Senior TypeScript Developer: Scale APIs for 4.7M Members

basicfit; Tilburg; On-site; EUR 52,000 - 74,000; Full time

Benefits offered by this job

Office near Tilburg Central Station

GoodHabitz & LinkedIn Learning

4 days in office + 1 day remote

Travel expense reimbursement

Bicycle plan

Home-working allowance

Pension scheme

Gym access

Job summary

Basic-Fit is seeking a Senior TypeScript Developer to shape how the team works, with a backend focus but frontend touch when needed. Based in Tilburg, you’ll build APIs that scale to millions of users across Europe, and help define the engineering direction alongside a cross-functional team.

Join a tech-forward, international environment with a Plan-T office near Tilburg Central Station, learning from top tools and benefiting from flexible workdays, strong growth opportunities, and competitive

Qualifications

• Proven experience with backend tech stack and scalable APIs.
• Strong TypeScript background and API design skills.
• Ability to own tasks, manage risk and drive improvements.
• Comfortable collaborating in a fast-moving, cross-functional team.

Responsibilities

• Build and maintain APIs handling millions of requests.
• Define service level objectives for APIs and systems.
• Drive structural improvements toward reliability and performance.
• Contribute to front-end code when needed to ship features.
• Support with architecture, documentation, and bug solving.
• Help shape the long-term engineering roadmap.

Skills

API design

TypeScript

Backend development

Team leadership

Problem solving

Collaboration

AI tooling

Ownership

Tools

Nest.js

Postgres

Redis

Azure

GitHub Copilot

Next.js

Playwright

Prisma

Job description

Basic-Fit is seeking a Senior TypeScript Developer to shape how the team works, with a backend focus but frontend touch when needed. Based in Tilburg, you’ll build APIs that scale to millions of users across Europe, and help define the engineering direction alongside a cross-functional team.

Join a tech-forward, international environment with a Plan-T office near Tilburg Central Station, learning from top tools and benefiting from flexible workdays, strong growth opportunities, and competitive