QA Engineer

We’re looking for two QA Engineers who care about product quality end-to-end. You’ll join one of our products - TradeZella or Coupler.io - and focus on how the product works in real conditions: testing functionality, investigating edge cases, and resolving complex issues together with engineering, product, and support teams. Both roles share the same core expectations around quality ownership, debugging, and collaboration. The difference lies in product-specific focus areas outlined below: • Coupler.io is a Data Integration Platform & AI Analytics platform that requires advanced skills in working with data and API testing. • TradeZella is a Trading journaling and educational platform, which requires the entire team to be passionate about the trading domain, as well as extended UX testing skills. *If you have a preference for which product you’d like to join, please indicate it in your application. WHAT WE ARE LOOKING FOR? Testing & QA expertise (common for both roles) • Strong experience with manual testing and end-to-end validation • Experience in investigating customer issues and performing root cause analysis • Experience in building and improving QA processes • Experience with UX testing Technical skills: • Strong debugging and problem-solving skills, including log analysis (CloudWatch, Logs Explorer) • Good understanding of networks, HTTP, APIs, and web/client architectures • Experience with version control systems (GitHub, GitLab, etc.) • Experience using AI tools for workflow optimization Communication & mindset: • Ability to translate technical concepts for different audiences (engineering ↔ non-technical) • Strong sense of ownership and accountability • Structured, detail-oriented approach • Fluent English (written and spoken) Product-specific requirements For Coupler.io (Data integration platform) • Experience in API testing (working with documentation vs. real behavior, identifying inconsistencies) • Confidence validating third-party integrations across environments Would be a plus: • Experience with Playwright (TypeScript) For TradeZella (Trading journal platform) • Strong UX testing skills beyond formal requirements (user acceptance testing, business acceptance testing, usability validation) • Desire to dive into the trading domain Would be a plus: • Experience with trading platforms (testing of trading platforms or personal trading experience) Your responsibilities • Analyze requirements, test functionality, and identify defects and edge cases • Own investigation of complex customer issues through L3 support, driving root cause resolution • Partner with engineering and product to resolve issues and improve system reliability • Improve QA practices and elevate debugging and investigation standards, including AI adoption practices • Support releases and ensure stable rollouts with active post-release follow-up