QA Engineer - Manual & Automated Testing

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 headquartered in Limassol, Cyprus.

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.

A key focus of this role is intensive automation of our current, largely semi-manual testing process. While manual testing remains part of the job, the clear expectation is that you will steadily replace repetitive manual checks with reliable automated coverage — this is an automation-heavy role, not a predominantly manual one.

Responsibilities:

• 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.

Requirements

• 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.

Nice to Have

• 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.

Benefits

• 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.