Backend Developer Jobs in London

Senior Python Developer - Banking London, UK | Hybrid | c.£ depending on experience Permanent Brief We're hiring a Senior Python Developer to join a high-performing engineering tea

Lead Backend Engineer Node.js, TypeScript, PostgreSQL, APIs, Microservices, Docker, Kubernetes, AI/LLM Integration. London, United Kingdom Permanent Role: Competitive Salary Equit

Lead Backend Engineer Node.js, TypeScript, PostgreSQL, APIs, Microservices, Docker, Kubernetes, AI/LLM Integration. London, United Kingdom Permanent Role: Competitive Salary Equit

Salary: £40,000 - 70,000 per year Requirements: We are looking for a data-savvy Python Software Engineer. We are seeking someone with strong Python development skills. Experience b

Salary: £40,000 - 70,000 per year Requirements: 3 years experience in full stack development with strong PHP/Laravel expertise Strong frontend development skills including Blade, S

Salary: £100,000 - 100,000 per year Requirements: Strong C# .Net Core backend development skills JavaScript experience, combined with Angular or React Experience with AWS and micro

Salary: £40,000 - 100,000 per year Requirements: Strong C#/.NET development experience Solid understanding of software architecture, design patterns and system design SC Clearance

Salary: £80,000 - 120,000 per year Requirements: 5 years of professional software engineering experience Strong Python expertise with backend development experience Proven experien

Salary: £60,000 - 90,000 per year Requirements: DV security clearance is essential. Proven experience as a backend or software engineer delivering production systems. Strong coding

Salary: £80,000 - 85,000 per year Requirements: Strong commercial Scala development experience Good understanding of functional programming principles Experience with AWS infrastru

Salary: £45,000 - 50,000 per year Requirements: 3 years of experience in software development Strong .NET experience Some front-end experience (React ideally; Angular/Vue is also a

Salary: £45,000 - 70,000 per year Requirements: Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, and modern UI patterns Expertise in C# .NET Core, REST APIs, and m

Salary: £55,000 - 70,000 per year Requirements: Backend development using Python with FastAPI or TypeScript with Node.js or Express Experience building microservices architectures

Salary: £45,000 - 70,000 per year Requirements: Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, and modern UI patterns Expertise in C# .NET Core, REST APIs, and m

Salary: £40,000 - 50,000 per year Requirements: Around 2 years of experience in software development Experience across frontend and backend development (.NET / React), Angular / Vu

Salary: £45,000 - 70,000 per year Requirements: A solid academic background with a degree in Computer Science or a similar subject. Substantial commercial software engineering expe

Salary: £80,000 - 120,000 per year Requirements: 5 years of professional software development experience. 2 years of professional experience in Python. 2 years in a senior software

Salary: £80,000 - 80,000 per year Requirements: Expertise in C# and the .NET framework, as well as desktop and cloud environments. Adaptability and a proactive, can-do attitude. Ex

Salary: £100,000 - 100,000 per year Requirements: We are looking for candidates with strong experience in C++ and/or Golang for backend development. You should have 7-10 years of e

Salary: £40,000 - 70,000 per year Requirements: A 2:1 or above in Computer Science Proficiency in Java Strong communication skills Active participation in competitive sports or inv

Responsibilities Senior Web Developer  Are you looking for a role where you can own architecture and not just tickets? Do you want to build mission-critical modelling software

Reed.ai is looking for a Senior Developer to join their team in Holborn, London. Overview Join a collaborative, forward-thinking team that values creativity, experimentation, and i

About The Role FDM is a global business and technology consultancy seeking a Senior Software Engineer to work for our client within the defence and national security technology sec

About The Role FDM is a global business and technology consultancy seeking a Java / Scala Developer to work for our client within the Investment Banking / Financial Services sector

Senior Software Engineer (DevOps) — Remote 70,000 – 75,000 per annum (UK) | Equivalent ranges available for other countries No sponsorship offered Our client writes code that actua

Senior Software Developer | C#/.NET | Fully Remote The Role SalamanderSoft builds user identity and account lifecycle management for the education sector. Our software manages 3 mi

Software Engineer - Active SC, Java, Microservices Up to 550 per day (Inside IR35) London / Remote 6 months My client is an instantly recognisable consultancy who require a strong

Senior Backend Engineer (Security Compliance) - 100% Remote The Role Join a high-autonomy team as a senior contractor architecting the next generation of our security compliance pl

Robert Half Technology are assisting a global market leading e-commerce organisation to recruit a Backend Engineer on a 6 months contract basis. Hybrid working - London based As a

Scala Developer London Hybrid - at least once a week in Central London Up to 85,000 DOE + Regular Pay Reviews + Healthcare + Life Insurance + Benefits Excellent opportunity for a S

Robert Half Technology are assisting a global market leading e-commerce organisation to recruit a React Developer on a 6 months contract basis. Hybrid working - London based As a R

Backend Python Developer (Azure AI) Location: Remote / Hybrid Type: Full-time Our client is a fast-growing consulting business building an AI-driven platform on native Microsoft Az

Role : Back End Developer Location : London,UK Type : Contract Job Description : The role is located in the Platform Developer Experience (PDX) tribe within the Platform Mission. T

Backend Python Developer (AI) - Remote - UK - excellent opportunity to join this innovative and fast-growing AI tech. organisation! Skills/experience 2+ years solid commercial Pyth

Python Developer (Mid-Level) We’re looking for a Python Developer to join our analytics-focused backend team. You’ll help build and evolve a SaaS platform that handles complex data

Avanti is working with an exciting early-stage 5-person FinTech startup based in London that is about to launch its first product in the embedded finance space. Their platform help

Backend Python Engineer, AI & Data London / Remote (South East based, occasional travel to London) 45,000 - 55,000 DOE We are working with an exciting AI-first engineering firm

Looking to build ultra-high-performance systems used by millions, while working fully remote in one of the most exciting spaces in tech? Software Engineer (C++) - Leading Crypto Tr