Role Title: Splunk and Openshift Observability Engineer
Location: Sheffield/Birmingham/London/ Hybrid - 2/3 days per week onsite
Duration: 8 months
Rate: £494 per day inside ir35
We’re looking for a Splunk & OpenShift Observability Engineer to design, deploy, and optimise enterprise-grade monitoring across hybrid Kubernetes and OpenShift environments.
This is a high-impact role where you’ll shape observability strategy, enhance service intelligence, and ensure platform reliability at scale - balancing performance, cost efficiency, and security governance.
You’ll work at the intersection of platform engineering, observability, and service intelligence, helping to transform raw telemetry into actionable insight. This is an opportunity to influence reliability strategy, improve operational maturity, and deliver measurable value across a modern cloud-native estate.
What You’ll Be Doing
Design, deploy, and operate Splunk Enterprise and ITSI across hybrid Kubernetes/OpenShift platforms
Onboard and normalise data at scale (HEC, Universal Forwarder, Deployment Server), aligning to CIM standards
Build and optimise ITSI service models: service trees, KPIs, adaptive thresholds, NEAP policies, glass tables, deep dives, and health scoring
Deliver OpenShift-focused executive and operational dashboards, including:
Cluster/API/etcd health
Node readiness and resource pressure
Pod restart trends and noisy-neighbour detection
Network and storage error visibility
Capacity, quota, and burst analysis
Optimise search and platform performance (workload rules, DMA, summary indexing, scheduling hygiene, concurrency tuning)
Implement intelligent alerting and automated routing into ITSM and ChatOps platforms, including enrichment, suppression windows, and maintenance scheduling
Govern data ingestion and security controls (RBAC, retention, PII handling, TLS, token governance, index and role mapping)
Integrate telemetry pipelines including OpenTelemetry, Prometheus, Fluentd/Fluent Bit/Vector, Kafka, CMDB and AIOps/ML solutions
Drive SLO/KPI alignment, golden signal monitoring, rollout/rollback health validation, and executive reporting
What You’ll Bring
Deep expertise in Splunk Enterprise (SPL mastery, CIM alignment, saved searches, macros, KV stores, index/retention/RBAC design, performance tuning)
Strong experience with Splunk ITSI (service trees, KPIs, adaptive/time-based thresholds, NEAP tuning, Service Analyzer configuration)
Proven OpenShift/Kubernetes observability experience across control-plane metrics, events, logs, workload correlation, and capacity management
Hands-on experience with telemetry pipelines (OpenTelemetry/OTLP, Prometheus exporters, Fluentd/Fluent Bit/Vector, Kafka with TLS, HEC/UF/DS onboarding)
Strong understanding of reliability engineering principles (golden signals, SLO design, namespace/application KPI mapping)
Experience optimising performance and licensing costs using workload rules, DMA, and summary indexing
Solid security and compliance knowledge (TLS/mTLS, certificate/token hygiene, PII controls, auditability, role/index mapping)
Automation and integration expertise across ITSM, ChatOps, webhooks, CMDB enrichment, and AIOps tooling
Data Engineer Salary: £40 - 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: SC Clearance required 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 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. TPBN1\_UKTJ
Software Engineer - Active SC, Java, Microservices Up to £550 per day (Inside IR35) London / Remote 6 months My client is an instantly recognisable consultancy who require a strong Software Engineer with Active Security Clearance (SC) and with deep expertise in Java (Spring Boot) to join a large-scale, business-critical microservices programme. Key Requirements: Proven experience working as a Java Software Engineer on large microservice architectures Active Security Clearance (SC) Strong capability building scalable RESTful APIs and backend services in Java (Spring Boot): Postgres (or other relational SQL databases) with solid understanding of schema design and SQL Docker: Confident containerising and deploying applications Test-Driven Development (JUnit & Mockito or similar testing frameworks) CI/CD: Hands-on experience with Jenkins or similar automated pipeline tooling Flexibility working in agile teams and collaborating closely with engineers, product, and design colleagues Nice to have: API Specification using Swagger / OpenAPI Gradle build systems Liquibase (or similar) for database versioning/migrations Kafka or similar event-streaming platforms React and Typescript If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk TPBN1\_UKTJ
Up to £550 per day - Inside IR35
London / Remote
6 months
My client is an instantly recognisable consultancy who require Front End Developers with Active SC Clearance to join a business-critical programme for an end client within the Public Sector.
