20 of 20 Backend Developer Jobs in London

Robert Half Technology are assisting UK's market leading media organisation to recruit a Backend Developer on a 6-12 month contract basis We are looking for a talented Backend Developer who enjoys solving complex technical problems and is comfortable working across multiple programming languages … technologies. This is a generalist engineering role suited to someone who values adaptability, enjoys learning new tools, and can contribute across a variety of backend systems and services. You'll work closely with product, data, infrastructure, and frontend teams to design, build, and maintain scalable applications that power critical ...

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 Azure services. They are looking for a strong Backend Python Developer to join their team and play … work in a lean, high-impact environment where speed, quality, and innovation matter. The Role The successful candidate will: Design, build, and maintain backend services in Python , writing clean, maintainable, production-grade code. Develop and deploy AI-powered features using Azure-native services including Azure AI Foundry, Azure ...

Role: Backend Developer (Core Java) We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system architecture and will collaborate closely … small, agile team. This role plays a critical part in developing and enhancing a microservices-based platform that supports risk management and backend operations for both corporate and retail trading. You will also contribute to shaping the technical roadmap and improving the Software Development Life Cycle (SDLC). ...

Location: London (Hybrid) Type: Permanent Rate/Salary: Competitive Role Overview A leading financial organisation is seeking a Backend Java Developer to design and build robust backend services and applications within a high-availability, performance-critical environment. Youll work on modern Java services and microservices, delivering reliable … hybrid role based in London, with an expectation to attend the office three days per week. Key Responsibilities Design, develop and maintain backend services using modern Java (Java 17+), following secure coding and clean architecture principles. Build and evolve microservices and RESTful APIs to support scalable and resilient platform ...

Senior Backend Developer (Java | Financial Markets Platform) Locatio n: London, UK Industr y: Investment Banking Work patter n: Hybrid (2/3 days onsite) About the Role We are looking for a Senior Backend Develop er to join a global engineering team building a cutting-edge financial … play a key role in delivering scalable, low-latency solutions in a fast-moving environment. Key Responsibilities Design, develop, and deliver high-quality backend solutions from concept to production. Build and enhan ce real-time, event-driven applications. Collaborate with architects, product owners, and global engineering teams. Break down ...

Senior Backend Engineer (Kotlin/Go) | London - 3 days Salary range: £100,000 - £120,000 What if you could help build a digital bank used by millions of users globally? WeEngage are partnered with a global fintech unicorn that is quietly building some of the most ambitious financial infrastructure … Europe. They're scaling rapidly, investing heavily in engineering, and hiring Senior Backend Engineers to help shape the next phase of growth. You'll tackle the challenges of scaling high-volume distributed systems across multiple markets, helping shape architecture, reliability, and the future of financial infrastructure. This ...

Use your Java and AWS knowledge to build secure, scalable cloud-based services for medical researchers London with hybrid working; to £90k DoE + options and benefits This company is developing an AWS-based platform ...

Backend Engineer | Hybrid (3 days a week in London) | Up to £90,000 + Meaningful Equity | Python + Flask We’re currently working with a fast-growing, technology-driven startup that’s on a mission to transform personalised consumer experiences through innovation and scale. Their platform powers a multi … proprietary technology spanning e-commerce, data, and in-house operations. As they enter their next phase of growth, they’re looking for a strong backend engineer to join a high-impact team. They embrace modern, AI-assisted development workflows and treat agentic tools as a core part ...

Description: As a Specialist II in Backend Development, you will leverage your expertise in Java 17/21 and Java EE library migrations to enhance and upgrade middleware systems. Your role will involve working with Oracle 19C databases and ensuring seamless SOAP/REST integration. Key Responsibilities: Develop … maintain backend systems using Java 17/21 and the Spring MVC framework. Manage and execute Java EE library migrations and middleware upgrades. Ensure efficient database management and operations with Oracle 19C. Implement and maintain SOAP/REST integrations to support system interoperability. Collaborate with cross-functional teams ...

Lead Backend Engineer | Node.js, TypeScript, Microservices, APIs, Event-Driven Architecture, AI | London | Up to 130k salary + equity This is an opportunity to join a fast-scaling AI startup building an AI operating system for property management, automating up to 80-90% of repetitive workflows across compliance, maintenance … strong early traction and growing demand, they are building toward becoming a category-defining platform in a multi-billion-pound industry. As a Lead Backend Engineer, you'll take ownership of the backend architecture, APIs, and microservices that power an AI assistant operating in real-time production environments. ...

