1 to 25 of 34 Backend Developer Jobs in the UK excluding London

Senior Backend Python Developer - world class healthcare tech AWS, SQL, Python unit testing, TDD, CI/CD London hybrid - a day a week in the office c£70-85k negotiable Were seeking a Senior Backend Developer with a strong software engineering background including 5+ years majoring in writing Backend applications using Python and Django … Rest Framework). The Senior Backend Developer will be joining a top-flight team of 45 at a world-class healthcare scaleup to help scale a native mobile app by 10x over the next 12 months and take the app to the next level. The successful candidate will be analytical, proactive, and delivery focused. A high energy, self … of complexity. Proactively respond to analytics to ensure our products are robust and meet users needs Take technical ownership of areas of product Requirements: 5+ years of experience writing Backend applications using Python and Django (Rest Framework) or related frameworks, e.g. Flask, FastAPI or similar Good understanding of ORM (either Django or SQLAlchemy) Good understanding of Python Unit Testing More ❯

Backend Software Developer, Typescript, .NET, Remote, COR7329 Are you a skilled Backend Software Developer seeking an exciting new role? Do you thrive in a fast-paced, startup environment? Apply now and drive the development of cutting-edge solutions in a fully remote position. The Position As a Backend Software Developer, you will focus on … building and maintaining scalable backend services and infrastructure. You will work extensively with TypeScript, .NET (C#), Python, and Postgres, ensuring reliable, secure, and performant solutions. You’ll work on Azure-first cloud deployments, DevOps pipelines, and system monitoring, helping to deliver robust services to customers. Working within a small, agile team, you’ll contribute to architecture decisions, review code … and support team members. You’ll play a vital role in shaping the backend systems that power an innovative product. The Company Our client is an emerging, well-financed startup with a track record of rapid growth. Working with cutting-edge technology, this role offers the chance to work on a product that already has an established customer base. More ❯

Principal Backend Developer (C#/.NET/Playwright) The Opportunity This is a career-defining role for a Principal Backend Developer who wants to be at the forefront of a growing SaaS organisation. You'll be joining a company that's scaling rapidly, building innovative products that make a real difference to its customers. This role … offers the chance to take ownership of backend systems, shape best practice, and mentor the next generation of engineers. The Role You'll provide technical leadership across backend development, ensuring systems are robust, scalable, and future-proof. Working closely with product owners, testers, and front-end teams, you'll bring engineering excellence into every decision. With a stack … cloud services, and automation frameworks, you'll be both hands-on in coding and guiding others to deliver their best work. Day-to-day responsibilities Architect and build scalable backend services in C#/.NET Drive adoption of clean coding practices, design patterns, and SOLID principles Mentor engineers, fostering a culture of growth, learning, and high performance Collaborate with More ❯

Principal Backend Developer (C#/.NET/Playwright) The Opportunity This is a career-defining role for a Principal Backend Developer who wants to be at the forefront of a growing SaaS organisation. You'll be joining a company that's scaling rapidly, building innovative products that make a real difference to its customers. This role … offers the chance to take ownership of backend systems, shape best practice, and mentor the next generation of engineers. The Role You'll provide technical leadership across backend development, ensuring systems are robust, scalable, and future-proof. Working closely with product owners, testers, and front-end teams, you'll bring engineering excellence into every decision. With a stack … cloud services, and automation frameworks, you'll be both hands-on in coding and guiding others to deliver their best work. Day-to-day responsibilities Architect and build scalable backend services in C#/.NET Drive adoption of clean coding practices, design patterns, and SOLID principles Mentor engineers, fostering a culture of growth, learning, and high performance Collaborate with More ❯

Backend Web Developer – Sheffield – £30,000 to £40,000 Benefits An established and innovative technology business based in Sheffield is looking to recruit a talented Backend Web Developer to join their friendly and supportive team. This is a great opportunity to work on exciting, industry-leading web projects in a collaborative environment that values integrity, continuous … support and guidance to internal teams Key Skills & Experience Applicants should have a minimum of 2 years’ experience, with proven skills in at least three of the following areas: - Backend development using .NET - Backend development using alternative technologies - API integration - SQL Server and T-SQL - Version Control (e.g., Git) You will also bring: - Strong communication and collaboration skills More ❯

