56 data engineer jobs found in London

Junior Data Engineer - Public Sector Contract: Initial 7 months (extension possible) Rate: £310 per day, Inside IR35 Location: Remote with travel to Waterloo (2-3 days per month) Security Clearance: SC‑eligible (5 years UK residency required) I am working with a key consultancy delivering a major UK public sector programme and are looking for a Junior Data Engineer / Scientist to join a mixed delivery team building and operating secure, reliable data platforms that support critical public services.This role is designed for someone early in their data career who wants to develop strong engineering fundamentals in a real production environment. The role - a junior, generalist data engineering position. This is an engineering‑led role, not a specialist or senior position. The team is ideally looking for a generalist in their first few years within data engineering or data science, who is building breadth across data platforms, pipelines and operations. You'll focus on:...

The Role We are partnering with a global tech and media giant to hire a Senior Data Engineer. You will build and scale the massive data pipelines that track how millions of users interact with the platform across smart TVs, gaming consoles, and major social media apps. What You'll Do Architect, build, and maintain complex, high-volume data pipelines. Act as a technical leader to set engineering standards and best practices. Partner with Product Managers and Data Scientists to turn business requests into reliable data models. Mentor junior engineers and optimize cloud infrastructure for cost and performance.What You Need Heavy, hands-on coding experience with Scala, SQL, and dbt. Deep expertise in GCP (Google Cloud Platform) and cloud-based data architecture. Proven ability to build systems that can process massive amounts of data efficiently. Strong communication skills to lead projects and align with cross-functional teams.Logistics Location: 100% Remote within the UK. Hours:...

Role Title / Position: Data Engineer III Type : Contract Duration:12 months Location: Bromley or Chester Job Description: Required qualifications : • Knowledge of professional software engineering & best practices for full software development life cycle, including coding standards, software architectures, code reviews, source control management, continuous deployments, testing, and operational excellence • Experience working on and delivering end to end projects independently • Experience building/operating highly available, distributed systems of data extraction, ingestion, and processing of large data sets • Experience with data modeling, warehousing and building ETL pipelines • Experience in at least one modern scripting or programming language, such as Python, Java, Scala, or NodeJS • Experience as a data engineer or related specialty (e.g., software engineer, business intelligence engineer, data scientist) with a track record of manipulating, processing, and extracting...

Your new company Working for a renowned financial services organisation Your new role We are seeking a Data Engineer to support the replacement of a legacy ETL tool with a modern Apache Spark based data platform. This is a hands‑on engineering role focused on building and supporting Spark jobs, with an emphasis on performance, reliability, and scalability. The role sits within a small Agile delivery team of four engineers (two onshore and two in Shenzhen), working closely with a Senior Data Engineer. You will be responsible for development work, sprint delivery, demos, documentation, and stakeholder engagement. This position suits a mid‑level engineer with strong Spark development experience rather than design, infrastructure, or management responsibilities. What you'll need to succeed Strong hands‑on experience with Apache Spark - Writing and tuning Spark jobs /PySpark development experience. Strong experience working in with containerised environments using Kubernetes....

Your new company Working for a renowned financial services organisation Your new role We are seeking a Data Engineer to support the replacement of a legacy ETL tool with a modern Apache Spark based data platform. This is a hands‑on engineering role focused on building and supporting Spark jobs, with an emphasis on performance, reliability, and scalability. The role is focused on building nonperformance Apache Spark jobs, with a strong emphasis on performance optimisation. It is primarily Java‑based, with Python strongly encouraged; experience across Java, Python, and Scala is ideal, with Java and Python being the preferred combination. The role sits within a small Agile delivery team of four engineers (two onshore and two in Shenzhen), working closely with a Senior Data Engineer. You will be responsible for development work, sprint delivery, demos, documentation, and stakeholder engagement. This position suits a mid‑level engineer with strong Spark development experience...

