76 to 100 of 180 CI/CD Jobs in the City of London

Duration: Contract Workload: Full time hours Setup: Freelance (Daily rate / Limited Company / Umbrella / Sole Trader) Location: Remote (UK‐based) Overview We need a Lead Analytics Engineer to define, scale and future‐proof data practices for a complex Energy Intelligence Platform operating at real‐time … scalable, reliable analytics data models built on modern best practices. Define and enforce analytics engineering standards across the data organisation, including CI / CD, testing and modular design. Design advanced dimensional data models to support highly complex analytical and operational scenarios. Own the long‐term ...

best practices in data cloud implementations Design, develop, and implement scalable data solutions using modern cloud data platforms Architect and deliver robust ETL / ELT pipelines and data integration solutions for enterprise clients Drive technical excellence across projects, establishing coding standards, best practices, and quality assurance processes Collaborate with … Microsoft Fabric, or similar Understanding of data modelling principles, dimensional modelling, and database design Proficiency in SQL and query optimization Comprehensive knowledge of ETL / ELT processes and data pipeline architecture Excellent communication skills with the ability to collaborate across cross-functional teams Experience managing client relationships at various ...

autonomous task execution using LLMs and advanced reasoning frameworks. LLM Specialization: Implement RAG (Retrieval-Augmented Generation) pipelines and fine-tune models using PEFT / LoRA to create domain-specific insurance experts. Production Engineering: Design and maintain robust ETL / ELT pipelines and manage the lifecycle of models using … Docker, Kubernetes, and CI / CD . Responsible AI: Ensure our systems are trustworthy by implementing quantifiable metrics for bias detection, explainability, and privacy. Performance Tuning: Optimize data workflows for maximum scalability and cost-efficiency. Insurance Domain experience is added advantage. Your Technical Toolkit ...

autonomous task execution using LLMs and advanced reasoning frameworks. LLM Specialization: Implement RAG (Retrieval-Augmented Generation) pipelines and fine-tune models using PEFT / LoRA to create domain-specific insurance experts. Production Engineering: Design and maintain robust ETL / ELT pipelines and manage the lifecycle of models using … Docker, Kubernetes, and CI / CD . Responsible AI: Ensure our systems are trustworthy by implementing quantifiable metrics for bias detection, explainability, and privacy. Performance Tuning: Optimize data workflows for maximum scalability and cost-efficiency. Insurance Domain experience is added advantage. Your Technical Toolkit ...

solutions clearly Mentor engineers and help uplift team capability and standards What They’re Looking For Strong experience building modern full-stack applications (JS / TS / Node or similar) Deep knowledge of at least one modern frontend framework (React, Vue, Next.js) Experience designing and delivering scalable, cloud … based systems (AWS, Azure or GCP) Strong understanding of API design (REST / GraphQL), databases and system architecture Experience with CI / CD, infrastructure as code (e.g. Terraform) and automated testing Ability to design for non-functional requirements (performance, scalability, security, accessibility) Comfortable working ...

Engineering Lead (C++) – Low Latency / Trading Systems Location: London (Hybrid) Overview Our client is a global fintech operating at scale across trading, risk, and market connectivity. They are hiring an Engineering Lead (C++) to take ownership of a business-critical platform sitting at the heart of real-time … latency or high-performance systems Track record of modernising or scaling complex legacy platforms Ability to improve release processes, CI / CD, and system reliability Comfortable working directly with business stakeholders (trading / risk / product) Exposure to Python is beneficial Experience within ...

Senior ML / MLOps Engineer (MLflow) | Databricks | Azure) About Optima Partners We’re an advanced data & business consultancy helping major consumer brands transform through data-driven customer strategy, design, and engineering. Our clients include leading UK and global brands across financial services, retail, and more. Join a practitioner … data & ML pipelines in Databricks (Delta, DLT, Jobs) Design and maintain Azure data architectures (Data Lake, Synapse, SQL DW) Create robust CI / CD pipelines for ML + data using Azure DevOps, Git, Jenkins Automate infrastructure with Terraform / ARM / Ansible Work ...

batch processing Lead development on key projects, ensuring high-quality engineering standards Produce reusable assets, modules, and DataWeave transformations Contribute to API specifications (RAML / OAS) and integration design documentation Ensure robust logging, monitoring, alerting, and error handling frameworks Support CI / CD pipelines … 2.0 and Anypoint Platform MuleSoft Certified Developer Level 1 (Level 2 desirable) Experience delivering enterprise-scale integrations Integration experience with Salesforce, SAP, ServiceNow, AWS / Azure, databases, and legacy systems Knowledge of API security (OAuth 2.0, JWT, mTLS / SSL / TLS) Familiarity with CloudHub v2.0, Runtime ...

cloud and AI workloads. Collaborate across teams to enhance platform stability, security, compliance, and cost efficiency .Drive automation, Infrastructure‐as‐Code, CI / CD, and modern engineering practices. Implement governance controls and guardrails for responsible, regulatory-compliant AI use. Produce architectural designs and engineering documentation … support scalable, repeatable solution patterns. Key Skills / Experience: Deep hands‐on Azure engineering experience, including Infrastructure‐as‐Code (Bicep / ARM / Terraform). Strong proficiency in Python and PowerShell for automation, integration, and AI workflows. Real‐world experience implementing and supporting cloud platforms and identity ...

