29 data integration engineers jobs found in London

Senior Software Engineer | ~£1000/day Outside IR35 | 12-months initial contract | London Industry: Trading Location: London Job Type: Contract - 12-month initial Our client is building the next generation of execution and order management (EMS/OMS) infrastructure for global commodities trading. You will join a small, fast-moving engineering team designing and delivering a cloud-native trading platform from the ground up, tightly integrated with risk, pricing, and market data systems to support high-performance trading environments. This is a senior, hands-on role for an engineer who wants end-to-end ownership — from low-level protocol integration through to distributed execution services and trader-facing tooling. What You’ll Be Doing Design and build core components of a modern EMS/OMS platform, including order routing, order lifecycle management, venue connectivity, and execution analytics. Implement and maintain FIX protocol and venue-specific...

Lead Data Engineer £400/day (Outside IR35) | 3-Month Initial Contract, with view to extend | Remote (occasional travel to London) | UK-based candidates only, must hold full right to work in the UK About the Role We 're looking for a Lead Data Engineer to take ownership of core data engineering and architecture work while providing technical leadership to a delivery team. This is a hands-on senior role for someone equally comfortable designing scalable data solutions and guiding the engineers building them. Key Details Rate: £400 per day, Outside IR35 Contract Length: 3 months initially, with a strong intention to extend Working Pattern: Remote-first, with occasional travel into London as required Location Requirement: Candidates must be UK-based with full right to work in the UK - no sponsorship available The Role Lead core data engineering and architecture initiatives, setting technical direction and best practice Bring prior...

Data Engineer - Salesforce Integration Specialist 6-Month Contract | £450/day | Outside IR35  - King's Cross, London (2-3 Days per Week Onsite) - Start Date: 3rd August We're supporting a leading Salesforce Partner on a confidential end-client engagement and are looking for an experienced Data Engineer with strong Salesforce integration expertise. This role will be focused on building and supporting data integration solutions with Salesforce at the centre of the architecture, connecting multiple business systems and data sources through scalable, reliable pipelines. The Role You will be responsible for designing, developing and maintaining data flows into and out of Salesforce, helping to ensure business-critical data is available, accurate and synchronised across the wider technology estate. Working alongside Salesforce Consultants, Architects and technical stakeholders, you'll play a key role in delivering complex integration solutions and enabling seamless connectivity...

Data Engineer - Salesforce Integration Specialist 6-Month Contract | £450/day | Outside IR35 King 's Cross, London (2-3 Days per Week Onsite) Start Date: 3rd August We 're supporting a leading Salesforce Partner on a confidential end-client engagement and are looking for an experienced Data Engineer with strong Salesforce integration expertise. This role will be focused on building and supporting data integration solutions with Salesforce at the centre of the architecture, connecting multiple business systems and data sources through scalable, reliable pipelines. The Role You will be responsible for designing, developing and maintaining data flows into and out of Salesforce, helping to ensure business-critical data is available, accurate and synchronised across the wider technology estate. Working alongside Salesforce Consultants, Architects and technical stakeholders, you 'll play a key role in delivering complex integration solutions and...

THE ROLE Blackstone& are a technical consultancy who specialise in digital transformation and complex technical deliveries. 15 years ago that meant Cloud adoption. 10 years ago it was DevOps. 5 years ago, SRE and platform engineering. We still cover all of that, but right now a significant part of our work is AI adoption. And we mean actual AI adoption: in production, in Enterprises. Not just a vibe coded app on a local machine. The pace and impact of each wave keeps accelerating, but we think successful adoption still comes down to two things: people and constraints. What does transformation actually look like inside the limits of an organisation, and how do we bring the people along for it? This engagement is with one of our healthcare clients. Healthcare is one of the most consequential environments you can work in: the data is sensitive, the governance is strict, and the stakes of getting things wrong are real. We are not looking for someone who already...

Senior Full Stack Engineer | Outside IR35 | Remote We are looking for a Senior Full Stack Engineer to join a large-scale digital programme within the public sector. This role would suit an experienced engineer who can work across application development and cloud infrastructure within a modern, microservices-based environment. You will contribute throughout the software delivery life cycle, building reliable digital services using TypeScript, Java and AWS. You'll work collaboratively with technical teams and stakeholders, taking ownership across Front End, Back End and DevOps activities. Key Responsibilities Design, build and maintain cloud-native applications and microservices. Develop Back End services using TypeScript, Node.js, Fastify and Java Spring Boot. Contribute to Front End development and integration activities. Build and optimise PostgreSQL databases and data integrations. Deploy and support services across AWS ECS and EKS environments. Develop infrastructure...

Power BI Developer 12 Month Contract | Outside IR35 | £450-£500 per day | Hybrid (London) We're working with a well-established organisation undergoing a major Retail Transformation Programme and are looking to appoint an experienced Power BI Developer on an initial 12+ month Outside IR35 contract . This opportunity sits across several high-profile transformation initiatives, with a strong focus on Retail, Omnichannel and Finance workstreams, delivering enterprise reporting solutions that will become core to the organisation's BAU reporting capability. Essential Experience To be considered for this role, you must demonstrate: Previous experience delivering Power BI solutions within a Retail Transformation programme . Experience supporting Retail, Omnichannel and Finance workstreams. Proven ability to transition reporting solutions from project delivery into BAU , acting as the conduit between transformation teams and operational business functions. Strong...

