1 to 25 of 39 Permanent 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 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 ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product ...

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 ...

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 ...

Location: London, UK Industry: Investment Banking We're looking for an experienced Backend Developer to join a leading investment bank and help drive innovation that empowers people and businesses across Asia, Africa, and the Middle East. This role is part of the Blade function, delivering strategic initiatives that … make a real impact. Prior banking experience is highly desirable. The Key Responsibilities As a senior developer, you'll be driving our platform forwards and delivering quality solutions to business-critical customer requirements. Based in London, you will collaborate in a dynamic global team with fellow technologists, business analysts ...

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 ...