Frontend Engineer (iGA)
sigmaworld · Belgrade, Serbia
About The Role
Employment Type: Full- time
About SiGMA Group
Founded in 2014 and headquartered in Malta, SiGMA Group now employs over 250 professionals across six global offices, including Malta, Cyprus, Serbia, Armenia, Brazil , and the Philippines . SiGMA is a global leader in gaming, emerging tech, affiliate marketing, events, and media. It is best known for its marquee summits, such as SiGMA World in Rome , and initiatives like the iGaming Academy. The company’s culture champions inclusivity, sustainability, collaboration, and philanthropic impact under its SiGMA Foundation initiative
Role Overview
We are seeking a talented and detail-oriented Front-End Engineer (React) to design, build, and maintain high-quality user interfaces for a brand-new eLearning platform . This role is responsible for translating business and user requirements into responsive, accessible, and performant web experiences. The ideal candidate combines strong technical ability with a user-centric mindset and works effectively with product, design, and back-end teams to deliver polished solutions. The application is deployed via CDN and built on cloud infrastructure, requiring an understanding of modern front-end delivery, caching, and performance optimization in distributed environments.
Key Responsibilities
- Develop and maintain responsive, high-performing web applications and user interfaces using React and TypeScript
- Optimize application delivery through CDN strategies, caching mechanisms, and asset optimization
- Ensure applications are optimized for speed, usability, accessibility, and cross-browser compatibility
- Build reusable components and contribute to front-end architecture and design systems
- Integrate front-end applications with APIs and back-end services in a distributed, cloud-based environment
- Troubleshoot, debug, and resolve front-end issues in development and production environments
Key Skills & Competencies
- Strong experience with React and TypeScript
- Solid understanding of responsive design, mobile-first development, and cross-browser compatibility
- Knowledge of front-end performance optimization techniques
- Strong experience integrating with APIs (REST and/or GraphQL ) in production environments
- Understanding of accessibility standards and best practices
- Familiarity with testing frameworks and front-end testing practices
- Strong debugging, architectural thinking, and problem ‑ solving abilities
- Understanding of iGaming audiences and digital engagement patterns is a plus
Preferred Experience
- BSc in Computer Science, Software Engineering, or a related field, or equivalent practical experience
- 3+ years of p roven experience as a FE Engineer, FE Developer, or similar role
- Experience building production-grade web applications
- Exposure to design systems, component libraries, and reusable UI frameworks
- Experience working with CI/CD pipelines and modern development workflows
- Experience deploying front-end applications on AWS (e.g., S3, CloudFront), including CDN caching strategies and performance optimization
- Experienc e with analytics, monitoring, and debugging tools is beneficial
- Experience building SPAs for high-traffic or performance-critical platforms
Why SiGMA Group?
- Grow with us – Be part of SiGMA’s global expansion and make your mark .
- Free iGaming Academy access – Learn the ins and outs of the industry with access to courses .
- Travel perks – Visit our international offices and attend industry events worldwide .
- Performance rewards – High performers are recognized and fast-tracked with annual reviews and bi-yearly performance checks ins .
- Interest-free car loan after probation ( T&Cs apply )
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