry, or other Critical National Infrastructure or Operators of Essential Services.

About Us

Belcan Advanced Solutions (BAS) is a specialist technical services provider and engineering consultancy with core services encompassing multi-disciplinary design engineering, multi-vendor systems delivery, operational technology (OT) cyber security, and COMAH and technical safety compliance.

Founded in 1958, Belcan has become a global technological leader and established go to Engineering Services provider, working within many industries including Aerospace, Defence, Marine, Nuclear, Automotive and Cyber Security with over 10,000 professionals serving hundreds of customers in over 60 locations worldwide.

Belcan was acquired by Cognizant Technology Solutions in 2024.

This vacancy is being advertised by Belcan.

Location:London (Hybrid)

Type:Permanent

Industry:High-Performance Trading / Financial Markets

About the Company

Immersive Finance provides institutional-grade risk infrastructure for digital asset derivatives. Our team comprises seasoned traders, quantitative researchers, and technologists with decades of experience at leading buy- and sell-side institutions. We specialise in advanced risk management solutions, pricing analytics, and market data, enabling institutional clients to capitalise on opportunities in digital asset derivatives. We are committed to delivering cutting-edge technology and insights to clients operating in this dynamic market.

Must Have Experience

• Experience in delivering production code.
• 5-10 yearsin Finance or Trading Systems.
• AdvancedC++skills.
• StrongPythonengineering experience.
• Strong understanding ofdatabases(SQL and high-performance solutions).
• Expertise in building and supportinghigh-availability,mission-critical systems.

Desireable

• Experience building and deploying docker containers.
• Experience ofFX,Crypto, orDerivativesmarkets.
• Experience withPostgres,ClickHouse, or other high-performance storage solutions.
• Exposure to real-time data, low-latency networking, and distributed systems.

Our Stack

• Python, C++.
• Multi-cloud infrastructure/deployment.
• Standard SDLC (i.e., Git workflow, build, continuous integration).
• Git/JIRA/Confluence.
• High-availability database clusters (Postgres Timescale DB)
• Queues (i.e., Kafka).
• Linux.
• High-performance distributed contributing.
• Interfaces - API/Websockets.

What We’re Looking For

• Someone who ships high-quality code quickly.
• Someone who doesn’t need hand-holding,
• Someone who likes solving gnarly engineering problems in fast-moving markets.
• Someone who takes ownership and isn’t afraid to call out bad assumptions.

Why Join Us?

You’ll work in a small, sharp, highly technical environment where your engineering decisions directly shape the platform. No bureaucracy, no pointless meetings, no slowdowns; just hard problems, smart people, and serious impact.

What You’ll Do

• Design and build robust software as a service providing tools for real-time pricing, market data, risk management, and position lifecycle management of digital assets and structured products.
• Work across C++, Python, and modern database technologies to support execution, pricing, risk, and market data.
• Engineer systems that are resilient, highly available, and capable of handling high throughput.
• Collaborate closely with quants, products, and founders to ship features that genuinely move the needle.
• Optimise performance, streamline infrastructure, and keep the platform rock-solid under load.

Salary: £55 - 72K + Benefits
Location: London or Manchester (aligned to office for client on-site requirements)
Working Pattern: Hybrid / On-site depending on client needs
Security Clearance: DV Clearance required - Can Start With Active SC

You will join a people-focused digital consultancy supporting data-driven services across the UK public sector. The organisation values collaboration, inclusion, and work-life balance, and actively supports continuous learning and professional development through access to training, modern engineering tools, and supportive multidisciplinary teams.

The consultancy works closely with government departments and public sector organisations to design, build, and operate secure, scalable data platforms that enable advanced analytics, data science, and machine learning. Diversity and inclusion are core values, and hiring decisions are based on skills, experience, and potential. Empowering individuals and building strong teams are central to delivering meaningful outcomes for clients and citizens.

This role is suited to Data Software Engineers with a strong technical foundation and an interest in data engineering, data science, and machine learning. You will work within agile, multidisciplinary teams alongside data scientists, platform engineers, and stakeholders to build robust data processing systems in secure environments.

Role Responsibilities

Design, build, and maintain scalable data processing and integration systems to support data science and analytics workloads.

Develop high-quality, well-tested software using a Test-Driven Development (TDD) approach.

Collaborate closely with data scientists to enable effective use of data for analytics and machine learning.

Build and operate cloud-based solutions, with a strong focus on AWS services.

Work with messaging, streaming, or data flow technologies to support real-time and batch data processing.

