1 to 25 of 87 Backend Developer Jobs in the UK

Job Title: Senior Backend Developer Location: Liverpool City Centre, Hybrid working available Salary: Up to £75,000 per annum depending on experience Job Type: Permanent, Full Time Hours: 37.5 hours per week, Monday to Friday, 9am to 5:30pm The Acorn Group are looking for a highly skilled, experienced Backend developer to join our team. We … are looking for a developer that has experience developing scalable applications using the latest .Net Technologies. You will have the chance to work on complex projects involving large datasets, message bus architectures, and streaming large sets of data. What you'll be doing: Application Development: Design, develop, and maintain robust applications using NET 8 and C#. Implement and manage … message queuing and handling. You will handle large datasets using MongoDB, Azure Cosmos DB, MySQL, and MS SQL Server. You will Work closely with cross-functional teams to define backend requirements, design scalable solutions, and implement new features. Ensure seamless integration with upstream services. Identify bottlenecks and bugs, and devise solutions to mitigate and address these issues. What we More ❯

Backend Developer – Elixir/Ruby/Go Location: Remote (One day a month in Chester) How does joining a fast-scaling tech business in one of the most exciting growth areas sound? We are helping a client find a Backend Developer to join the engineering team behind a leading IoT platform – used by thousands of businesses More ❯

Waracle are looking for a Senior Backend Developer for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation. We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and … delivery to operations. This is a Hybrid role working from any of our UK offices (Glasgow, Dundee, Edinburgh and London) 2 days a week. Are you an exceptional Senior Backend Developer with deep expertise in .NET and C#? Ready to transcend coding, shape technical direction, and build robust, scalable solutions for leading clients? Waracle, a world-class digital … technology consultancy, is seeking a visionary backend leader to join our team! This pivotal role places you at the forefront of designing, developing, and deploying high-performance backend systems that solve complex business challenges. If you thrive on intricate technical puzzles, leading high-performing teams, and driving innovation in a dynamic consultancy environment, this is your opportunity to More ❯

Senior Backend Developer – Elixir/Ruby/Go Location: Remote (One day a month in Chester) Fancy joining a high-growth tech business with a major product roadmap and big investment into engineering? We’re helping a client find a Senior Backend Developer to play a key role in scaling an established IoT platform – already used … high-performing teams, and building systems that actually make a difference – this one’s worth a look. In the role, you’ll be: Designing, building, and maintaining secure, scalable backend systems using Elixir and Ruby , with some Go in the mix Taking the technical lead on key projects, supporting delivery while influencing the wider architecture Guiding and mentoring junior … to solve real-world problems at pace Rolling up your sleeves when it counts – especially during high-pressure delivery periods What we’re looking for: Significant experience as a backend engineer in modern product environments Strong critical thinking skills and a pragmatic approach to problem solving Ability to lead from the front – both technically and as a mentor A More ❯

Senior Backend Developer – Elixir/Ruby/Go Location: Remote (One day a month in Chester) Fancy joining a high-growth tech business with a major product roadmap and big investment into engineering? We’re helping a client find a Senior Backend Developer to play a key role in scaling an established IoT platform – already used … high-performing teams, and building systems that actually make a difference – this one’s worth a look. In the role, you’ll be: Designing, building, and maintaining secure, scalable backend systems using Elixir and Ruby , with some Go in the mix Taking the technical lead on key projects, supporting delivery while influencing the wider architecture Guiding and mentoring junior … to solve real-world problems at pace Rolling up your sleeves when it counts – especially during high-pressure delivery periods What we’re looking for: Significant experience as a backend engineer in modern product environments Strong critical thinking skills and a pragmatic approach to problem solving Ability to lead from the front – both technically and as a mentor A More ❯

C# Backend Developer (x2) My Client is looking for two experienced C# Backend Developers to join a growing technology team. You’ll play a vital role in building scalable, high-performance APIs and services to support critical platforms in a fast-paced, agile environment. Key Responsibilities: Develop and maintain backend systems using C#, .NET Collaborate with … frontend, mobile, and product teams to deliver end-to-end solutions Write clean, testable code and support CI/CD practices Ensure performance, reliability, and security across backend components Participate in code reviews and design discussions Key Skills: Strong experience in C# and .NET Core Experience with RESTful APIs, SQL Server, and Entity Framework Exposure to cloud platforms (Azure … of software architecture and system integration Bonus: Knowledge of microservices or event-driven architectures Benefits: Remote working Excellent career and progression Flexible working Interested? Please Click Apply Now! C# Backend Developer (x2 More ❯

