51 to 75 of 100 Software Engineer Jobs in Central London

Senior C# Engineer City of London (On-site) Permanent | £90,000 – £120,000 We’re partnered with an innovative proprietary trading firm in the City of London that is hiring a Senior C# Software Engineer . You’ll work on greenfield projects, cutting-edge technology, and play ...

Software Engineer – Java/Python London (On-site) This is a hands-on software engineering role within a systematic hedge fund where technology sits at the core of the business. The systems you build directly support trading, research, and core operations, and your work will have real … practice Contribute to modern engineering practices including CI/CD, testing, and monitoring What we’re looking for: 3–5 years of professional software engineering experience Strong Java development experience; Python experience or willingness to learn Ability to communicate clearly and work effectively in a team environment Background ...

Java Software Development Engineer in Test - FinTech - Java Remote (UK) | £80 - 110k Our client a cutting-edge fintech business is looking for a Software Development Engineer in Test (Java SDET) to strengthen their automated testing framework and drive software quality to the highest standards. This … testing to uncover edge cases and ensure robustness Pair with developers to enhance testing infrastructure for continuous delivery Proactively identify areas for improvement in software quality Essential Experience: Strong Object-Oriented Programming in Java Java must be your primary language you have a proven background with Proven background ...

Senior Software Engineer (React, TS, Node, Postgres, Redis) A well-backed core business systems tech scale-up based in Central London, building AI-powered workforce software for fast-growing businesses. Strong product culture, lean team, and a genuine focus on solving real problems. The Role Two senior … engineer positions available. You will work across a small, autonomous product squad with no dedicated product manager, engineers and designers share that responsibility collectively. Expect broad scope, high ownership and the ability to ship from day one. These are not squad-specific hires. The expectation is adaptability: moving across ...

Software Engineer - Quantitative Finance 40+ top trading firms seeking exceptional engineers. Multiple immediate openings. What you'll do: Build trading systems and market data infrastructure Develop quantitative research platforms and tools Optimize performance-critical financial applications Requirements: 2+ years software engineering experience Strong C++/Python/… based on experience Locations: London, Remote Focus: Trading platforms, risk systems, data infrastructure From high-growth prop firms to established systematic funds. Ready to engineer the markets? Apply now for confidential discussions. ...

What We Need Corpay is currently looking to hire a Senior Frontend Engineer within our Alpha division. This position falls under our Cross Border line of business and is located in London. In this role, you will contribute to the design and development of our eMoney and FX payment … technical objectives. Mentor junior engineers by providing constructive feedback, sharing knowledge, and fostering professional growth within the team. Assist in the documentation of software development processes, ensuring compliance with internal policies and industry standards. Utilise data handling and processing techniques to support efficient and optimised system performance. Support ...

Senior Software Engineer (React, TS, Node, Postgres, Redis) A well-backed core business systems tech scale-up based in Central London, building AI-powered workforce software for fast-growing businesses. Strong product culture, lean team, and a genuine focus on solving real problems. The Role Two senior … engineer positions available click apply for full job details ...

Software Engineer/Developer (Java Kafka API) London/WFH to £90k Are you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career? You could be joining a global technology consultancy. What ...

home-care networks. We are backed by leading healthcare and AI investors and headquartered in El Segundo, CA. The Role As a Senior Software Engineer, you will play a critical role in designing, developing, and maintaining both backend APIs and frontend applications that support sensitive healthcare platforms. ...

Backend Python Software Engineer Hybrid/Remote - 1 day every two weeks Help build the decision infrastructure powering the future of private markets. We're partnering with an ambitious early-stage AI software company building a next-generation platform used by Private Equity, Venture Capital, Private Credit ...

Fastest Growing Start-up in the UK | Defense | Senior Software Engineer | Rust We are partnered with one of the UK's fastest growing start-ups. They are a very technically focused group building cutting-edge decision making technology. The company's founding team has real pedigree, with backgrounds … years, and already have a lot of customers in the UK. On-site | London Up to 150,000 + Equity Senior/Principal Software Engineers: They're looking to add Senior/Principal Engineers to their team. The team are open to hiring pure backend engineers, or full-stack ...

looking for a Lead Software Engineer for a public sector organisation based in London, Manchester, Birmingham, Cardiff or the North East (hybrid) on an initial 12-month contract, paying up to £750 per day (Inside IR35, Umbrella). There is an expectation to attend the office ...

Fastest Growing Start-up in the UK | Defense | Senior Software Engineer | Rust We are partnered with one of the UK's fastest growing start-ups. They are a very technically focused group building cutting-edge decision making technology. The company's founding team has real pedigree, with backgrounds … years, and already have a lot of customers in the UK. On-site | London Up to 150,000 + Equity Senior/Principal Software Engineers: They're looking to add Senior/Principal Engineers to their team. The team are open to hiring pure backend engineers, or full-stack ...

platforms for some of the most sophisticated trading environments globally. Following significant growth within their trading practice, they are looking to hire a Principal Software Engineer to lead complex, high-impact client engagements across data, AI, and software engineering initiatives. This is a senior, highly visible position … modern cloud-native engineering, distributed systems, streaming technologies, and advanced data platforms. Key areas include: Real-time and event-driven systems Distributed data and software platforms Cloud-native engineering and architecture Streaming and intraday analytics platforms AI-enabled engineering solutions Modernisation of trading technology ecosystems This role would suit ...

