12 of 12 Backend Developer Jobs in the South East

Job Title: Backend Developer - NodeJS - TypeScript - GKE Location: Paddington (Hybrid) Salary/Rate: Up to £455 per day (Inside IR35) Start Date: 28/04/2025 Job Type: Contract Company Introduction Our client is a leading UK Telecommunications service provider, they are urgently seeking a Backend developer specialising in NodeJS, TypeScript and Google Kubernetes Engine. Required Skills/Experience The ideal candidate will have the following: NodeJS: Efficient run time for building server-side applications. TypeScript: Open-Source programme language superset of JavaScript with additional features. GKE (Google Kubernetes Engine) Managed service for deploying … and scaling containerised applications. Job Responsibilities/Objectives Expert Backend developer with extensive experience in NodeJS, TypeScipt and GKE required for a 6 month contract. A Senior Technical Leader has proven extensive experience or a proven track record of handling multiply projects or larger, more complex systems then More ❯

Senior Backend Developer Location: Hybrid - London Package: Negotiable + Benefits We are seeking a skilled and motivated Senior Backend Developer to work on our Platform. It is a custom-built online quote, bind and formal documentation issuance platform, that also offers a range of analytics to … debug server issues, providing timely solutions. Implement security and data protection measures. Keep up to date with emerging trends, technologies, and best practices in backend development. About you: Extensive Experience as a Backend Developer or similar role. Proven high proficiency in ASP.NET and .NET (C#) and SQL. … Experience with backend frameworks and libraries. Familiarity with database systems, both relational and NoSQL. Understanding of RESTful APIs and other web service technologies. Understanding of DevOps practices and CI/CD pipelines. Familiarity with testing frameworks and test-driven development. Security awareness and the ability to implement security best More ❯

Senior Backend Developer – Hybrid | c. £70,000 Are you an experienced Backend Developer who thrives in a collaborative, fast-moving environment? We're working with a well-established, privately owned online travel business undergoing a major digital transformation – and they’re now looking to bring in … a talented developer to help shape the next phase of their tech journey. What You’ll Be Doing: You’ll lead on rebuilding a high-volume pricing platform, modernising legacy systems, and supporting complex backend architecture. While the role leans heavily towards backend work, you’ll occasionally … to front-end projects to ensure seamless integration across systems. Key Responsibilities: Rebuild and modernise existing systems with minimal PHP maintenance. Design and develop backend services in C# and PostgreSQL . Collaborate on front-end features using Node.js and React when needed. Support Python-based AI content projects. Apply More ❯

Golang Developer/Backend Software Engineer (Go/Golang) London/WFH to £95k Are you a backend focussed Software Engineer with Go/Golang coding skills and real-time messaging experience? You could be progressing your career in a senior, hands-on role at a global … cryptocurrency market data and trade execution technology company that is experiencing great success and is growing as a result. As a Golang Developer/Backend Software Engineer you will work on cutting edge systems that handle thousands of messages per second from a diverse range of external APIs … technical discipline You have a personal interest in traditional financial markets or the cryptocurrency space What's in it for you: As a Golang Developer/Backend Software Engineer you will receive a comprehensive package: Salary to £95k Bonus Continual learning and self development opportunities working on cutting More ❯

Backend Developer (Node.JS) 5 days per week in the office Up to £60K London based A London based start-up is looking for a highly talented back-end engineer to help them craft their market changing technology platform. This is an opportunity to be a part of a … skilled, fun and exciting team, working on a live product. Key Responsibilities: Design, develop, and maintain scalable backend systems using Node.js. Collaborate with the product team to develop and refine the backend components of our web applications. Build and maintain backend services. Write unit tests and conduct … thorough testing of backend components to ensure reliability. Build and optimise RESTful APIs to support front-end applications and ensure seamless integration. Integrate new third-party APIs to augment our data sources and functionalities. Implement and adhere to best practices for securing APIs. Utilise databases such as PostgreSQL to More ❯