The Opportunity We're looking for a talented Senior Backend Developer to join a purpose-driven tech team that creates solutions making a real difference in people's lives. This is more than just a job, it's a chance to shape systems that support individuals and organisations across the UK and Ireland. The Role As a Senior … Backend Developer, you'll be a founding member of a newly formed cross-functional engineering team. You'll play a key role in setting the tone for the team's culture, practices, and success. Your technical expertise will shape our architecture and support business-critical applications. This is a highly collaborative role suited to someone with a passion … for software craftsmanship and continuous improvement. Key Responsibilities Enhance features and functionality of core products Design and implement scalable backend systems using C# (.NET 5+ preferred) Write clean, maintainable, and testable code using TDD/BDD principles Create and maintain RESTful and GraphQL APIs Collaborate with POs, BAs, and stakeholders to define solutions Mentor junior developers and promote best More ❯

The Opportunity We're looking for a talented Senior Backend Developer to join a purpose-driven tech team that creates solutions making a real difference in people's lives. This is more than just a job, it's a chance to shape systems that support individuals and organisations across the UK and Ireland. The Role As a Senior … Backend Developer, you'll be a founding member of a newly formed cross-functional engineering team. You'll play a key role in setting the tone for the team's culture, practices, and success. Your technical expertise will shape our architecture and support business-critical applications. This is a highly collaborative role suited to someone with a passion … for software craftsmanship and continuous improvement. Key Responsibilities Enhance features and functionality of core products Design and implement scalable backend systems using C# (.NET 5+ preferred) Write clean, maintainable, and testable code using TDD/BDD principles Create and maintain RESTful and GraphQL APIs Collaborate with POs, BAs, and stakeholders to define solutions Mentor junior developers and promote best More ❯

We’re seeking a topflight Senior Backend Developer with a strong software engineering background including 5+ years majoring in writing Backend applications using Python and Django (Rest Framework). The Senior Backend Developer will be joining a top-flight team of 45 at a world-class healthcare scaleup to help scale a native mobile app … of complexity. Proactively respond to analytics to ensure our products are robust and meet users’ needs Take technical ownership of areas of product Requirements: 5+ years of experience writing Backend applications using Python and Django (Rest Framework)or related frameworks, e.g. Flask, FastAPI or similar Good understanding of ORM (either Django or SQLAlchemy) Good understanding of Python Unit Testing More ❯

Are you a Back End Java Developer with experience within the iGaming and Gambling sector looking for a new and exciting challenge? BENEFITS : up to £95k depending on experience, fully remote, excellent benefits packageYou will be joining a rapidly expanding company within the iGaming sector, who are committed to providing top-tier gaming experiences to players around the world. … recognised among the top brands within our market, blending sports betting and online casino entertainment on a cutting-edge, custom-built platform. You will be a skilled Senior Java Backend Developer who is a self-motivated professional with a strong track record and a passion for excellence. You'll play a key role in developing innovative iGaming products … Your contributions will help deliver high-quality applications and services, reinforcing the company’s position as an industry leader. Core Responsibilities Work closely with the team to implement complex backend logic and platform solutions. Write clean, scalable, and maintainable code, adhering to industry best practices. Stay updated on the latest Java frameworks, libraries, and development techniques. Translate business needs More ❯

Backend Developer – Early Employee Opportunity We’re a fast-growing, funded startup building the next generation of data-driven platforms. As one of our early employees , you’ll join a small, multidisciplinary team working closely with the leadership team on the migration of our platform from v0 → v1 and the development of new features. This role offers a … clear path to grow into a senior developer or product owner as the company scales. What you’ll do: Build and expand backend applications using Python (FastAPI) Design and implement microservices and REST APIs Write clear documentation, unit tests, and end-to-end tests Work with AWS, Docker, SQLAlchemy, and SQL databases Deploy features via CI/CD More ❯

Backend Developer – Early Employee Opportunity We’re a fast-growing, funded startup building the next generation of data-driven platforms. As one of our early employees , you’ll join a small, multidisciplinary team working closely with the leadership team on the migration of our platform from v0 → v1 and the development of new features. This role offers a … clear path to grow into a senior developer or product owner as the company scales. What you’ll do: Build and expand backend applications using Python (FastAPI) Design and implement microservices and REST APIs Write clear documentation, unit tests, and end-to-end tests Work with AWS, Docker, SQLAlchemy, and SQL databases Deploy features via CI/CD More ❯

