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

• AI
• API
• Cursor
• Support
• OOP
• React
• Ruby
• Serverless
• TypeScript
• Web
• iOS
• JavaScript
• Slack

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