Senior Software Engineer

Legend is hiring a Senior Software Engineer reporting directly to our Senior Engineering Manager.

This is an opportunity to shape the technical foundation of a high-growth product in the competitive gaming space — a market scaling rapidly worldwide. You’ll help design and implement the backend and platform architecture that powers real-time tournaments, delivering scalable, secure, and high-performing systems players rely on.

You’ll collaborate closely with engineers, product managers, and designers to deliver high-quality solutions while applying modern practices like Domain-Driven Design, SOLID, and GRASP. If you thrive in fast-paced environments, enjoy tackling tough scaling challenges, and want to shape the future of competitive gaming, this is your chance to make your mark.

In this role, we value diverse perspectives and encourage you to apply even if you don’t meet every qualification listed.

Your Impact

• Design and implement application architecture that is scalable, maintainable, observable, and high-performing.
• Write clean, efficient, and well-documented Ruby/JavaScript (or other backend language) code.
• Conduct code reviews, review architecture, and contribute to engineering best practices.
• Identify and optimise performance bottlenecks across systems.
• Collaborate closely with cross-functional teams to deliver impactful features.
• Ensure application security, implementing safeguards against vulnerabilities.

• Proven experience delivering large-scale systems in production.
• Strong grounding in Domain-Driven Design, API-first architecture, and software design patterns.
• Proficiency in JavaScript (React/Next) or another backend language, with knowledge of Ruby as a plus.
• Experience with Pub/Sub, websockets, and Server-Sent Events (SSE).
• A strong product engineering mindset — able to translate requirements into technical designs and ship features end-to-end.