Backend Developer – Early Employee Opportunity We’re a fast-growing, funded startup building the next generation of data-driven platforms. As one of our early employees , you’ll join a small, multidisciplinary team working closely with the leadership team on the migration of our platform from v0 → v1 and the development of new features. This role offers a … clear path to grow into a senior developer or product owner as the company scales. What you’ll do: Build and expand backend applications using Python (FastAPI) Design and implement microservices and REST APIs Write clear documentation, unit tests, and end-to-end tests Work with AWS, Docker, SQLAlchemy, and SQL databases Deploy features via CI/CD 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 ❯

priorities, and lean resources, but you embrace the challenge, staying focused under pressure, taking ownership, adapting quickly, and pitching in wherever needed. The Role We re looking for talented backend developer with proven commercial experience to help us build the core infrastructure that shall power our entire platform. You ll be responsible for designing, developing, and maintaining secure … scalable APIs, data processing pipelines, and backend integrations with third-party services like Stripe, PayPal, and Open Banking providers. Key Responsibilities: Build and maintain robust RESTful APIs for mobile and web clients. Design and manage databases built in MongoDB and SQL Server to store, query, and aggregate user financial data. Develop data ingestion pipelines to process real-time and … batch data from external services. Optimize backend performance and ensure application scalability and resilience. Build authentication and authorization flows, following best practices for fintech-grade security. Write unit and integration tests, participate in code reviews, and contribute to continuous improvement. Collaborate closely with frontend/mobile engineers, product managers, and founders in agile development cycles. Contribute to infrastructure decisions More ❯

priorities, and lean resources, but you embrace the challenge, staying focused under pressure, taking ownership, adapting quickly, and pitching in wherever needed. The Role We’re looking for talented backend developer with proven commercial experience to help us build the core infrastructure that shall power our entire platform. You’ll be responsible for designing, developing, and maintaining secure … scalable APIs, data processing pipelines, and backend integrations with third-party services like Stripe, PayPal, and Open Banking providers. Key Responsibilities: Build and maintain robust RESTful APIs for mobile and web clients. Design and manage databases built in MongoDB and SQL Server to store, query, and aggregate user financial data. Develop data ingestion pipelines to process real-time and … batch data from external services. Optimize backend performance and ensure application scalability and resilience. Build authentication and authorization flows, following best practices for fintech-grade security. Write unit and integration tests, participate in code reviews, and contribute to continuous improvement. Collaborate closely with frontend/mobile engineers, product managers, and founders in agile development cycles. Contribute to infrastructure decisions More ❯

Senior Backend Developer- Node.JS Express new ideas, take initiative and save lives. Others talk about being brave, at CLEO Systems, we’re made that way. By providing highly capable, innovative, and integrated software solutions within integrated urgent care – every role at CLEO Systems is made to be brave. As a Senior Software Developer at Cleo Systems, you … will play a key role in designing, building, and maintaining robust, high-performance backend services that power our healthcare applications. You’ll work with modern technologies including Node.js, Redis, RabbitMQ, Postgres, and Docker to deliver scalable and secure software that directly supports clinicians and patients. You will take ownership of critical technical components, contribute to architecture decisions, and collaborate … be an experienced engineer who enjoys solving complex problems, writing clean and efficient code, and mentoring others to uphold best practices in software engineering. You will have experience with – Backend Development: Design, develop, and maintain backend services using Node.JS Messaging & Asynchronous Workflows: Build and manage reliable messaging patterns using queues such as RabbitMQ and Pub/Sub patterns. More ❯

Broster Buchanan are partnered with a quickly growing eCommerce business who are looking for a Backend Integrations Developer with a strong background in e-commerce systems and backend integrations to join their fast-paced, tech-forward software engineering team. This role will focus on the development and maintenance of scalable, cloud-native software solutions that integrate their … remote working per week. On offer is a salary of £55k - £65k + 10% bonus (with plenty of flexibility for the right person). Responsibilities: Design, develop, and maintain backend integrations between e-commerce systems and ERP/WMS/Finance platforms. Build cloud-native, containerised applications and services using modern frameworks and design patterns. Create middleware and intranet … software development practices (e.g., GPT-assisted development, Agentic AI workflows) and suggest practical implementations. Participate in architecture reviews, sprint planning, code reviews, and knowledge sharing. Requirements: Strong experience in backend systems and technologies, such as .NET 8 or 9, C# or Golang Experience in various SQL dialects, including MySQL, MSSQL, PostgreSQL Familiarity with Redis, ElasticSearch and REST APIs Experience More ❯

