Note: The job is a remote job and is open to candidates in USA. zerohash is a crypto and stablecoin infrastructure platform powering digital financial services. The QA Engineer will own test planning, functional and exploratory testing, UAT, regression testing, defect management, and release quality across API- and SDK-based products, while collaborating with engineers, product managers, and SDETs.
Responsibilities
- Design, document, and execute functional and exploratory test cases for API- and SDK-based product flows
- Pick up automation work on an ad hoc or on-demand basis, addressing automation tech debt and critical-flow gaps, using tooling and frameworks built by SDETs
- Partner with product managers, developers, and SDETs to translate acceptance criteria into concrete test scenarios, and proactively call out coverage gaps and edge cases
- Own regression testing for your assigned area ahead of each release, and support the team's release-readiness process
- Help formalize and run User Acceptance Testing across product and engineering as zerohash standardizes this process company-wide
- Log, triage, and track defects with clear repro steps, severity, and expected-vs-actual detail; follow issues through to resolution
- Flag coverage gaps that need deeper automated testing and route them to developers, who own unit and integration test automation
- Test across dev, cert, and prod environments, and participate in release readiness reviews
Skills
- * 5+ years of QA or test engineering experience, ideally in fintech, payments, or another regulated, API-driven environment
- * Strong grasp of QA process across all phases of the SDLC: test planning, test data setup, execution, defect management, and release sign-off
- * Strong test case design and exploratory testing instincts; comfortable reading API specs and testing REST/JSON APIs directly (e.g., Postman, cURL)
- * Experience with BDD-style test scenario writing (Gherkin/Cucumber or similar)
- * Comfortable writing and maintaining automated tests (e.g., Playwright, Selenium) for occasional ad hoc work and automation tech debt
- * Proficiency in at least one programming or scripting language used for test automation (e.g., JavaScript/TypeScript or Python)
- * Working knowledge of SQL for data verification and familiarity with Git-based workflows (GitHub)
- * Experience using Jira and Confluence, or equivalent tools, for test planning, tracking, and documentation
- * Experience with a test management or UAT tool (e.g., TestRail, Zephyr, or similar)
- * Clear, detailed written communication: bug reports and test plans that others can act on without back-and-forth
- * Comfortable working in a fast-paced environment, switching between competing priorities and projects
- * Comfortable collaborating across time zones with a distributed engineering team
- * Experience testing financial transaction flows: ledgers, settlement, reconciliation, or payments
- * Exposure to CI/CD pipelines and how automated tests fit into them
- * Experience working in an Agile/Scrum environment (sprint planning, backlog grooming)
Benefits
- Remote (any location)
- Independence/Ownership - An ability to work autonomously. Join zerohash, pitch ideas, and shape the work you do.
- Passion - We are innovating quickly and challenging the status quo. We want you to think big, be creative and make a difference every day.
- Collaborative - A good attitude and respect for others. We’re teammates, not co-workers. Everything we do is a shared success and equally a shared failure - we talk in terms of “we” not “me”.
- Initiative - An ability and passion for learning and asking questions. We will champion you, challenge you and push you to achieve your best - and we expect you to do the same.
- Empathy - An ability to listen, respect, and understand your co-workers, customers, and everyone you interact with no matter how different they are to you.
- Adaptability - An ability to respond quickly. We’re in a fast-paced industry and so we expect you to be creative when solving a new problem and comfortable under pressure.
- Transparency - We believe that transparency is critical to empowering everyone to make the best decisions, both the company to its people and vice versa.
- Integrity - Integrity creates trust. As both an organization collectively and as individuals, it is our most valuable asset.
Company Overview
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