Oglasi za posao Medior Frontend Developer

Medior Frontend Developer

Codonix d.o.o.

Beograd

online intervju

Beograd: Hercegovačka 17

27.11.2026.

JavaScript CSS Node Node.js HTML5 Docker REST Redux intermediate

Location: On-Site
Employment Type: Full-Time

About Us

We are a team dedicated to building innovative digital products with a strong focus on user experience. Our goal is to create high-performance systems that deliver seamless and engaging experiences to our users.

We are looking for a Mid-Level Frontend Developer to help us deliver features and maintain high-quality, scalable frontend applications.

What Makes This Role Interesting

  • Contribute to building high-quality, production-grade frontend applications;
  • Work alongside senior developers and technical leads;
  • Opportunity to grow into more ownership and architecture responsibilities over time.

Responsibilities

  • Build and maintain React / Next.js applications;
  • Implement user interfaces following modern React patterns and best practices;
  • Work with REST APIs and real-time services;
  • Apply state management using Redux Toolkit, Context API or similar solutions;
  • Collaborate closely with senior developers and the team to deliver features;
  • Participate in code reviews, testing and debugging;
  • Ensure applications are responsive, performant and maintainable.

Requirements

  • 2–4 years of experience with JavaScript, including experience with React / Next.js;
  • Familiarity with TypeScript;
  • Knowledge of SSR and client-side rendering;
  • Experience with REST APIs, JWT authentication and integrating external services;
  • Experience with HTML5, CSS, Tailwind and SCSS;
  • Understanding of mobile-first responsive development;
  • Good problem-solving and analytical skills;
  • Team player with strong communication skills.

Nice to Have

  • Experience with Next.js Pages Router or App Router;
  • Familiarity with iframe integrations;
  • Basic knowledge of Socket.io, Node.js or PHP;
  • Exposure to Docker and CI/CD pipelines;
  • Working with microservice-based architectures.

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