Required Skills & Experience Strong experience in automation testing using Selenium / Playwright / Cypress Proficiency in programming languages such as Java, Python, or C# Experience with API testing (Postman, REST Assured, or similar) Knowledge of testing frameworks (TestNG, JUnit, Pytest, etc.) Familiarity with CI / CD tools (Jenkins, Azure DevOps, GitHub Actions) Good understanding of SDLC, STLC, and Agile methodologies Experience with version control systems (Git) Strong analytical and problem-solving skills ...

seen it. This role is about building the infrastructure that actually holds up under real-world production demand. Why This Role Leading major media / streaming end client Real ownership of backend systems at scale Solving complex distributed systems problems in a high-traffic environment The Company / … delivering scalable APIs and microservices Building backend systems using Python + AWS (Lambda, API Gateway, S3, DynamoDB) Handling event-driven architectures (Kafka, SNS / SQS, etc.) Driving system design decisions across distributed systems Improving observability, reliability, and performance in production Debugging complex issues and leading resolution across teams Staying ...

evolve a self-service internal developer platform (IDP) Debug production issues across Kubernetes, networking, and distributed systems Drive adoption of IaC, CI / CD, observability, and automation Scale containerised microservices architecture in Kubernetes Own and improve security, compliance, and system reliability Optimise performance for high … throughput, low-latency systems Mentor engineers and influence platform-wide best practices What We’re Looking For 6+ years in Cloud Infrastructure / DevOps / Platform Engineering Strong experience managing production infrastructure at scale Deep expertise in AWS and Kubernetes ecosystems Strong understanding of distributed systems and reliability ...

datastores. Build solutions within an Agile and DevSecOps environment, embedding security and quality throughout the delivery lifecycle. Integrate backend services into CI / CD pipelines, supporting automated testing and deployment. Ensure systems are reliable, resilient and scalable, applying Site Reliability Engineering (SRE) principles. Collaborate closely … Experience DV security clearance is essential. Proven experience as a backend or software engineer delivering production systems. Strong coding ability in Java, Python and / or JavaScript / TypeScript. Solid understanding of backend engineering fundamentals, design patterns and API design. Experience working in Agile teams (e.g. Scrum, Kanban ...

Title: Frontend Engineer – React / TypeScript / Next.js Location: London (Hybrid – 2‐3 days in office) Salary: £70,000 – £75,000 + Equity About the Company You’ll join a fast‐scaling SaaS business that’s redefining how enterprise sales teams operate. Their platform uses advanced … work will be visible at scale. What You’ll Do Build and maintain modern web applications using React , TypeScript , and Next.js . Translate UI / UX designs into responsive, accessible and high‐performance user interfaces. Collaborate strategically with backend engineers, product owners and designers to deliver ...

Define current-state, target-state and transition architectures, including phased roadmaps and dependency-aware migration plans. Apply platform engineering practices (IaC, CI / CD, DevOps) aligned to landing-zone / enterprise-scale guardrails (e.g. Azure CAF). Design modern enterprise integration patterns (APIs, event … driven and service-based approaches). Produce clear, auditable artefacts for governance and assurance (HLD / LLD, ADRs, options appraisals). Act as design authority lead design reviews / ARBs, communicate trade-offs, and support build-phase conformance. Support delivery reporting / RAID, knowledge transfer, capability uplift ...

/ Kubernetes DevOps Engineer (Contract) £450+ per day (DOE) | 12 months | Outside IR35 | London (3 days onsite) We are delivering a major secure government cloud transformation and are looking for a highly experienced Cloud DevOps / Platform Engineer to help build and run a secure private cloud environment … Google Cloud Platform (GCP) Strong hands-on engineering with Kubernetes (GKE) - essential Use Terraform for Infrastructure as Code Build and maintain CI / CD pipelines (GitLab or similar) Work in secure, disconnected / air-gapped environments Support monitoring, logging, and system reliability (SRE practices ...

service solutions. Our stack includes: Backend Services : Python 3.13, FastAPI, async micro-services architecture Data Layer : Neo4j graph database, PostgreSQL, complex data modelling AI / ML : OpenAI integration, semantic search, conversational agents, unstructured data analysis and extraction Infrastructure : AWS (Lambda, ECS / EKS, API Gateway, S3) DevOps : Terraform … preferred) Experience with containerisation (Docker) and orchestration (Kubernetes) Knowledge of Infrastructure as Code (Terraform, CloudFormation, or similar) Experience setting up CI / CD pipelines Understanding of service deployment, monitoring, and troubleshooting Data Science / Analytics Experience with data analysis using Python (pandas, numpy) Understanding ...