Contribute to infrastructure and platform automation using Infrastructure as Code.

Participate in agile ceremonies, technical design discussions, and code reviews.

Ensure solutions meet security, performance, and reliability requirements within public sector environments.

What You Will Bring to the Team

A strong interest in data, particularly data engineering, data science, or machine learning.

A solid technical background, with experience in Java, Python, TypeScript, or similar languages.

Experience developing software using TDD or a strong willingness to adopt TDD practices.

Strong problem-solving skills and the ability to work collaboratively within multidisciplinary teams.

Good communication skills, with the ability to explain technical concepts to both technical and non-technical stakeholders.

A proactive mindset with attention to detail and a commitment to quality.

Desirable Skills and Experience

Senior experience working with cloud platforms, ideally AWS.

A strong Linux background.

Experience with data integration and messaging technologies such as Apache NiFi, Apache Kafka, RabbitMQ, or similar tools.

Experience using Infrastructure as Code tools such as Terraform or CloudFormation.

Previous experience working in a consultancy or public sector delivery environment.

Familiarity with secure or regulated environments.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Role Overview

Role / Job Title: OpenShift SRE SME

Work Location: London / Sheffield
Mode of Working: Hybrid
Office Requirement (if hybrid): 10 days a month

The Role

We are seeking a skilled OpenShift Site Reliability Engineer (SRE) to join our team.

You need to have good hands-on experience on SRE with OpenShift virtualization and Kubernetes.

Your Responsibilities

In this role, you will be responsible for:

Ensuring the reliability, availability, and performance of our OpenShift-based virtual/container platforms and services with a focus on automation.
Work and collaborate across teams, such as Applications, Hardware, and Network. Develop secure service architecture using cloud-native technologies.
Develop systems, primarily in Shell scripting, YAML, Ruby, Python and Go language, to prevent outages through automatic scanning and remediation. Establish and enforce SRE best practices through platform constraints and high-fidelity system modeling. Participate in an on-call rotation.

Your Profile Essential Skills / Knowledge / Experience

Hands-on experience with OpenShift virtualization and Kubernetes administration.
Understanding of distributed systems and common distributed system failure domains. Experience managing a production service with RedHat, Windows and ESXi.
Strong knowledge of Linux systems and networking.
Experience with monitoring, logging, alerting & observability tools (e.g., Otel, Prometheus, Grafana, Slunk etc.).
Proficiency in scripting languages Python, Shell, Go Lang, Terraform etc.
Familiarity with CI/CD tools (e.g., Jenkins, GitLab CI).
Understanding containerization (Docker) and microservices architecture.
Ansible configuration management and deployment.

Desirable Skills / Knowledge / Experience / Personal Attributes

Proven experience in compute, OpenShift, Kubernetes, hypervisors, storage, Windows, networks and Linux.
Work with industry groups and vendors outside of HSBC to establish and maintain HSBC’s involvement and influence.
Accountability for the control and compliance of the engineering process.
Promote innovation and adoption of cutting-edge specialist technologies and practices within the domain.
Promote development of engineers through coaching and mentoring.
Consult as required in other areas to assist and provide a different perspective to programmes or projects that require it.
Good problem-solving and communication skills.

The Android Platform Engineer will be responsible for:

• Designing, developing, and testing bespoke Android software components
• Working across the full Android stack, including applications, platform services, and system-level code
• Collaborating with cross-functional teams to deliver reliable, high-quality software
• Investigating, troubleshooting, and optimising performance and security issues
• Contributing to software architecture decisions and promoting best practices for Android development

Candidates should demonstrate:

• Strong experience in Android app development using Java and Android Studio
• Exposure to Android or Linux internals
• Proficiency in low-level coding languages, such as C and C++
• Understanding of software development lifecycle, testing, and version control (e.g., Git)
• Familiarity with agile development methodologies, such as Scrum or Kanban
• Ability to solve complex, technical problems independently and collaboratively

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Hedge Fund background essential

C++ (Version 11 upwards), Linux, Python (nice to have). Trading systems experience - ideally experience working in the equities space.
Ideally the technical has experience with algo implementation.

Quantitative Developer - Equities Technology

We are in search of a Quantitative Developer to join our team who is passionate about designing, architecting, and implementing low latency C++ systems that are not only robust, resilient, and accurate, but also exceptionally fast. Our team works directly with the firm’s central trading teams. By constructing and maintaining this high-performance infrastructure used by these teams, this developer will enable new trading opportunities across businesses and regions, allowing the best possible execution performance.

