Client Platform Developer

Please note: This is an in-house role in our Stockholm office. Remote candidates will not be considered. Unfortunately, we cannot help with relocation from other countries or VISA applications.

About Hacksaw Studios

Hacksaw Studios creates online games that run in both social and real-money modes, played by millions of people worldwide each month. To support our expanding technical landscape, we’re looking for a Client Platform Developer to join our Stockholm team.

This position focuses on primarily client-side work—building and maintaining a range of web-based products and tools, from in-game UI and back-office systems to our round-replay system and integration frameworks. However, you may occasionally work on back-end tasks as well. You’ll be part of a small but growing team that spans multiple domains, ensuring our platform remains robust, scalable, and user-friendly for both internal teams and third-party partners.

What You’ll Be Doing

• Develop and Maintain: Work on core web-based products such as our in-game UI and back-office systems.


• Integration & Collaboration: Manage client-side integrations of our games with various external platforms and support third-party studios building on our OpenRGS platform. Collaborate with back-end teams to align integration strategies with our broader platform architecture.


• Tooling & Automation: Create and maintain help-tools (e.g., scripts for changelog generation, mock clients, game launchers) to optimize workflows across different departments.


• Technical Support: Provide expertise and troubleshooting for platform-related issues, working closely with developers, QA, and customer support teams.


• UX & Visual Detail: Contribute to user-friendly interfaces and ensure a polished look and feel for our products. A good understanding of UX and a keen eye for design are preferred.

What We’re Looking For

• Proficiency in JavaScript/TypeScript or a similar language. (Experience with Haxe, our main client-side language, is a plus but not mandatory.)


• Strong Understanding of Web Technologies: Familiarity with browser APIs, cross-origin communication (e.g., postMessage, CORS, WebSockets), and third-party service integrations.


• Debugging & Problem-Solving Skills: Experience using browser DevTools, Postman (or similar tools), and a structured approach to identifying and resolving issues.


• Communication Skills: Ability to articulate technical concepts clearly to both technical and non-technical stakeholders.


• Service-Minded & Proactive: Comfortable owning problems, driving solutions, and collaborating with diverse teams.

Bonus Points:

• Experience with Git, TypeScript, Linux, bash, npm, Bun, Docker, Cucumber, GitLab, and AWS.


• Experience working with web-related C#.

If you’re a skilled web developer with a passion for building and integrating we’d love to hear from you!