Key Requirements:
Proven commercial experience working as a Front-End Developer within the Public Sector.
Active SC Clearance.
NPPV3 Clearance eligibility.
Hands‑on React and TypeScript experience across large microservice architectures.
Proficiency in test‑driven development (e.g., JUnit, Mockito) and building robust, well‑tested applications.
Skilled in containerisation with Docker and relational databases such as Postgres (Liquibase exposure beneficial).
Experienced with CI/CD pipelines and modern DevOps practices (e.g., Jenkins or similar tooling).
Familiarity with Swagger/OpenAPI, Gradle, Liquibase, Kafka, Java (Spring Boot).
Comfortable working in Agile environments and collaborating across multidisciplinary teams.
Excellent communication skills.
Nice to have:
Active NPPV3 Clearance.
Immediate availability.Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C’s, Privacy Policy and Disclaimers which can be found at (url removed)
Solutions Architect – Customer & Marketing Data
Location: Central London (Hybrid - 2 days per week onsite)
Day rate: TBC - likely in the region of £550 - £600 inside IR35
Contract: Full-time, 6 months initially starting ASAP
Our client is seeking a Solutions Architect to design modern, scalable data solutions that power personalised customer experiences, advanced marketing capabilities, and data‑driven decisioning across the organisation. You’ll work across customer, campaign, and marketing domains, shaping how data flows, integrates, and delivers value.
What you’ll do
* Design end‑to‑end solutions across customer, marketing, and decisioning systems.
* Evaluate and replace third‑party platforms with modern, internal solutions.
* Create integration patterns covering APIs, schemas, tables, and file structures.
* Work closely with domain and data architects to ensure aligned, robust designs.
* Recommend and design cloud infrastructure—primarily AWS and Snowflake, with some Azure.
* Partner with engineers and data scientists to operationalise models and deliver production‑ready solutions.
* Lead architecture discussions with stakeholders across product, marketing, engineering, and analytics.
* Produce clear solution designs and documentation for delivery teams.
What you’ll bring
* Strong experience with customer and marketing data platforms in the retail domain.
* Knowledge of SCV, MDM, CRM, CDP, and data governance principles.
* Understanding of GDPR and best‑practice handling of customer data.
* Experience with API design, real‑time paradigms, and integration patterns.
* Hands‑on exposure to Snowflake, cloud data platforms, and event streaming (Kafka beneficial).
* Familiarity with AWS (Azure a bonus).
* Excellent communication and stakeholder management skills.
* Ability to evaluate emerging tools and adapt quickly.
* Hands-on experience with data modelling.
Nice to have
* Knowledge of Airflow, Azure Data Factory, or similar orchestration tools.
* Understanding of model performance monitoring and observability best practice.
Interested in shaping next‑generation customer data solutions?
We’d love to hear from you. Please apply ASAP to be considered
Location: London
Day Rate: £595 per day (Umbrella, inside IR35, based on an 8-hour day)
Clearance: Live & transferrable SC required, ideally Home Office SC
Start Date: Subject to SC transfer
We’re looking for a full-stack Java Software Engineer to join a fast-growing team delivering high-impact solutions for UK Government and Law Enforcement sectors. You’ll work in agile, multi-disciplinary teams solving complex problems with cutting-edge technologies, while contributing to software solutions you can be proud of.
What You’ll Do
Design, develop, and deliver high-quality software solutions in Java, React, PostGres, Kafka, ElasticSearch, AWS, Ansible, REST, Docker, API Gateways, JavaScript, Mongo, and SQL.
Work hands-on across the full stack while ensuring delivery pipelines, NFRs, and industry best practices are met.
Collaborate with enterprise teams in an agile environment, shaping technical solutions and mentoring peers.
What We’re Looking For
Proven experience as a full-stack Java developer , with hands-on knowledge of modern frameworks, databases, APIs, and cloud services.
Strong understanding of agile delivery practices and enterprise software development pipelines.
A proactive, collaborative mindset and a passion for delivering innovative, high-quality software.
Live & transferrable SC clearance essential (Home Office SC preferred).
If you’re an SC Cleared Software Developer looking for your next contract within a secure, cutting-edge programme, I’d be keen to speak with you.
Apply now or message me directly for a confidential discussion.