Job Duties

• Development of execution algorithms, order management systems, strategy containers, connectivity, and messaging systems.
• Work directly with central trading teams to optimize the firm’s overall execution performance.
• Enhance the platform’s efficiency by utilizing network and systems programming, along with other advanced techniques to reduce latency.
• Create systems, interfaces, and tools for historical market data and trading simulations to boost research productivity and system testability.
• Assist in building and maintaining our automated tests, performance benchmark framework, and other tools
• Collaborate closely with trading teams to gather requirements and develop solutions in a fast-paced environment

Qualifications

• 5+ years of professional experience in a Front Office, financial services environment as a senior contributor
• 10+ years cumulative, professional experience
• Strong background in data structures, algorithms, and object-oriented programming in C++

Permanent role - Central London based - 5 days a week in the office

By applying to this job you are sending us your CV, which may contain personal information. Please refer to our Privacy Notice to understand how we process this information. In short, in order to supply you with work finding services, we will hold and process your personal data, and only with your express permission we will share this personal data with a client (or a third party working on behalf of the client) by email or by upload to the Client/third parties vendor management system. By giving us permission to send your CV to a client, this constitutes permission to share the personal data that would be necessary to consider your application, interview you (Phone/video/face to face) and if successful hire you.

Scope AT acts as an employment agency for Permanent Recruitment and an employment business for the supply of temporary workers. By applying for this job you accept the Terms and Conditions, Data Protection Policy, Privacy Notice and Disclaimers which can be found at our website.

Investment Banking - Low Latency C++ Developer - financial markets/Linux/Scripting/low latency/TCP/IP

PURPOSE AND SUMMARY
We are looking for a C++ developer to be part of the low latency development team. The team provides industry leading low-latency trading services for our clients, utilizing FPGA, C++ and Java technologies. The candidate will be focusing on the C++ components.

The ideal candidate:
Is motivated by working in a high performing team,
Is flexible to change of work streams as business priorities change or problems arise,
Likes to learn from others as well as improve and invent,
Knows that the only way to make things better is to do it, not to just talk about it.
Candidate must enjoy working in an agile development environment, where the measure of success is the swift and frequent delivery of useful software.

ESSENTIAL DUTIES AND RESPONSIBILITIES
Plan, design, develop, document, test, deploy, and support new and existing features/modules

SKILLS & EXPERIENCES ASSESSMENT
7+ years of C/C++ development experience
Experience with financial markets/clients
Experience with order entry gateway development.
Experience with market data
Reasonable knowledge of Linux
Some Scripting knowledge
Interest and some knowledge of principles of developing for low latency
Relationship Builder
Ability to work under pressure to meet targets
Understanding of TCP/IP protocol a plus

Permanent role - hybrid working - Central London based

By applying to this job you are sending us your CV, which may contain personal information. Please refer to our Privacy Notice to understand how we process this information. In short, in order to supply you with work finding services, we will hold and process your personal data, and only with your express permission we will share this personal data with a client (or a third party working on behalf of the client) by email or by upload to the Client/third parties vendor management system. By giving us permission to send your CV to a client, this constitutes permission to share the personal data that would be necessary to consider your application, interview you (Phone/video/face to face) and if successful hire you.

Scope AT acts as an employment agency for Permanent Recruitment and an employment business for the supply of temporary workers. By applying for this job you accept the Terms and Conditions, Data Protection Policy, Privacy Notice and Disclaimers which can be found at our website.

Job Title:
Site Reliability Engineer
Location:
Remote with 1 day per week in London
Salary:
up to £75,000 base

The Company
We are working with an established technology business that has just secured its first external round of funding after more than 10 years of organic growth. The investment marks a major turning point for the company as they scale their platform, expand their engineering function, and modernise parts of their infrastructure.

They are now looking for a Site Reliability Engineer who enjoys getting stuck in, takes pride in their work, and prefers solving real problems over sitting in endless meetings. The team is approachable, low ego, and collaborative. This is a place for engineers who like autonomy, trust, and the freedom to focus on meaningful work.

If you are someone who naturally helps others, takes ownership without being asked, and quietly raises the bar, you will fit in well here.

What You’ll Be Doing
• Keeping an AWS based platform running reliably and stepping in quickly when things need fixing
• Building monitoring and alerting so issues are caught early, not by customers
• Running blameless post mortems and turning incidents into measurable improvements
• Automating repetitive tasks and refining the deployment pipeline
• Planning for growth through capacity management and performance optimisation
• Managing the relationship with AWS support and handling technical support cases

This is a hands on role where your judgement will be trusted and your input valued.