Principal AI / Data Engineer (Contract): Length: 3 months initally (extension is likely)  Start Date: ASAP  Location: London, Hybrid (1 day per week)  Pay Rate / Determination: £(Apply online only) p/d | Outside IR35  About: Opus is supporting a UK-based digital consultancy partnering with organisations to design, build and scale high‑impact digital and AI‑driven products, with a strong people‑first culture. The role:  A hands‑on Principal AI / Data Engineer contract to assess, shape and deliver improvements to a live AI platform across two critical workstreams. You'll be responsible for: Assessing the current AI and data platform and define clear, actionable improvements Lead on delivery across two workstreams, aligning product, data and engineering Improving the natural language data exploration platform, focusing on trust and semantic consistency Designing and implementing scalable, multi‑source data pipelines and architecture About you: Strong experience with Python and...

Senior Data Engineer – (Tick data, Time-Series; kdb+ / Q ) 3-6 months initially. London 3 days onsite   Are you a Data Engineer with a background in systematic trading who has worked with granular tick market data? Have you built pipelines to allow tick data to be ingested into a time series tech stack utilising kdb+ and Q? If so keep reading!   Certain Advantage are recruiting on behalf of our London based trading client for a Data Engineer to focus on building a scalable data platform for algorithmic trading.   You’ll Identify and implement solutions for Quants and Traders, providing data that will be used to improve strategies performance and produce clients TCA, pre- and post- trade analytics.   Your Project Work: Identify and implement solutions to provide data that will be used to improve strategies performance and produce clients TCA, pre- and post- trade analytics. Work with business Stakeholders to build new and maintain existing real-time and historical data services and...

Your new company Working for a renowned financial services organisation Your new role We are seeking a Data Engineer to support the replacement of a legacy ETL tool with a modern Apache Spark based data platform. This is a hands‑on engineering role focused on building and supporting Spark jobs, with an emphasis on performance, reliability, and scalability. The role is focused on building nonperformance Apache Spark jobs, with a strong emphasis on performance optimisation. You shall be running Spark workloads in containerised environments using Kubernetes and programming skillset in Python/ Scala or Java is also a required skillset. The role sits within a small Agile delivery team of four engineers (two onshore and two in Shenzhen), working closely with a Senior Data Engineer. You will be responsible for development work, sprint delivery, demos, documentation, and stakeholder engagement. This position suits a mid‑level engineer with strong Spark development experience rather...

Lead Analytics Engineer / Senior Data Contractor **London / Hybrid | Contract | SaaS / Product-Led Environment** I'm currently supporting a fast-growing SaaS business with an urgent requirement for an experienced **Lead Analytics Engineer / Senior Data Contractor** to help drive and stabilise their analytics capability. This is a highly hands-on role,ideal for someone who enjoys working across **data engineering,analytics,and commercial insight**,with strong exposure to modern cloud data stacks and stakeholder-facing delivery. You'll be joining a fast-paced environment where data is central to product,commercial,finance,and leadership decision-making. ## The Role You'll take ownership of analytics delivery across the business,helping to ensure data is trusted,accessible,and directly supports strategic decisions. Key responsibilities include: * Designing and maintaining scalable **data pipelines and analytical datasets** * Building and refining **SQL / dbt...

Senior Data Analyst Bromley - hybrid 12 month contract - extension possible Inside ir35 Role Overview We are looking for a Data Analyst to join our team and support the programme through meaningful, data driven insights. This is a highly collaborative role, working alongside business teams, technology partners, and data engineers to ensure data is accurate, well understood, and used effectively. Job Description Key Responsibilities: Data Collection: Gather data from internal databases, data warehouses, APIs, spreadsheets, and external sources, ensuring data is obtained in a usable, structured format. Data Cleaning & Preparation: Identify and correct errors, inconsistencies, and missing values. Transform raw data into analysis ready datasets (e.g., normalization, feature creation). Reporting & Visualization: Build dashboards and visual reports using tools like Power BI, Tableau, or Excel. Data Modelling & Forecasting: Create simple predictive models or...

