1 to 25 of 33 Senior 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 … 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 ❯

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 … 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 … 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 ❯

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 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 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 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 … people 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 … us build maintainable, testable systems that follow industry best practices. Database : SQL Server, Entity Framework Tools : Unit and Integration Testing, Git, Agile methodologies What We're Looking For Proven senior-level experience building microservices running on Docker. Expertise in C#, .NET 8.0, and ASP.NET Core. Strong experience with SQL Server and Entity Framework. Hands-on experience with Unit and 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 … opportunities 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 … 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 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 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 ❯

over 2,800 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 … 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 ❯

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 … 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 ❯

Senior Backend Developer (Platform team) Europe About Smartcat Smartcat is building the future of work, where human expertise meets digital teammates to drive 10x to 1000x productivity gains for the world's leading enterprises. We're on the frontier of an entirely new category: Agentic AI. We enable enterprises to build high-performing hybrid workforces made up … shape the future of work with us. Join us in unlocking global potential, one human and agent team at a time. Why you should join our team As a Senior Software Engineer on our Product Platform Team (which is focused on our Product's API Gateway), you will play a pivotal role in rebuilding our product's core architecture More ❯

investors Lunar Ventures and Stride VC, we are accelerating our vision to become the go-to provider for AI-driven automation solutions across the globe. About the Role As Senior Backend Developer in the Product team, you are responsible for building features and designing and implementing new endpoints. This involves diverse tasks from gathering requirements and giving … team. Our Stack And How We Work About You 5+ years working with Python and frameworks like Django, Flask, or FastAPI, with a strong command of building and optimizing backend systems. Hands-on experience with relational/SQL databases, ensuring efficient and reliable data management. Well-versed in software engineering essentials such as unit testing, CI/CD, integration More ❯

Senior .Net Developer – SaaS Company – Greater Manchester (Hybrid Working Encouraged) Salary: £55,000 to £65,000 + Benefits Location: Manchester – Hybrid Xpertise Recruitment are looking for a Senior .Net Developer to join a well-established and fast-growing SaaS business in Manchester. This company has built a high-performing engineering team and a strong reputation for More ❯

Senior .Net Developer – SaaS Company – Greater Manchester (Hybrid Working Encouraged) Salary: £55,(Apply online only) to £65,(Apply online only) + Benefits Location: Manchester – Hybrid Xpertise Recruitment are looking for a Senior .Net Developer to join a well-established and fast-growing SaaS business in Manchester. This company has built a high-performing engineering team and 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 ❯

Senior Backend Engineer C#/.NET High-Trust, High-Autonomy SaaS Up to £60k + generous benefits Hybrid (1 day/month onsite Midlands HQ) Our client is a respected SaaS company delivering robust, high-volume software platforms used across the UK and increasingly abroad. Their mission is to simplify financial and transactional processes with clean, elegant engineering. … You wont find bloat, bureaucracy, or outdated tech here just small, focused teams solving tough problems at scale. Theyre hiring a senior C# back-end engineer to help lead feature development across some of their most strategically important product areas. Why youll want this job: Youll work on systems that require performance, precision, and resilience powering everything from lender … year of service Access to learning platforms, books, and conferences Inclusive, feedback-driven engineering culture Genuinely nice people. No egos, no blame, no silos. If youre a strong .NET developer who wants to work on software that matters in a company that respects its engineers this is worth a chat. More ❯

Senior Backend Engineer C#/.NET High-Trust, High-Autonomy SaaS Up to £70,000 + generous benefits Hybrid (1 day a week onsite - Central Manchester) Our client is a respected SaaS company delivering robust, high-volume software platforms used across the UK and increasingly abroad. Their mission is to simplify financial and transactional processes with clean, elegant … engineering. You wont find bloat, bureaucracy, or outdated tech here just small, focused teams solving tough problems at scale. Theyre hiring a senior C# back-end engineer to help lead feature development across some of their most strategically important product areas. Why youll want this job: Youll work on systems that require performance, precision, and resilience powering everything from … year of service Access to learning platforms, books, and conferences Inclusive, feedback-driven engineering culture Genuinely nice people. No egos, no blame, no silos. If youre a strong .NET developer who wants to work on software that matters in a company that respects its engineers this is worth a chat. More ❯

Over the years, we have experienced explosive growth - which means we need more rock stars to join our quest for total world domination. We are looking for an awesome Senior Java Backend Developer to join our growing team. The role isa hybrid based one in the UK (St Albans), Malta, or Gibraltar, fullyremote from EU is an 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 ❯

mobile apps and advanced integrations with major tech brands including Instagram , Facebook and Google. Role Overview Given our exciting and progressive growth plans, we are looking for an exceptional Senior Back-End Engineer to come join our global business. Working collaboratively in a cross-functional product team within a tribe , you will beaccountable for designing and developing applications and … 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 ❯

Salary: £100,000 - £100,000 per year Requirements: Excellent knowledge of Node.js with Nest.js Excellent knowledge of TypeScript Proficiency in English Responsibilities: Design and maintain scalable backend services using Node.js (Nest.js) and TypeScript for decentralized exchanges Write clean, secure, and well-tested code Technologies: Backend TypeScript Microservices Node.js JavaScript More: We are a cross-chain, multi-wallet, non 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 … processing payments, analyse financial traffic and aid us in detecting suspicious activity. We're open to the level you're applying on, if you don't feel like a Senior Engineer yet, but you tick all the boxes, we'll definitely consider your application. Our project is establishing itself as the leading e-mobility provider solution within the industry More ❯