Frontend Engineer

5 434 - 6 828 USDNet per month - B2B
JavaScript

Frontend Engineer

JavaScript
Franciszka Klimczaka 5, Warszawa

Perfect Gym Solutions

Full-time
B2B
Mid
Hybrid
5 434 - 6 828 USD
Net per month - B2B

Job description

Do you want to make a change in the FitTech industry with an agile, fast-moving team? How about being part of the culture that truly values your opinions and ideas? If you want to develop software that really matters and deliver the best solutions for our clients alongside a like-minded team, then you're in the right place. Be part of the digital transformation of the fitness industry!


PerfectGym has joined forces with Sport Alliance, marking a significant milestone in our mission to digitize the fitness industry globally!


The start date for this position is in February



Your position in our team


  • Join an engineering team that values mutual respect, collaboration, and a fun, supportive work environment.

  • Build smart frontend solutions that deliver the best possible user experience.

  • Work with modern technologies (e.g., React, TypeScript, MobX, Jest, MUI) as part of a cross-functional product team.

  • Design and develop highly available, scalable software components in an agile setup.

  • Think outside the box and always keep the big picture in mind!


Your profile


  • At least 3 years of professional experience in developing and operating high-availability applications.

  • Excellent understanding of JavaScript/TypeScript, including core language concepts, and solid knowledge of web technologies (HTTP, REST, CSS).

  • Strong understanding of the difference between simple jQuery-based HTML pages and large-scale, production-grade JavaScript applications.

  • Experience designing and developing web applications, as well as writing automated tests (unit tests, E2E tests, etc.).

  • Interest in emerging programming trends, strong teamwork skills in an international and multicultural environment, and confident communication in English.

  • Nice to have: hands-on experience with React routing, including React Router (react-router-dom), nested routes, dynamic routes, route protection, redirection, and performance optimization.


Your benefits with us


  • Benefits package – private medical care and a sports card to support your health and well-being

  • Flexible working hours – manage your schedule and enjoy a real work-life balance

  • Flexible work model – work fully remotely or combine it with on-site collaboration at our modern office in Warsaw

  • Flexible employment options – choose the type of contract that best suits your needs

  • Access to Udemy Business – grow your skills with thousands of high-quality online courses

  • Unique experience in the Fitness and SaaS industry – join a market-leading company in a dynamic, fast-growing field

  • International team – collaborate with talented colleagues from around the world in a diverse and inclusive environment

  • Unforgettable company events – take part in engaging team-building activities and memorable celebrations

  • No dress code – express your personal style and feel comfortable at work

  • Dog-friendly office – bring your furry friends to our pet-friendly Warsaw workspace



Tech stack

    English

    C1

    TypeScript

    regular

    HTML

    regular

    REST API

    regular

    Test Automation

    regular

    React

    regular

    CSS

    regular

    JavaScript

    regular

    Routing (React)

    nice to have

Office location

Published: 17.12.2025

Frontend Engineer

5 434 - 6 828 USDNet per month - B2B
Summary of the offer

Frontend Engineer

Franciszka Klimczaka 5, Warszawa
Perfect Gym Solutions
5 434 - 6 828 USDNet per month - B2B
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