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Medior Frontend Developer

Codonix d.o.o.

Beograd, Hercegovačka 17

27.11.2026.

  • ugovor
  • puno radno vreme
  • 1. i 2. smena
  • online intervju za posao
  • Obaveštenje o pregledu prijave

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.

    Codonix d.o.o.

    Srbija, Beograd, Hercegovacka 17 10/1002

    PIB: 115540523

    Matični broj: 22172697

    Napomena: Poslovi.infostud.com ne vrši posredovanje u zapošljavanju u Srbiji, niti u inostranstvu. Postupak selekcije i odabira kandidata je u nadležnosti poslodavca, a odredbe ugovora o radu predstavljaju direktan dogovor između poslodavca i zaposlenog. Svi pojmovi u oglasima, koji su upotrebljeni u muškom rodu, odnose se bez diskriminacije i na osobe ženskog pola i obrnuto, osim ukoliko specifičnim zahtevima posla nije drugačije propisano.