Control Systems Engineer We are seeking an experienced C&I Engineer with a strong systems‑engineering background to support major projects across the energy sector, including power generation, CCGT, utilities, oil & gas, and process industries. This role is ideal for an engineer who thrives in technically demanding environments and has hands‑on experience developing and delivering advanced control system solutions for large‑scale energy assets. The ideal candidate will bring practical expertise in control system architecture, control philosophy, and control narrative development, along with familiarity with leading DCS platforms such as Emerson Ovation, Emerson DeltaV, or Siemens SPPA‑T3000. Key Responsibilities Develop Control Narratives, Control Philosophy documents, and Functional Logic Specifications for energy‑sector automation systems. Design robust control system network architectures, including Ethernet/IP, Profinet, Modbus, and redundant industrial networks....

Title: Critical Environment Field Service Engineer Location: London, UK (LON26) Shift: Mon- Friday : 7 AM to 7 PM Onsite : Atleast 2 days per week Start Date: ASAP Duration: 30th June 2026 (view for possible 18months) Contract type: PAYE Data Centre Operations • Ensures compliance with data centre business units and service-level policies. • Engages with appropriate teams and resources to execute tasks or projects. • Manages programs associated with area of responsibility. • Follows and adheres to safety and security policies and procedures. Reports immediately any safety or security issues or concerns. • Participates in Root Cause Analysis (RCA) process as appropriate. • Lead or participate in incident response activities for critical infrastructure failures, ensuring minimal downtime and effective recovery processes. • Proactively identify potential risks or vulnerabilities in the critical environment and implement strategies for mitigation. • Manage relationships with external...

Senior Integration Engineer (Azure) - Contract 🚀 Location: London | Work Mode: Hybrid(2 days in office) | Duration: May - December 2026 Ready to build the digital bridges that power the UK's economy? We are a leading UK economic development bank on a mission to make finance markets work better for SMEs. By unlocking billions of pounds in funding, we support economic growth and job creation-and we need your expertise to make our vital systems seamlessly connect. Your Mission Join our brand-new, cross-functional Integrations Team to architect, build, and run critical Azure APIs, system-to-system interfaces, and middleware. You won't just write code; you will shape modern engineering practices, tackle complex integration challenges like error handling and idempotency, and leave a lasting legacy by actively mentoring our permanent engineering team. What You Bring Integration Expertise: 5+ years of software development experience building robust APIs (REST, SOAP, JSON, XML) using...

A Council in London is seeking a Contract Senior Cybersecurity Engineer for 6 months. With the strategic deployment of an outsourced Security Operations Centre (SOC) that leverages Splunk and CrowdStrike, the Senior Cyber Security Engineer role is a key addition to our team to maximise the timeline and investment. The ideal candidate will be a technical expert in CrowdStrike for endpoint protection and Splunk for security telemetry, capable of turning raw data into actionable intelligence. Key Responsibilities Endpoint Strategy: Lead the deployment, policy configuration, and maintenance of the CrowdStrike Falcon SIEM Mastery: Work with our SOC partner to architect and optimize Splunk dashboards, alerts, and data models to identify sophisticated threats. Incident Response: Serve as a technical escalation point for high-priority security incidents, utilizing EDR and SIEM tools for rapid containment. Automation: Develop "SOAR" workflows (Security Orchestration, Automation, and...

Senior Cyber Security Engineer (Contract) Hybrid | 6-Month Contract | Start: ASAP Day Rate: 500p/d inside The Opportunity We're looking for a Senior Cyber Security Engineer to join a forward-thinking public sector environment at a critical point in its cyber maturity journey. With a newly implemented outsourced Security Operations Centre (SOC) powered by Splunk and CrowdStrike, this role is key to maximising both investment and capability. You'll act as the senior technical lead-optimising tooling, strengthening detection and response, and upskilling the internal team. This is a hands-on, high-impact role suited to someone who can hit the ground running and elevate an evolving security function. Key Responsibilities Endpoint Security Leadership: Own deployment, configuration, and optimisation of CrowdStrike Falcon SIEM Optimisation: Partner with the SOC to enhance Splunk dashboards, alerts, and data models Incident Response: Act as escalation point for high-priority...