What They’re Looking For
• Around 3 to 5 years in SRE, DevOps, or production infrastructure roles
• Strong AWS experience across services such as EC2, IAM, EKS, RDS, and networking
• Infrastructure as Code experience, ideally Terraform
• Familiarity with SLOs, error budgets, and structured post mortems
• Confidence responding to incidents and troubleshooting live environments

Tech You’ll Likely Work With
• Linux administration
• Monitoring tools such as Prometheus, Grafana, CloudWatch, CheckMK, or similar
• Performance and load testing frameworks
• Python or Go for scripting
• CI/CD pipelines and GitOps practices
• Capacity planning and performance tuning

Most importantly, they value engineers who stay calm under pressure and focus on solutions.

Why This Role Stands Out
• Newly secured funding means real momentum and investment in engineering
• A stable business with a strong track record, now entering an exciting growth phase
• High trust environment with minimal bureaucracy
• Friendly, supportive team that respects deep work
• Plenty of opportunity to influence how things are built moving forward

This role is ideal for a skilled engineer who enjoys autonomy, takes ownership naturally, and wants to work somewhere that appreciates people who simply get on with the job and do it well.

Interested?
Please apply for the position or send you CV to (url removed)

eFX Technology Director - C++, FX, eFX, Low-latency, Trading, Front Office, Linux, Unix, Multithreading, Agile, DevOps, Cloud, Databases, Databricks, Kafka

I am working with a leading Investment Banks which is looking for a eFX Technology Director to join their Information Systems Department who provide a complete range of state-of-the-art technology services and infrastructure to the global entities across the bank. In this role, you will be working to develop and maintain an automated trading application. You’ll work closely with the Traders and Sales to build a low latency, high-performance eFX electronic trading system including Real Time Pricing, Risk, Price Distribution, Algo execution, and various electronic trading workflows.

• Embracing a hands-on approach and showcasing creativity in problem-solving and product development.
• Engaging in the development and support of Front Office Systems.
• Participating in the evaluation and endorsement of new technologies to enhance the Front Office Development team’s value.
• Extracting, comprehending, and analysing functional requirements directly from the Front Office FX desk.
• Ensuring delivery aligns with agreed-upon requirements through an agile process, following ISD standards for Documentation, System Testing, User Acceptance testing, and Change Control.
• Maintaining open communication with technical architects within ISD to leverage reusable software for efficient time-to-market.
• Providing production support for implemented solutions, and handling incidents, problems, and defects. Cross-training other ISD members for solution support may require shifts or on-call duties beyond regular working hours.
• Designing, implementing, and delivering complex globally distributed high availability Real Time trading systems.

Key Skills:

• OO Language - C++/Java/Python/Rust/C#
• FX Financial Markets
• Low-Latency
• Market Data
• Multi-Threading
• No-SQL/SQL
• Unit Testing/TDD/Automated Testing
• Strong Database Knowledge
• Kafka

This is a Full time position, offering a highly competitive salary, a strong benefits package, and a performance-related bonus. You will be required to travel to the office 3 days per week.

If you think your skills and experience are a good fit for this position, I’d love to speak with you.

eFX Technology Director - C++, FX, eFX, Low-latency, Trading, Front Office, Linux, Unix, Multithreading, Agile, DevOps, Cloud, Databases, Databricks, Kafka

Contract Embedded Software Engineer London | Outside IR35 | £550 per day | Hybrid This contract sits within a highly capable engineering SME working on advanced, safety-critical embedded systems. The work is discreet by nature and requires engineers who are comfortable operating in environments where technical depth, pace and trust matter. You’ll be joining a small, experienced team delivering embedded software that interacts directly with real hardware. The focus is on robust, production-quality code, not prototypes that never leave the lab. What you’ll be doing Developing embedded software in C/C++ Working close to hardware, supporting bring-up and integration Debugging and fault-finding at system level Collaborating directly with experienced engineers across disciplines Contributing to systems where reliability and performance are non-negotiable What you’ll bring Strong background in embedded software engineering Comfortable working across the full development lifecycle Experience with Linux or RTOS environments Confident debugging complex hardware/software interactions Eligible for Security Clearance (or already hold it) Contract details £550 per day, outside IR35 London-based, hybrid working Initial contract with extension potential Apply for a confidential conversation

Location: London, UK(2 days in a week from office, Hybrid)

Job type: 6 months contract with possible extension

Active SC Clearance is required.(Mandatory)

We are seeking a high-calibre Azure Architect to lead complex infrastructure transformations. In this role, you won’t just design solutions; you will govern the technical strategy, mentor a dedicated team of engineers, and bridge the gap between deep technical Linux administration and high-level Azure cloud architecture.

