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Senior Frontend Developer (React & React Native)

nextchallenge Portugal
Remote
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AI Summary

Develop and optimize user interface components using React 18+ and TypeScript for stable, long-term projects. Refactor existing code, fix bugs, and build cross-platform mobile applications using React Native. Collaborate with international teams in a fully remote environment with flexible schedules and competitive compensation.

Key Highlights
7+ years of experience as a Front-End Engineer with expert-level TypeScript and React 18+ proficiency.
1-2 years of professional experience with React Native, including SDK development for cross-platform projects.
Fully remote work with flexible schedule and unlimited paid time off.
Key Responsibilities
Performing a technical assessment of business requirements to ensure feasibility within reasonable timeframes
Fixing bugs in existing projects
Refactoring and optimising existing code
Optimising components for maximum performance across browsers
Creating new and modifying existing websites
Participating in mobile application development
Being proactive in communication with team members
Technical Skills Required
React TypeScript React Native
Benefits & Perks
Fully remote work
Flexible work schedule
Unlimited paid time off
Competitive compensation
Medical insurance support
Referral bonuses
Career development opportunities
Nice to Have
Experience with micro frontends, monorepos, or component libraries (Storybook, Bit)
Knowledge of design systems (Material UI, Tailwind, or similar)
Exposure to WebAssembly, WebSockets, or real-time applications
Experience integrating third-party tools and libraries (e.g. Trustly, Whizdom)
Ability to understand business requirements and translate them into technical requirements

Job Description


Back

Senior Frontend Developer (React & React Native)

We are looking for an experienced JavaScript developer with a strong understanding of React.

Role Overview

We are looking for an experienced JavaScript developer with a deep understanding of React. The main responsibilities will include the development of user interface components, refactoring and optimisation of existing code, and participation in mobile application development. Companies' projects are stable and long-term, with an active backlog of new front-office features.

Key Responsibilities

  • Performing a technical assessment of business requirements to ensure the possibility of their implementation within a reasonable time;
  • Fixing bugs in existing projects;
  • Refactoring and optimising existing code;
  • Optimising components for maximum performance across browsers;
  • Creating new and modifying existing websites;
  • Be proactive in communication with team members.

Required Skills & Experience

  • 7+ years of experience as a Front-End Engineer;
  • Solid background in coding pure JavaScript;
  • Strong proficiency in React 18+, including hooks, context, and modern patterns;
  • Expert-level TypeScript experience with advanced types and strict configurations;
  • Strong knowledge of state management tools (Redux, MobX, Zustand, etc.);
  • Proven experience in building SPAs, PWAs, and working with RESTful and GraphQL APIs;
  • Familiarity with front-end build tools (Webpack, Vite, Rollup) and CI/CD pipelines;
  • Solid understanding of browser rendering behaviour and performance optimisation;
  • Experience with automated testing frameworks (Jest, Cypress, etc.);
  • At least 1-2 years of professional experience with React Native;
  • Hands-on experience developing a React Native SDK for cross-platform projects;
  • Level of English language – Upper-Intermediate or higher.

Will Be a Plus

  • Experience with micro frontends, monorepos, or component libraries (Storybook, Bit);
  • Knowledge of design systems (Material UI, Tailwind, or similar);
  • Exposure to WebAssembly, WebSockets, or real-time applications;
  • Experience integrating third-party tools and libraries (e.g. Trustly, Whizdom);
  • Ability to understand business requirements and translate them into technical requirements.

The Company Guarantees You The Following Benefits

  • Global Collaboration: Join an international team where everyone treats each other with respect and moves towards the same goal;
  • Autonomy and Responsibility: Enjoy the freedom and responsibility to make decisions without the need for constant supervision.
  • Competitive Compensation: Receive competitive salaries reflective of your expertise and knowledge as our partner seeks top performers.
  • Remote Work Opportunities: Embrace the flexibility of fully remote work, with the option to visit company offices that align with your current location.
  • Flexible Work Schedule: Focus on performance, not hours, with a flexible work schedule that promotes a results-oriented approach;
  • Unlimited Paid Time Off: Prioritise work-life balance with unlimited paid vacation and sick leave days to prevent burnout;
  • Career Development: Access continuous learning and career development opportunities to enhance your professional growth;
  • Corporate Culture: Experience a vibrant corporate atmosphere with exciting parties and team-building events throughout the year;
  • Referral Bonuses: Refer talented friends and receive a bonus after they successfully complete their probation period;
  • Medical Insurance Support: Choose the right private medical insurance and receive compensation (full or partial) based on the cost;
  • Flexible Benefits: Customise your compensation by selecting activities or expenses you'd like the company to cover, such as a gym subscription, language courses, Netflix subscription, spa days, and more;
  • Education Foundation: Participate in a biannual raffle for a chance to learn something new unrelated to your job as part of your commitment to ongoing education.

Interview Process

  • HR Interview with the Recruiter;
  • A 1-hour Tech Interview;
  • A 1.5-hour Final interview with the team.

If you find this opportunity right for you, don't hesitate to apply or get in touch with us if you have any questions!

Job Specifications

Role Occupation

Remote

Location

Remote Tbilisi 🇬🇪 Lisbon 🇵🇹 London 🇬🇧 Limassol 🇨🇾 Yerevan 🇦🇲

Role Direction

Software Engineering, IT

Seniority Level

Senior

Recruiter

Elina Nesterok

Recruiter

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