13 site reliability engineer jobs found

Job Title: AWS Site Reliability Engineer (SRE) Contract Rate: £550–£600 per day outside IR35 Location: Remote / UK-based Contract Length: Initial 6 months (likely extension) Overview We are looking for an experienced AWS Site Reliability Engineer to support the ongoing reliability, scalability, and performance of a large-scale cloud platform. Required Skills Strong hands-on experience with AWS Experience working as a Site Reliability Engineer, DevOps Engineer, or Cloud Platform Engineer Infrastructure as Code experience (Terraform or CloudFormation) Strong Linux administration experience Experience building and maintaining CI/CD pipelines

Lead Data Engineer Rate: £450 per day (Outside IR35) Duration: 6 months Start: ASAP Location: Hybrid – 1 day per week on-site in Stratford, London A leading technology consultancy is seeking a Lead Data Engineer to join on an initial 6-month engagement. The organisation specialises in accelerating digital delivery and helping businesses build high-performing digital products and teams. With a strong presence across the UK, Europe, and the US, the company operates a regional model that fosters close collaboration with clients, enabling impactful and scalable digital solutions. The Lead Data Engineer will act as a technical authority across key initiatives, providing leadership and mentorship while driving the design and delivery of robust, scalable data solutions. Key Responsibilities Act as technical lead on key initiatives, providing guidance and mentorship to engineering teams Collaborate with Product Managers, Project Managers, and...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

Senior Fullstack Engineer £450-550 per day 6 months Outside IR35 Hybrid - 2 days per week on site (London) We're supporting a high-growth, AI-driven product business building a scalable platform from the ground up. They operate as a small, high-calibre team with high standards, low bureaucracy, and real ownership. They're looking for a Senior Fullstack Engineer (Back End leaning) to take responsibility for core Back End systems and help shape product direction in fast-moving environment. This is a role for someone who is comfortable building without perfect specs and takes initiative naturally. Requirements Strong Node.js and GraphQL (NestJS) experience PostgreSQL, Prisma, and solid data structures/OOP fundamentals Experience building high-concurrency, event-driven systems GCP experience (Terraform desirable) Experience working with AI/LLMs in production environments Strong focus on system reliability (monitoring, alerting, logging, testing,...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

Senior React Engineer (Contract) Location: London (hybrid) Day rate: £500–£650 (outside IR35) Start: ASAP Duration: 6 months (likely extension) Overview We’re working with a well-funded, product-led business undergoing a significant evolution of its frontend platform. This is not a greenfield “build a landing page” role. This is a core product engineering position , focused on building scalable, high-performance user experiences used daily by customers. You will be joining a team that values clean architecture, strong engineering standards, and pragmatic delivery . What you’ll be doing Building and scaling complex web applications using React and Next.js Contributing to a modern frontend architecture (component-driven, modular, scalable) Working closely with product, design and backend teams to deliver end-to-end features Improving performance, reliability and maintainability across the frontend codebase Writing clean,...

AI / LLM Engineer (Copilot, Azure AI) Leeds (Hybrid – 3 days onsite) | Contract | Outside IR35 | Competitive Day R ate We’re looking for a hands-on AI / LLM Engineer to design and deliver enterprise-grade Generative AI and Copilot solutions within a modern cloud environment. This role sits at the intersection of AI engineering, architecture, and platform delivery, with a strong focus on building scalable, secure, and production-ready AI systems. What You’ll Be Doing Design, build and deploy Copilot solutions, AI agents and LLM-powered applications Develop end-to-end LLM workflows (prompt orchestration, automation, integrations) Implement and optimise RAG pipelines, embeddings and vector search strategies Integrate AI solutions with enterprise systems, APIs and data platforms Build scalable and reusable components (prompt libraries, connectors, templates) Apply secure-by-design and responsible AI practices (guardrails, monitoring, auditability)...

Outside IR35 Contract - Senior/Lead Kotlin Engineer – Backend / Distributed Systems - £700-800/day Tier-One Global Investment Bank | London A tier-one global investment bank is expanding a new engineering group responsible for building modern digital financial platforms from the ground up. This team operates with the autonomy and pace of a start-up, backed by the scale and resources of one of the world’s largest financial institutions. Engineers work in small, highly collaborative teams designing and operating systems that power critical financial services used by millions of customers. This is a 6-month rolling contract, on a programme of work estimated to last 2-3 years. We’re looking for experienced Senior and Lead backend engineers who specialise in server-side Kotlin on the JVM , with a strong interest in building reliable distributed systems and scalable cloud platforms. You’ll help design and build high-performance backend services, working closely...

'sQL Data Engineer (SQL Server, Python, DBA) Location: Remote- Some travel to London Contract: Contract Rate: £550-£600 Per Day- Outside IR35 We are currently looking for an experienced SQL Data Engineer to support the ongoing development and stability of a critical data platform. This role sits within an established technology team and focuses on BAU data engineering, database optimisation and ongoing data migration activity. The successful contractor will combine strong SQL development with hands on DBA capability, ensuring databases remain secure, performant and reliable while supporting continuous improvements to the wider data estate. This is an excellent opportunity for a pragmatic engineer who enjoys working on live production systems while helping evolve data architecture over time. Key Responsibilities Design, build and maintain SQL-based data solutions supporting business critical applications Develop and optimise stored procedures, queries...

Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days We’re supporting one of the UK’s largest consumer digital platforms as they scale their engineering capability across several high-traffic products used by millions of customers. They’re looking for Senior / Lead Full-Stack TypeScript Engineers with deep GraphQL expertise to help evolve and scale their API architecture. This role sits within a high-performing product engineering team responsible for building and maintaining critical services that power modern web and mobile experiences. You’ll play a key role in designing and evolving GraphQL schemas, improving API architecture, and delivering performant full-stack applications within a mature engineering environment. This is an opportunity to work on complex distributed systems at significant scale, collaborating...

Outside IR35 Contract - Senior/Lead Kotlin Engineer – Backend / Distributed Systems - £700-800/day Tier-One Global Investment Bank | London A tier-one global investment bank is expanding a new engineering group responsible for building modern digital financial platforms from the ground up. This team operates with the autonomy and pace of a start-up, backed by the scale and resources of one of the world’s largest financial institutions. Engineers work in small, highly collaborative teams designing and operating systems that power critical financial services used by millions of customers. This is a 6-month rolling contract, on a programme of work estimated to last 2-3 years. We’re looking for experienced Senior and Lead backend engineers who specialise in server-side Kotlin on the JVM , with a strong interest in building reliable distributed systems and scalable cloud platforms. You’ll help design and build high-performance backend services, working closely...

Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days We’re supporting one of the UK’s largest consumer digital platforms as they scale their engineering capability across several high-traffic products used by millions of customers. They’re looking for Senior / Lead Full-Stack TypeScript Engineers with deep GraphQL expertise to help evolve and scale their API architecture. This role sits within a high-performing product engineering team responsible for building and maintaining critical services that power modern web and mobile experiences. You’ll play a key role in designing and evolving GraphQL schemas, improving API architecture, and delivering performant full-stack applications within a mature engineering environment. This is an opportunity to work on complex distributed systems at significant scale, collaborating...