Senior Fullstack Developer

ComeOn Group in short
Founded in 2008, ComeOn Group is a leading global player in the rapidly growing iGaming market. Having launched its first online brand in 2010, ComeOn Group is running a wide range of exciting brands across multiple markets. Operating more than 20 brands on its proprietary platform providing a secure, innovative and entertainment-led player experience across casino and sports betting. ComeOn Group is an international employer within the iGaming industry and has over 500 talented employees across 7 main locations.

Location : Stockholm/Umea -Hybrid

We're looking for an experienced frontend engineer to work on the migration of our web frontend platform to This role offers an exciting opportunity to modernize our tech stack, improve performance, SEO and enhance user experience.

Key Responsibilities

• Migration of our existing Java and React-based SPA to a architecture
• Monitoring and improving stability of the application
• Implementing a scalable, performant frontend solution using and React
• Collaborating with cross functional teams to ensure smooth integration of latest code
• Mentor other developers and promote best practices in modern frontend development
• Conduct code reviews and maintain high code quality standards
• Optimize application performance and implement SEO best practices
• Future proofing our frontend platform to keep us ahead of the competition
• Contribute to technical decision-making and product strategy

Required Qualifications

• Expert-level knowledge of , React and its ecosystem (react-redux etc), and modern Typescript and JavaScript (ES6+)
• Strong fundamentals of web development and good debugging skills.
• Strong understanding of web performance optimization techniques and measuring tools like lighthouse, webpagetest etc
• Experience with server-side rendering and static site generation
• Good experience building production grade applications
• Proficiency in HTML5, CSS3, Sass and responsive design principles
• Experience with modern frontend build tools
• Strong problem-solving skills and attention to detail
• Use of AI tools to write and review code

Preferred Qualifications

• Familiarity with Java, enough to understand and refactor existing code
• Experience migrating large-scale applications to modern frameworks
• Understanding of microservices and monorepo architecture Experience with containerization and cloud deployment (Docker, Kubernetes)
• Contributions to open-source projects or technical blog writing

Benefits
So what can you expect from ComeOn as a place of work?

ComeOn offers a competitive and consistent benefits package for our team members. While some benefits vary by location due to local needs and regulations, many are available company-wide, and we're proud to offer them to everyone:

• Fantastic quarterly or half-yearly team events
• Regular company events
• A 250 euro One-time Hybrid Allowance to help you set up your home office (or equivalent in local currency)
• Annual wellbeing allowance/ gym membership (location dependent)
• 40 days 'Work from Another Location' (WFAL) entitlement to work from any other location around the world
• Regular Meals at the office

At ComeOn, we've embraced a Hybrid Work model, giving our employees the flexibility to work some days at home. Our offices are thoughtfully designed to support this model, featuring practical workspaces for focused efforts and collaborative zones for dynamic creative exchanges. We believe in the power of collaboration to drive innovation and success. While our offices are known for their vibrant atmosphere, rest assured that our primary focus is on achieving results together. We prioritize efficiency and maintain a balance between hard work and camaraderie. When you visit our offices, expect a warm welcome and professional support. Choose ComeOn for your next career move, and experience a workplace that values productivity, teamwork, and the spirit of collaboration.

At ComeOn Group we value diversity and we take concrete action to ensure fairness in our recruitment process. We are committed to assessing candidates on their merit without discriminating against any applicant for whatever reason that is protected by law. We truly value you, as you are.

Want to know more about us just visit our website or any of our social media channels to take a deep dive into our culture

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• Instagram
• Glassdoor