C# Backend Developer (x2) My Client is looking for two experienced C# Backend Developers to join a growing technology team. You'll play a vital role in building scalable, high-performance APIs and services to support critical platforms in a fast-paced, agile environment. Key Responsibilities: Develop and maintain backend systems using C#, .NET Collaborate with … frontend, mobile, and product teams to deliver end-to-end solutions Write clean, testable code and support CI/CD practices Ensure performance, reliability, and security across backend components Participate in code reviews and design discussions Key Skills: Strong experience in C# and .NET Core Experience with RESTful APIs, SQL Server, and Entity Framework Exposure to cloud platforms (Azure … of software architecture and system integration Bonus: Knowledge of microservices or event-driven architectures Benefits: Remote working Excellent career and progression Flexible working Interested? Please Click Apply Now! C# Backend Developer (x2 More ❯

C# Backend Developer (x2) My Client is looking for two experienced C# Backend Developers to join a growing technology team. You’ll play a vital role in building scalable, high-performance APIs and services to support critical platforms in a fast-paced, agile environment. Key Responsibilities: Develop and maintain backend systems using C#, .NET Collaborate with … frontend, mobile, and product teams to deliver end-to-end solutions Write clean, testable code and support CI/CD practices Ensure performance, reliability, and security across backend components Participate in code reviews and design discussions Key Skills: Strong experience in C# and .NET Core Experience with RESTful APIs, SQL Server, and Entity Framework Exposure to cloud platforms (Azure … of software architecture and system integration Bonus: Knowledge of microservices or event-driven architectures Benefits: Remote working Excellent career and progression Flexible working Interested? Please Click Apply Now! C# Backend Developer (x2 More ❯

Senior Backend Developer - DevOps/AWS - Bolton One day per week onsite Outside IR35 £400-450 A Senior Backend Developer is needed for a client based in Bolton. The client is looking for an individual to assume responsibility for backend development and infrastructure of their in-house ERP/WMS/MRP platform. This position … requires hands-on experience in both Laravel and cloud DevOps, with duties including management of backend development, platform architecture, and AWS infrastructure. The role also involves mentoring a team and collaborating with the project manager, stakeholders, and QA personnel. The responsibilities will directly affect the performance, scalability, and functionality of the platform used in manufacturing, logistics, and eCommerce. Key More ❯

Job Title: Backend Developer (Golang/Cross-Skilled) Location: Bristol (Hybrid 2 days in-office) Type: Permanent Salary: Competitive + Bonus + Share Scheme + Benefits Join one of the UKs most innovative digital companies as a Backend Developer , working on scalable, secure, and high-performance systems. We welcome applications from experienced backend engineers who … take ownership of features from design through to deployment in the cloud, while expanding your expertise in modern tools and technologies. What You'll Do Design and develop robust backend applications (initially in your core language, with support to learn and transition into Go/Golang) Build scalable APIs and data pipelines integrating with third-party platforms Write clean … welcome) Participate in architecture discussions, code reviews, and documentation (Optional) Contribute to frontend development (Svelte, React, Vue) with training available What We're Looking For Essential: Strong experience building backend systems in languages such as Java, C#, Python, Node.js, C++, or Rust Understanding of REST APIs, SQL (e.g. PostgreSQL), and RDBMS/NoSQL databases Familiarity with cloud platforms (GCP More ❯

Job Description Waracle is seeking a Senior Backend Developer to join our digital technology consultancy, renowned for its diverse and ambitious community of specialists in technology-driven transformation. We collaborate with clients to solve complex business and customer challenges, creating innovative digital products and services. Our projects involve business-critical IT transformations from strategy to operations. This is … a hybrid role based in any of our UK offices (Glasgow, Dundee, Edinburgh, London), requiring 2 days of on-site work per week. Are you an experienced Senior Backend Developer with expertise in .NET and C#? Do you want to influence technical directions and develop scalable solutions for leading clients? Join Waracle and take on a role that … involves designing, developing, and deploying high-performance backend systems to address complex challenges. If you enjoy solving technical puzzles, leading teams, and driving innovation, this is your chance to make a significant impact. Key Responsibilities: Lead Backend Architecture: Design and develop scalable .NET/C# applications, including microservices and APIs, ensuring high code quality and clean architecture. Solve More ❯