Power BI Developer 3 Month Contract | Outside IR35 | £450-£500 per day | Hybrid (London) We're working with a well-established organisation undergoing a major Retail Transformation Programme and are looking to appoint an experienced Power BI Developer on an initial 3 + month Outside IR35 contract . This opportunity sits across several high-profile transformation initiatives, with a strong focus on Retail, Omnichannel and Finance workstreams, delivering enterprise reporting solutions that will become core to the organisation's BAU reporting capability. Essential Experience To be considered for this role, you must demonstrate: Previous experience delivering Power BI solutions within a Retail Transformation programme . Experience supporting Retail, Omnichannel and Finance workstreams. Proven ability to transition reporting solutions from project delivery into BAU , acting as the conduit between transformation teams and operational business functions. Strong...

AI SOFTWARE ENGINEER - DV CLEARED BRAND NEW OUTSIDE IR35 CONTRACT OPPORTUNITY AVAILABLE WITH A LEADING NATIONAL SECURITY CONSULTANCY FOR AN AI SOFTWARE ENGINEER Contract opportunity for an AI Software Engineer Outside IR35 Day rate up to £650 Hybrid role - London Must hold active UKSV DV clearance To apply please email or call WHO WE ARE? We are working with a specialist consultancy delivering cutting-edge AI and software solutions into the UK National Security and Defence sector. Due to continued growth and the expansion of several mission-critical programmes, we are looking for an experienced AI Software Engineer to join a high-performing engineering team in London. WHAT WILL THE AI SOFTWARE ENGINEER BE DOING? You will be designing and building AI-enabled software systems that support complex operational environments. The role will involve developing scalable backend services, integrating machine learning models into production...

Data Engineer - AI Data Platform - Outside IR35 - Remote The Data Engineer will be responsible for building the core data infrastructure underpinning next-generation AI products, integrating enterprise and third-party data sources, and developing scalable data services to support AI-driven applications. Data Engineer - AI Data Platform - Key Skills: - Proven experience building scalable enterprise data platforms and data infrastructure. - Must have strong understanding of AI/LLM data architectures and enabling AI agents to retrieve and prioritise enterprise data. - Investment Management background preferred - Strong Azure experience, including Azure Service Bus and cloud-native data services. - Experience developing MCP registries, connectors, and data integration frameworks. - Strong experience integrating third-party data providers (eg S&P or similar external data sources). - Experience designing universal data layers to support AI, analytics, and enterprise data...

Senior Power BI Developer - London/Hybrid - 12-month contract - Outside IR35 We're currently supporting a client who is looking to bring in an experienced Power BI Developer on an Outside IR35 contract to help deliver high-quality reporting and analytics solutions across the business with a focus on Finance & Retail data. This is an excellent opportunity for a contractor who enjoys working across the full Power BI lifecycle, from data modelling and DAX development through to stakeholder engagement and production-ready dashboards. The role will require 1 day per week onsite at the clients London offices. The Role You'll work closely with business stakeholders, Data Engineers and Analysts to design, build and optimise scalable Power BI solutions that enable data-driven decision making. Key responsibilities include: Designing and developing Power BI dashboards and reports Building robust semantic models using Star Schema principles Developing advanced DAX measures...

Senior Data Engineer/Modeller | London | Outside IR35 | £400 - £500 | Hybrid This is a hands-on role suited to someone who enjoys working across the full data life cycle - from designing scalable platforms and pipelines to shaping well-structured data models that drive meaningful business insight. You'll operate in a collaborative, small-team environment, working closely with both technical teams and non-technical stakeholders to turn complex requirements into clear, practical solutions. What You'll Be Doing Designing and delivering robust data models (conceptual, logical, dimensional) for analytics and reporting Building and optimising data platforms and ETL/ELT pipelines in cloud environments Ingesting and integrating data from various sources (APIs, databases, flat files) Translating business needs into scalable, maintainable data solutions Applying best practices across data governance, quality, and security Working directly with clients, explaining technical...

Senior Data Engineer / Modeller | London | Outside IR35 | £400 - £500 | Hybrid This is a hands-on role suited to someone who enjoys working across the full data lifecycle - from designing scalable platforms and pipelines to shaping well-structured data models that drive meaningful business insight. You'll operate in a collaborative, small-team environment, working closely with both technical teams and non-technical stakeholders to turn complex requirements into clear, practical solutions. What You'll Be Doing Designing and delivering robust data models (conceptual, logical, dimensional) for analytics and reporting Building and optimising data platforms and ETL/ELT pipelines in cloud environments Ingesting and integrating data from various sources (APIs, databases, flat files) Translating business needs into scalable, maintainable data solutions Applying best practices across data governance, quality, and security Working directly with...

