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bsport

Senior Frontend Engineer - Freelance

Hybrid

Paris, France

Senior

Freelance

19-02-2026

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Skills

Communication Leadership TypeScript react tailwind Front-end Development Marketing

Job Specifications

We are bsport. The place to be!

bsport is an all-in-one platform combining boutique fitness and advanced technology. Our platform helps our partners manage their bookings, payroll, marketing and more, to streamline operations and boost their commercial success.

Since we launched in 2019, we have already achieved the following:

We’ve built a community of over 7 million users
In December 2024 we have finalised the biggest Series B (€30 million)
Grown our team to more than 200 employees

We’re continuing to grow to become the #1 tech partner for boutique studios in Europe and the rest of the world!

Join us to write the next chapter of your career!

About the role:

Take ownership of major frontend initiatives, help lead complex technical projects, and work directly with leadership to define the future of our platform. You’ll help us address technical debt, a complete revamp of our client interfaces, build and maintain our in-house design systems, and build scalable solutions for one of our product verticals.

Our focus for the coming years is building reliable and scalable systems, and setting a new standard for technical excellence.

What You'll Work On

Own the revamp of :13 back-office pages and features within the Booking scope (group activity and workshop list/detail views, individual appointments, member profiles, teacher substitution tools, establishment and location pages…)
Implement high-fidelity designs delivered by our dedicated designer
Write clean, maintainable React (TypeScript) code aligned with our internal design system
Work closely with internal engineers to ensure consistency and facilitate handover at the end of the mission
Participate in code reviews and uphold high quality standards throughout the project

Tech stack

Front-end: React (TypeScript), React Query, Zustand, Tailwind
Design system: bsport DS (internal)
Modern environment, quality-driven team with a strong sense of ownership (code and product)

Practical details

Duration: 6 months (Q2–Q4 2026), with possible extension
Pace: Full time (5 days/week)
Location: Remote setup possible, office in Paris 10e

Who We're Looking For

5+ years of experience in front-end development with React (TypeScript required)
Comfortable owning complex UI projects with a high volume of pages to deliver
Ability to understand product decisions to bring constructive discussions during implementation
Experience working with an existing design system
Rigorous approach to code quality, able to move fast without cutting corners on maintainability
Strong written communication skills in English
Background in a startup or scale-up, ideally B2B SaaS

What This Mission Offers

A varied mission with direct product impact in the short and medium term
A modern stack
A high-growth context with an engaged team and strong engineering standards

About the Company

About bsport: Founded in 2018 by Zakaria Mansour and Sofian Medbouhi, bsport empowers fitness studios with an all-in-one management and marketing platform to streamline operations, automate processes, and enhance member experiences. Based in Barcelona and Paris, we support 3,000+ partners across 40+ countries, serving a growing community of 600,000+ members. Recently securing a €30M Series B funding, the largest SaaS investment in our sector in France and Spain this year, we are accelerating our mission to revolutionise well... Know more