Were working with a leading professional services firm to find an AI Software Engineer to join their in-house AI Lab. This is a core technical role - the person who helps design and build the foundation that AI solutions are built on. Engineering depth, systems thinking, quality. … decisions Working knowledge of enterprise AI platforms - Copilot Studio, Azure AI Foundry or equivalent - or the ability to get up to speed quickly Strong software engineering principles: system design, API and integration patterns, security fundamentals Python and SQL in practice, across both code-first and low-code platforms Comfortable ...

ABOUT US: Osprey is an award-winning UK-wide rapid charging network for electric vehicles (EVs). We’re looking for an experienced Software Engineer - 12m FTC Osprey operates over 1,400 rapid and ultra-rapid EV charge points, providing reliable infrastructure in a broad range of locations … experience has earned us multiple awards including best UK network in 2023, 2024, and 2025. KEY RESPONSIBILITIES Design, build and maintain scalable and reliable software applications. Write clean, efficient and well-documented code Troubleshoot, debug and optimise performance Collaborate with cross-functional teams to define and delivery product features. ...

Software Developer Key Technologies: C#, .NET, .NET Core, Azure, SQL London Perm Role | Hybrid Working Structure £50,000 - £60,000 Harrington Starr has partnered with a global Investment Bank who are looking to hire a seasoned Senior C# Developer with extensive experience developing from Back to Front Office trading ...

Were working with a leading professional services firm to find an AI Software Engineer to join their in-house AI Lab. This is a core technical role - the person who helps design and build the foundation that AI solutions are built on. Engineering depth, systems thinking, quality. ...

Role: Software Engineer (Rust) – Up to £200,000 + Bonus + Package Salary: Up to £200,000 + Bonus + Package Location: London (Hybrid Working) Skills: Rust as a main language This firm is an elite technology company with exceptionally high standards , known for previously setting world records … scalable systems using Rust Working alongside a handpicked group of top-tier engineers in the industry What else is in it for you? Software Engineers are treated as the company’s #1 asset Low attrition rate – people genuinely love what they do Very friendly, tight-knit engineering environment Flat ...

Build Engineer | Bazel 📍 London 🏠 Hybrid - 2 days in the office, 3 days wfh 💶 Up to £750/day - Outside IR35 📄 12 months contract, possible extensions 5V Tech are working with a fast-growing deep tech company building a completely new class of AI accelerator hardware and software from … first principles. They’re now looking for an engineer to take ownership of Bazel at scale and build the tooling infrastructure that powers the entire engineering organisation. This is a genuinely high-impact role in a greenfield environment, where you’ll help shape the build systems, developer workflows ...

Role: Embedded Software/Firmware Engineer Salary: £45,000 - £60,000 DOE Location: Hybrid – London Sponsorship is NOT provided Main skills we are looking for: Solid experience programming in Embedded C for microcontrollers (e.g. STM32, nRF52). Good understanding of electronics and how hardware and firmware work together ...

Senior Engineer (IC3) Full-time: Hybrid Location: London £80,000 - £100,000 per annum D.O.E Team: Backend (platform) Team - Python-focused Stack As a Senior Engineer (IC3) at Lunio, you lead the design and delivery of complex, cross-service features on our ad-fraud prevention platform. … Shape team practices & roadmap: contribute to technical strategy and sequencing, surface trade-offs and risks early, champion incremental delivery. Service Ownership: own the full software development lifecycle not only for your changes, but for all changes that affect a Service you have worked on, by monitoring PRs and success ...

Senior/Lead Backend Engineer (Python) - 2x roles Location: Hybrid/Remote (UK) Salary: Competitive + Benefits Recruitment Partner: Searchability About the Opportunity Searchability is partnering with a fast-growing technology consultancy delivering cutting-edge software, AI and cloud solutions for enterprise clients. We are looking … highly skilled Senior Backend Engineer to join a high-performing engineering team responsible for building scalable, secure and resilient backend systems. This role offers the opportunity to work on modern cloud-native architectures, AI/ML-powered platforms and large-scale distributed systems while helping shape the technical direction ...

Lead Backend Engineer Node.js, TypeScript, PostgreSQL, APIs, Microservices, Docker, Kubernetes, AI/LLM Integration. London, United Kingdom Permanent Role: Competitive Salary + Equity A fast-growing AI startup is looking to hire a Lead Backend Engineer to help build and scale the backend infrastructure powering its next-generation ...

owning technical direction, delivery, and day-to-day engineering leadership. The role requires strong domain partnership (risk advisory/consulting stakeholders) alongside pragmatic software engineering and architecture judgment. We will count on you to: Lead end-to-end delivery of CAT products (e.g., Concierge an agentic AI workflow tool … this role involves leading a team of 5 as well as contributing hands-on coding work. Proven experience as a Tech Lead/Lead Engineer delivering production software, including hands-on coding and code review ownership. Strong backend engineering skills (API design, data modelling, performance) and experience building ...