TPBN1_UKTJ
Senior Full Stack Architect
Permanent | UK-Wide | Hybrid (2–3 Days in Office) | £60,000+
The Opportunity
A leading technology organisation is seeking a Senior Full Stack Architect to own end-to-end technical architecture across a multi-year digital transformation programme. This is a hands-on leadership role where you will define architecture standards, drive engineering excellence and align technology decisions with business goals. You will lead architectural reviews, mentor engineering teams and play a central role in shaping a scalable, secure and cloud-native platform.
What You’ll Be Doing
* Own end-to-end architecture across frontend, backend, APIs, data layers and integrations
* Define reference architectures, technology standards and design principles
* Lead architectural reviews and contribute to technology governance frameworks
* Design cloud-native solutions using Docker, Kubernetes and CI/CD pipelines
* Champion engineering best practices — GitOps, automated testing and observability
* Coach engineering teams and identify anti-patterns across the stack
* Manage senior stakeholder relationships and communicate architectural decisions clearly
Skills & Experience
* Proven background in senior architecture or technical leadership
* Frontend: React, TypeScript, Material UI, modern JavaScript (ES6+)
* Backend: Node.js, Python, RESTful APIs, GraphQL, Kafka or RabbitMQ
* Cloud: AWS, Azure or GCP — Kubernetes, Docker, Terraform / CloudFormation
* Databases: PostgreSQL, MongoDB, Redis — strong data modelling and caching strategies
* Secure architecture: OAuth, JWT, SAML; monitoring via Datadog, Prometheus or Grafana
* Strong Agile delivery experience (SCRUM / Kanban) in complex or regulated environments
* Excellent communication and stakeholder management skills
Nice to Have
* Cloud architecture certification — AWS Solutions Architect or Azure equivalent
* Experience in financial services or other regulated industries
* Familiarity with service mesh architectures such as Istio
Right to Work
Candidates must have the right to work in the UK under one of the following:
* British Citizen
* Indefinite Leave to Remain (ILR)
* EU Settled Status
* Dependent of ILR / British Citizen, or of someone due ILR within 6–8 months
We are unable to consider candidates requiring Tier 2 sponsorship, PSW visa holders, dependents of work permit holders, or former permanent employees of the end client
Data Engineer
Salary: £40 - 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: SC Clearance required
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
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 Title: Confluent Engineer
Location: London
Duration: 27/05/2026
Days on site: 2-3
Rate INSIDE IR35 £402.75 PER DAY
MUST BE THROUGH UMBRELLA
Role Description:
* Role Title: Senior Software Engineer - Confluent Streaming Platform
Role Purpose
* We are seeking a Senior Software Engineer with strong hands-on experience in Confluent Platform, Apache Kafka, and Apache Flink to support the introduction and evolution of Intact’s enterprise streaming capabilities. This role sits within the Integration function, responsible for enabling Real Time data, event-driven architecture, and high-performance integrations across the organisation.
* The ideal candidate will contribute to the design, development, and scaling of Intact’s Confluent-based streaming platform, supporting teams across the organisation in adopting event-driven approaches.
* This opportunity sits within a significant cloud-modernisation programme, leveraging Agile and DevOps practices to continuously deliver business value.
Key Accountabilities
* Deliver engineering tasks across the Confluent Streaming Platform, including the design, development, testing, and deployment of event-driven services and data pipelines.
* Develop Kafka topics, schemas, and streaming applications using Kafka, Kafka Connect, Schema Registry, and Flink.
* Collaborate with architects and platform teams to shape the event streaming roadmap.
* Provide subject-matter expertise in distributed streaming and event-driven architecture.
* Review streaming applications produced by other engineers, ensuring quality and best practices.
* Troubleshoot production streaming issues and conduct root-cause analysis.
* Promote platform standards, governance models, and reusable patterns.
* Collaborate with vendor teams and Confluent professional services.
* Actively participate in Agile ceremonies and technical discussions.
Customer Conduct Framework
* Understand how FCA Conduct Rules apply to this role and consistently demonstrate behaviours that support positive customer outcomes and safe data handling.
Functional/Technical Skills
* 6+ years of software engineering experience, including 3+ years hands-on with Confluent/Apache Kafka.
* Experience designing and building distributed streaming applications using Confluent Platform components.
* Strong understanding of event-driven architecture concepts (event streaming, event sourcing, Pub/Sub, stream processing).
* Experience with Avro/JSON/Protobuf, schema evolution, and Schema Registry.
