1 to 25 of 38 Backend Developer Jobs in London

Backend Integration Developer – Modern PHP, APIs, Cloud Hybrid: Two days in our client's London office and three days working from home. On Monday morning, you might be refining an API connection between a collections database and a public-facing platform. By Wednesday, you could be writing a PHP 8.2 script to automate image processing for a new … exhibition launch. Friday afternoon? Testing out an AI tool to help curators search archive materials faster. That’s the reality of life as a Backend Integration Developer here. No two weeks look the same. The mix of backend software development, systems integration, and cloud infrastructure work means you’ll constantly be learning, solving problems, and collaborating with … colleagues from across the organisation. This is a fantastic opportunity for a technically adaptable developer to join a nationally respected cultural institution with an ambitious digital vision. You’ll work on varied and meaningful projects; from API-driven integrations to AI experimentation - helping to shape a modern, secure, and scalable technology environment. You’ll operate in a multi-platform More ❯

Backend Integration Developer – Modern PHP, APIs, Cloud Hybrid: Two days in our client's London office and three days working from home. On Monday morning, you might be refining an API connection between a collections database and a public-facing platform. By Wednesday, you could be writing a PHP 8.2 script to automate image processing for a new … exhibition launch. Friday afternoon? Testing out an AI tool to help curators search archive materials faster. That’s the reality of life as a Backend Integration Developer here. No two weeks look the same. The mix of backend software development, systems integration, and cloud infrastructure work means you’ll constantly be learning, solving problems, and collaborating with … colleagues from across the organisation. This is a fantastic opportunity for a technically adaptable developer to join a nationally respected cultural institution with an ambitious digital vision. You’ll work on varied and meaningful projects; from API-driven integrations to AI experimentation - helping to shape a modern, secure, and scalable technology environment. You’ll operate in a multi-platform More ❯

Backend Developer (Node.js) Overview Our clients technology powers thousands of retail websites, providing tools to help clients retain users and gain valuable analytical insights.They are seeking a talented Node.js Backend Developer with a strong background in serverless architecture, MySQL, distributed systems, infrastructure as code, and extensive AWS experience. As a key member of their development team … you will be responsible for building and maintaining high-performance, scalable backend systems. Your role will include designing, developing, and maintaining cutting-edge backend solutions, as well as mentoring junior developers. Responsibilities Design and implement serverless backend solutions using Node.js, MySQL, and AWS technologies. Develop and maintain APIs and microservices to support various applications. Collaborate with cross … functional teams to gather requirements and propose effective solutions. Stay updated with emerging technologies and trends in backend development and AWS services. Document technical specifications, architectural decisions, and codebase to ensure knowledge sharing and system reliability. Optimise database schemas, queries, and indexes for efficient data storage and retrieval. Implement caching strategies to enhance system performance and reduce latency. Required More ❯

Senior Backend Developer Capital Pay Software Solutions Ltd Promoting world class payment solution systems to global audiences Capital Pay Software Solutions Ltd is advancing its capabilities by enhancing its Payment Aggregator Platform. This strategic initiative is crucial to our international operations, designed for optimal flexibility and adaptability across diverse markets. We are seeking highly skilled and motivated professionals … secure and scalable FinTech solutions, we encourage you to connect with us. Join Capital Pay International in driving innovation in the global payment landscape. We are seeking a Senior Backend Developer with extensive experience in the FinTech industry, specifically in building secure and robust solutions. The ideal candidate will be a technical leader, capable of designing and implementing … the core architecture of our payment aggregation platform. Key Responsibilities: Lead the design and development of the core backend architecture, including the API gateway, transaction management layer, and merchant management layer. Select and implement appropriate technologies from our stack, which includes python, Node.js, or Jave for programming languages; Django, Express.js, or Spring Boot for frameworks; and PostgreSQL or MySQL More ❯

Senior Backend Developer Capital Pay Software Solutions Ltd Promoting world class payment solution systems to global audiences Capital Pay Software Solutions Ltd is advancing its capabilities by enhancing its Payment Aggregator Platform. This strategic initiative is crucial to our international operations, designed for optimal flexibility and adaptability across diverse markets. We are seeking highly skilled and motivated professionals … secure and scalable FinTech solutions, we encourage you to connect with us. Join Capital Pay International in driving innovation in the global payment landscape. We are seeking a Senior Backend Developer with extensive experience in the FinTech industry, specifically in building secure and robust solutions. The ideal candidate will be a technical leader, capable of designing and implementing … the core architecture of our payment aggregation platform. Key Responsibilities: Lead the design and development of the core backend architecture, including the API gateway, transaction management layer, and merchant management layer. Select and implement appropriate technologies from our stack, which includes python, Node.js, or Jave for programming languages; Django, Express.js, or Spring Boot for frameworks; and PostgreSQL or MySQL More ❯

you have the freedom to work as you please - all that matters is execution. Join us and help lay the foundation for a decentralized future. Currently looking for: Senior Backend Developer Remote Key responsibilities As a senior Backend Developer, you will be a part of the team that works on the development of the backend … provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry. Scalability - all backend services that power Bitfinex platform must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth. A good example … are the renown Bitfinex API, the most solid, low-latency and complete in our industry. Security - Bitfinex makes Security its most important feature. The Backend Development team is responsible for building all the API services and backend processes with the highest security principles and standard, in order to protect the safety of the entire user base. Exceptional Node More ❯

