Senior Front-end Developer (React.js)

Welcome to Welltech – a global IT powerhouse specializing in cutting-edge Health & Fitness mobile applications. With an impressive 200M+ installs and a suite of 6 revolutionary apps, we are positively transforming the lives of millions, nurturing healthier lifestyles and overall well-being.

With a solid six-year presence in the international market, Welltech boasts a dynamic team of over 600 passionate professionals across the globe. From intuitive nutrition trackers to innovative fitness solutions, we empower individuals to embark on a transformative journey toward optimal health and happiness.

We are looking for an experienced Front-end Developer who is passionate about what he does and is ready to be part of a team that creates the #1 apps in the world in the Health & Fitness category.

With us you will:

 - Work with modern tech stack: React 18+, React-Query, Styled Components, TypeScript 5+, Vite

- Develop, deploy, and support React-based services, admin panels

- Development of internal services like Page Builder

- Write new functionality of the existing product

- Support and enhance the existing monitoring system (Sentry)

- Ensure services security in production environments

 - Writing unit tests

- Documenting, diagramming

- Share experience with the team

Your professional qualities:

- 4+ years of experience in Front-end development, React — 3+ years

- Deep knowledge of JS (ES6+)

- Solid knowledge of Core Web Vitals

-  Redux Saga

- Experience with TypeScript

- Deep knowledge of React and awareness of its ecosystem

- Knowledge of “how the web works”

- Knowledge and hands-on experience with REST APIs

- Knowledge and understanding of SOLID principles

- Knowledge of design patterns and practical implementation experience

- English level - Upper Intermediate+ (written/spoken)

- Have the will to make an end user's life better/easier 🙂

Nice to have:

- Hands-on experience with Material UI and understanding its guidelines

- Next.JS and SSR approaches

- Bundler configuration from scratch

In our team we value:

• Sociability. Team update, regular communication with the working group on current projects in written (chats) and verbal formats (stand-ups and other meetings). Openness to communication. Ability to formulate tasks clearly and concisely

• Results orientation. Willingness to bring your tasks in line with the team and company global goals, to implement the necessary changes

• Responsibility. Attention to details, autonomy, willingness to take on obligations and comply with agreements

• Proactivity. The ability to set goals and achieve them. Creating opportunities without waiting for them to appear

• Orientation to development and self-learning, interest in new technologies. A constant desire to learn and develop your skills, gain new experience

We offer a fair level of compensation that will be appropriate for the candidate’s expertise and level. Welltech is not only about great benefits but also about great culture. All our specialists are offered incredible opportunities for professional and career growth, flexible work environments, and the ability to suggest ideas and drive changes. Check out some of our products:

• Muscle Booster — musclebooster.fitness

• Yoga-Go — yoga-go.fit

• FitCoach — fitcoach.fit

• WalkFit — walkfit.pro

• Omo — bit.ly/OMOio

Candidate journey: ⭕️ Intro call ---⭕️ Tech Pre-interview (30 min.) ---⭕️ Tech Interview (1.5 h.) ----⭕️ Final Interview (1 h.)

As a part of our team, you’ll have the opportunity to develop and implement your own ideas, while helping make the world a better place!