46,172 London jobs
Open tech roles based in London.
Senior DevOps Engineer
Senior DevOps engineer (individual contributor) on a five-person platform team at a global sports performance tech company, hybrid in London (3 days/week in office). Owns the AWS estate, Terraform IaC and CI/CD pipelines, with observability and embedding security scanning into pipelines.
DevOps Engineers
DevOps engineer at CGI's Space, Defence and Intelligence unit, building and maintaining secure, mission-critical platforms for UK government clients on-site in London five days a week. Work spans Kubernetes, Argo/Rancher, Puppet-based IaC, cloud and Linux, automating pipelines with Python, Java and Bash.
Lead Data Engineer
Hands-on data engineer role at consultancy Sahaj in London: building data platforms, ingestion pipelines and data models for clients, consulting on data strategy, and delivering production AI/ML systems. Stack includes Python/Scala, Databricks, Spark, HBase, Snowflake, cloud, and CI/CD.
Senior Data Engineer
Senior Data Engineer at Hometrack building the property data sets behind the UK's leading AVM used by top mortgage lenders. Day to day: designing ETL pipelines and data products on Databricks/Delta Lake with Python, SQL and PySpark. Hybrid role, 3 days a week from the Tower Bridge office in London.
Senior Backend Engineer (TypeScript AI) | Hybrid London
Senior backend engineer building a scalable FinTech platform with AI-powered data workflows at Client Server Limited in London (hybrid). Day to day: owning backend architecture for data access, processing and API delivery, with a focus on advanced TypeScript, AI integration and data pipelines with observability.
SC Cleared Backend Engineer CQRS/Event-Driven Hybrid London
Mid-level backend engineer joining an Advanced Resource Managers delivery pod in hybrid London, designing, building and maintaining scalable, distributed backend systems using event-driven architecture and CQRS patterns, implementing secure RESTful APIs in an Agile team. An SC security clearance is required.
Mid Backend Engineer
6-month contract (Inside IR35, up to £580/day) for a Mid Backend Engineer, London-based hybrid (2-3 days onsite). Building scalable, event-driven backend systems using CQRS and Event Sourcing, with backend work in .NET/Java/Python, Azure Service Bus messaging and REST APIs. Active UK SC clearance is essential.
Backend engineer for booking and payments
Backend engineer at Fresha in London, owning booking and payments features end to end on its SaaS operating system for the beauty and wellness industry. Day to day: designing, shipping (daily deploys behind feature flags) and operating distributed, event-driven backend services across multiple repos.
Senior Python Software Engineer - FinTech
Senior Python engineer at an established FinTech firm specialising in automated investment reporting. Leads projects end to end — hands-on Python (Django/FastAPI) backend development, data processing, architecture and technical ownership — while helping drive AI/LLM adoption. London hybrid: 3 office days, 2 WFH.
Senior Python Developer Data AWS
Hands-on Senior Python Developer / Backend Engineer at a scaling fintech that built a real-time energy trading platform for large industrial and commercial energy buyers. The role blends backend software engineering with data engineering using Python and AWS; based in London with WFH options, salary up to £90k.
Lead Python Developer — FinTech, Hybrid & Mentoring
Lead a small Python team building features for a core banking platform, including integrations with major banks like HSBC. Hybrid role based in a London office, working with Python, FastAPI, cloud services, and SDLC best practices.
Python developer in fintech
Lead a small tech team as a hands-on Python Developer/Team Lead at a profitable FinTech start-up, splitting time roughly 50/50 between architecture/design and people management. You'll build features and refactor a young core banking platform that integrates with HSBC, using Python, FastAPI and GCP in a hybrid Central London role.
Senior iOS Engineer – Live Auction & Commerce
Senior iOS engineer on the Instant Rips team building a live-break commerce and auction experience on Fanatics Live in London. Works day to day in a SwiftUI-first codebase using TCA, Swift concurrency, and Apollo GraphQL with a modular Tuist/XcodeGen setup, owning features end to end from API contracts to testing.
iOS Developer
iOS Engineering Team Lead for a fast-growing energy/EV technology business in London (hybrid, 3 days onsite): ~60-70% people leadership and delivery ownership of an iOS team, 30-40% hands-on Swift/SwiftUI work on a customer-facing app for EV customers. Salary up to £130,000.
Account Executive
Papaya Global is a rapidly growing, award-winning B2B tech unicorn with an ambitious mission to revolutionize the payroll & payments industry. With over $400M raised from multiple tier-one investors, our innovative…
Product Operations Analyst
About the Role: We are looking for a highly organised, analytical and proactive Product Operations Associate to help our Product team work more efficiently and effectively. You will work closely with Product Designers,…
Data Architect - Microsoft Fabric
Data Architect - Microsoft Fabric 3 Months London 3 Days per week £600-675 pay per day (Inside IR35) We're seeking an experienced Data Architect with deep Microsoft Fabric expertise to join a growing Data & AI practice…
Europe Strategy & Operations Director
About Faire Faire is a technology wholesale platform built on the belief that the future is local. Independent retailers around the globe collectively represent a multi-hundred-billion-dollar wholesale market that has…