Key Responsibilities

• Cloud Strategy & Assessment: Lead end-to-end On-prem/Public Cloud assessments using Azure Migrate. You will be responsible for understanding customer landscapes and designing robust Azure Landing Zones.
• Architectural Leadership: Develop High-Level (HLD) and Low-Level Design (LLD) documents, including comprehensive target architecture diagrams and Bill of Materials (BoM).
• Migration Execution: Drive large-scale migrations of Linux-based workloads to Azure, ensuring solutions align with TCO (Total Cost of Ownership) and ROI goals.
• Linux Mastery: Act as the Subject Matter Expert for Linux environments, managing Kernel tuning, logical volumes, Shell Scripting, and advanced networking (bonding, bridging, and DNS).
• Security & Governance: Oversee Azure IAM, Key Vault, and general security protocols within a UNIX environment to ensure compliant and hardened architectures.
• Performance Optimization: Implement and tune high-performance web stacks using Apache, Varnish for caching, and HAProxy for load balancing.
• Team Leadership: Manage and technically govern a team of 5+ infrastructure engineers, providing guidance on root-cause analysis and complex troubleshooting.

Required Skills & Experience

• Experience: 12+ years in IT, with at least 5+ years specifically focused on Azure Infrastructure (IaaS/PaaS, Networking, Storage).
• Migration Expertise: Proven track record using Azure Migrate and driving complex solutioning for banking, healthcare, or insurance domains.
• Linux Expertise: Advanced knowledge of Linux systems (OS restoration, daemon management, Postfix/SendMail, and file-based storage like NFS/SMB).
• Network/Security: Deep understanding of Azure Networking, SIAM, and data security.
• Troubleshooting: Expert-level ability to perform root-cause analysis on processor, memory, IO, and cluster-related issues.

Desirable Skills

• Automation: Familiarity with Configuration Management tools like Ansible or Chef.
• DevOps: Experience with Git, Jenkins, and Scripting in Python, Bash, or Ruby.
• Modern Web: Hands-on experience with TLS termination and web traffic optimization.

Randstad Technologies is acting as an Employment Business in relation to this vacancy.

+6 months +

+Hybrid in London

+eDV clearance

+Inside IR35

• 650 - 700 a day

We are seeking an experienced eDV Cleared Technical Architect to design and assure secure, mission-critical infrastructure within a high-security government environment.

The Role

You will lead the production of High-Level and Low-Level Designs (HLDs/LLDs) for secure, multi-tenant platforms, ensuring alignment to Secure by Design principles and frameworks including the National Cyber Security Centre (NCSC) CAF and National Institute of Standards and Technology (NIST 800-53). You’ll present at TDA, act as the infrastructure SME, and ensure all solutions are hardened to CIS/STIG standards.

Key Experience

• Modern data centre networking (Clos-fabric, BGP, ECMP, DCI, EVPN/VXLAN)
• Palo Alto firewalls and secure cross-domain architectures
• VMware private cloud, including VMware Cloud Foundation (VCF), VxRail/vSAN and NSX-T
• Secure multi-tier environments (DMZs, segmentation, high-grade crypto)
• Linux & Windows Server administration (AD, PKI, SQL)
• Docker, CI/CD, Infrastructure as Code (Terraform/Ansible)

Desirable

Kubernetes, Vault, Splunk, Panorama, Avi, SRM, Dell Powerscale, NVIDIA GPU, VDI (Omnissa Horizon).

This is a high-impact role shaping secure cloud and infrastructure architecture at scale.

If you hold active eDV clearance and thrive in complex, secure environments, we’d like to hear from you.

Belcan are hiring on a Permanent basis for a Cyber SME specialising in OT - Operational Technology.

Hybrid working from either Cheltenham or our South West London office with client visits as required.

The OT Cyber Security team is a function within the business that services our framework partners, OT delivery, and is a key growth area for the business.

Role & Duties

Lead and manage multiple workstreams within the team to ensure successful delivery.

Oversee OT Cyber technical delivery, both directly and through delegated tasks.

Take full accountability for team deliverables, including quality assurance, approval, and sign-off.