* Integration experience with Back End systems such as SQL/NoSQL databases, APIs, and cloud data platforms.
* Familiarity with API design, data modelling, and microservice integration patterns.
* Proficient with Git, Jira, Azure DevOps, Docker, Kubernetes.
* Working knowledge of AWS and/or Azure.
* Strong understanding of clean code, reusable component design, and Agile/DevOps practices.
Decision-Making Authority
* Makes decisions on design and implementation of streaming components within agreed architecture and standards.
* Provides expert guidance impacting platform reliability, performance, and integration quality.
* Escalates risks, issues, and architectural concerns appropriately.
Please send latest CV
LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds.
Award Winning LA International, winner of the Recruiter Awards for Excellence, Best IT Recruitment Company, Best Public Sector Recruitment Company and overall Gold Award winner, has now secured the most prestigious business award that any business can receive, The Queens Award for Enterprise: International Trade, for the second consecutive period.
We are a Global Recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you.
Role Title: Confluent Engineer
Location: London
Duration: 27/05/2026
Days on site: 2-3
Rate: £402/Day -Inside IR35
MUST BE PAYE THROUGH UMBRELLA
Role Description:
Role Title: Senior Software Engineer - Confluent Streaming Platform
Role Purpose
We are seeking a Senior Software Engineer with strong hands-on experience in Confluent Platform, Apache Kafka, and Apache Flink to support the introduction and evolution of Intact’s enterprise streaming capabilities. This role sits within the Integration function, responsible for enabling Real Time data, event-driven architecture, and high-performance integrations across the organisation.
The ideal candidate will contribute to the design, development, and scaling of Intact’s Confluent-based streaming platform, supporting teams across the organisation in adopting event-driven approaches.
This opportunity sits within a significant cloud-modernisation programme, leveraging Agile and DevOps practices to continuously deliver business value.
Key Accountabilities
Deliver engineering tasks across the Confluent Streaming Platform, including the design, development, testing, and deployment of event-driven services and data pipelines.
Develop Kafka topics, schemas, and streaming applications using Kafka, Kafka Connect, Schema Registry, and Flink.
Collaborate with architects and platform teams to shape the event streaming roadmap.
Provide subject-matter expertise in distributed streaming and event-driven architecture.
Review streaming applications produced by other engineers, ensuring quality and best practices.
Troubleshoot production streaming issues and conduct root-cause analysis.
Promote platform standards, governance models, and reusable patterns.
Collaborate with vendor teams and Confluent professional services.
Actively participate in Agile ceremonies and technical discussions.
Customer Conduct Framework
Understand how FCA Conduct Rules apply to this role and consistently demonstrate behaviours that support positive customer outcomes and safe data handling.
Functional/Technical Skills
6+ years of software engineering experience, including 3+ years hands-on with Confluent/Apache Kafka.
Experience designing and building distributed streaming applications using Confluent Platform components.
Strong understanding of event-driven architecture concepts (event streaming, event sourcing, Pub/Sub, stream processing).
Experience with Avro/JSON/Protobuf, schema evolution, and Schema Registry.
Integration experience with Back End systems such as SQL/NoSQL databases, APIs, and cloud data platforms.
Familiarity with API design, data modelling, and microservice integration patterns.
Proficient with Git, Jira, Azure DevOps, Docker, Kubernetes.
Working knowledge of AWS and/or Azure.
Strong understanding of clean code, reusable component design, and Agile/DevOps practices.
Decision-Making Authority
Makes decisions on design and implementation of streaming components within agreed architecture and standards.
Provides expert guidance impacting platform reliability, performance, and integration quality.
Escalates risks, issues, and architectural concerns appropriately.
If you are interested in this position and would like to learn more, please send through your CV and we will get in touch with you as soon as possible. Please note, candidates are often Shortlisted within 48 hours.
Founded in 2001, Resident Advisor (RA) is one of the world’s longest-running music media brands and a cornerstone of the dance, electronic and DJ ecosystem. The site’s audience of over 7 million monthly users is drawn in by a combination of news, editorial, club listings and ticketing, RA-branded events at venues and festivals worldwide, original films and a weekly mix series that has run for 20 years.