My client, a reputable cybersecurity vendor with a global presence and excellent product recognition, is seeking a Senior Backend PHP Developer to join their team. This is a permanent role, and this client is open to a fully remote candidate based in the UK or someone based in London who is open to hybrid work. Your Responsibilities As … a Senior Backend PHP Developer, you will be working closely with the Development Team and Infrastructure Team on their tech stack and projects. What you'll be doing: Design, develop, and maintain scalable, secure, and high-performance backend applications using PHP, Python, and Java. Build and optimize RESTful APIs and microservices to support robust application functionality. Work … ensure project success and client satisfaction. Write and maintain clear, comprehensive technical documentation for seamless team collaboration and knowledge sharing. Stay up-to-date with the latest trends in backend development, cloud computing, and DevOps to enhance system design and team capabilities. What You Should Bring? We're looking for a hands-on Senior Backend Developer 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 ❯

We're looking for a passionate Senior Backend Developer who thrives on solving complex problems and building systems that scale. You'll be at the forefront of creating next-generation backend services that genuinely make a difference for our customers and business. In this role, you'll have the freedom to lead, the support to grow, and … have the best tools. That's why you'll have top-of-the-range equipment and a workspace designed for creativity, collaboration, and getting things done. Job Title: Senior Backend Developer Location: Liverpool City Centre on a hybrid working basis Salary: £65,000-£75,000 depending on experience What You'll Do Build and maintain scalable microservices in More ❯

Job Title: Senior Backend Developer Location: Liverpool City Centre, Hybrid working available Salary: Up to £75,000 per annum depending on experience Job Type: Permanent, Full Time Hours: 37.5 hours per week, Monday to Friday, 9am to 5:30pm The Acorn Group are looking for a highly skilled, experienced Backend developer to join our team click 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 ❯

talented Radius colleagues. We've achieved big things already, but we're just getting started. This is where you come in... Job Description The role of Senior Backend Developer is very important to us. We are looking for someone with strong Typescript and NodeJS experience to join the talented development team in our vehicle telematics business, Radius Telematics. … step beyond conventional roles. Specifically, you will play a key role in developing and running a complex multi-environment SaaS product compromised of 70+ git repos using modern microservice backend built in Typescript/NodeJS/Docker on AWS and automated CI/CD pipelines released onto terraform-provisioned infrastructure. There will be opportunities to learn as well as … using your own experience to influence the team and platform. Your responsibilities will include... Design, build, and maintain scalable and secure backend systems using node.js and typescript Work closely within a cross-functional team and the wider team, with a focus on working together to achieve desired outcomes. Lead by example, stepping in to guide the team through challenging More ❯

Our signature feature that allows players' odds, cash outs, and more to be supercharged at random, creating surprise wins and a thrilling betting experience. We're looking for a Backend Developer to help drive the growth of our next-generation sports and casino platform. In this role, you'll be instrumental in shaping the backend systems that … unique betting experience. If you're passionate about clean architecture, system design, and writing high-quality code that scales, apply below! Your Role & Responsibilities Design, develop, and maintain robust backend services using Node.js and a microservices architecture. Build and optimise relational databases, ensuring scalability and data integrity (MySQL/PostgreSQL). Integrate internal and external APIs, including payment providers … code reviews, design discussions, and collaborative problem-solving. Contribute to the team's shared knowledge through documentation, mentoring, and technical leadership. What We're Looking For You're a backend developer who thrives on clean architecture, scalable systems, and high standards: Solid experience with Node.js in production environments. Proven background in relational database design and optimisation (MySQL/ More ❯

on experience Job Type: Permanent, Full Time Hours: 37.5 hours per week, Monday to Friday, 9am to 5:30pm The Acorn Group are looking for a highly skilled, experienced Backend developer to join our team. We are looking for a developer that has experience developing scalable applications using the latest .Net Technologies. You will have the chance … message queuing and handling. You will handle large datasets using MongoDB, Azure Cosmos DB, MySQL, and MS SQL Server. You will Work closely with cross-functional teams to define backend requirements, design scalable solutions, and implement new features. Ensure seamless integration with upstream services. Identify bottlenecks and bugs, and devise solutions to mitigate and address these issues. What we … until checks are completed to a satisfactory standard. Please click the ' APPLY' button to submit your CV for this role. Candidates with experience or relevant job titles of; Software Developer, Senior System Developer, Software Engineer, Systems Developer, Software Tester, Backend Services, API's, API, Application Programming Interface may also be considered for this role. More ❯

