QA engineer (auto) in crypto custody

The Vault is a crypto-finance company building an MPC-based crypto custody and wallet platform designed for both institutional and retail users. Our infrastructure combines threshold signing, HSM and hardware-wallet integration with non-extractable key shares, and robust recovery and policy flows across a growing range of chains and assets. We are looking for a QA Engineer to help us ensure product quality through a combination of manual and automated testing. It is important to us that you use AI tools in your day-to-day work and take an active part in developing our QA processes together with the team.

• Perform manual functional, regression, integration, and exploratory testing
• Develop and maintain automated tests for UI and API
• Analyse requirements, surface ambiguities, and design test scenarios
• Create and maintain test cases, checklists, and test data
• Report defects clearly, verify fixes, and track issues through to resolution
• Decide which checks are worth automating and integrate automated tests into CI/CD
• Collaborate with developers, designers, and the product team
• Use AI tools to prepare test scenarios, write automated tests, analyse failures, and speed up routine tasks — while verifying the quality of their output

• Hands-on experience in manual and automated testing of web applications and APIs
• Solid grasp of testing fundamentals, test design techniques, and the software development lifecycle
• Experience with Playwright, Cypress, Selenium, or similar tools
• Programming skills sufficient to write and maintain automated tests
• Ability to produce clear test documentation and reproducible bug reports
• Experience with DevTools, API clients such as Postman, and issue-tracking systems
• Knowledge of Git and an understanding of CI/CD principles
• Confident, regular use of AI tools in QA processes — this is a mandatory requirement
• Ability to critically evaluate AI output and follow the rules for handling confidential data
• Attention to detail, independence, and the ability to make a well-reasoned case for the issues you find
• Будет плюсом: Experience testing back-office systems, internal admin panels, or enterprise applications with complex business processes; Experience verifying role models, access permissions, approval workflows, and audit logs; Knowledge of SQL and experience validating data correctness; Skills in working with logs and monitoring tools

• Competitive salary
• Annual performance bonus
• Fully remote position — work from anywhere in the world (team operates on CET)
• Paid time off, including vacation, sick leave, and public holidays