Purpose of the role:
We’re looking for a Lead Platform Engineer passionate about electronic music to join our Core Platform team. You’ll lead a small, focused team helping scale our high-traffic infrastructure that handles massive spikes during on-sale events. Our tech stack includes Node.js/.NET microservices, PostgreSQL/MSSQL databases, ElasticSearch, Redis, and Kafka running on AWS EKS (Kubernetes), managed via Terraform with CI/CD pipelines and DataDog monitoring.
Your responsibilities include improving infrastructure performance and reliability, driving modernization and cost optimization, developing shared components (i.e. auth systems, GraphQL gateways), enhancing developer experience, maintaining E2E testing systems, and creating internal tooling. This is an opportunity to solve challenging scale problems while shaping the technical foundation that powers RA’s products for the electronic music community.
Key responsibilities
Required Skills:
Desired Skills:
What we offer you:
More about RA:
As an independent company run by devoted dance music enthusiasts, our mission is to bring together the world’s electronic music communities. Our Global Contributor Network (GCN) and international teams help us establish connections with hyper-niche local scenes.
We became B-Corp certified in 2024, which counts us among businesses leading a global movement for an inclusive, equitable, and regenerative economy and part of a community that meets high social and environmental impact standards.
We especially welcome applicants from diverse backgrounds, abilities, ethnicities, experiences, gender identities, and sexual orientations. We aim for our team to reflect the communities we engage with. We ensure everyone is valued and respected by actively promoting equality, diversity, and inclusion in our workplace.
Our values:
This role is a full-time position, based in London. Please note: This position requires applicants to be based in London and to work from the office three days per week. The annual salary range for this role is £75,000 £85,000.This listing will be open for a maximum of two weeks from the 6th March.
Java Developer - multiple roles
£510/day Inside IR-35
6 month contract
Active SC required
Remote with occasional travel to London for client meetings only - expensable
We are looking for experienced fullstack Java Software Engineers to support projects across UK Government and Law Enforcement. You’ll work in multidisciplinary teams delivering secure, reliable and scalable systems. The role is hands-on and focused on building high quality software using modern engineering practices.
What you’ll do
You’ll design, build and maintain Java based microservices, applying test driven development and following established engineering standards. You’ll work with technologies including Java, Spring Boot, Postgres, Kafka, Docker, React and AWS. You’ll contribute to CI/CD pipelines, ensure non-functional requirements are met and collaborate with colleagues across engineering, analysis and design.
Essential experience
Java and Spring Boot
Building and maintaining microservice based systems
Postgres or other relational SQL databases
Test-driven development (JUnit, Mockito or similar)
Docker and containerisation
CI/CD pipelines (Jenkins or similar)
Working in agile, multi-disciplinary teams
Desirable experience
Kafka
Liquibase or similar migration tooling
Swagger/OpenAPI
Gradle
React
TypeScript
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.
TPBN1_UKTJ
Data Engineer (AWS Python Kafka) London / WFH to £85k
Are you a tech savvy Data Engineer with AWS expertise combined with client facing skills?
You could be joining a global technology consultancy with a range of banking, financial services and insurance clients in a senior, hands-on Data Engineer role.
As a Data Engineer you will design and build end-to-end real-time data pipelines using AWS native tools, Kafka and modern data architectures, applying AWS Well-Architected Principles to ensure scalability, security and resilience. You’ll collaborate directly with clients to analyse requirements, define solutions and deliver production grade systems, leading the development of robust, well tested and fault tolerant data engineering solutions.
Location / WFH:
There’s a hybrid work from home model with two days a week in the London, City office (or at client site in London).
About you:
What’s in it for you:
As a Data Engineer you will earn a highly competitive package:
Apply now to find out more about this Data Engineer (AWS Python Kafka) opportunity.
At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We’re an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.
Principal Architect – Data Platforms / Data Lakes / Cloud / Python – 12 Month Contract – £700 p/d Inside IR35 – London
A global digital media organisation are looking for a Principal Architect to join their Data Foundation & Product Analytics team on an initial 12-month contract. This role sits at the forefront of enterprise data strategy, engineering, and platform governance — and will be instrumental in shaping the next generation of data infrastructure within the business. This is a hybrid role (London-based) with flexibility in a fast-paced, multi-cloud, multiplatform environment.
You will partner with the Enterprise Data Lake and Governance teams, architecting robust data pipelines and platforms across cloud and on-prem ecosystems, whilst establishing and enforcing standards for data modelling, ensuring consistency in data quality.
Key Responsibilities:
Architect and lead the development of large-scale, secure, and resilient data lakes and pipelines using Data Lakes and Data Mesh concepts.
