python backend developer jobs in City of London

Backend Software Engineer - Node.js & AWS (Tech4Good) Location: London (3 days in the office) Contract Type: Permanent Salary: Up to £100,000 (DOE) plus stock options, private medical/dental, and £1,200 L&D budget Work with a close-knit engineering team in a high-performing culture built on trust, clarity and psychological safety Take ownership of event-driven architecture using Node.js,...

Job Description We're working with a rapidly growing Series A startup backed by top-tier VCs who are seeking highly skilled Software Engineer / Backend Engineer with deep expertise in backend development. This company is revolutionising how software is built and deployed and is at the forefront of AI-powered automation - they're creating innovative solutions that fundamentally change the...

Backend Developer / Software Engineer (TypeScript Node.js) London / WFH to £100k Check all associated application documentation thoroughly before clicking on the apply button at the bottom of this description. Are you a senior technologist looking for an opportunity to progress your career in a hands-on role where you can make an impact? You could be joining a scaling tech company that has...

Job Description Senior Python Developer – Contract Location: Remote / Hybrid from London Contract Length: 12 months (extension likely) Day Rate: Competitive / Market-leading The Role We’re seeking a Senior Python Developer to work on a 12 month contract role to work on scalable, high-quality software using modern Python technologies. You’ll be part of an experienced engineering team...

Senior Python Developer Team Lead Location:Remote (UK-based) Check below to see if you have what is needed for this opportunity, and if so, make an application asap. Salary:£60,000 £70,000 per annum Were recruiting on behalf of our client who are in EdTech supporting schools across the UK. The business develops cloud-based solutions that help schools use technology and data to improve...

Senior / Staff Python Developer - FULLY REMOTE High-growth AI Insurance Startup Make sure to read the full description below, and please apply immediately if you are confident you meet all the requirements. We're working with a well-funded, fast-scaling AI company building a highly ambitious product at enterprise scale. They're now looking to add Senior and Staff-level Python Developers to...

Job Description A well-funded, high-growth tech company is building the next generation of automation tools—reimagining how complex, manual work gets done in the financial services world and beyond. They’re now looking for a Python Developer to help design and build intelligent systems that make that future a reality. Role: Senior Python Engineer Salary: £65,000 - £75,000 Location: Central...

Job Description Lead Backend Developer – Node.js, TypeScript, Kafka - up to £80k Leading E-commerce Brand | Up to £80,000 | Hybrid (2 days/week in London) A leading e-commerce client is looking for a Lead Backend Developer to help shape the technical direction of a highly scalable, event-driven platform. This role combines hands-on development with technical leadership, working in a Node.js,...

Job Description Senior Software Engineer (Python) – Contract | Outside IR35 💷 £550–£650/day | ⏳ 6 months+ | 📍 Paddington (3 days onsite) We’re partnering with a well-funded, fast-scaling AI & tech upskilling platform that works with 1,500+ organisations to help people build real-world skills in data, AI, and software engineering. This is a chance to join a high-calibre product engineering...

Affinity Labs: Founding Engineer (Backend) At Affinity Labs, we’re building the future of company creation, a full-stack AI venture studio that partners with content creators to co-found authentic, scalable software businesses. By combining AI-native development with creator-led distribution, we're pioneering a new model of monetisation by to rapidly build, launch, and scale digital ventures...

You will join as a more junior member, as part of a small team designing and implementing a central platform for Backtesting, Pricing, Risk and Performance, to be used across all Funds and Investment teams. Finance experience is not an essential criterion.

Benefits ~9% pension contribution ~ Stock Options ~ Health Insurance etc This is your chance to perform the job you love and make a difference in society whilst doing it! Help this one-of-a-kind Social Good platform change the world by developing this one-of-a-kind eCommerce solution. The Company ~$120m VC-backed Scale-Up ~ One of the fastest-growing companies in the world ~ 'Fast Company' Most...

Job Description Paragon Alpha are working with a hedge fund famous for mid frequency equity trading, while also having a successful L/S Equity desk running strategies out of London. The desk need to hire two Quantitative Developers in London, to build signal generation frameworks, back-testing engines, and full stack trading apps. You would be on a specialised desk and partnering with traders...

Job Description Core Developer (Python) - Algo Trading Firm - London - Up to £350k+ TC (DOE) One of London's most impressive Algo Trading firms is looking for Engineering Wizards to join their team in London. Having arguably one of the best technology teams in the world, the firm is in a stage of hypergrowth, looking to deliver on its ambitious plans to be a leading liquidity provider in the...

A well-funded, high-growth tech company is building the next generation of automation tools—reimagining how complex, manual work gets done in the financial services world and beyond. They’re now looking for a Python Developer to help design and build intelligent systems that make that future a reality. Role: Senior Python Engineer Location: Central London (Hybrid) Build production-level backend...

Senior Software Engineer (Python) – Contract | Outside IR35#We’re partnering with a well-funded, fast-scaling AI & tech upskilling platform that works with 1,500+ organisations to help people build real-world skills in data, AI, and software engineering. This is a chance to join a high-calibre product engineering team working on systems that impact the learning and career outcomes of thousands of...

You will lead and deliver high profile software projects and champion best practices in software engineering, DevOps and cloud architecture across the wider technology team.

You will be an expert in your field - we are looking for software engineers with an expertise in Python, SQL and PostgreSQL. - Experience building APIs or distributed systems. - Bonus points for C++ - Experience leading on projects end-to-end with full ownership and autonomy.

Core Developer (Python) - Algo Trading Firm - London - Up to £350k+ TC (DOE) One of London's most impressive Algo Trading firms is looking for Engineering Wizards to join their team in London. The firm is renowned for its advanced tech and above-market-rate compensation (made ~40 of its staff millionaires in the last 2 years). In the role, you would be focusing on highly scalable distributed...

Job Description Senior Backend Developer – Node.js, TypeScript, Kafka - up to £70k Leading E-commerce Brand | Up to £70,000 | Hybrid (2 days/week in London) We’re partnering with a leading e-commerce business that’s scaling a modern, event-driven platform to support high transaction volumes and continued growth. They’re looking for a Senior Backend Developer to join a highly capable...