Technical Lead & Full Stack Engineer (Ruby/TS/React) — Remote

Client Server; Greater London; Hybrid; GBP 78,000 - 130,000; Full time

Benefits offered by this job

28 days annual leave

Enhanced maternity & parental leave

Home workstation setup

Learning & development budget

BUPA Health Insurance

Pension & Life Assurance

Sabbatical after 5 years

Gym subsidies & cycle-to-work

Job summary

Client Server is seeking a Senior Full Stack Engineer / Technical Lead to own the technical strategy for developer ecosystems and define API/SDK design across multiple platforms. You will mentor engineers, guide OSS collaboration, and act as a key interface with the developer community from London with remote flexibility.

You will drive architecture, oversee the full lifecycle, and collaborate with product teams to deliver scalable, high-quality tooling and APIs for a demanding B2B SaaS

Qualifications

• Senior software engineer with experience in developer tooling and APIs.
• Strong hands-on experience with Ruby, TypeScript and React.
• Experience in a product-focused B2B SaaS environment.
• Ability to drive technical decisions and raise the bar across projects.

Responsibilities

• Define technical strategy and architecture for Developer Ecosystems (iOS, Web, Infra/Automation).
• Drive best practices for API and SDK design for consistency and scalability.
• Lead complex, cross-team initiatives to expand client libraries.
• Oversee full development lifecycle from design to release and maintenance.
• Mentor junior engineers and review contributions; raise the technical bar.
• Guide external contributors and open-source collaboration; interface with developer community.

Skills

Ruby

TypeScript

React

API design

Leadership

Mentoring

Job description

Client Server is seeking a Senior Full Stack Engineer / Technical Lead to own the technical strategy for developer ecosystems and define API/SDK design across multiple platforms. You will mentor engineers, guide OSS collaboration, and act as a key interface with the developer community from London with remote flexibility.

You will drive architecture, oversee the full lifecycle, and collaborate with product teams to deliver scalable, high-quality tooling and APIs for a demanding B2B SaaS