55 senior engineer jobs found in London

As Household Business is currently undergoing a significant transformation and is seeking a Senior Enterprise WordPress Engineer to join on a contract basis. This is a high-impact role working closely with a cross-functional team, where you will be expected to proactively drive delivery and make a genuine, measurable impact through high-quality execution. Duration - 3-6 month inital Rate - £500PD (outside IR35) Location - Remote What You’ll Do Develop, enhance, and maintain enterprise-scale WordPress platforms, delivering new features and functionality to a high standard Build and maintain shared WordPress plugins, microservices, and JavaScript applications that support multiple brands Create custom Gutenberg blocks, APIs, and integrations aligned with modern WordPress best practices Monitor, troubleshoot, and improve performance across Core Web Vitals, response times, and database queries Work closely with cross-functional teams (engineering,...

Contract Senior Data Engineer - £500 - £600 per day - Outside IR35 - Python/Snowflake/AWS Role: Contract Senior Data Engineer Rate: £500 - £600 per day Determination: Outside IR35 Interview Process: 2x Call Technology: SQL/Python/DBT/AWS/Snowflake/Airflow In office requirement: 1 day per week Duration: 6 months Burns Sheehan have been supporting the build of a new team and we are adding to this with another Contract Senior Data Engineer. As a Contract Senior Data Engineer, you will support on core Data Engineering capabilities as well as modernising the Data stack and supporting a migration. Working alongside their Director of Data & Principal Data Engineer, you will be a key component. If this Contract Data Engineer sounds like you, please apply now for immediate consideration. Contract Senior Data Engineer - £500 - £600 per day - Outside IR35 - Python/Snowflake/AWS

Start date: ASAP Expertise in automation and manual testing (unit, integration and E2E) Immediate interviews Initial contract duration: 6 months (likely to extend) £ day rate (outside IR35) 2 days per week in-office, including client (City) Joining a cross-functional delivery team to support the QA phase of a key onboarding journey for a global financial services firm. Working closely with developers and client stakeholders to plan, execute, and maintain testing across three layers: unit, integration, and end-to-end. Running and evolving automated tests using Playwright alongside developers, while also performing hands-on manual testing to validate new features as they are delivered and ensure a reliable, high-quality user experience.

Senior Data Engineer - Fabric London Hybrid - Outside IR35 We're hiring on behalf of our business we've partnered with for over 8 years, supporting them in building and scaling high-performing technology and data teams. They are now seeking an experienced Senior Data Engineer with strong Microsoft Fabric and Power BI expertise to play a key role in delivering enterprise-scale data solutions. This position will be instrumental in supporting a major global ERP transformation programme , ensuring high-quality reporting, robust data pipelines and scalable data warehouse architecture are in place to drive accurate stakeholder insight and business decision-making across international operations. Key Responsibilities Implement data migration strategies using Microsoft Fabric for reporting and stakeholder consumption Design and build data pipelines using Fabric Pipelines, Azure Data Factory, Notebooks and SSIS Model data from multiple sources into structured outputs...

Contract role: Senior Software Engineer: Up to £475 per day Outside IR35: 6 months rolling: Hybrid Monthly (London) An innovative digital consultancy is looking for experienced Senior Software Engineers to design and architect scalable, high-performance systems for a cutting-edge platform being developed for a major client. In this role, you'll tackle complex technical challenges as part of an agile team following Scrum methodologies. As a Senior Software Engineer, you'll set the standard for code quality and best practices, actively contributing to code reviews and collaborative programming sessions with your team. As a Senior Software Engineer, you will be experienced with: C#, .Netcore JavaScript, React.js AWS or Azure Key information: Up to £475 per day Outside IR35 6 months rolling Hybrid Monthly (London) This is an exciting opportunity for a Senior Software Engineer to join a high-performing development team. Contract role: Senior Software...

Contract Data Engineer - Snowflake/DBT/Python/SQL Healthcare/Pharma Industry £550-£600 per day - Outside IR35 London (Hybrid - 2 days onsite) 12 months + extension likely We're supporting a leading organisation building out a modern, cloud-native data platform and looking for multiple Senior Data Engineer with deep Snowflake expertise to join on a long-term contract click apply for full job details

Senior Data Engineer - PySpark, GCP We're recruiting for a Senior Data Engineer with strong PySpark skills, to join a growing team in building out a modern Lakehouse platform in GCP. This is a hands-on role for someone who can take ownership, work independently, work iteratively and delivery quickly. Key skills and experience: Strong experience as a Data Engineer in Cloud Environments (ideally GCP but not essentially) Hands on experience with PySpark and SQL Experience building data lake/lakehouse platforms Strong understanding of distributed data processing (Spark) Experience with Airflow or similar orchestration tools Ability to design and deliver pipelines end-to-end, independently Nice to have: Strong GCP experience Terraform/Infrastructure-as-Code Experience with data quality tools (Great Expectations, Soda) Exposure to data catalog/governance tools Experience of working towards/setting up AI, Agentic Workflows etc What you'll be doing:...

