Senior QA Engineer

Madbox is a fast-growing mobile gaming company known for its unique game development approach and the successful Pocket Champs game. As a Senior QA Engineer, you will be the quality owner for Pocket Champs, involved from pre-production to delivery. This role requires partnering with various teams to anticipate risks, define acceptance criteria, and ensure high-quality releases, directly impacting millions of players daily in a dynamic, tech-driven environment.

Must Have

• Represent QA from earliest stages of pre-production
• Identify risks and define clear, testable acceptance criteria
• Build and maintain efficient test strategies (structured and exploratory)
• Own and manage the bug backlog (triage, prioritize, track, communicate)
• Investigate, reproduce issues, analyze logs, identify patterns
• Validate fixes and ensure feature stability, performance, usability, high-quality releases
• Collaborate closely with developers, designers, PMs, analysts, artists
• Contribute to process improvements, automation ideas, QA maturity
• 3+ years of experience in QA
• Strong understanding of mobile gameplay, UX, game-feel, clarity
• Skilled in building and adapting test strategies
• Excellent bug investigation and issue isolation skills
• Experience owning or managing a bug backlog
• Strong communication skills (constructive challenge, team alignment)
• Proactive and autonomous, comfortable taking ownership
• Advanced level of English

Good to Have

• Familiarity with logs, monitoring tools, build systems, or CI/CD
• Previous experience working on a scaled mobile game

Madbox is a fast-growing mobile gaming company with a very unique way of developing games. Everything has been made for teams to take as much ownership as possible, unleash their creativity, bring performance, and have as much fun as possible.

In July 2022, we launched our Pocket Champs game worldwide which quickly became one of the top-grossing games in its category. In our fast-paced, tech-driven environment, we continuously innovate by developing and updating our proprietary modules, along with integrating third-party ones, to enhance game functionalities, ensure precise analytics, and comply with evolving regulations. This dynamic ecosystem requires meticulous coordination to keep our games at the forefront of technology and user experience.

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At Madbox, QA plays a key strategic role. We work in a shift-left approach, meaning QA is involved from the very beginning of feature conception and pre-production—not only at the end of development. As a Senior QA Engineer, you will be the quality owner for Pocket Champs, partnering closely with designers, developers, and PMs from day one to anticipate risks early, shape acceptance criteria, and ensure smooth delivery.

Your ownership and expertise will directly impact millions of players each day.

##### Your future responsibilities and scope:

• Represent QA from the earliest stages of pre-production, participating in feature ideation and kickoffs
• Identify risks early and help define clear, testable acceptance criteria
• Build and maintain efficient test strategies, combining structured test cases with exploratory testing
• Own and manage the bug backlog: triage, prioritize, track, and communicate issues clearly with the team
• Investigate and reproduce issues, analyze logs, identify patterns, and propose leads to developers
• Validate fixes and ensure feature stability, performance, usability, and high-quality releases across devices
• Collaborate closely with developers, designers, PMs, analysts, and artists to deliver cohesive, polished features
• Contribute to process improvements, automation ideas, and overall QA maturity within the Pocket Champs team and Madbox

##### The profile we are looking for:

• 3+ years of experience in QA, ideally in mobile gaming, LiveOps, and/or fast-paced production environments
• Strong understanding of mobile gameplay, UX, and how to evaluate game-feel and clarity
• Skilled in building test strategies and adapting them to evolving requirements
• Excellent bug investigation skills and ability to isolate issues thoroughly
• Experience owning or managing a bug backlog
• Strong communication skills with the ability to challenge ideas constructively and align teams
• Proactive and autonomous - comfortable taking ownership of quality from conception to release
• Advanced level of English
• Familiarity with logs, monitoring tools, build systems, or CI/CD is a plus
• Previous experience working on a scaled mobile game is a plus

At Madbox, we value the mindset and how you can fit with our culture by sharing common values and creating great games together.

We are passionate, always pushing to the next level to learn new things. We are creative and innovative, and most of all, team players 🙏

Do you recognize yourself in this mindset? Apply today and come meet us !!!

##### How do we hire at Madbox?

• Meet the recruiter
• Meet the direct manager
• Home Assignment
• Meet the team
• Final interview with Leadership