Job Title: Golang Backend Developer Location: Osterley, UK Job Type: Full time contract, 12 months Summary: • We are seeking a highly skilled and experienced Back-End Developer with advanced expertise in Go (Golang), data analytics, and cloud-based backend services. This individual will play a key … APIs, processing data pipelines, and supporting front-end web applications with real-time analytics and insights. Technical Expertise: • Independently develop and maintain high-performance backend services using Go (Golang). • Design and implement RESTful APIs and GraphQL endpoints to support front-end applications. • Process and optimize large-scale data … and reporting. • Write clean, maintainable, and efficient code that adheres to best practices and coding standards. • Utilize AWS cloud services for scalable and secure backend application deployment. • Ensure robust data storage and management using PostgreSQL and other database solutions. • Implement authentication, authorization, and security best practices in backend More ❯

Are you an experienced Java Back-End Developer looking for a new role? Do you want to be part of a forward-thinking team? If so, we have the perfect opportunity for you! Our client, an award-winning analytics company who optimise businesses productivity and performance, are looking for … a Senior Backend Developer to join their team on a full-time basis in West Sussex. What You'll Do: • Develop server-side applications & APIs using Java, Spring Boot. • Optimise performance, security, and scalability. • Implement secure and efficient data storage solutions. • Work closely with front-end, product, and More ❯

an award-winning digital agency, based in the suburbs of West London. Due to our continued growth and success, we're recruiting for a backend Junior PHP Developer to work on our (Sitepad Software) to join us, either remotely or in our spacious canal-side studio. Sitepad CRM … the chance to work with our development team, working collaboratively on digital solutions and bespoke software solutions. Qualifications: Industry experience as a Junior PHP developer PHP 8 (has at least worked with PHP 7) MySQL HTML/CSS (good knowledge of Sass would be a plus) Can write high … control, preferably git Excellent problem-solving skills. Strong communication and collaboration skills. Ability to work independently and meet deadlines. Responsibilities: Develop and maintain the backend of our web applications using PHP. Integrate external APIs to enhance the functionality of our applications. Collaborate with the frontend development team to ensure More ❯

Senior Backend Engineer London-based tech company helping clients engage in marketing strategies with audiences in virtual worlds. Your Focus: As a Senior Backend Engineer focused on Data Pipelines and API Optimisation, you’ll be central to our platform's performance and scalability. You’ll design, build, and … on the systems that handle data ingestion, transformation, and delivery - ensuring they are scalable, reliable, and performant. You should have a strong background in backend engineering, particularly around distributed systems, database optimisation, and API development. You’ll work with technologies like JavaScript and TypeScript to build robust services that … meet high standards for performance and reliability. This role is ideal for someone experienced, self-driven, and excited about leading backend projects involving large-scale data handling and API improvements. Your technical leadership will help evolve our infrastructure and mentor other engineers as we scale. Skills, Knowledge, and Expertise More ❯

Overview As a Server Software Developer/Engineer, you will contribute to the design, implementation and support of features/functionality. You will collaborate with a team of engineers to design and build best-in-class experiences for our users. NOTE: This role will be 4 days a week … Computer Engineering, or in a relevant field. Experience with a cloud platform: AWS, Google Cloud, etc. Essential Skills Several years of experience in a backend Java development role. Strong understanding of relational databases and proficiency with a relational DB. Strong knowledge of RESTful API design. Excellent understanding and experience … solving. Excellent verbal and written communication skills. Good working knowledge of revision control and code review tools like Git/Github. Experience Comfortable writing developer tests. Experience working in high performance Agile Scrum teams. Experience with distributed computing. Experience in web development. Skills with Java/Kotlin. Experience working More ❯

of a problem and working with others to find the right solutions for our clients and their audience. We want to welcome a new developer, with at least 2 years back-end experience gained in a commercial environment, to our close-knit team. We don't mind what specific More ❯

of processing large volumes of data. In this role you will be building a frontend environment (both cloud & desktop) in React and building a backend that can accelerate AI models at in C++. You must have experience in refactoring codebases, managing petabytes worth of data and have familiarity with More ❯