Provide line management, technical mentoring, and guidance to the current team of three, with planned expansion in 2026.

Act as a client-facing Subject Matter Expert (SME) for existing and prospective clients.

Collaborate with internal stakeholders, including sales teams, client partners, and global technical delivery teams (Belcan and Cognizant).

Support business development by contributing technical solutions and proposal content.

Assist in developing and maintaining internal OT Cyber procedures and processes.

Experience and Qualifications

Roles involving management, design, implementation, maintenance, or support of security solutions within IoT and OT/ICS domains.

Strong background in Software Engineering, Systems Engineering, or a related discipline.

Proven understanding and hands-on experience with OT/ICS security standards and frameworks, such as ISA/IEC 62443, NCSC CAF Framework, NIST CSF, or similar.

Knowledge of technical security solutions used in IoT and OT/ICS systems and networks.

Familiarity with key security concepts in ICS/OT environments, including network segmentation and defense-in-depth strategies.

Experience in developing components of Cybersecurity Management System (CSMS) procedures and policies.

Technical proficiency in:

Linux and Linux-based systems.
IP networking and principles of network deployment.

Baseline knowledge across the eight security domains defined by ISC, with demonstrable expertise in at least three and a desire to expand further.

Ability to produce professional documentation, including diagrams, reports, analyses, and methodologies, in English.

Understanding of security-related operational processes within IoT and OT/ICS environments.

Awareness of technologies, assets, communication protocols, and architectures commonly used in IoT and OT/ICS systems.

Familiarity with functional safety concepts (e.g., Safety Instrumented Systems - SIS).

To qualify for the role you must have:

Completed technical higher education in the field of industrial automation, computer science, electronics or other relevant field

Certificates or education related to industrial automation / engineering etc.

Certificates of security, preferably in ICS or IoT domain (CSSA, ISA 62443, GICSP-GIAC, SABSA, CISSP, CISM)

Extensive experience within Control Systems and Operational Technology (preferred)

Good experience within OT Cyber

Ideally, you’ll also have:

Key sector experience in: Oil & Gas, Utilities or Energy industry, or other Critical National Infrastructure or Operators of Essential Services.

About Us

Belcan Advanced Solutions (BAS) is a specialist technical services provider and engineering consultancy with core services encompassing multi-disciplinary design engineering, multi-vendor systems delivery, operational technology (OT) cyber security, and COMAH and technical safety compliance.

Founded in 1958, Belcan has become a global technological leader and established go to Engineering Services provider, working within many industries including Aerospace, Defence, Marine, Nuclear, Automotive and Cyber Security with over 10,000 professionals serving hundreds of customers in over 60 locations worldwide.

Belcan was acquired by Cognizant Technology Solutions in 2024.

This vacancy is being advertised by Belcan

Our client is a long established and highly prestigious Quantitative Trading Firm focusing on systematic low latency trading strategies. This role has arisen because of the promotion of the current Junior Desktop Engineer who is now progressing into a more specialised infrastructure engineering role within the company.

The firm is looking for an ambitious and enthusiastic professional who is looking to continuously learn and progress in their career & follow the same progression path as the previous Junior Desktop Engineer

You don t need years of experience, but you do need solid practical IT skills, a good attitude, and a willingness to learn and grow in an infrastructure-focused career. You will benefit from the support and mentorship of their world class team of senior engineers.

THE ROLE :Junior Desktop Engineer - Hedge Fund

You will be working closely with the Senior Engineers on their IT Infrastructure team in a bleeding edge High Performance Computing environment. Initially, your focus will be on resolving 1st/2nd line support tickets and assisting with projects on an ad-hoc basis. It s ideal for someone who s hands-on with computers and enjoys fixing problems from setting up PCs and workstations to troubleshooting Windows/Linux issues and dealing with both physical hardware and cloud based faults.

• Responsible for providing day-to-day IT support to internal users. Your objective will be solve as many issues as possible without having to escalate them
• Troubleshooting Windows and Linux issues
• Continue to deepen your technical knowledge by assisting Senior Engineers with Project based work
• Assisting Senior Engineers with Infrastructure Administration based tasks
• Supporting general infrastructure tasks as needed
• Setting up PCs, desks, monitors, and peripherals (If and when required)
• Moving workstations and patching network connections (If and when required)

SKILLS / EXPERIENCE REQUIRED: Junior Desktop Engineer - Hedge Fund

• Minimal Experience is required- our Client is looking for someone they can mentor and develop, they are looking for someone who has a genuine interest and desire to learn and progress.
• Understanding of Windows, Linux, and networking fundamentals
• Hands-on PC skills (setup, troubleshooting, hardware basics)
• Strong communication skills (Both written and verbal)
• A customer-service mindset and friendly approach
• A fast learner who is looking to improve their skillset and grow their career
• Whilst a university degree is desirable it is not essential

If you enjoy understanding how systems fail and using that knowledge to make organisations more secure, this role will interest you.

