Senior QA Engineer

Join our development team as Senior QA Engineer!

At Twin Harbour Interactive we strive to develop high-quality strategy games and make them accessible for all players around the world. In our eyes game development is a promise for fun and entertainment - that’s what we live and aim for!

As a Senior QA Engineer, you will be responsible for designing, building, and enhancing automation and test frameworks for a better backend and frontend stability of our game platform, focusing on applications used by our game teams as a service. You will work closely with our development teams to optimize testing standards and practices ensuring efficient test coverage. In addition, you will spearhead the implementation of AI-driven automated testing and decision-making around backend testing best practices.

Please submit your resume outining your relevant experience and why you are interested in joining Twin Harbour Interactive. We look forward to hearing form you!

YOUR MISSION

• Design and implement scalable automation and robust test frameworks for backend and frontend stability to ensure seamless testing processes.
• Perform advanced performance profiling and oversee end-to-end UI/UX testing strategies across all game platforms.
• Drive CI/CD pipeline improvements for continuous testing.
• Conduct security testing and cross-platform compatibility testing to identify vulnerabilities in backend services.
• Develop advanced automated tests to debug complex, multi-layered issues; and identify and resolve complex UI performance issues (rendering, lag, responsiveness).
• Implement AI-driven or script-based automated testing for game UI interactions.
• Lead technical discussions and decision-making around backend testing best practices, and guide the adoption of automation tools and practices to ensure efficient frontend test coverage.
• Collaborate with team members and our development colleagues to improve testing standards and practices.
• Contribute to the development and execution of QA strategies that align with our long-term development goals.

YOUR PROFILE

• Professional with 5+ years of experience in full-stack QA testing, backend and frontend automation.
• Skilled in creating reusable automation frameworks and scalable testing pipelines.
• Experience with performance profiling, debugging, and scalability testing.
• Strong programming skills in Java or Node.js.
• Deep understanding of game engine UI workflows (Unity).
• Excellent communication and collaboration skills to foster cross-functional alignment on quality objectives.
• First experience in mentoring other QA Engineers, Developers, etc. in test automation and quality assurance best practices.

Why You'll Love Working With Us

##### A Global Team, A Shared Purpose

Our strength lies in our diversity. With over 30 nationalities represented across our two locations, we’re united by a shared passion for strategy games and a bold vision for the future. We celebrate what makes each of us unique - our perspectives, our stories, and the paths that led us here.

##### Work Your Way

Whether you're crafting code from a harbor-view desk in Hamburg or fine-tuning design details under the Maltese sun, we support flexible hybrid work models that empower you to do your best work - wherever you are.

##### Grow With Us

At Twin Harbour, your journey matters. Our Career Path Framework and mentorship culture provide the clarity and feedback you need to take the next step – whether you’re deepening your expertise or branching into new disciplines. We invest in your growth with language courses, e-learning platforms, and support for conferences and training.

##### We’re Human First

We believe that great teams are built on trust, respect, and good humor. From game nights to casual drinks, quiz nights, and karaoke, we don’t just work together - we connect, play, and support each other like a true crew.

Join Twin Harbour Interactive

##### Where Strategy Meets Vision.

Twin Harbour Interactive is a global strategy game powerhouse, shaping the future of long-term multiplayer gaming. With offices in Hamburg and Malta, we design strategy games that bring people together - across borders and generations.

Whether you’re an expert tactician or an imaginative world-builder, there’s a place here for you to grow, thrive, and leave your mark.

About Twin Harbour Interactive

We're on a mission to create unforgettable strategy experiences. If you're curious, collaborative, and driven by impact, we’d love to meet you.

At Twin Harbour Interactive, you'll step into a creative, collaborative environment where your ideas help shape the future of long-term strategy gaming. With the agility of an indie team and the reach of a global studio, we value innovation, ownership, and bold thinking.

We're a passionate, multicultural crew with a flat hierarchy and a deep love for smart game design. Whether you're coding, creating, or coordinating, you'll have the freedom to make an impact—and the support to keep growing.

Expect meaningful challenges, curious minds, and a work setup that fits your needs. Our games are built using C#, JavaScript/HTML5, Java, and PHP—and always with players at the center.

With studios in Hamburg’s iconic St. Pauli district and sunny San Ġiljan, Malta, you’ll enjoy inspiring views, an international vibe, and a team that loves what they do.

Founded in 2025

Coworkers about 130