service solutions. Our stack includes: Backend Services : Python 3.13, FastAPI, async micro-services architecture Data Layer : Neo4j graph database, PostgreSQL, complex data modelling AI / ML : OpenAI integration, semantic search, conversational agents, unstructured data analysis and extraction Infrastructure : AWS (Lambda, ECS / EKS, API Gateway, S3) DevOps : Terraform … preferred) Experience with containerisation (Docker) and orchestration (Kubernetes) Knowledge of Infrastructure as Code (Terraform, CloudFormation, or similar) Experience setting up CI / CD pipelines Understanding of service deployment, monitoring, and troubleshooting Data Science / Analytics Experience with data analysis using Python (pandas, numpy) Understanding ...

maintain kdb+ applications and supporting services Support full project delivery lifecycle, including debugging, optimisation and production support Perform data analysis and build reporting / analytics outputs for stakeholders Mentor junior developers and contribute to code quality, standards and team delivery Technical Skills needed : Hands-on experience with kdb+ … Familiarity with Linux-based environments, scripting, and networking concepts (process management, sockets, IPC) Experience with cloud platforms (e.g., AWS, GCP) and containerisation tools (Docker / Podman), plus CI / CD pipelines Knowledge of market data platforms and financial systems (e.g., Bloomberg Terminal, Refinitiv Eikon ...

scraping and more. Prototype and develop simple light web-apps and services that empower internal teams or service our fans, whether that’s Discord / Slack bots, or simple ways for the public to request songs and submit user-generated content. Collaborate with Data experts to turn models … languages such as Python, Node.js, and JavaScript, with a solid understanding of core engineering principles. Version control & deployment practices – Strong experience with Git / GitHub and CI / CD workflows, with a focus on clean, reliable releases. Cloud & backend systems – Experience working with cloud ...

Payments Engineer London – Hybrid (1 day per week onsite) Are you a senior / lead hands-on Engineer who thrives in Payments environments? Do you have a background in building low-latency, high-throughput distributed systems where correctness, resilience, and performance really matter? This is a great opportunity … systems processing millions of real-time payment events Build event-driven architectures using modern Java and reactive frameworks Work extensively with non-blocking I / O, asynchronous flows, back-pressure, and concurrency Contribute to system and API design, focusing on scalability, fault tolerance, and observability Collaborate closely with architects ...

immediate start. Key Responsibilities Design, develop, and maintain backend services and APIs using Scala and Play Framework . Implement RESTful endpoints, manage request / response lifecycle, and handle authentication / authorization flows. Write clean, idiomatic Scala code and apply functional programming principles where appropriate. Develop and maintain automated … tests (unit and integration) and support test automation initiatives. Collaborate with product owners, UX designers, QA, and other engineers in an Agile environment (Scrum / Kanban). Participate in code reviews, architecture discussions, and pair programming sessions. Troubleshoot and resolve production issues; contribute to reliability and observability (logging, metrics ...

Latency Java Engineer London | Hybrid Electronic Trading / Distributed Systems / FinTech A leading global trading technology business is looking to hire a Low Latency Java Engineer to join a high-performing Core Trading team building the systems at the heart of a large-scale electronic trading platform. … Kafka or AMQ • Exposure to financial systems, trading platforms, or electronic trading environments preferred • Experience with modern engineering practices including CI / CD, TDD, and DevOps tooling Strong opportunity for engineers looking to work on highly scalable trading infrastructure within a modern engineering environment. Contact ...

they hit production. This role is about building services that actually work at scale, under real user demand. Why This Role Leading major media / streaming end client Real production impact from day one Solving practical backend challenges in a high-scale environment The Company / Product … APIs and microservices in production Developing backend systems using Python + AWS (Lambda, API Gateway, S3, DynamoDB) Working with event-driven systems (Kafka, SNS / SQS, etc.) Supporting and improving existing production systems Debugging real-world issues and keeping systems stable at scale Collaborating within an existing team + ...

systems, parallel computing, and high-performance processing of large datasets. Strong experience in data pipelines, working with tools such as Pandas, NumPy, and SQL / NoSQL databases. Proven experience working in fast-paced environments, ideally within trading, financial services, or high-frequency environments. Proficiency in developing RESTful APIs, microservices … working with cloud-based architectures (AWS, GCP, or similar). Expertise in testing frameworks, CI / CD, and containerization technologies such as Docker or Kubernetes. Experience in managing and deploying services in Linux / Unix environments. Strong analytical and problem-solving skills, with ...