# Senior QA Automation Engineer (AQA/SDET) - Crystal Intelligence

[Crystalintelligence](https://gurify.com/jobs?q=Crystalintelligence) · Posted 7 weeks ago

Remote

Senior

[QA](https://gurify.com/jobs/qa)

[Apply on the original posting → (opens in a new tab)](https://crystalintelligence.teamtailor.com/jobs/8157407-senior-qa-automation-engineer-aqa-sdet)

## Job description

### Position Summary:

We're looking for a strong Senior QA Engineer with leadership experience — someone who can not only design and maintain automated testing for backend and data-heavy systems in the blockchain domain, but also shape the team's technical vision, influence architectural decisions, and own product quality on a long-term basis.

This is a fully remote role, and we welcome applications from anywhere in Europe.

### More details: crystalintelligence.com

### Duties and responsibilities:

- Design, develop, and maintain automated tests for backend/API and frontend services and data-processing systems in the blockchain domain, including API, integration, contract, and data validation coverage

- Create reliable test coverage for edge cases such as missing data, delayed data, and incorrect calculations

- Analyze failed tests and production-like issues using logs, metrics, monitoring dashboards, API responses

- Conduct code reviews

- Pioneer new approaches, architectures, or frameworks that drive the business forward

- Focus on long-term systemic planning, making high-level trade-offs across projects, and establishing technical vision

- Prioritize testing efforts based on business needs, project risks, and delivery timelines

- Identify process improvement opportunities and implement QA best practices

- Evaluate and drive adoption of AI tools for QA and development workflows (e.g., AI-assisted test generation, code review, automation frameworks)

- Define best practices and guidelines for using AI tools within the QA process, and help the team integrate them effectively

- Collaborate closely with developers, business stakeholders, and cross-functional teams to improve testability, observability, and reliability of services

- Maintain test documentation, automation coverage notes, and clear defect reports

### Required:

- 5+ years of AQA/SDET experience testing complex backend, API, data-heavy, or distributed systems

- Deep understanding of SOLID principles and design patterns, hands-on experience applying them into test frameworks;

- Solid SQL and PostgreSQL experience, including advanced queries, data validation, and investigation of data inconsistencies

- Strong test design skills

- Understanding of backend architecture, environment-based configuration, service health checks, and deployment validation

- Strong Java programming skills for test automation

- Hands-on experience with test automation tools and frameworks (e.g., Playwright, Postman, REST-assured or similar for API testing; Allure for reporting)

- Experience of working with version control systems (GIT);

- Experience working in Scrum or another Agile delivery process

- Hands-on experience with AI-assisted development tools such as Cursor and Claude, including creating custom skills, agents, and rules to support QA/development workflows

- Hands-on experience with AI no-code tools and business process automation (e.g., n8n)

- Proficiency in English

### Would be a plus:

- QA technical leadership experience

- Experience in performance testing

- Python knowledge

### Tech stack:

- Languages: Java (primary, for test automation); Python (nice to have, such as backend is written on this language)

- Database: PostgreSQL

- Test automation: Playwright, Postman or REST-assured (API testing), Allure (reporting)

- CI/CD: GitHub Actions

- AI & Automation Tooling: Cursor or Claude for AI-assisted development, n8n for workflow automation (e.g., Jira ticket automation, bug-report pipelines)

- Project & Collaboration Tools: Jira, ClickHouse, Mintlify, Drata (compliance tooling), Spira (test case management), Tailscale

**Live in Crystalintelligence’s hiring system.** Read from the company's own applicant tracking system, not reposted from a job board — so it's a real, open requisition rather than an ad that outlived the role.

We remove it as soon as it disappears at source.

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