Extensive experience using Python, SQL and AWS
Define and enforce data architecture across mesh and domain-driven data products.
Implement and govern real-time/batch processing (Kafka, Spark, Glue).
Ensure strong metadata, cataloguing, and lineage practices across the enterprise.
Lead teams of engineers across global hubs, mentoring and supporting high standards.
Knowledge on data governance & security practices such as IAM, RBAC, Collibra, OpenMetadata, GDPR compliance
TPBN1_UKTJ
Principle Java Engineer Salary to £70k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV) clearance i.e. you have at least 5 years residency in the UK with no more than a 3 month break outside the UK. This company is a Workflow & AI Orchestration Specialist. They're on a mission to modernise how public sector organisations manage casework, derive insight from data and deliver citizen services. Theyre growing fast and looking for bright, dynamic people to help build their business. Role Theyre looking for an experienced (Principle/Team Lead) Java Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Youll collaborate with solution architects, business analysts, and designers to translate workflows into elegant, maintainable code. Youll play a key part in defining technical standards, optimising runtime performance, and mentoring less- experienced engineers in workflow-centric delivery. This is an ideal role for someone who enjoys solving complex process problems through clean code, automation, and modern engineering practices. The role involves visiting client sites; the company will cover travel expenses. Frequency is uncertain but candidates should be comfortable with that being 2-3 days per week. Client sites could be anywhere but will most likely be in & around London. Responsibilities Design, develop, and deploy Camunda-based process and decision automation solutions Implement and integrate Java-based microservices, APIs, and connectors within orchestration flows Translate BPMN and DMN models into executable workflows and reusable components Collaborate closely with analysts and service designers to refine and iterate business processes Develop and maintain automated test suites, CI/CD pipelines, and containerised deployments Optimise Camunda engine performance and monitor workflow metrics for production environments Participate in code reviews, peer testing, and technical design discussions Contribute to their internal best-practice frameworks and automation accelerators Essential Eligible (have resided in the UK for the past 5 years) and prepared to go through UK SC Security Clearance Strong experience in Java software engineering and object-oriented design Strong Spring (Boot) experience Experience with REST APIs, and microservice architectures Knowledge of Docker and Kubernetes for containerisation and orchestration Proficiency in Git, CI/CD pipelines, and automated testing frameworks Understanding of event-driven design and message brokers (e.g. Kafka, RabbitMQ) Good knowledge of security, authentication, and integration patterns for enterprise systems Experience working in agile teams within digital transformation or automation programmes A willingness to learn BPMN and Camunda tooling Some exposure to process automation or microservice orchestration Desirable Experience with Camunda 8 (Zeebe) clusters and Operate/Tasklist components Experience implementing solutions using Camunda 7 or 8 (BPMN/DMN) Familiarity with Camunda connectors, external task workers, and scripting extensions Exposure to cloud platforms (AWS, Azure, GCP) and infrastructure-as-code (Terraform, Helm) Experience integrating process automation with case-management or service-orchestration platforms Understanding of agentic AI capabilities and how they can complement workflow automation Experience mentoring developers or contributing to open-source Camunda extensions Already holding UK security clearance (SC, DV, eDV) Other Stuff NB: Please only apply if you are a UK National and able to achieve SC or DV clearance. i.e. you have at least 5 years residency in the UK with no more than a 3 month break outside the UK. NB: for non-UK Citizens; we cannot accept applications from anyone requiring sponsorship (now or in the future) for UK permanent employment status. If you are utilising a work visa this must allow you to work in the UK unrestricted for at least the next 5 years. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid lead senior manager manage
Join a leading independent technology and services provider as a Java Developer - e-Trading! Job OverviewJoin a fast-paced and highly collaborative eFX Quantitative Developer team within Global Markets. You'll help build and enhance a best-in-class eFX trading platform, working closely with quants and traders to drive automation, performance, and revenue. This role sits within the Principal Flow Trading stream and offers hands-on ownership of the full development lifecycle. Location: London (Hybrid) Daily Rate: Flexible Contract Length: Until Dec 2026 Start Date: ASAP Key Responsibilities Develop and enhance a low-latency, high-throughput eFX algorithmic trading platform Own initiatives end-to-end: analysis, design, implementation, delivery Design, implement, and back-test pricing and execution strategies Build analytics to monitor model and platform performance Enhance the proprietary eTrading framework used across Global Markets Collaborate closely with quants, traders, and technology teams in an agile environment Key Requirements Strong business knowledge of electronic trading, ideally eFX Proven experience building low-latency, event-driven algorithmic trading platforms Advanced Java expertise, including lock-free and low-garbage techniques Experience working with quant teams and implementing algorithmic models Familiarity with messaging protocols such as Aeron, Kafka, FIX, SBE, ITCH, OUCH Knowledge of time-series databases (preferably KDB) and Python for analytics Full-stack experience (React) is beneficial for building trader tools and dashboards Additional Information Interview Process: Typically 2 stages - technical interview, system design, and team discussion How to ApplyIf you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us today. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Talent Solutions is a trading division of Hays Specialist Recruitment Limited and acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk
Our client is the leader in their field and with pipeline opportunities that would enable them to double their revenue by the end of 2028. To support this, they are in the early stages of a bold digital transformation to improve operational processes and procedures and to modernise systems and practices so that they can deliver quality at pace.
