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Senior Frontend Developer ( React)


Job Location:

Belgrade - Serbia

Monthly Salary: Not provided by the employer
Posted: 3 September 2026 (Yesterday)
Application Deadline: 1 December 2026
Vacancies: 1 Vacancy

Job Summary

About the Role

Your primary role will be building and evolving the frontend of Altiums web properties primarily as headless applications consuming data from Drupal over GraphQL while keeping the existing Drupal-integrated frontend stable and visually consistent during the ongoing migration. We are hiring for depth in React and TypeScript not for prior Drupal knowledge. Our Drupal frontend layer and deployment specifics are things a strong frontend engineer picks up in a few weeks and we will support that ramp-up.

A Day in the Life of Our Senior Frontend Developer

  • Develop features and components in React and TypeScript using the App Router and React Server Components and choosing the right rendering strategy per page

  • Integrate applications with Drupal via GraphQL and Apollo Client; implement content freshness with ISR and on-demand revalidation

  • Build and maintain reusable UI components on Radix UI shadcn/ui and Tailwind CSS aligned with the design system

  • Maintain and extend existing Drupal themes (Twig templates SCSS Pug-based markup build Webpack)

  • Own Core Web Vitals accessibility and technical SEO for the pages you ship

  • Write component tests contribute to the shared Playwright E2E suite and investigate production incidents with Sentry

  • Participate in code review and contribute to engineering standards and codebase health


Qualifications :

Who Were Looking For

  • 4 years of commercial React experience including at least 2 years with in production

  • Owns a feature end to end from design handoff through rollout and post-release verification

  • Traces a production incident from an error report to root cause without hand-holding

  • Makes technical decisions states trade-offs explicitly and updates a position when evidence changes it

  • Treats visual regressions accessibility and performance as part of done not as follow-up work

  • Pragmatic about legacy: willing to maintain an existing Drupal-integrated frontend while helping move the platform forward

  • Reviews others code constructively and raises the standard of the codebase around them


Required Technology Experience

  • Strong JavaScript and TypeScript (strict mode)

  • App Router and React Server Components in production

  • Client-side GraphQL (Apollo Client or equivalent)

  • Tailwind CSS; component library and design system principles

  • Frontend caching: ISR on-demand revalidation TTLs and cache invalidation

  • Core Web Vitals and the tooling to measure and diagnose them

  • Web accessibility standards

  • Multi-locale applications

  • SCSS and at least one template engine (Pug Twig or similar); Webpack and frontend build pipelines

  • Git and code review


Nice to Have

  • Drupal theming: templates theme libraries integrating markup

  • Storybook or another component workshop

  • Image and performance optimization with Next Image and Sharp

  • Redis and cache strategy / invalidation design

  • Marketing site instrumentation: GTM dataLayer consent management (e.g. OneTrust)

  • Technical SEO depth: structured data sitemaps hreflang across locales


Remote Work :

No


Employment Type :

Full-time


About Company

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In the sustainable food sector, we work with large food companies, providing them with professional consulting services to help them add sustainable food to their supply chains, thereby improving food safety and food quality, and improving animal welfare. Our partners include leading ... View more

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