software developer jobs in London

As an award-winning, industry-leading Prop Tech company, we develop pioneering tech platforms for building management systems’ control and communication, optimising environments for people and the planet. Currently a rapidly growing and successful scale-up, we seek talented and highly motivated individuals ready to help us elevate our business to the next...

Job Overview At Mustard, we value quick delivery and real‑world impact over perfect code. If you thrive on solving problems quickly and enjoy a flexible, outcome‑focused culture, this role could be a great fit. What You’ll Work On Expand access to new liquidity providers using advanced web‑scraping and reverse‑engineering techniques. Develop and...

Job Description Spirit It Services, specialises in groups for each phase of the product application lifecycle, we can offer end-to-end support or individual benefits as per the client's tendency and financial plan. Each team includes talented experts with broad experience along with industry accreditations. They work intimately with clients to strategize,...

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions.Developers are encouraged to constantly develop and learn new skills. Pair programming supports...

Software Developer Remote UK Our talented people are creating the technology of the future From scheduling to maintenance to keeping people safe, 2.7 million people are helped by our software daily. Technology makes it possible; people make it happen and you could be part of that. The Tracsis Group has grown rapidly, diversifying into related transport...

Job Title: Software Developer Job Reference: JB-9594 Job Location: London,SW3 6EP Job Description We are seeking a talented and motivated Software Developer to join our growing engineering team. In this role, you will design, develop, test, and maintain high-quality software solutions that power our products and services. Key Responsibilities Design, build,...

AfterQuery is looking for experts with experience in software engineering, computer science, or app/web development to help train and evaluate AI models. This is a remote, project-based role: qualify once through a single assessment and receive ongoing project matches spanning code review, evaluation, and original task creation. Pay ranges from $50 to...

Software Developer Role 📍 Remote Role, London Head Office 💷 £75,000 – £90,000 + Benefits 💼 Permanent | Full-Time I'm currently working with an award-winning technology-led consultancy that is looking to add an experienced Software Developer to its growing Technology team. This is a great opportunity for a developer who wants to work on a...

We are looking for a strong full-stack Developer, with solid .NET (C#) skills and experience in TypeScript and a modern web framework, to play a central role in the ongoing development of our core business systems. This is a hands-on development role working closely with other Developers, Business Analysts, Testers and Product Owners to design, build and...

Salary: up to 200k + bonus Summary This is a superb opportunity for a proactive and pragmatic coder to join an award-winning, tech-savvy algorithmic trading firm in London. Specialists within electronic market-making in FX, equity, fixed income and commodity markets, they have one of the best names in the industry and attract the top talent. As part of the...

We’re recruiting for a Software Developer to join an established business in Ipswich and contribute to the ongoing development of its internal applications, integrations and digital platforms.This is a broad development role combining C#.NET software development with SQL, APIs, Azure and Power Platform technologies. It will suit someone with a strong...

Senior Software Developer (Mobile) Location: London- Hybrid Duration: 12 months + Our Client is hiring a Senior Software Developer to help design and build mobile solutions that make a real difference. If you enjoy taking ownership, mentoring others, and delivering high-quality software through agile ways of working, this could be a brilliant next...

The best software solves real problems, and you'll be helping build technology that makes construction sites safer and asset management easier. As a Software Developer, you'll turn ideas into practical solutions while developing your technical skills alongside an experienced team.You'll be joining a small, supportive development team creating...

We are looking for a strong full-stack Developer, with solid .NET (C#) skills and experience in TypeScript and a modern web framework, to play a central role in the ongoing development of our core business systems. This is a hands-on development role working closely with other Developers, Business Analysts, Testers and Product Owners to design, build and...

An exciting opportunity for a Graduate Software Developer to join a trading firm, building the technology that supports its trading and research activities. Working alongside experienced developers, researchers and traders, you'll help develop high-performance applications used in live sports trading environments. You'll see your code applied to real...

Fasanara Digital is a quantitative investment team applying a scientific, high frequency investment style in digital assets, seeking to achieve exceptional risk-adjusted returns for our investors. We were founded in 2018 and have grown to a 30-person strong team, managing over $500m USD in a basket of fully delta-neutral trading strategies. Our team members...

About the roleWe're looking for a Junior Software Developer with hands-on experience across the MERN stack, Python, and databases, along with foundational exposure to machine learning and cloud platforms. The ideal candidate is comfortable working across the full stack and has practical (not just theoretical) experience applying ML in a real-world or...

Senior Software Engineer with AI We're recruiting for a sustainability business investing in its next generation of digital products. They're looking for a talented Senior Developer who combines strong development skills with practical experience of AI-assisted coding, generative AI and intelligent automation. What you'll get involved in Build cloud...

Founded in 2011, Fasanara is a global asset manager and technology platform. We manage c. USD 6 billion AUM (as of December 31, 2025) in Fintech strategies on behalf of pension funds and insurance companies in Europe and North America. With c.110 employees globally, we are a pioneer investor in Fintech Lending, enabling Real Economy Impact. Fasanara manages...

We’re looking for a passionate and experienced Senior Software Developer to join one of our agile squads. In this role, you’ll be hands‑on in designing, building, and enhancing features across the PCI Pal product suite, while also setting the technical standard through mentorship, code reviews, and driving engineering best practices. You’ll...