Job title: Network Engineer / Network Designer (Contract) Duration: 3 months initially, with potential extensions Location: London (Hybrid) Role Overview A Network Engineer / Network Designer is required to deliver project-based network and security changes within a large, distributed retail organisation. This role focuses solely on project delivery, with no BAU or operational support responsibilities. The contractor will work under general direction, taking responsibility for their own deliverables and ensuring that all design output, configuration artefacts, and documentation updates are accurate, consistent, and aligned with established standards. The work will involve contributing to network designs, implementing planned configuration changes, and updating documentation across hybrid cloud and on?premises environments. Technologies include Cisco ACI, Juniper Mist, Fortinet FortiGate, Palo Alto Networks, Zscaler (ZIA/ZPA), Azure networking, F5 LTM, and automation tooling...

Forward Deployed Engineer - Contract Morela is supporting a fast-growing AI start-up in hiring multiple Forward Deployed Engineers to work directly with customers, embedding into their environments to design, build and deploy high-impact AI solutions. This is not a back-office engineering role. You will be on the front line, translating ambiguous business problems into working AI systems, often under real-world constraints and with limited runway for iteration. If you are more comfortable shipping solutions with clients than sitting behind internal tickets, this is for you. WHAT YOU'LL BE DOING Work directly with clients to understand their business challenges and translate them into scalable, working technical solutions Design and deploy AI and ML systems in production customer environments Rapidly prototype, iterate and refine solutions based on real user feedback in real time Integrate AI models into existing client infrastructure and workflows Act as a trusted technical...

C++ Engineer Certain Advantage are hiring for a C++ Engineer based in London. This role is on an initial contract till the end of the year and is hybrid. The company We’re working with an organisation that operates globally, helping power homes, transport, and industries with the energy they depend on every day. The role: Implement solutions using the provided exchange SDKs in different languages such as C++, Rust, Python, Typescript Write software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as FIX, Websocket or HTTP requests Optimize exchange communication through kernel bypass, optimizing TLS or the connection handling to an exchange Implement trading algorithms based on requirements provided by traders and quants Acquire and develop the necessary trading knowledge to successfully translate the requirements into actual software implementation Continuously improve the...

Certain Advantage are recruiting on behalf of our Trading client for an AI Engineer on a contract basis for 6-12 months initially in London. This will require some onsite days in Central London during the week. We are seeking Engineers skilled in python with a strong focus on GenAI AI and LLMs to lead the integration of cutting-edge language technologies into real-world applications. If you’re someone passionate about building scalable, responsible, and high-impact GenAI solutions then this could be for you! We’re looking for Engineers offering competent core technical skills in Python Programming, Data Handling with NumPy, Pandas, SQL, and use of Git/GitHub for version control. Any experience with these GenAI Use Cases would be relevant and desirable; Chatbots, copilots, document summarisation, Q&A, content generation.   To help make your application as relevant as possible, please ensure your CV demonstrates any prior experience you have relating to the below;     System...

Senior Backend Engineer (Platform & Cloud) Location: London (Hybrid) Contract: 6–12 months Rate: Negotiable (DOE) We’re working with a global enterprise organisation that is expanding a centralised engineering function supporting multiple product teams across an international portfolio. They’re looking for a Senior Backend Engineer to join a core platform team responsible for building shared services, libraries, and cloud-based functionality used across a wide range of internal products. This is a highly collaborative role, working directly with senior engineers and technical leaders across multiple time zones, helping shape the foundations of how teams build, scale, and reuse backend capability. The Role You’ll be part of a central engineering group building common functionality for distributed product teams. Early work will focus on: Abstracting existing codebases into shared Python libraries Developing data-driven solutions using PySpark and DataFrames Building and...