Lead Databricks Data Engineer £500 - £600 per day Outside IR35 London, hybrid working This freelance opportunity offers the chance to shape the future-state data platform for a large, complex financial services organisation. The focus is on moving from slow, batch-based analytics towards a more modern, streaming-led architecture, with clear ownership over data vision, use cases, and delivery direction. The Company They are a well-established organisation operating at scale within the UK financial services and pensions landscape. Managing significant volumes of legacy and live data, they work with both onshore and offshore delivery partners. The business is at a pivotal point in modernising how data is accessed, governed, and used to drive insight. Clear communication and pragmatic decision-making are highly valued. The Role and Deliverables Define a clear end-to-end data vision, covering current state, target architecture, and practical...

UX Designer Length : 3 Months Location :Hybrid London Blackfriars OR Abingdon - 3 days a week IR35 Status : Outside Design experiences that put users first. We're looking for a talented UX Designer to help shape intuitive, user-centred digital products used by a global audience. You'll work closely with Product Managers, Engineers, Designers, and Data teams to uncover user needs, solve complex problems, and create seamless digital experiences. What you'll do: Lead UX activities from discovery through to delivery. Conduct user research and usability testing. Create user journeys, wireframes, prototypes, and interaction designs. Turn customer insights and data into meaningful design decisions. Collaborate with cross-functional teams to define and deliver great user experiences. Champion user-centred design across the product lifecycle. What we're looking for: Proven experience designing digital products and services. Strong UX research and usability...

Senior Software Engineer - Kotlin & Coroutines. £500/day LTD CO OUTSIDE IR35. 100% REMOTE. An interest in AI (Agentic AI, AI tooling, Claude, Codex or Co-Pilot) highly advantageous but not essential. We are looking for a Senior Backend Engineer (Kotlin & Coroutines essential) to build the integrations that connect AI companion with senior care and hospital software platforms. In this role, you will design, build, and maintain robust Back End services and integrations that enable seamless data exchange between the company and partner systems. You'll take end-to-end ownership of integration projects-from discovery and architecture through implementation, deployment, and continuous improvement. Key Responsibilities for the Kotlin & Coroutines Developer are: Design, develop, and maintain integrations between my clients platform and third-party healthcare and senior care software systems. Build scalable, secure, and maintainable Back End services and APIs using...

Databricks + MLOps + Recommendation Systems + Entity Matching Role: Data Scientist Rate: £500-545 GBP per day Outside IR35 4 months initial London - Hybrid Role Summary Senior data scientist/ML engineer to design, build, and productionise ML capabilities on a Databricks platform buildout for an international events company. The role covers three interconnected workstreams: MLOps foundation, recommendation engine (exhibitors and sessions for event attendees), and single customer view (identity resolution across sparse conference registration data). The role includes MLOps framework design and implementation, recommendation approach experimentation and delivery, tiered identity resolution (deterministic + fuzzy matching), a human-in-the-loop review workflow via Databricks Apps, plus documentation and knowledge transfer to the internal team. This is a hands-on delivery role: responsible for both defining the ML approach and implementing it end-to-end....

Data Engineer Location: London (1 day per month onsite) Duration: Initial 6-Month Contract Pay Rate: £550-£590 Outside IR35 The Opportunity We're supporting a growing loyalty and rewards organisation that is expanding its data engineering capability as part of a wider investment in its data platform. They are seeking experienced Data Engineers to build and enhance cloud-based data solutions, working alongside senior technical leadership within a modern data environment. Key Responsibilities Develop and maintain data pipelines and data products. Build and optimise data models within the data platform. Support the delivery of scalable and reliable data solutions. Contribute to code reviews and engineering best practices. Collaborate with technical stakeholders to deliver business requirements. Support ongoing platform development and improvement initiatives. Technical Environment AWS Snowflake dbt Required Skills & Experience Strong Data...

Data Engineer Location: London (1 day per month onsite) Duration: Initial 6-Month Contract Pay Rate: £550- £590 Outside IR35 The Opportunity We 're supporting a growing loyalty and rewards organisation that is expanding its data engineering capability as part of a wider investment in its data platform. They are seeking experienced Data Engineers to build and enhance cloud-based data solutions, working alongside senior technical leadership within a modern data environment. Key Responsibilities Develop and maintain data pipelines and data products. Build and optimise data models within the data platform. Support the delivery of scalable and reliable data solutions. Contribute to code reviews and engineering best practices. Collaborate with technical stakeholders to deliver business requirements. Support ongoing platform development and improvement initiatives. Technical...

We are hiring for - Senior Data Engineer (Snowflake ) Work location - 25 Walbrook London Duration- Contract (outside Ir35 ) • Responsibilities: o Build and maintain data pipelines o Design and optimize Snowflake data models o Implement data quality frameworks o Integrate Salesforce, transactional, and external data • Key Skills: o Azure Data Lake & ADLS Gen2 o Snowflake (data modeling, ELT) o SQL, Python o dbt, Airflow (or similar) o Salesforce data integration o Azure Data Factory o Databricks & PySpark o SQL & Self Joins o Snowflake & Snowpipe o DBT, (ref(),YAML profiles) o Apache Airflow o ETL/Data Warehousing Architecture