Full Stack Developer (node.js)

Location: London or Ipswich, UK (Hybrid) Employment Type: Permanent, Full-Time About Mach: MACH is Delta Capita's proprietary Distributed Ledger Technology (DLT) and workflow orchestration platform, developed to help financial institutions modernise post-trade, collateral, regulatory and operational processes. As part of Delta Capita's Technology & Solutions business, MACH combines blockchain, workflow automation and enterprise integration capabilities to deliver scalable solutions to global financial services clients. Job Description: As a Full Stack Javascript Developer at MACH, you will play a leading role in developing innovative blockchain and DLT solutions for financial services clients. You will be responsible for architecting systems from frontend, backend and database, optimising performance, and mentoring junior developers while ensuring that MACH’s technology offerings deliver exceptional user experiences. This role requires deep expertise in frontend frameworks, Node.js backend libraries, API integrations, and UX best practices. Responsibilities include; - Architect, develop responsive, high-quality web applications primarily using React and Typescript combined with backend Node.js Typescript experience. - Lead the design and development of scalable, high-performance web applications. - Implement best practices in security, accessibility, and performance. - Develop reusable software components and libraries to improve efficiency. - Conduct thorough code reviews, testing, and debugging to maintain high-quality standards. - Staying abreast of emerging trends in software development and blockchain technologies. - Provide technical leadership and mentorship to junior developers. - Collaborate with product managers, UX designers and other teams to refine application usability. - Enhance software development processes, including tooling, CI/CD pipelines and testing. As an experienced Full Stack Developer, you will have: - Proven experience in software development ideally in React and backend frameworks such as Express/NestJS. - Strong expertise in JavaScript, Node.js, TypeScript, HTML5, CSS3, and responsive design. - Knowledge of SQL and database design using RDBMS, such as PostgreSQL. - Proven experience developing RESTful APIs. - Familiarity with frontend state management solutions e.g. Redux. - Experience working with Git, CI/CD pipelines, and testing frameworks. - Experience in containerisation systems e.g. Docker and/or Kubernetes - Strong understanding of software performance optimisation techniques. - Ability to lead technical discussions, mentor junior developers, and drive best practices. - Excellent problem-solving skills and ability to troubleshoot complex software issues. - Strong collaboration and communication skills.