Our client is an established cyber security consultancy, trusted to deliver high-quality offensive security testing to a wide range of organisations. They are expanding their Offensive Security Testing team and are looking for a CTM-qualified Penetration Tester who wants to work on meaningful, real-world engagements.

Role: Penetration Tester (CTM Required) Offensive Security
Salary: Up to £60,000
Location: London Hybrid

What you ll be doing

• Delivering penetration tests and vulnerability assessments across networks, infrastructure, and applications
• Supporting and leading testing engagements alongside experienced senior testers
• Producing clear, well-structured reports with practical remediation advice
• Using and developing skills with tools such as Metasploit and Burp Suite
• Keeping up to date with emerging tools, techniques, and attack methods
• Collaborating with consultancy and SOC teams, with opportunities to progress into threat hunting

What you must have

• CHECK Team Member (CTM) status is essential
• At least 6 months of hands-on penetration testing experience
• Strong written and verbal communication skills
• Experience working with networks and Windows, Linux, and macOS environments
• Eligibility for UK Security Clearance
• A proactive mindset and strong team ethic

Desirable experience

• Web and mobile application testing
• Cloud technologies including M365, Azure, and Sentinel
• IoT and SCADA environments
• SOC or security operations exposure
• OSCP, CRT, Cyber Scheme, or Cyber Essentials Plus Lead Assessor

The role

• Occasional out-of-hours work based on client requirements
• Periodic travel to client sites and support for SOC activities

If you are CTM-qualified and want to develop your career within a cyber security consultancy that values high-quality offensive security, this role offers genuine challenge and progression.

Adword

Job title: Java Developer with SQL & GIT

Duration: Permanent

Location: London - Hybrid (3 days a week from office)

Job description:

We are seeking talented Senior Hands on Java Developers to join our core Fixed Income team in lead and support roles To help design develop and implement our applications to support front office and operations groups Work crossfunctionally with various stakeholders trading teams and technology departments to ensure our applications are running at optimal performance You will take a handson approach to understanding business workflows and the products we work with You will help reengineer and modernize our platform and drive our migration to a scalable microservice cloudbased architecture

Qualifications

• Bachelors or higher degree in computer science engineering or a related discipline or equivalent work experience required
• 10 years of experience in software development required
• 5 years of experience working with Fixed Income Products and Associated Electronic Workflows
• Strong proficiency with Java SQL and Git
• Very good understanding of industry standard trading protocols like FIX FpML
• Proficiency with Data Standards Data Modelling
• Proficiency with textbased formats like XML JSON
• Strong Proficiency with messaging frameworks MQ Kafka
• Proficiency with Spring Spring Boot Spring Integration
• Familiarity with testing patterns and dev ops
• Familiarity with cloud containerization
• Comfortable in Windows and Linux environments

If you’re excited about application security, identity management, and creating robust, secure solutions for modern architectures, we want to hear from you!

Please apply with a copy of your CV or send it to Prasanna com and let’s start the conversation!

Randstad Technologies Ltd is a leading specialist recruitment business for the IT & Engineering industries. Please note that due to a high level of applications, we can only respond to applicants whose skills & qualifications are suitable for this position. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. For the purposes of the Conduct Regulations 2003, when advertising permanent vacancies we are acting as an Employment Agency, and when advertising temporary/contract vacancies we are acting as an Employment Business.

Linux Support Engineer required by a market leading technology company based in Staines. Due to continued success and planned expansion the company are looking to hire an ambitious Linux Support Engineer to join their existing team.

The successful Linux Support Engineer should have experience working with Linux-based systems and be a keen problem solver with excellent communication skills. You will be working with the operations team in the roll-out and maintenance of their core SaaS product.