Freelance Senior MEP Planner – Data Centres – London (Outside IR35) I’m currently looking for a heavy-hitting Senior Planning Engineer (MEP) to join a major Data Centre build in London. You’ll be the leading the programme, taking ownership of the MEP fit-out schedule. This isn’t just a reporting role. We need someone who actually understands the sequence of a DC build—from plant movement and high-voltage subs to the final IST/Commissioning phases. What you’ll be doing: Managing the Baseline and high-level project milestones in Primavera P6. Walking the site to verify progress (not just taking the site team's word for it). Producing S-curves and progress reports that actually make sense to the stakeholders. Identifying risks early and running what-if scenarios to keep things on track. Working closely with the Commercial team on delay analysis and records. What you need: Data Centre Experience Background in MEP You should be able to navigate complex...

We are working with a leading London-based organisation that is building a modern, enterprise-wide data platform using Microsoft Fabric and is seeking a Senior Data Engineer to play a key role in its development. This is a hands-on role within a greenfield Fabric environment, supporting critical business areas including finance, operations, and strategic decision-making. The successful candidate will design and deliver scalable data solutions across ingestion, modelling, and optimisation, working closely with cross-functional teams to help shape a robust, future-ready data platform. This role requires the Senior Data Engineer to be onsite at the client's London offices three days per week. Skills / Responsibilities Experience of designing and building scalable, production-grade data pipelines and Lakehouse/Warehouse solutions using Microsoft Fabric (OneLake, Dataflows Gen2, Pipelines, Notebooks) Experience of implementing advanced Fabric capabilities such as Shortcuts,...

Senior Full-stack Python Typescript AI Engineer- Outside IR35   ROLE   This position is for a Senior Backend Developer working in python and typescript to support the development on a SaaS product with a focus on Ai.   This role involves designing, building, and optimising scalable backend services and APIs to support a single-tenant, multi‑instance SaaS platform, while contributing to the architecture and implementation of AI‑driven components such as Retrieval‑Augmented Generation (RAG) pipelines, vector databases, semantic search, and structured or knowledge‑graph‑based data modelling approaches. You will support the design of robust data models and pipelines capable of handling both structured and unstructured data with strong traceability and auditability, and help transition prototypes into production‑ready systems with a focus on security, access control, performance, reliability, observability, and monitoring. The role also includes building and managing...

Senior Backend Engineer (Kotlin/GCP) 6 month contract initially, Outside IR35, Fully remote role (UK/Europe) A leading global consumer technology company is building products that prioritise safety, equity, and meaningful user experiences. They are seeking a Senior Backend Engineer with strong technical judgment, a high sense of ownership, and the ability to drive work forward even when requirements are not fully defined. You'll work primarily with Kotlin and Google Cloud Platform, helping to design, build, and evolve Back End systems that support products used by millions of users worldwide. This role suits someone who thrives in ambiguity, executes with focus, and elevates teams through clarity, momentum, and example. What You'll Do Design, build, and operate reliable, scalable Back End services using Kotlin Own and evolve systems running on GCP, contributing to architecture, reliability, observability, and cost optimisation Take loosely defined problems...

Contract Data Engineer - Snowflake/DBT/Python/SQL Healthcare/Pharma Industry £550-£600 per day - Outside IR35 London (Hybrid - 2 days onsite) 12 months + extension likely We're supporting a leading organisation building out a modern, cloud-native data platform and looking for multiple Senior Data Engineer with deep Snowflake expertise to join on a long-term contract. What you'll work on Building & optimising scalable Snowflake pipelines Data modelling, quality, lineage & observability Python + dbt engineering in a modern cloud environment Collaborating with architects & product teams Driving best practice across the data platform Tech stack Snowflake, SQL, Python, dbt, AWS (or Azure/GCP), CI/CD, Airflow/Prefect/Dagster, Fivetran/Matillion Ideal profile Strong Snowflake engineering background Comfortable owning end-to-end pipeline delivery Experience in regulated environments (pharma/healthcare a bonus) Clear communicator who can influence...

We are working with a leading London-based organisation that is building a modern, enterprise-wide data platform using Microsoft Fabric and is seeking a Senior Data Engineer to play a key role in its development. This is a hands-on role within a greenfield Fabric environment, supporting critical business areas including finance, operations, and strategic decision-making. The successful candidate will design and deliver scalable data solutions across ingestion, modelling, and optimisation, working closely with cross-functional teams to help shape a robust, future-ready data platform. This role requires the Senior Data Engineer to be onsite at the client's London offices three days per week. Skills/Responsibilities Experience of designing and building scalable, production-grade data pipelines and Lakehouse/Warehouse solutions using Microsoft Fabric (OneLake, Dataflows Gen2, Pipelines, Notebooks) Experience of implementing advanced Fabric capabilities such as Shortcuts,...