Broster Buchanan are partnered with a quickly growing eCommerce business who are looking for a Backend Integrations Developer with a strong background in e-commerce systems and backend integrations to join their fast-paced, tech-forward software engineering team. This role will focus on the development and maintenance of scalable, cloud-native software solutions that integrate their … remote working per week. On offer is a salary of £55k - £65k + 10% bonus (with plenty of flexibility for the right person). Responsibilities: Design, develop, and maintain backend integrations between e-commerce systems and ERP/WMS/Finance platforms. Build cloud-native, containerised applications and services using modern frameworks and design patterns. Create middleware and intranet … software development practices (e.g., GPT-assisted development, Agentic AI workflows) and suggest practical implementations. Participate in architecture reviews, sprint planning, code reviews, and knowledge sharing. Requirements: Strong experience in backend systems and technologies, such as .NET 8 or 9, C# or Golang Experience in various SQL dialects, including MySQL, MSSQL, PostgreSQL Familiarity with Redis, ElasticSearch and REST APIs Experience More ❯

Title: Mid Level .NET Developer Salary: Up to £65,000 P/A Location: Bristol- Hybrid (2- days on site) Our client is on an exciting journey to transform the way they deliver digital products and services to millions of customers. To help them achieve this, they're looking for a Mid-level Backend Software Engineer to join … C#, SQL, Azure, and Kubernetes, while collaborating with like-minded engineers and contributing to a strong, supportive tech community. What You'll Do Design, develop, and deliver high-quality backend solutions Collaborate on technical designs and influence architectural decisions Troubleshoot operational and integration issues Champion coding best practices and agile principles Keep up to date with emerging technologies and More ❯

Title: Mid Level .NET Developer Salary: Up to £65,000 P/A Location: Bristol- Hybrid (2- days on site) Our client is on an exciting journey to transform the way they deliver digital products and services to millions of customers. To help them achieve this, they're looking for a Mid-level Backend Software Engineer to join … C#, SQL, Azure, and Kubernetes, while collaborating with like-minded engineers and contributing to a strong, supportive tech community. ?? What You'll Do Design, develop, and deliver high-quality backend solutions Collaborate on technical designs and influence architectural decisions Troubleshoot operational and integration issues Champion coding best practices and agile principles Keep up to date with emerging technologies and More ❯

Title: Mid Level .NET Developer Salary: Up to £65,000 P/A Location: Bristol- Hybrid (2- days on site) Our client is on an exciting journey to transform the way they deliver digital products and services to millions of customers. To help them achieve this, they're looking for a Mid-level Backend Software Engineer to join More ❯

Sick of maintaining legacy systems and itching to build something from scratch? Here’s your chance to work on greenfield projects with the latest tech, where your ideas actually matter and your skills grow every day. You’ll join a More ❯

Portfolio are proud to be exclusively representing an award-wining, Software provider based in the heart of Manchester, providing people solutions to over 100,000 clients worldwide. In this role our client is looking for a candidate that possess an More ❯

Portfolio are proud to be exclusively representing an award-wining, Software provider based in the heart of Manchester, providing people solutions to over 100,000 clients worldwide. In this role our client is looking for a candidate that possess an More ❯

Ourclientisamarketleadingstartup.TheyaretheonlycompanycurrentlyabletoprovideafullAI-drivensolutionintheirmarket.TheyarelookingforaBackEndC#DevelopertojointheirremoteUKteam. KeyResponsibilities: Develop,test,andmaintainsoftwareapplicationsusingthe.NETframework,C#,andrelatedtechnologies. Troubleshoot,debug,andoptimiseapplicationstoensureperformanceandreliability. Writeclean,scalable,andefficientcodefollowingindustrybestpractices. DevelopandmaintainAPIs,integrations,anddatabase-drivensolutions. Stayuptodatewithemergingtrendsandtechnologiestorecommendimprovementstoexistingsystems. KeySkills&Experience C#.NETAPIDevelopment building,maintaining,andoptimizingbackendservices. SQLServer(Advanced) stronginwriting,debugging,andoptimizingcomplex storedprocedures andqueries. Azure hands-onexperiencewithAzureservices(AppServices,Functions,SQLDatabase,Storage,Monitoring More ❯