
Illuminos Solutions is a creative team of designers and developers specializing in business automation and SaaS product development. They offer end-to-end solutions to help businesses streamline…

Illuminos Solutions is a creative team of designers and developers specializing in business automation and SaaS product development. They offer end-to-end solutions to help businesses streamline…
We’re looking for a Medior Front-End Developer to join us on-site in Mostar and help build modern SaaS products for an international market.
We work on real production applications with real users, real traffic, and clear engineering standards. We’re looking for someone who takes ownership, writes high-quality code, and wants to build a product long-term — not just “complete tasks.”
Tasks
Technologies we use
React
Next.js
Tailwind CSS (or similar utility-first styling)
JavaScript (ES6+) (TypeScript is a plus)
REST API integrations
Git (feature branching, pull requests, code reviews)
What you’ll do
Build and maintain front-end features using React + Next.js
Requirements
What we expect
Nice to have (not required)
TypeScript
Testing experience (e.g., Jest, React Testing Library, Playwright/Cypress )
Experience with a UI library or design system (e.g., MUI/Chakra/AntD , or internal systems)
Strong understanding of
Benefits
What we offer
Work on real products (no agency churn)
Technically challenging work with clear standards
Real impact on product architecture and direction
Long-term collaboration and stability
A comfortable on-site work environment in Mostar
Compensation based on experience and skill level
Your next opportunity is in here somewhere. Sign up to explore 52,000+ startups and their open roles. No spam. No gamification. Just jobs.
52,000+
Startups
65,000+
Open Roles
1,400+
New This Week
Implement responsive UI with strong attention to UX details
Integrate the UI with backend services via REST APIs (data fetching, auth flows, error handling)
Help shape and improve front-end architecture (component structure, state patterns, maintainability)
Improve performance and quality (rendering, bundle size, caching strategies where relevant)
Collaborate closely with backend and product to deliver features end-to-end
Participate in code reviews and help keep engineering standards high
5+ years of professional experience in front-end development
Strong knowledge of React (modern patterns, hooks, component architecture)
Experience with Next.js (routing, SSR/SEO basics, data fetching patterns)
Excellent understanding of HTML/CSS , modern layout, and UX principles (not just “it works”)
Solid JavaScript (ES6+) skills
Experience integrating front-ends with REST APIs
Ability to work independently and make sound technical decisions
Experience working on production applications (not only demo projects)
Willingness to work fully on-site in Mostar (this is not a remote role)
Great eye for design and details (pixel/UX polish)