Join COLIBRIX.ONE - Innovating the Future of Payments
At COLIBRIX.ONE*, we’re building advanced, AI-powered payment technologies that support Payment Service Providers (PSPs), Electronic Money Institutions (EMIs), and neobanks across the EU and the UK. As a fully licensed EMI (FCA reference number 927920) and a Principal Member of Mastercard, we offer real-world financial solutions that include:
- Integral card processing
- Digital wallet infrastructure
- Cross-border merchant accounts
- Alternative payment methods (APMs)
- Corporate accounts for legal entities

We’re a fast-growing team with a passion for innovation, security, and scalability. Our culture values curiosity, collaboration, and impact - and we’re looking for talented professionals who are ready to shape the future of fintech.
About the role:
We are seeking an experienced QA Engineer with a strong background in fintech and AI-assisted testing practices. You will be responsible for validating complex payment, wallet, and card flows through manual, API, integration,



and regression testing while leveraging AI tools to improve test coverage, speed up analysis, and optimize QA processes.
Tech stack:
Python, Playwright, Jira,TestRail/ Zephyr/ QASE, GitLab, Claude Code, ChatGPT.
Responsibilities:
- Manual testing across active releases (feature acceptance, smoke testing, regression testing, integration verification)
- Testing API flows and validating integrations between services
- Creating, maintaining, and optimizing test cases and regression suites in TMS (QASE / TestRail / Zephyr)
- Using AI tools to improve QA processes (generating test scenarios, analyzing requirements, speeding up exploratory testing, improving bug reports, assisting with log analysis and impact analysis, accelerating documentation work)
- Performing release verification for payments, wallets, cards, crypto flows
- Supporting automation QA engineers by validating automated regression results and helping triage failures
- Participating in

📌 AI-Assisted QA Engineer (España)
🏢 Colibrix One
📍 España