Here at Responsiv, we are looking to add a new Java Backend Developer to our team. If you have skills in API and Web product development, we need YOU to enhance our capabilities, become embedded within Responsiv, and deliver on technical projects. As a Java Backend Developer, you'll work in a small team of talented … is a technical role that requires self-motivation, problem solving, time planning, and excellent written and spoken communications, including presentations to senior stakeholders and mixed audiences. As the Java Backend Developer, your primary focus will be: Developing system-to-system integration solutions for customers. Contributing to the commercial product development of the Responsiv Unity and Responsiv Cloud product More ❯

As Backend Developer, you'll have the opportunity to work primarily on Pydantic Logfire, andoccasionally Pydantic and Pydantic AI. You'll be deeply involved in the development andmaintenance of our core paid product. What you will do Contribute to the development of Pydantic Logfire Write and maintain documentation and examples Engage with the community through GitHub discussions, issues … of software engineering experience Nice to haves but not required: Knowledge of Rust or interest in learning it Deep frontend knowledge (i.e. true fullstack) Experience with technical writing or developer advocacy Experience maintaining open source projects Background in building developer tools Experience with performance optimization Experience with IaC tools (we use Pulumi) Some non-technical requirements: Live and … the data validation library that powers modern Python development - 300 million downloads per month, used by virtually every tech company you've heard of. Why? Because we obsess over developer experience and write code we'd actually want to use ourselves. We're applying that same engineering mindset to Pydantic Logfire , our observability platform built for today's development More ❯

Senior ML & AI Backend Developer You'll lead the design and deployment of scalable backend systems powering ML, big data, and LLM-driven applications. From MLOps pipelines and big data engineering to productionizing classical ML and LLMs, you'll be at the core of AI infrastructure. Key Requirements: Expert in Python, ML/AI frameworks (PyTorch, TensorFlow … Hugging Face) Proven MLOps, big data, and backend/API development experience Deep understanding of NLP and LLMs Proficient with cloud platforms (AWS/GCP/Azure), Airflow, DBT, Docker/Kubernetes Strong collaboration, problem-solving, and coding best practices Nice to have: LLM fine-tuning, streaming data, big data warehousing, open-source contributions. More ❯

Senior ML & AI Backend Developer You'll lead the design and deployment of scalable backend systems powering ML, big data, and LLM-driven applications. From MLOps pipelines and big data engineering to productionizing classical ML and LLMs, you'll be at the core of AI infrastructure. Key Requirements: Expert in Python, ML/AI frameworks (PyTorch, TensorFlow … Hugging Face) Proven MLOps, big data, and backend/API development experience Deep understanding of NLP and LLMs Proficient with cloud platforms (AWS/GCP/Azure), Airflow, DBT, Docker/Kubernetes Strong collaboration, problem-solving, and coding best practices Nice to have: LLM fine-tuning, streaming data, big data warehousing, open-source contributions. More ❯

Job Description Senior Backend Developer with C# .net Working as part of the Digital team, you'll be responsible for the ongoing development and improvements to an eCommerce website as well as other internal applications for this award-winning Travel Company. You will be responsible for: Leading the eCommerce web and application development from a technical perspective Collaborating … with the front end developer and design resource to deliver improved UI & UX A problem solver - you'll need to be able to analyse and suggest improvements to existing website features Analysing and identifying ways to automate processes working alongside the business lead Implementing automated regression testing for the software developed Skills and Experience: Excellent working knowledge of ASP.NET … an agile/Kanban environment and familiar with JIRA and confluence Not afraid to challenge existing thinking in order to improve processes The Client will consider candidates with solid Backend development skills without Umbraco. The salary for this role will be in the range £55K to £80K per year depending on experience. The Client is based in Central London More ❯

Join the Tech Powerhouse Behind Next-Gen iGaming Platforms! Are you a seasoned backend engineer ready to tackle the complex world of real-time, high-frequency data exchange ? Our client, a fast-growing B2B iGaming platform provider in Malta, is building the future of Sports Exchange services -and they need top engineering talent to make it happen. About the … Role We're looking for a senior backend developer (language agnostic) with deep knowledge in designing high-performance, distributed systems . You'll work in a core product team focused on building scalable, event-driven architectures that power millions of transactions across casino, sportsbook, and exchange products. This is a strategic, high-impact role in a team responsible … Jetstream Datastores: Redis, ClickHouse, PostgreSQL, MongoDB Cloud & Infra: Docker, Kubernetes, CI/CD pipelines Architecture: Microservices, real-time APIs, event-driven systems What You'll Do Architect and develop backend systems for real-time sports exchange services Design high-throughput, low-latency services Work with cross-functional teams to deliver reliable and scalable solutions Lead code reviews, system design More ❯