The posting, in SEON's own words
archived Sep 11, 2026SEON is the command center for fraud prevention and AML compliance, helping thousands of companies worldwide stop fraud, reduce risk and protect revenue. Powered by 900+ real-time, first-party data signals, SEON enriches customer profiles, flags suspicious behavior and streamlines compliance workflows - all from one place. SEON provides richer data, more flexible and transparent analysis, and faster time to value than any other provider on the market. We’ve helped companies reduce fraud by 95% and achieve 32x ROI, and we’re growing fast, thanks to our partnerships with some of the world’s most ambitious digital brands like Revolut, Wise, and Bilt.
ABOUT THE ROLE & THE TEAM:
We are looking for a senior, hands-on Test Engineer whose primary strength is Python automation. You will own end-to-end quality for key product areas, build reliable automated coverage across our API and service layer, and raise the quality bar with every release. This is not a tests-only role. We need someone who can drive the right conversations, propose solutions, and help the team ship faster with confidence. You will be expected to write production-quality Python automation, lead test strategy decisions, and guide others in how we approach coverage and implementation. We are actively migrating our existing Python automation suite to Playwright. Familiarity with Playwright is a plus, and this person will play a meaningful role in that migration, but the immediate priority is deep Python expertise and strong API testing chops. This role is based in our Budapest office on a hybrid schedule
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WHAT YOU’LL DO:
Act as a Quality Steward for critical backend services, APIs, and data flows, prioritizing test strategies based on customer impact and real-world risk rather than just arbitrary code coverage. Design, implement, and maintain automated test suites in Python, covering API, integration, and service-level testing. Lead automation design decisions: what to automate, where it sits in the test pyramid, and how to keep suites stable, fast, and maintainable. Build and improve our Python test framework with a focus on reliability, clarity, speed of execution, and ease of contribution. Partner with developers and product managers during the requirements and design phases to build testability into the system architecture before code is written, review test-related code including output from AI tooling, and guide unit and integration testing practices. Debug complex failures across environments by leveraging production telemetry (logs, metrics, and traces), ensuring we learn from real-world anomalies to continuously improve our automated coverage. Define and maintain (/Continuous Deployment) quality gates in GitHub, including how tests run, how failures are triaged, and what release-ready means. Develop practical test data strategies that support both automated and exploratory testing. Contribute to non-functional testing, specifically performance, reliability, and security-by-default (e.g., validating authorization boundaries, tenant isolation, and abuse paths)for critical services. Mentor other QA engineers and developers on Python automation best practices and day-to-day quality habits. Participate in the active migration of our Python automation suite to Playwright, contributing to framework decisions and implementation alongside the team.