About the job

Online Filings, a technology-driven platform simplifying business administration for entrepreneurs and small business owners, is seeking a Senior Software Engineer to lead the architecture and development of its next-generation web applications and APIs. The role involves technical leadership, system design, hands-on coding, and mentoring junior engineers, with an emphasis on scalable, secure, and high-performance solutions. Responsibilities span full-stack development with TypeScript, ReactJS, Next.js, Node.js, Express, and PostgreSQL, alongside integration of external APIs (AWS, Stripe, Zendesk, Twilio, HMRC, etc.), implementation of CI/CD best practices, and active contribution to product innovation. Candidates must have a minimum of four years’ professional experience, strong leadership and database expertise, and proven ability in delivering enterprise-grade solutions. The position offers a hybrid work model in London, competitive compensation (£50,000–£65,000 plus bonus), private health insurance, generous leave, pension contributions, and visa sponsorship (limited to candidates already based in the UK). This opportunity is ideal for engineers passionate about technical excellence, innovation, and empowering entrepreneurs through technology.