Job Title:Software Engineer( Backend Developer) Location:London Contract: 6 Months with potential extension (Inside IR35) Commute- Max 2 days in office Payrate : £63 - £84 Per Hour Inside IR35 About the Role We are seeking a Software Engineer (Backend Developer) for the FinTech business unit of a leading global digital travel platform. This role involves building … stakeholders What You'll Do Design, build, and maintain scalable microservices that power our compliance platforms. Develop tools and systems for sanctions screening, transaction monitoring, and regulatory reporting. Optimize backend processes for performance, reliability, and data integrity. Enhance tooling, analytics, and reporting used by internal compliance stakeholders. Collaborate with cross-functional teams to understand regulatory processes and deliver technical More ❯

re just getting started. Our HQ? Zürich's iconic Bahnhofstrasse, a fitting home for a company redefining how businesses operate. Ready to build the future? Join blp today. About Backend at BLP Digital We are a rapidly growing ETH and HSG spin-off, and our AI-enabled product revolutionises ERP automation. Our team is heavily focused on engineering, which … for those who eager to excel. Do you want to apply your skills within a collaborative team, working on complex challenges using the latest technology? Job Summary As Senior Backend Developer, you will work on our advanced web services. You are an independent and solution-oriented developer, who enjoys working on deployed client solutions under sometimes tight … deadlines. You are an expert in Go, relational databases, and like to do unit testing. You assume ownership and thrive working in a motivated team. Job Summary As Senior Backend Developer , you will work on our advanced web services. You are an independent and solution-oriented developer, who enjoys working on deployed client solutions under sometimes tight More ❯

culture rewards self-starters and those who are committed to doing what is best for our customers. Location: Hybrid - London We are seeking a skilled and motivated Server-Side Developer to work on our Platform. It is a custom-built online quote, bind and formal documentation issuance platform, that also offers a range of analytics to assist with underwriting … performance, and scalability. Troubleshoot and debug server issues, providing timely solutions. Implement security and data protection measures. Keep up to date with emerging trends, technologies, and best practices in backend development. About you: Experience as a Backend Developer or similar role. Proven high proficiency in ASP.NET, .NET (C#), and SQL. Experience with backend frameworks and libraries. More ❯

k + Benefits 2 days on site in North London 3 days remote I am recruting for a talented and driven Backend Engineer to join a dynamic team, focused on the creation and deployment of innovative software solutions. As a Backend Engineer, you will work closely with cross-functional teams, including engineering, product management, design, and quality assurance … features by working alongside engineering, product management, design, and QA teams. Promote best practices : Advocate and enforce coding standards, architectural patterns, and best practices. Your in-depth knowledge of backend technologies will help guide and support your peers, ensuring high-quality code. Automation and process improvement : Increase development efficiency, reliability, and scalability by creating automated processes that streamline workflows. … with Flask, FastAPI, or similar frameworks). Expertise in designing architectures that meet scalability, reliability, and security goals. Strong problem-solving skills, particularly in product development. Solid understanding of backend best practices, coding standards, and architectural patterns. Experience in automating builds (CI/CD), feature flags, and automated testing. Bonus Skills: Experience with message-driven systems (e.g., Google Pub More ❯

The Liberty Recruitment Group is excited to be working in partnership with a leading Tech-enabled Analytics Consultancy based in London, who are looking for a Senior Backend Developer to join their award-winning Insurance division. As part of a mixed technical team including back-end developers, testers, front-end developers and actuarial data scientists, youd be working More ❯

The Liberty Recruitment Group is excited to be working in partnership with a leading Tech-enabled Analytics Consultancy based in London, who are looking for a Senior Backend Developer to join their award-winning Insurance division. As part of a mixed technical team including back-end developers, testers, front-end developers and actuarial data scientists, you d be More ❯

The Liberty Recruitment Group is excited to be working in partnership with a leading Tech-enabled Analytics Consultancy based in London, who are looking for a Senior Backend Developer to join their award-winning Insurance division. As part of a mixed technical team including back-end developers, testers, front-end developers and actuarial data scientists, you’d be More ❯

Role: Backend Engineer (NestJS, SaaS, ERP) We're hiring a seasoned backend engineer to lead our platform rebuild You'll collaborate closely with the founder, shaping the product and scaling the tech. What You'll Do Lead backend dev using NestJS Design scalable APIs and ERP/accounting tool integrations Work with AI tools (OpenAI, Vertex AI … Define architecture and set engineering standards Mentor junior developers What We're Looking For Strong NestJS + SaaS backend experience ERP/accounting integration experience Solid JavaScript/TypeScript skills Comfortable owning projects end-to-end Bonus: Experience with AI APIs and frontend (Next.js/Node.js More ❯

architecture - Knowledge of event-driven systems and tools/protocols like Kafka, and gRPC will be a plus. Experience - Have experience ( 3+ years) working on internal product engineering teams, developer tools, developer productivity or infrastructure products at scale. Adaptable - Are a generalist engineer with an ability to pick up new frameworks quickly and willing to work across the More ❯

