12 site reliability engineer jobs found in London

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 Data Engineer - Databricks / Data Platforms Robert half is supporting a global risk consulting firm for multiple enterprise clients due to a sustained increase in delivery demand and fully utilised permanent teams. We are seeking an experienced Senior Data Engineer to join as an associate , delivering hands-on data engineering solutions across client environments. This role is delivery-focused, working closely with internal analysts, engineers, and business stakeholders to build robust, production-grade data pipelines. Assignment Details Initial Duration: 3 months (extensions likely) Location: London (1-2 days per week on site) Day Rate: £450-£500 per day via LTD Company (Outside IR35) Start Date: ASAP/January 2026 Key Skills and Experience Required Senior, experienced Data Engineer with strong stakeholder and light project management capability Comfortable working independently and proactively engaging different parts of the business...

Full job description Senior Data Engineer - Databricks / Data Platforms Robert half is supporting a global risk consulting firm for multiple enterprise clients due to a sustained increase in delivery demand and fully utilised permanent teams. We are seeking an experienced  Senior Data Engineer  to join as an  associate , delivering hands-on data engineering solutions across client environments. This role is delivery-focused, working closely with internal analysts, engineers, and business stakeholders to build robust, production-grade data pipelines.   Assignment Details Initial Duration:  3 months (extensions likely) Location:  London (1-2 days per week on site) Day Rate:   £450-£500 per day via LTD Company (Outside IR35) Start Date:  ASAP/January 2026   Key Skills and Experience Required Senior, experienced Data Engineer with strong stakeholder and light project...

Senior Data Engineer - Databricks/Data Platforms Robert half is supporting a global risk consulting firm for multiple enterprise clients due to a sustained increase in delivery demand and fully utilised permanent teams. We are seeking an experienced Senior Data Engineer to join as an associate , delivering hands-on data engineering solutions across client environments. This role is delivery-focused, working closely with internal analysts, engineers, and business stakeholders to build robust, production-grade data pipelines. Assignment Details Initial Duration: 3 months (extensions likely) Location: London (1-2 days per week on site) Day Rate: £450-£500 per day via LTD Company (Outside IR35) Start Date: ASAP/January 2026 Key Skills and Experience Required Senior, experienced Data Engineer with strong stakeholder and light project management capability Comfortable working independently and proactively engaging different parts of the business to source...

Senior Data Engineer - Databricks / Data Platforms Robert half is supporting a global risk consulting firm for multiple enterprise clients due to a sustained increase in delivery demand and fully utilised permanent teams. We are seeking an experienced Senior Data Engineer to join as an associate , delivering hands-on data engineering solutions across client environments. This role is delivery-focused, working closely with internal analysts, engineers, and business stakeholders to build robust, production-grade data pipelines. Assignment Details Initial Duration: 3 months (extensions likely) Location: London (1-2 days per week on site) Day Rate: £450- £500 per day via LTD Company (Outside IR35) Start Date: ASAP/January 2026 Key Skills and Experience Required Senior, experienced Data Engineer with strong stakeholder and light project management capability Comfortable working independently and proactively engaging...

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...

As part of our Software Engineering team, you'll join a well-established and highly regarded organisation, working on solutions that serve millions of customers and thousands of colleagues. Guided by strong ethical values and supported by technology leaders who genuinely understand engineering and engineers, this is an exciting time as we continue our journey to becoming a digital-first, engineering-led organisation. The quality of our engineering team is a key differentiator and central to our success. We are seeking a passionate Software Engineering Manager who brings strong technical expertise, delivers with care, and operates with excellence. Creative, curious, and confident, you will be an integral member of empowered, self-managing, multidisciplinary teams—designing, building, releasing, and maintaining high-quality products. You will play a pivotal role in shaping a best-in-class engineering team, environment, and culture. This is an initial six month contract...

As part of our Software Engineering team, you’ll join a well-established and highly regarded organisation, working on solutions that serve millions of customers and thousands of colleagues. Guided by strong ethical values and supported by technology leaders who genuinely understand engineering and engineers, this is an exciting time as we continue our journey to becoming a digital-first, engineering-led organisation. The quality of our engineering team is a key differentiator and central to our success. We are seeking a passionate Software Engineering Manager who brings strong technical expertise, delivers with care, and operates with excellence. Creative, curious, and confident, you will be an integral member of empowered, self-managing, multidisciplinary teams—designing, building, releasing, and maintaining high-quality products. You will play a pivotal role in shaping a best-in-class engineering team, environment, and culture. This is an initial six month contract and will...

As part of our Software Engineering team, you’ll join a well-established and highly regarded organisation, working on solutions that serve millions of customers and thousands of colleagues. Guided by strong ethical values and supported by technology leaders who genuinely understand engineering and engineers, this is an exciting time as we continue our journey to becoming a digital-first, engineering-led organisation. The quality of our engineering team is a key differentiator and central to our success. We are seeking a passionate Software Engineering Manager who brings strong technical expertise, delivers with care, and operates with excellence. Creative, curious, and confident, you will be an integral member of empowered, self-managing, multidisciplinary teams—designing, building, releasing, and maintaining high-quality products. You will play a pivotal role in shaping a best-in-class engineering team, environment, and culture. This is an initial six month contract and...

Full job description As part of our Software Engineering team, you’ll join a well-established and highly regarded organisation, working on solutions that serve millions of customers and thousands of colleagues. Guided by strong ethical values and supported by technology leaders who genuinely understand engineering and engineers, this is an exciting time as we continue our journey to becoming a digital-first, engineering-led organisation. The quality of our engineering team is a key differentiator and central to our success. We are seeking a passionate Software Engineering Manager who brings strong technical expertise, delivers with care, and operates with excellence. Creative, curious, and confident, you will be an integral member of empowered, self-managing, multidisciplinary teams—designing, building, releasing, and maintaining high-quality products. You will play a pivotal role in shaping a best-in-class engineering team, environment, and culture....

Software Engineer – Full Stack (Python & TypeScript) A fast-scaling FinTech is expanding its engineering team and is hiring a Software Engineer with strong full stack capability across Python and TypeScript . Their platform supports businesses across the UK and continues to grow at pace, with billions already delivered through their systems. This role sits at the centre of their product and platform development, giving you the opportunity to work across the entire stack, influence how systems evolve, and help shape the next chapter of their technology landscape. What You’ll Work On As a full stack engineer, you’ll be involved in every layer of the product — backend services, frontend applications, and everything in between. You’ll: Build and refine production systems across backend (Python) and frontend (TypeScript/React) Design APIs, data flows, and user-facing features that work together seamlessly Work end-to-end: plan, build, ship, and support...

Senior Software Developer in Test | SDET | React | Java | Outside IR35 Modern Test Strategy | Quality Engineering | Public Sector/Consultancy Delivery SR2 is supporting a consultancy partner delivering modern software engineering services across complex Java and React-based systems. This role sits within delivery teams as a hands-on, consultative Senior Software Developer in Test, focused on improving how quality is engineered into software. You'll work closely with developers and platform engineers to modernise testing approaches, reduce brittle end-to-end testing, and introduce smarter, more effective automation strategies, including AI-assisted testing techniques. You'll report into a Principal Software Engineer and act as a testing authority within delivery teams, shaping test strategy rather than just writing tests. The Role You'll take ownership of test architecture and automated testing strategy across Java and React applications, helping teams move away from slow,...