Job Ref :- 842 | Sr. Data Engineer | GCP | Hybrid | Outside IR35) Apply via LinkedIn or Email CV :-HR@AGITCONSULTANCY.CO.UK Lead Data Architect / Senior Data Engineer (10+ Years Experience) Professional Summary Results-driven Lead Data Architect / Senior Data Engineer with 10+ years of experience in designing, building, and optimizing scalable data platforms and pipelines on Google Cloud Platform (GCP). Combines strong architectural expertise with hands-on engineering capabilities, specializing in data warehousing, big data processing, streaming & batch pipelines, and cloud-native solutions. Proven ability to lead teams, define enterprise data strategies, and deliver end-to-end data solutions, including large-scale data migrations from legacy systems (SAP, Oracle, Teradata) to BigQuery. Experienced in enabling data governance, advanced analytics, and AI/ML-driven solutions, while ensuring high standards in performance, scalability, and security. ______________ Core...

Senior Software Engineer - Outside IR35 - Contract - Current SC Essential We're hiring a Senior Software Engineer to join a high-impact government programme of work. This is an outside IR35 contract with a strong potential for extension beyond the initial 6-month term, making it a great opportunity for experienced contractors looking for stability and interesting work. The project sits within a complex, delivery-focused environment where your engineering decisions will genuinely matter. You'll be working as part of a collaborative team building robust, scalable solutions for a public sector client. Tech Experience: Java, Spring Boot, Typescript and React. £550 per day outside IR35 Start date: 28/04/2026 End date: 30/10/2026 About Softwire Softwire is a leading UK technology and strategy consultancy. From enterprise to government, we help visionary organisations turn strategic ambitions into results at scale. Our practices cover AI...

Senior Software Developer / Data Engineer - (Contract Outside IR35) In brief We’re looking for well-rounded software developers with experience in data engineering, with a proven ability to tackle complex data challenges, make an excellent impression on clients, and have a high impact on the output of your entire team. We provide a supportive environment with a strong focus on individual career progression, where you will have both the mentorship and project opportunities you need to develop your technical skills. You’ll work in a team alongside other talented developers and data engineers, supported by a Technical Lead. Projects span a range of sizes and multiple sectors and technologies. The role Experience and qualifications You have 4+ years’ experience and a breadth & depth of technical knowledge & expertise, particularly in data engineering, and can solve technical challenges across front-end, back-end, and infrastructure. You have...

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,...

Join a leading Insuretech company where you'll drive engineering excellence while leading high-performing teams in a collaborative, innovation-focused environment. Salary: £700 - 750 per day Engineering Manager (C#) - £700-750 per day – London (.NET, C#, SQL, Azure, Kubernetes, Docker, CI/CD Pipelines) We're working with a leading Insuretech company that are looking for an Engineering Manager to join them for an initial 6-month contract. This person will be tasked with leading engineering teams by combining strong delivery management with hands-on technical leadership and stakeholder management. This role will fall OUTSIDE IR35 and will require travel to their City of London based office twice per week. Skills & Experience Required Strong background as a senior engineer, architect, or technical lead with demonstrable delivery experience. Ability to apply algorithmic thinking and structured problem solving to real-world engineering challenges. Proven experience...

Full job description Join a leading Insuretech company where you'll drive engineering excellence while leading high-performing teams in a collaborative, innovation-focused environment. Salary:  £700 - 750 per day Engineering Manager (C#) - £700-750 per day – London (.NET, C#, SQL, Azure, Kubernetes, Docker, CI/CD Pipelines) We're working with a leading Insuretech company that are looking for an Engineering Manager to join them for an initial 6-month contract. This person will be tasked with leading engineering teams by combining strong delivery management with hands-on technical leadership and stakeholder management. This role will fall OUTSIDE IR35 and will require travel to their City of London based office twice per week. Skills & Experience Required Strong background as a senior engineer, architect, or technical lead with demonstrable delivery experience. Ability to apply algorithmic thinking and structured...

Engineering Manager (C#) - £700-750 per day - London (.NET, C#, SQL, Azure, Kubernetes, Docker, CI/CD Pipelines) We're working with a leading Insuretech company that are looking for an Engineering Manager to join them for an initial 6-month contract. This person will be tasked wutg leading engineering teams by combining strong delivery management with hands-on technical leadership and stakeholder management. This role will fall OUTSIDE IR35 and will require travel to their City of London based office twice per week. Skills & Experience Required - Strong background as a senior engineer, architect, or technical lead with demonstrable delivery experience. - Ability to apply algorithmic thinking and structured problem solving to real-world engineering challenges. - Proven experience leading engineering teams with hands-on involvement in delivery and architecture. - Excellent communication skills - able to translate complex technical topics clearly in both written and...