Currently the team are transitioning from traditional software application development using C#, Blazer and SQL Server integrating with Dynamics Business Central, and the Data team provide analytics and insights using SAS, MicroStrategy and Power BI.
The new model is to continue with a .NET tech stack, but the team will build and run so developing applications and deploying with DevSecOps. The Data team will also deploy solutions and will move to Fabric, Databricks or Snowflake.
With a Data Architect now in place, the focus is to recruit a Technical Lead to lead the software engineering function.
This role will formerly move towards a Head of Engineering & Platform position but will remain hands on. This is leading by doing and mentoring so you will still be building full stack C# applications and deploying with DevOps but leading others too. There are 7 Software Engineers, an Automation Tester, Scrum Master, DevOps, Infra Engineers and Service Desk Team.
You need to have experience of leading end to end software development including design, build, testing, deployment and support. The Service Desk team need to work closely with the build and deployment resources so that they can support products more effectively.
Key areas of responsibility:
Define and execute the engineering strategy across Azure cloud, integration, and legacy modernisation, aligned to the clients long-term digital roadmap.
Design and deliver cloud-native solutions that scale efficiently, perform reliably, and integrate seamlessly across business functions.
Lead by example in Azure DevSecOps: create and manage pipelines (YAML), infrastructure-as-code (Bicep, Terraform), and container orchestration (AKS, Docker).
Embed engineering best practice: implement CI/CD, code quality gates, automated testing, and observability from build to production.
Guide platform evolution: re-engineer legacy .NET and SQL systems into modular, API-driven architectures.
Build and empower teams: mentor full-stack, DevOps, and Automation Test engineers fostering autonomy, innovation, and accountability.
Champion security and reliability by design: integrate compliance, performance, and monitoring into every stage of delivery.
Collaborate widely: partner with Product, Data, and Infrastructure teams to ensure alignment between technology capability and commercial goals.
Drive innovation: pilot emerging technologies (AI, automation, data services) that improve efficiency and insight.
Tech Stack seeking:
Full Stack Developer; Design and Build with C#, JavaScript Library (React.js bonus), API Development, SQL Server/Backend Development including ETL/Integration
Azure DevOps (Repos, Pipelines, Boards, Artifacts, Test Plans),
CI/CD automation, gated releases, and environment governance
Infrastructure-as-Code (Bicep, ARM, Terraform)
Containerisation (Docker, AKS) and serverless (Azure Functions)
Monitoring and observability (Application Insights, Log Analytics)
Secrets management and vulnerability scanning (Key Vault, SonarQube, OWASP)
Microservices and event-driven design (Service Bus, Event Grid, Kafka)
Domain-Driven Design (DDD) principles
Overall experience:
8+ years in software engineering, with deep full-stack and cloud experience.
Proven record of leading end to end engineering teams through modernisation or platform rebuilds (Design, build, test, deploy, support)
Azure DevOps and enterprise-scale CI/CD. (DevSecOps a bonus)
Excellent architectural judgement; balancing delivery speed, stability, and cost efficiency. Good understanding of SOLID principles
Strong communication and leadership presence able to influence peers and executives alike. This role needs high energy and to take the team on a journey
A continuous learner, passionate about automation, clean code, and scalable design.
This is an exciting time to join a digital transformation in the early stages to lead and influence their transition to modern practices and systems to help them scale and grow at pace.
