1 to 25 of 32 Remote/Hybrid Software Engineer Jobs in the City of London

Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) ***This is a hybrid role, 3 days remote and 2 days in the office*** Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background, REC Solutions … Limited does not discriminate in regards to age, gender, national origin, religion or any other basis. An excellent opportunity has arisen for a Senior Software Engineer C++to join a friendly team my client are a well-established exchange (FinTech, Financial Technology) based in the City. My client ...

Software Engineer (UX Engineer) Role: full-time, permanent. Office: London, Hybrid working. At CPC Systems, our vision is to be “the best at delivering safe, high-performing infrastructure”. Our people are dedicated to meeting our clients’ needs, unified by a core set of values and behaviours … that bring the right knowledge, experience and a fresh approach to unlocking every project’s full potential. We build software to be used in control rooms to assist the operational running of some of the largest rail operating companies in the UK and overseas. We are currently looking ...

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 … your family, including mental health Travel Insurance Charitable giving Gym membership for you and your family Flexible holiday scheme Your role: As a Software Engineer you will design, develop and deliver a range of transformational projects for clients, mainly within the financial services sector and with a focus ...

Software Engineer London/Remote | Perm Role £80,000 - £100,000 Harrington Starr has partnered with a fast-growing fintech that’s transforming how businesses manage foreign exchange and treasury operations. Their technology enables clients to access institutional-grade execution, automate manual workflows, and gain greater transparency across … product offering and deliver cutting-edge solutions that help clients manage risk more effectively. The Role This is an excellent opportunity for an experienced Software Engineer — ideally with a background in financial technology or FX — to join a high-performing engineering team within a scaling fintech. ...

Software Engineer London | Remote | Perm Role £70,000 - £100,000 Harrington Starr has partnered with a fast-growing fintech that’s transforming how businesses manage foreign exchange and treasury operations. Their technology enables clients to access institutional-grade execution, automate manual workflows, and gain greater transparency across their … product offering and deliver cutting-edge solutions that help clients manage risk more effectively. The Role This is an excellent opportunity for an experienced Software Engineer — ideally with a background in financial technology or FX — to join a high-performing engineering team within a scaling fintech. ...

role of Java Software Engineer involves designing, developing, and maintaining robust Java-based applications. This position is ideal for those with a strong technical background and a passion for delivering high-quality solutions within the business services industry. Client Details The hiring organisation is a well-established … company, they focus on delivering innovative technology solutions to their clients, ensuring efficiency and excellence in every project. Description Develop and maintain Java-based software applications to meet client requirements. Collaborate with cross-functional teams to design and implement efficient technical solutions. Perform code reviews to ensure high-quality ...

Senior Backend Software Engineer | AI Products Location: London (Hybrid) Defining how AI and finance work together, securely, intelligently, and at scale. We're partnered with a fast-growing AI company building a highly secure Generative AI platform for the financial services sector. By combining LLMs, agentic … leading financial institutions unlock efficiency, improve decision-making and reduce risk. As they continue to scale, they're looking for a Senior Backend Software Engineer to help build and evolve the backend systems that power their AI platform. You'll work on scalable APIs, distributed systems, asynchronous workflows ...

Senior Backend Engineer | Senior Software Engineer | Python | Remote UK 💰 £90,000 - £110,000 🏠 Fully Remote (UK) 💻 Python, Flask, AWS, PostgreSQL, Docker 🚀 High-growth consumer platform scaling rapidly We’re partnered with a high-growth consumer tech platform looking to hire a Senior Backend Engineer into … continuous deployment Consumer product used at significant scale If you’d be interested in hearing more, feel free to reach out directly. Senior Backend Engineer | Python Engineer | Backend Developer | Remote ...

Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Front End Software Engineer to join our team! We're particularly looking for someone with strong front end engineering and Typescript experience and with some experience … office in London (Hammersmith). We're excited to have you contribute to our mission! Responsibilities: As a Safe Intelligence Front End Software Engineer, you will: Make key contributions to software development on our TypeScript-based frontend systems, primarily utilizing React to craft intuitive and highly functional ...

Software Engineer (Full-stack + AI) London · Old Street · Onsite (5 days/week) · Skippr AI Direct applicants only (no agencies) Hey, we're Skippr AI 👋 Your new interface is an agent. We build an AI agent, led by voice and vision, that operates software for people … vision, balancing moving fast now with scaling later. This role is for you if You have at least 4 years of experience as software engineer. You're a 0→1 builder who has shipped to production — ideally rapidly shipping apps and building scalable systems in containerised environments. You have ...

Software Engineer IV – AI Research & Machine Learning Location: London, UK (Hybrid – 3 days onsite, King's Cross) Duration: 6-Month Contract (Extension Possible) Start Date: ASAP About the Opportunity We are partnering with a leading global technology organisation that is driving cutting-edge research in Artificial Intelligence … infrastructure for Large Language Models (LLMs). Develop and execute complex experiments involving large AI models and datasets. Collaborate closely with research scientists and software engineers. Translate research ideas into production-quality Python code. Contribute to the development of cutting-edge machine learning technologies. Required Skills & Experience Strong experience ...

Java Software Engineer Location: London Working Model: Hybrid (2 days in-office) Base salary: £70,000 - £78,000 + Bonus We are seeking a highly skilled Full Stack Java Engineer to join a newly formed product engineering team focused on building AI-enabled workflow and automation solutions. … insurance and BPO sector, with a long-term vision to commercialise these platforms into external B2B offerings. This is an exciting opportunity for an engineer who enjoys building modern, cloud-native applications in a fast-paced, product-driven environment Team Overview The engineering team operates across the UK, India ...

Lead Software Engineer (Python) | Up to £110,000–£140,000 | London (Hybrid) High growth FinTech breaking into new markets and are now building out new teams to support this expansion. You will be a hands-on technical leader, owning architecture and delivery while still contributing deeply to backend ...

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/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 ...

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 ...

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/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 ...

Competitive + Benefits Recruitment Partner: Searchability About the Opportunity Searchability is partnering with a fast-growing technology consultancy delivering large-scale digital transformation and software engineering projects for enterprise clients. We are seeking an experienced Technical Leader with a strong Python background to lead multidisciplinary engineering teams across Frontend … Backend, DevOps and Design. This is a hands-on leadership role combining technical strategy, people management, stakeholder engagement and software delivery. This opportunity is ideal for a senior engineering leader who enjoys remaining close to technology while driving team performance, delivery excellence and client success. The Role ...

Lead Engineer/Head of Middle Office Engineering - Hedge Fund - London - Durlston Partners - Up to £400k TC The opportunity One of the more interesting funds in London right now is building out its middle office and wants someone to run it. You would own the macro trade lifecycle ...

Senior Backend Engineer | Climate Policy Radar Full time | 4-day workweek | Central London-Hybrid | £90k - £100k pa About us Climate Policy Radar is an independent non-profit building open, credible data infrastructure and AI-powered tools for climate, nature, and development action. Our data and tools help governments, researchers … data science (models and evaluation). Despite those splits, most of our work is cross-functional. We are looking for a Senior Backend Engineer to join our Application team. In this role you will work with our Product Managers to create new features, improve our existing system, and design ...