23 of 23 Backend Developer Jobs in the South East

Back End Developer (C#, .NET, SQL) We're supporting a well-backed SaaS scale-up in the learning-tech space who are hiring a Backend Developer to join their growing engineering team. If you enjoy building real features end-to-end, not just patching bugs, this … great fit. What you'll be doing Building and maintaining backend services in C#, ASP.NET, .NET Working heavily with MS SQL and API development Contributing to new feature design, architecture discussions, and code reviews Helping shape a platform used by thousands of users Collaborating with a small, supportive team ...

Senior Backend Developer (PHP) We are looking for an experienced Senior Backend Developer to join a rapidly growing technology team and help build innovative security solutions. About the Role This position involves working on advanced online protection tools and applications designed to keep users safe across ...

Senior Backend Python Developer (Cloud & Microservices) Salary: Up to £90,000 Location: Hybrid, London HQ Reporting to: Head of AI and Data Science Overview Our client is hiring a Senior Backend Python Developer to build and maintain scalable backend systems supporting AI and automation projects. … successful candidate will work on cloud-based microservice architectures , helping integrate AI systems and backend infrastructure within the organisation’s technology ecosystem. Key Responsibilities Design and develop high-quality, efficient backend systems using Python . Build and maintain microservices and RESTful APIs . Integrate backend systems with ...

Senior Python Backend Developer Kings Cross, London- Onsite 2/3 days a week 6 month contract Inside of IR25 £750 - £800 per day My client is seeking a highly skilled software engineer to join its AI/ML team, contributing to the development of cutting-edge applications … that accelerate drug discovery and enable personalised therapies. The ideal candidate will have strong Python backend development experience, preferably with FastAPI, and be proficient in cloud-native infrastructure (Google Cloud preferred), DevOps practices, and automated testing. While a background in life sciences is a plus, a passion for improving ...

Senior Backend Developer (PHP) - £55,000 - On-site The Team & Technology The Web Development team is a core part of the business, responsible for building and maintaining the digital platforms that power our user experience. We manage the websites that onboard all users, the customer portals used ...

Senior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (UK) Are you ready to build the core systems that power one of the fastest-growing cybersecurity platforms on the planet? This is your chance to join a research-driven, venture-backed security scale-up that’s trusted … funding, and scaling aggressively worldwide, they’re on a mission to reshape how organisations stay ahead of real-world cyber threats. As a Senior Backend Engineer , you’ll play a key role in building scalable, high-performance backend systems that ingest, process, and serve data on millions ...

Senior Backend Engineer (PHP) - OOP, PHP, MySQL, TDD - Fareham, Hampshire. This is an in office role. - Salary circa £60,000 plus benefits An exciting new opportunity for a Senior Backend Engineer to join an entrepreneurial business based in Fareham. Working within a dedicated LAMP environment and reporting ...

Senior Backend Engineer (PHP) - OOP, PHP, MySQL, TDD - Fareham, Hampshire. This is an in office role. - Salary circa £60,000 plus benefits An exciting new opportunity for a Senior Backend Engineer to join an entrepreneurial business based in Fareham click apply for full job details ...

Developer Salary: Up to £60,000 + Performance Bonus (up to 10%) An innovative technology company is seeking a PHP Developer to join their growing team. This organisation is dedicated to delivering cutting-edge digital solutions and security-focused applications that protect users across multiple platforms. As part … backend development team, you will play a key role in building and optimising systems that power customer onboarding, account management portals, and APIs for a suite of security products. This is an opportunity to work on high-traffic applications in a fast-paced environment, using modern technologies and best ...

Senior Backend Software Engineer A rapidly scaling, AI-driven health-tech organisation (Series A funded) is hiring an experienced Senior Backend Engineer to help build and scale the backend infrastructure powering cutting-edge clinical knowledge tools used by hundreds of thousands of clinicians globally. This … small, highly capable team of clinician-engineers at the forefront of AI in healthcare. The Opportunity You will design, build, and optimise cloud-first backend systems, with a strong emphasis on AWS Serverless, LLM-powered workflows, and highly reliable production infrastructure. This is the chance to help define ...

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some … remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving ...

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some … remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving ...

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some … remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving ...

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some … remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving ...

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some … remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving ...

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some … remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving ...

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some … remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving ...

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some … remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving ...

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some … remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving ...

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some … remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving ...

Back-End Developer Home-based within the UK About Us At Family Action, we transform lives by providing practical, emotional, and financial support to those experiencing poverty, disadvantage, and social isolation.Since 1869, we’ve been building stronger families, and today, we work with over 60,000 families across more … thousands more through national programmes and grants, helping everyone find the tools to overcome challenges and thrive.We’re now looking for a Back-End Developer to join us on a full-time, permanent basis, working 37 hours per week. The Benefits - Salary of £43,042 per annum (inclusive ...

Title : Back End Developer Location : London, Hampshire, Surrey, Greater London Salary : £60,000 - £80,000 We are seeking a talented .NET Core Developer to join our dynamic development team. You'll play a key role in designing and implementing core modules for our innovative software solutions. Working closely ...

Fully Remote Award-Winning Agricultural Technology Software Company Competitive salary plus company share scheme Chief Technology Officer (CTO) - Hands-On Back-End Developer Remote-Friendly | London HQ | Award-Winning Agricultural Technology Software Company Join an award-winning agricultural analytics software company that's redefining sustainable food production through data … Academic and Professional Background Degree/Masters/PhD in Computer Science, Data Science, or a related discipline Proven experience as a Back-End Developer/Engineering Lead/CTO in data-heavy environments Demonstrable history of technical excellence and leadership in commercial software development Technical Expertise Advanced proficiency ...