The role will ideally be Peterborough 2 days a week and 3 days remote. However this can also be based out of London (City) but with Peterborough for 2 days per month for 4 months then London 1 day a week and Peterborough 1 day some weeks. Travel from London + overnight stays in Peterborough will be paid.
TPBN1_UKTJ
Senior Software Engineer Salary: £75k-£110k (plus attractive bonus on top) Location: London or Leeds (relaxed about hybrid or remote working, if preferred) My client is a specialist provider of sports pricing and trading technology, developing advanced simulation-based models and risk tools that underpin the performance of major sports brands.
Role Overview Were looking for a Senior Software Engineer to join the Modelling & Data Engineering group at a rapidly expanding sports-technology business. This is a hands-on role in a fast-moving environment where youll help shape new modelling tools, improve existing systems, and contribute to the technical foundations that support the companys growth.
What youll be working on Developing high-quality, maintainable software using .NET technologies.
Taking ownership of greenfield initiatives, designing and building internal tools that support the companys modelling capabilities.
Helping to gather, process and structure the data that powers the modelling pipeline.
Introducing new technologies, improving architectural patterns and reducing technical debt to enhance performance and maintainability.
Collaborating closely with colleagues across the Modelling & Data Engineering function to manage the full lifecycle of internal tooling.
Qualifications Essential A degree in a STEM discipline (Computer Science preferred), or equivalent demonstrable programming ability.
Certifications or training aligned with the companys core tech stack (e.g., .NET, AWS).
Strong programming fundamentals, including data structures, performance-focused development, design patterns and SOLID principles.
Commercial experience working with .NET (ideally .NET 5+).
Good SQL knowledge and at least one year working with relational databases.
Experience with distributed streaming platforms such as Kafka.
Familiarity with in-memory storage solutions like Redis.
Hands-on experience with AWS services such as S3, Athena, ECS, CloudFormation, Lambda and CloudWatch.
Confident using Git in a multi-developer environment.
Background in systems integration, including APIs, networking and data migration.
A commitment to producing clean, well-documented, reproducible systems.
Strong communication, organisation and time-management skills, with the ability to work independently or as part of a team.
Analytical mindset and strong problem-solving ability.
Desirable Interest in US sports (NFL, NBA, MLB, NHL, NCAAB, NCAAF), Cricket, Tennis or Football.
Experience collaborating with Data Scientists or Data Engineers.
Comfort with mathematical concepts such as probability, statistics and matrix operations.
Additional notes While experience with C# is preferred, candidates with a strong Java background and relevant industry exposure - or a clear personal interest in betting, gaming or US sports - will also be considered.
TPBN1_UKTJ
We have a current opportunity for a Rust Engineer on a permanent basis. The position will be based in London. For further information about this position please apply.
you will build the infrastructure that sits between our traders and the market - execution paths, data pipelines, and observability tooling that power trillions in annual notional volume. When a system performs at 3am under peak load, you will be one of the reasons why. This is a rare opportunity to apply Rust in a domain where performance directly changes outcomes, and where your engineering decisions carry real commercial weight.
Requirements
Nice to Have
What We’re Looking For
You find the bottleneck before anyone reports it, understand it at the hardware level, and instrument the fix so the next problem surfaces in seconds. You write Rust other engineers learn from and care deeply.
To find out more about Huxley, please visit (url removed)
Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy Registered office 8 Bishopsgate, London, EC2N 4BQ, United Kingdom Partnership Number OC(phone number removed) England and Wales
We’re looking for a Splunk & OpenShift Observability Engineer to design, deploy, and optimise enterprise-grade monitoring across hybrid Kubernetes and OpenShift environments.
This is a high-impact role where you’ll shape observability strategy, enhance service intelligence, and ensure platform reliability at scale - balancing performance, cost efficiency, and security governance.
You’ll work at the intersection of platform engineering, observability, and service intelligence, helping to transform raw telemetry into actionable insight. This is an opportunity to influence reliability strategy, improve operational maturity, and deliver measurable value across a modern cloud-native estate.
What You’ll Be Doing
What You’ll Bring
Up to £550 per day - Inside IR35
London / Remote
6 months
My client is an instantly recognisable consultancy who require Front End Developers with Active SC Clearance to join a business-critical programme for an end client within the Public Sector.
Key Requirements:
Nice to have:
Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C’s, Privacy Policy and Disclaimers which can be found at hays.co.uk