Full-Stack Developer (React, PHP)

TL;DR

Full-Stack Developer (React, PHP): Designing and developing frontend architectures and high-performance layouts supported by solid PHP backend logic with an accent on technical complexity assessments and creating detailed technical designs for frontend solutions. Focus on continuously researching new libraries and tools, evaluating their potential to improve development processes and product quality, and ensuring architectural consistency across all web products.

Location: On-site in Belgrade

Company

Unlimit is a global fintech powerhouse operating its own proprietary payments infrastructure across 17 global offices.

What you will do

• Design frontend application architectures from the ground up and perform technical complexity assessments.
• Deliver high-quality web layouts and functional features, ensuring robust backend support using PHP where required.
• Maintain a clean and scalable codebase through regular code reviews and efficient bug fixing.
• Continuously research new libraries and tools to improve development processes and product quality.
• Actively participate in sprint and quarterly planning, decomposing complex features into manageable technical tasks.
• Work closely with the team to ensure architectural consistency across all web products.

Requirements

• 3+ years of experience in modern Frontend development (React, Next.js or similar).
• Strong experience in designing application architecture, making strategic technical choices, and solid proficiency in backend development with PHP (integration with APIs, business logic).
• Expertise in HTML5, CSS3 (Sass/Less, Tailwind) for pixel-perfect responsive layouts, with practical experience in GitLab CI/CD, Docker, and Git.
• Proven ability to decompose business requirements into technical sub-tasks.
• Knowledge of SOLID, DRY, KISS principles and experience in writing maintainable code.
• Experience with AI-driven development tools for unit testing, documentation, code generation, context management for AI agents, and AI-powered debugging for log analysis and hotfixes.

Culture & Benefits

• Unlimit is an equal opportunity employer committed to a diverse workforce.
• Recruiting decisions are based on experience and skills, welcoming applications from all members of society.
• Artificial intelligence (AI) tools may be used to support parts of the hiring process (e.g., reviewing applications, analyzing resumes, assessing responses), but human judgment makes final hiring decisions.