10 senior platform engineer jobs found in London

SRE - Outside IR35 - £520/day - Remote Site Reliability Engineer (SRE) | AWS/Azure/GCP | Terraform | CI/CD | IAM We're supporting a consultancy client hiring an experienced SRE for a 6-month contract , paying up to £520/day (Outside IR35) . Remote-first with occasional Canary Wharf visits. Immediate start. Key Skills Strong SRE/Platform Engineering background Cloud (AWS, Azure or GCP) Terraform/Infrastructure as Code CI/CD & automation SLO/SLI/observability Strong IAM experience : Least privilege access design IAM roles, policies & identity architecture Short-lived credentials (SSO, OIDC) Governance/policy-as-code Role Focus Embed SRE principles (SLOs, SLIs, error budgets) Improve system reliability, scalability & performance Build IaC, pipelines & reusable platform patterns Drive IAM best practices, security & governance Enhance incident response, monitoring & resilience Details 6...

We are seeking a Senior Data Engineer / Developer to join a major Liquidity Reporting programme, delivering regulatory reporting solutions for large UK insurers. This is a hands-on role focused on building and enhancing a Databricks -based data engineering framework. You will design and develop scalable PySpark pipelines covering data ingestion, validation, transformation, and mapping, while creating reusable libraries and ensuring high engineering standards. You will also provide technical leadership, conducting code reviews, guiding offshore teams, and ensuring delivery quality aligns with architectural and regulatory requirements. Key Requirements: Strong experience with Databricks and PySpark Solid Azure data platform experience Proven ability to build reusable frameworks and libraries Experience leading code quality and working with offshore teams Desirable: Experience in regulatory reporting or financial services Exposure to Tagetik...

Senior Software Engineer - APIs & Integration (Azure & Kafka) Contract Length: 6 months Initial Rate: £500-£525 per day Location: Remote IR35: Outside We're supporting a major cloud transformation programme and are looking for an experienced API Architect to help modernise a critical enterprise platform. This role is focused on transforming a large API estate, migrating services from on-premise infrastructure into Azure, and evolving a monolithic architecture into a modern, scalable, event-driven ecosystem. This is a hands-on architecture role where you'll work closely with engineering teams to define architectural standards, guide implementation, and support the delivery of a long-term modernisation strategy. The Opportunity You'll play a key role in: Leading the migration of business-critical APIs from on-premise environments into Azure Defining and driving API architecture across a complex technology landscape Decomposing a large API monolith into...

Senior Data Engineer | Outside IR35 | £450- £550 per day | Hybrid | London We are seeking a Senior Data Engineer/Developer to join a major Liquidity Reporting programme, delivering regulatory reporting solutions for large UK insurers. This is a hands-on role focused on building and enhancing a Databricks -based data engineering framework. You will design and develop scalable PySpark pipelines covering data ingestion, validation, transformation, and mapping, while creating reusable libraries and ensuring high engineering standards. You will also provide technical leadership, conducting code reviews, guiding offshore teams, and ensuring delivery quality aligns with architectural and regulatory requirements. Key Requirements: Strong experience with Databricks and PySpark Solid Azure data platform experience Proven ability to build reusable frameworks and libraries Experience leading code quality and working with offshore teams Desirable: Experience in...

Senior Data Engineer | Outside IR35 | £450- £550 per day | Hybrid | London We are seeking a Senior Data Engineer / Developer to join a major Liquidity Reporting programme, delivering regulatory reporting solutions for large UK insurers. This is a hands-on role focused on building and enhancing a Databricks -based data engineering framework. You will design and develop scalable PySpark pipelines covering data ingestion, validation, transformation, and mapping, while creating reusable libraries and ensuring high engineering standards. You will also provide technical leadership, conducting code reviews, guiding offshore teams, and ensuring delivery quality aligns with architectural and regulatory requirements. Key Requirements: Strong experience with Databricks and PySpark Solid Azure data platform experience Proven ability to build reusable frameworks and libraries Experience leading code quality and working with offshore...

Senior JavaScript Engineer contract - Outside IR35 - £575 per day Leading Ecommerce client is now recruiting a talented ‘Full Stack JavaScript Developer’ who is proficient in front and back-end development. (React/Node.js), with an emphasis on backend Node work initially. This role will be joining their platform team, designing, and building the foundations of which our clients innovative web and mobile applications run on. What will a day in the role entail? Working as an integral part of an agile team contributing towards the planning and development of systems/platforms. Collaborating with engineers, product owners and business analysts to define solutions, ways of working and share knowledge across the department. Reviewing code and providing support to members of your team. Working on client-facing applications in react / next.js Designing and building Node.js / GraphQL APIs. The ideal Senior JavaScript Engineer Senior level experience in modern...

This role is delivered within secure environments. Candidates must be eligible for UK SC clearance and hold UK citizenship. Join the Mission At ByDesign Secure, we believe that world‑class security shouldn't be an afterthought— it should be the foundation. We are an independent, outputs‑based consultancy dedicated to solving the most complex data assurance challenges in the UK public sector. Currently, we are working on a landmark transformation of a cross‑government secure IT system. This is an exciting opportunity to contribute to the design and consumption of a private cloud environment from the ground up and help modernise the end‑user services that support national decision‑making. We don’t believe in “billing by the hour” or rigid hierarchies; we are a lean, expert team focused on delivering high‑impact outcomes. If you are a self‑starter who thrives on autonomy and wants to see your analysis, insights, and business decisions shape the future of sovereign security, we...

This role is delivered within secure environments. Candidates must be eligible for UK SC clearance and hold UK citizenship. Join the Mission At ByDesign Secure, we believe that world‑class security shouldn't be an afterthought— it should be the foundation. We are an independent, outputs‑based consultancy dedicated to solving the most complex data assurance challenges in the UK public sector. Currently, we are working on a landmark transformation of a cross‑government secure IT system. This is an exciting opportunity to contribute to the design and consumption of a private cloud environment from the ground up and help modernise the end‑user services that support national decision‑making. We don’t believe in “billing by the hour” or rigid hierarchies; we are a lean, expert team focused on delivering high‑impact outcomes. If you are a self‑starter who thrives on autonomy and wants to see your analysis, insights, and business decisions shape the future of sovereign security, we...

This role is delivered within secure environments. Candidates must be eligible for UK SC clearance and hold UK citizenship. Opening: Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving some of the most complex technology and security challenges within the UK public sector. We are currently supporting a landmark transformation of a cross-government secure IT system, helping to build and modernise critical digital services, cloud platforms, infrastructure capabilities, and workplace technologies that underpin national decision-making. We don't believe in rigid hierarchies or billing by the hour. We are a lean, expert team focused on delivering meaningful outcomes in highly secure environments. If you are passionate about Agile delivery, servant leadership, and helping teams achieve their full potential, we would love to hear...

Mobile Engineer (iOS/Android) - Contract Location: London (2/3 days per week onsite) Contract Length: 6 months initial (likely extension through to year-end) Rate: Up to £600 per day IR35: Outside IR35 We're supporting a leading technology organisation that is looking for a Mobile Engineer to provide technical leadership across a portfolio of mobile initiatives. This is a unique opportunity for someone who sits between architecture, engineering, and delivery. The role is not focused on writing code day-to-day, but it does require someone with sufficient technical depth to challenge engineering decisions, assess delivery quality, and guide teams towards the right technical outcomes. You'll be joining an environment with significant mobile project demand and multiple delivery workstreams already underway. The challenge isn't a lack of engineering capacity - it's ensuring delivery teams are building the right solutions, following appropriate architectural patterns, and...