46,144 London jobs
Open tech roles based in London.
Senior Data Engineer - FinTech
Senior hands-on Data Engineer at a scaling FinTech whose core product is a private equities / alternative investment management platform. You'll own data architecture, build Python and Airflow pipelines, and lead data governance and residency across international operations, working hybrid from the London office.
Microsoft Fabric Data Engineer
In-house data engineer on Workspace Group's tech team supporting and evolving its data and reporting platform. Day to day: building and optimising data pipelines, semantic models and reporting, and migrating existing workloads from Azure Synapse and Power BI into Microsoft Fabric, with governance and documentation. Key stack: Microsoft Fabric, Synapse, ADF, Power BI, SQL.
GenAI Full-Stack Engineer | Hybrid & POC to Production
Managing consultant at 83zero in London (hybrid) who designs and builds GenAI-enabled applications — translating business problems into technical solutions and taking POCs to production across backend, frontend and infra using Python/FastAPI, TypeScript/Express, React/Next.js and AWS/Azure; security clearance required.
Data Engineer: AI-Driven Data Pipelines
A Data Engineer in London who builds, maintains, and improves reliable data pipelines and transformations to support BI, reporting, analytics, and emerging AI-driven use cases within an agile delivery team.
Senior Data Engineer
Senior Data Engineer in London building and optimising data platforms using Snowflake, SQL and dbt, with mandatory Python/FastAPI skills. Day to day includes performance tuning large data sets, automated deployments via Azure DevOps/Octopus/Git, and delivering well-tested solutions for senior stakeholders.
Senior Data Engineer
Senior Data Engineer on a 6-month contract (£850/day inside IR35) for a global bank via GCS Recruitment, building and optimising enterprise-scale data pipelines and Databricks Lakehouse platforms using Python, Spark/PySpark, Delta Lake and SQL. Hybrid role based at Liverpool Street, London, 3 days per week on-site.
Data Engineer
Despite the 'Data Engineer' title, this is a Data & AI Product Owner role: the person owns the vision, roadmap, and backlog for Data & AI products, partnering with stakeholders to deliver GenAI, Copilot, RAG, and analytics use cases. Remote within the UK with travel to clients; stack spans Azure AI Foundry, Databricks Mosaic AI, MLflow, and Claude.
Full Stack Developer Engineer - Cyber DevOps
Remote 3-6 month contract (outside IR35, £450/day) building applications, automation and engineering tools for a Cyber DevOps team: Python/FastAPI backends and REST APIs, React frontends, PostgreSQL, AWS deployment and CI/CD pipelines across the full SDLC.
Hybrid Full-Stack Developer: Angular + Java Spring Boot
Permanent full-stack role in a London team: build modern frontends with Angular 14+ and robust backend services with Java, Spring Boot, and Node.js on SQL Server. Day to day includes collaborating with cross-functional teams on scalable, enterprise-grade apps, plus code reviews and testing, in a hybrid model with 3 days in the office.
DevOps engineer for Windows infrastructure
Senior DevOps engineer owning Windows Server infrastructure in AWS: patching, hardening, security events, CI/CD, Terraform IaC, PowerShell automation, monitoring, and on-call incident response alongside product engineering teams. Hybrid role based in London, three days a week in office.
DevOps Engineer AWS
Senior hands-on DevOps Engineer owning a global AWS cloud platform at a sports technology company (video analytics/scouting for clients like F1, NFL, NBA). Day to day: Terraform/Ansible infrastructure as code, CI/CD pipelines, observability, and embedding security/compliance (ISO 27001, SOC 2, GDPR). Hybrid London role, salary to £85k.
Staff Backend Engineer — AI-Driven Microservices
Fresha in London is hiring a Staff Backend Engineer to lead technical initiatives and build critical backend services in an autonomous cross-functional team, with a focus on architecture and code quality, migration to microservices, and integrations with AI agents.
Senior Backend Engineer - Go & Cloud APIs (Remote 3x/Week)
Senior backend engineer building, optimizing, and scaling data-driven platform APIs in Go with PostgreSQL and Redis, running on Kubernetes in GCP. Hybrid London role with 3 days working from home, collaborating with product and engineering on features, tests, and reliable infrastructure.
Data Engineer
Data Engineer at Transform, a UK consultancy serving the public sector, builds and maintains data pipelines, transformations, and data models supporting BI, reporting, analytics, and AI use cases within agile delivery teams. Core stack: SQL, Python, cloud (Azure/AWS), CI/CD, and modern data tooling like Databricks, Airflow, and DBT.
Data Engineer - Social
Mid-level Data Engineer at Fremantle (major TV/film producer) supporting its Social Video team: designing, building and optimising pipelines that consolidate YouTube/Meta performance, advertising, audience and revenue data into BigQuery, dbt and Microsoft Fabric for dashboards, monetisation insights and month-end finance reporting. Hybrid role based in London.
Market data engineer
Senior market data engineer (8-10+ yrs) building and maintaining C# feed handlers and downstream processing for equities, futures, options, FX, and fixed income data from vendors like ICE and Refinitiv. Works with SQL Server, Snowflake, AWS, and Python, supporting pricing, reconciliation, and migration of workflows to cloud infrastructure.
Lead Data Engineer
Lead a small data engineering team at an established UK digital consultancy delivering large-scale data and AI programmes for government, healthcare and enterprise clients. You stay hands-on building data pipelines at scale on Palantir Foundry, Spark and the cloud, set engineering standards, coach the team, and work directly with clients on scoping and proposals.
Staff Backend Engineer - Remote UK | Equity
Monzo is hiring a Staff Backend Engineer based in Cardiff, London or remote within the UK, to build scalable backend services and resilient distributed systems alongside cross-functional teams. Core stack includes Go/Java/C/Scala with Kubernetes, Docker, Kafka and AWS; equity is offered.
Staff Backend Engineer - Remote with Equity
Staff Backend Engineer (L60) at Monzo building scalable backend services in a product-focused environment, working with Go, Cassandra, Kafka, Kubernetes, Docker and AWS. Role offers flexible location and hours across the UK, with equity and relocation support.