Role Overview: We are looking for a Senior Backend Developer to develop and maintain a scalable and robust iGaming platform. Responsibilities Collaborating with the Team Lead and other stakeholders to develop and deliver iGaming products Architecting and coding high throughput scalable client-server systems for iGaming platform. Maintaining and optimising existing systems, includes profile and analyse bottleneck, and More ❯

Senior Backend Engineer - Python AWS £80,000-100,000 + share options Private medical + GP service 25+ days holiday Paid sabbaticals Flexible working Python, AWS Central London, hybrid (1 day per week) Profitable FinTech We're partnered with a profitable, VC-backed fintech scale-up that's helping thousands of small businesses across Europe thrive. They combine modern … They're one of the UK's standout tech employers in the fintech space. This role offers full ownership, from project scoping to release, with the autonomy to shape backend architecture of projects with real business impact. You'll have the opportunity to take the lead on greenfield projects, define ways of working and deploy iteratively in a fast … moving, data-driven environment. Most of the codebase is in Python, however they've utilised the likes of Rust and Go in smaller pieces of work. Ideal Profile: Strong backend software engineering experience with relevance to their stack (e.g., Python, Go, Rust or any OO language etc.). Confident working with relational databases. Experience with designing relational database schemas More ❯

Job Title: Mid to Back End Developer Location: London Hybrid Model: 3 days in office Length of Contract: 6 months Pay Rate : £500 - £700 via umbrella IR35: Inside IR35 Are you a skilled developer with extensive experience in Java and Node.js, TypeScript, SQL ? Ready to take on exciting backend challenges and work on cutting-edge infrastructure projects … thorough unit and integration tests to ensure robust, reliable code Collaborate with cross-functional teams to deliver innovative new features What We're Looking For: Extensive professional experience in backend development with Java and Node.js/TypeScript Solid knowledge of containerization tools (Docker, Kubernetes) Experience managing CI/CD pipelines with GitHub and GitHub Actions Strong understanding of SQL More ❯

Job Title: Mid to Back End Developer Location: London Hybrid Model: 3 days in office Length of Contract: 6 months Pay Rate : £500 - £700 via umbrella IR35: Inside IR35 Are you a skilled developer with extensive experience in Java and Node.js, TypeScript, SQL Ready to take on exciting backend challenges and work on cutting-edge infrastructure projects … thorough unit and integration tests to ensure robust, reliable code Collaborate with cross-functional teams to deliver innovative new features What We're Looking For: Extensive professional experience in backend development with Java and Node.js/TypeScript Solid knowledge of containerization tools (Docker, Kubernetes) Experience managing CI/CD pipelines with GitHub and GitHub Actions Strong understanding of SQL More ❯

Zaizi is looking for a Senior Software Developer with solid technology skills, but who is also passionate about improving outcomes and the user experience. You'll be reliable in your own deliverables but also curious about and offer innovative ideas to others in a mutli-disciplinary team. Our work culture is inclusive, modern, friendly, and democratic. We look for More ❯

tech - 150+ people, 5 countries, hundreds of customers, and a product that's redefining how the world shops. We're looking for a seasoned and thoughtful Senior Python Software Developer who thrives on building reliable, scalable backend systems and takes pride in writing clean, maintainable code. You care deeply about long-term architecture, performance, and well-structured APIs More ❯

roles where your newly learned skills can be applied meaning a vast array of opportunities are now available to you. Examples of some of these are listed below: - Junior Developer Website Support Developer Junior Web Developer Content Editor Wordpress Developer Junior Software Developer Junior Front or Back End Development Development Support We have been helping More ❯

team of like-minded and creative developers. Tech stack: Kotlin, Spring, Java, PostgreSQL, AWS, Microservices, Typescript, Docker, Kubernetes, Terraform, JSON/REST, SOAP and XML. This role is a backend development position, and not mobile/android focused. You will need to be open to working in a fast-paced, sometimes chaotic start-up environment, truly committed to building More ❯

can help us make it happen. This Role: We're looking for someone who's passionate about code, curious, and eager to learn. You'll be working alongside the backend team that provides services for our Electroverse ecosystem in the electric vehicle and electrification space with focus on helping develop the core functionality of our business. You'll help More ❯

wallets or in DeFi will be beneficial. Responsibilities Innovative Solutions: Contribute to the creation of groundbreaking projects, utilizing agile methodologies and innovative technologies to create incredible platforms. Scalability: Ensure backend services remain effortlessly responsive and real-time, accommodating the platform's continual growth and evolving user base. Security: Uphold the highest security standards in all backend processes and More ❯