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Über
prediction market platform , enabling users to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs.
The platform is built as a peer-to-peer marketplace without a centralized counterparty, aggregating diverse perspectives into transparent, market-based probabilities that reflect collective expectations about future events.
The company is experiencing rapid growth in transaction volume and user adoption, with a mission to provide a trusted, data-driven platform powered by reliable, scalable, and technically robust infrastructure. About the Role The company is seeking a
Senior QA Engineer
to build its
quality assurance function from the ground up .
This is a
foundational role : you will define testing strategy, determine what to test, and decide when code is ready to ship. You will build
automated test infrastructure , establish release processes, and eventually hire and mentor a small QA team to scale the function.
This role reports to senior leadership on the DeFi/product engineering side and offers high ownership and influence over product quality standards. Key Responsibilities Automated Test Infrastructure Build automated test suites from scratch covering web applications, backend APIs, and critical trading flows. Stack selection is flexible (TypeScript, Playwright, or similar). Release Quality Define and manage release testing processes to ensure structured, reliable releases without slowing down development. Product Coverage Understand the product deeply to identify critical flows to test, including trading, market creation, settlement, and edge cases affecting user funds. CI/CD Integration Integrate automated tests into the deployment pipeline to catch issues before production deployment. Bug Tracking & Visibility Track issues, coordinate fixes with engineering teams, and maintain clear quality metrics. Team Building Hire and mentor additional QA engineers as the function scales. Requirements
3+ years in
QA engineering or SDET roles Experience with
automated testing frameworks
(e.g., Playwright, Cypress) Experience in
trading, fintech, or financial products Familiarity with
crypto/DeFi platforms or blockchain technologies Full-stack testing experience ( web applications and backend APIs ) Experience with
TypeScript or Python
for test automation Experience with
CI/CD tools
(e.g., GitHub Actions, CircleCI) Nice to Have
Experience at
prediction markets, sports betting platforms, or trading exchanges Experience
leading or mentoring a small QA team Background in
performance and load testing Experience with
mobile iOS testing Exposure to
security testing
Sprachkenntnisse
- English
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