Frontend Developer (React)

TL;DR

Frontend Developer (React): Build and maintain React applications using TypeScript, implementing reusable component architecture and modern frontend best practices with an accent on state management with RxJS, API integration with Axios, and styling with Sass. Focus on handling async operations, authentication, error handling, and collaborating on code reviews and TypeScript migration.

Location: Full Remote • Warszawa (Poland)

Company

IT consultancy firm that helps startups, mid-sized and large corporations create and deliver innovative technologies in AI, ML, BI, Web, and Automation for industries like Telecom, Energy, Bank, Insurance, Pharma, Automotive, e-commerce.

What you will do

• Build and maintain React applications using TypeScript and reusable component architecture.
• Manage application state with RxJS and handle data fetching, async operations, API integration using Axios.
• Style components with Sass for responsive, accessible, consistent UIs across platforms.
• Integrate with REST APIs, handling authentication (JWT, OAuth), authorization, error handling, and security.
• Collaborate on code reviews, technical decisions, and migrate codebase to TypeScript.

Requirements

• Solid React expertise.
• TypeScript knowledge.
• Building reusable and maintainable component structures.
• Managing application state using RxJS.
• Handling API requests and asynchronous operations with Axios.
• Styling components with Sass.

Nice to have

• Knowledge of REST API concepts.
• Experience with APIs, including authorization/authentication (JWT, OAuth), error handling, JSON serialization, DTOs, HTTP status codes.
• Understanding security best practices (CORS, XSS).
• C# / .NET experience or other object-oriented languages with solid OOP principles and architectural patterns.

Culture & Benefits

• B2B contract.
• Fully remote work.
• Opportunity to work on impactful projects in the aviation industry.