Technical Lead Ruby TypeScript Developer Experience

Salary: £100,000 - 100,000 per year

Requirements

: We are looking for a senior software engineer with experience building developer tooling and APIs.We need strong hands-on experience with Ruby, TypeScript, and React.We are looking for experience in a product-focused B2B SaaS environment.We need someone who can make technical decisions that drive projects and raise engineering standards.We value comfort using AI tools such as Claude and Cursor to improve workflows and processes.We are looking for someone who is customer- and product-focused.We need a collaborative and pragmatic technical leader with experience mentoring and guiding other engineers.We expect a thorough understanding of computer science fundamentals, including OOP, data structures, and design patterns. Responsibilities: We own the technical strategy and architecture for one or more developer ecosystems, including iOS, Web, and Infra/Automation.We define and drive best practices for API and SDK design, ensuring consistency, usability, and scalability.We lead complex cross-team initiatives to expand and improve client libraries.We oversee the full development lifecycle from design through release, maintenance, and product evolution.We mentor more junior engineers and review contributions to raise the technical bar across the team.We guide and manage external contributors and open-source collaboration.We act as a key interface with the developer community and incorporate feedback into product direction. Technologies: AIAPICursorSupportOOPReactRubyServerlessTypeScriptWebiOSJavaScriptSlack More: We are a highly regarded provider of serverless real-time infrastructure for the internet, processing billions of messages a day and powering services such as live chat, VoIP calls, and real-time pricing and stock availability across the globe.

This is a Technical Lead / Full Stack Engineer role based in London with remote working most of the time, and we meet in our dog-friendly North London office around once a month for tech talks, lunch and learns, and team collaboration. We offer a competitive package including salary up to £130k, EMI share options, 28 days of annual leave, enhanced maternity and parental leave, a personal learning and development budget, home-station set up support, BUPA health cover, pension, life assurance, income protection, a fully paid sabbatical after five years, gym subsidies, cycle to work, and more. last updated 36 week of 2026