Responsibilities will include;

• Working with solution architects to implement roll-out of software
• Troubleshooting issues using Linux tools and scripting
• Hardware/Software migration
• Customer installation and support

Essential Experience;

• Customer facing experience
• Linux i.e. CentOS/RHEL
• Scripting languages i.e. Shell, PERL, Python, PHP
• Knowledge of IP, HTTP and DNS
• Enthusiasm to problem solve and investigate new technologies

If you are looking for an opportunity of this nature, please get in touch for more information.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Senior Systems Engineer - £65k - £75k South London

Hexwired Recruitment has partnered with an expanding Electronics manufacturer based in South London, who are now seeking a Senior Systems Engineer to develop a range of multi year projects for safety critical applications.

The company are working with customers globally to develop novel solutions to a range of applications, utilising the latest technology available! You will be working as part of a multi-disciplinary team, developing a range of products used across a number of industries so this is an excellent opportunity for someone looking for a more varied role.

This is a Senior Systems Engineering role, focusing heavily on safety critical development as well as the Systems Engineering Life Cycle. The company offer a hybrid model

Key Skills

• Degree in Maths, Physics or an engineering focused degree
• A background in engineering (Software, Electronics etc)
• Excellent written communication skills for documentation and technical reviews
• Excellent experience designing systems for regulated products (Aerospace, Medical etc.)
• Knowledge of safety critical standards such as DO-178, IEC 60601 etc.

The company are offering between £65k - £75k dependent on experience along with an excellent benefits package. If you re interested in this Senior Systems Engineer role, please apply.

For more information on this role, or any other jobs across; Embedded, C++ programming, Embedded Linux, Javascript, Python, Electronics, FPGA, Golang Development, Machine Learning, Data Science or Simulation contact us today.

IT Field Engineer/ IT Onsite Technical Engineer

Salary: £26,799.90-£32,000.00 per year & Benefits

Field based role- covering multiple areas across Surrey and Croydon/ South London

Full Clean Drivers License is required

English Speaking

We are seeking a dedicated and technically proficient Field Engineer to join a leading Education IT MSP (Managed Service Provider) This role involves providing comprehensive IT support and technical assistance across various client sites within the Education Sector, ensuring smooth operation of network and hardware systems. The successful candidate will possess strong communication skills (English language as a first language), a solid understanding of computer networking, Security, IT Hardware, MS and Cloud Systems, and experience with a range of operating systems and support tools. This position offers an excellent opportunity to develop your career within a dynamic and innovative organisation.

Job Description: Onsite IT Technical Engineer/ IT Field Engineer

• Install, configure, and maintain computer hardware, operating systems (Windows, macOS, Linux), and network infrastructure.
• Provide technical support to end-users via help desk platforms such as ServiceNow, Jira, or BMC Remedy.
• Troubleshoot software issues including Microsoft Windows Server, Active Directory, DNS, VPNs, firewalls, TCP/IP protocols, and LAN/WAN connectivity.
• Assist with desktop support tasks such as installing software (Microsoft Office), managing user accounts in Active Directory, and resolving hardware faults.
• Conduct analysis of system performance and identify potential improvements or security vulnerabilities.
• Support remote users through VPN connections and ensure secure access to corporate resources.
• Document technical procedures and support activities accurately for future reference.
• Collaborate with internal teams to resolve complex technical issues efficiently and professionally.
• Maintain up-to-date knowledge of emerging technologies relevant to the organisation s infrastructure.

About you: Onsite IT Technical Engineer/ IT Field Engineer

We are looking for an experienced Onsite IT Technical Engineer/ IT Field Engineer who has experience working in Schools, Colleges and Universities. You’ll be used to dealing with customers face to face, problem solving and reassuring customers. Knowledge of educational IT equipment is a huge advantage.

• Proven experience with computer networking, LAN, TCP/IP, DNS, VPN, firewall configuration, and troubleshooting.
• Strong understanding of operating systems including Windows, macOS, and Linux environments.
• Proficiency in managing Microsoft Windows Server, Active Directory, SCCM, and related enterprise tools.
• Familiarity with hardware components and troubleshooting physical device issues.
• Experience using ticketing systems such as ServiceNow, Jira, or BMC Remedy for incident management.
• Excellent communication skills with the ability to explain technical concepts clearly to non-technical users.
• Ability to perform detailed analysis using tools like Analysis skills to diagnose complex problems effectively.
• Knowledge of software deployment tools like SCCM and scripting basics is advantageous.
• Strong organisational skills with the ability to prioritise multiple tasks efficiently. This role is ideal for candidates passionate about IT support who thrive in fast-paced environments requiring both technical expertise and excellent customer service skills. The position offers opportunities for professional growth within a supportive organisation committed to technological excellence.
• A full and Clean Drivers License is also required