Backend Engineer (Python) 📍 London (Hybrid – 3 days per week) 💰 £75,000–£85,000 + Equity We're working with a fast-growing, profitable healthtech business that's using technology to deliver personalised healthcare products at scale. They're looking for a Backend Engineer to join their team, building … APIs, services and backend systems that power key customer journeys across a growing product portfolio. Tech Stack as the Backend Engineer: Python Flask SQLAlchemy MySQL AWS Docker What We're Looking For as the Backend Engineer: 3–6 years' commercial software engineering experience Strong Python backend ...

Backend Engineer : Up to £650/day : Outside IR35 : Hybrid London We are looking for a Backend Engineer to join an established product and engineering team on an initial 3 month contract, with scope to extend. You will take ownership of the extension, improvement and maintenance … data feeds and maintenance of existing ones for commercial partners, delivering data that drives key business decisions. You will work closely with a Staff Backend Engineer and Head of Engineering. Key Requirements: Strong, demonstrable Go (Golang) development experience Kubernetes experience at scale in production environments Solid understanding of back ...

Back end Software Developer - Data Centres Remote - Working from home £70,000 - £90,000 Overview This role focuses on developing reliable, high-performance backend services and supporting the infrastructure they run on. You’ll work primarily with Python, contributing to API development, system design, and automation, while ensuring … everything is robust, maintainable, and production-ready. You’ll be part of a collaborative, remote-first engineering team, working across the full lifecycle of backend development—from design through to deployment and ongoing improvement. What You’ll Do Build & Scale Backend Services Develop and maintain backend services ...

Searchability are partnered with a well-funded Series A startup building one of the most exciting collaborative canvas/whiteboard developer platforms in Europe. Their product enables companies to build rich multiplayer drawing, diagramming and infinite canvas experiences directly into their own applications, with customers including major global tech … brands. The business has raised over $10m in Series A funding and is scaling rapidly following strong developer adoption and product growth. They’re now looking for a Backend & Infrastructure Engineer to join their product-focused engineering team in London. This is a highly hands-on role focused ...

Lead Backend Engineer Node.js, TypeScript, Microservices, APIs, Event-Driven Architecture, AI London Up to 130k salary + equity This is an opportunity to join a fast-scaling AI startup building an AI operating system for property management, automating up to 80-90% of repetitive workflows across compliance, maintenance ...

Senior Backend Engineer (PHP/Python) Location: UK (Hybrid) Salary: £70,000 – £90,000 + Equity (typically 0.2%–0.4%) Type: Full-time About equipal equipal is a UK fintech improving how businesses finance and manage equipment. We have built an equipment finance platform that enables equipment vendors and business … over $1.5 billion of assets, providing substantial funding capacity as we enter the next phase of growth. We are now looking for an experienced backend engineer to help scale our platform, expand our product offering and contribute to the evolution of our engineering organisation. Our Stack Our core platform ...

Australia. The platform helps insurers, loss adjusters and contractors assess damage, generate estimates and produce structured reports. The role A hands-on backend engineering seat. Most of the week is spent building, reviewing and operating production code. There is a clear path to broader technical ownership (architecture leadership, mentoring ...

Australia. The platform helps insurers, loss adjusters and contractors assess damage, generate estimates and produce structured reports. The role A hands-on backend engineering seat. Most of the week is spent building, reviewing and operating production code. There is a clear path to broader technical ownership (architecture leadership, mentoring ...

company is profitable, bootstrapped, and growing quickly, with a team of 30+ across London, NYC, and Sydney. The Role This is a high-ownership backend engineering role focused on building and scaling systems that power an AI-driven research platform. You’ll work across backend systems, data pipelines … internal infrastructure — partnering closely with product, commercial, and operations teams to automate workflows and improve decision-making. What You’ll Do Design and scale backend systems supporting LLM workflows, vector search, and orchestration Build data pipelines and internal platforms integrating product, CRM, and financial systems Develop automation and internal ...

Insight Global is searching for a Sr. Backend Engineer to join the team of our largest entertainment streaming clients. This person will join the senior level team that works on the company’s multiple partnership platforms focused on search and discovery features, billing, payment, and viewing. This person should … have experience with development using Typescript, Node.js for backend development. Experience working within a heavy AWS environment working within a serverless infrastructure. They should stay up to date on the latest technologies and comfortable in a collaborative environment. The applicant must have the following: Experience utilizing Typescript and Node.JS ...