Lead manual and API testing including end-to-end workflow validation, regression, exploratory, and backend data checks. Perform API tests with Postman, validate data via SQL, verify system behavior under failures/timeouts, support pre-release smoke tests and production verification, and collaborate with engineering/product teams to triage and resolve defects.
About us:
Working at Tech Holding isn't just a job, it's an opportunity to be a part of something bigger. We are a full-service consulting firm that was founded on the premise of delivering predictable outcomes and high-quality solutions to our clients. Our founders and team members have industry experience and have held senior positions in a wide variety of companies – from emerging startups to large Fortune 50 firms – and we have taken our combined experiences and developed a unique approach that is supported by the principles of deep expertise, integrity, transparency, and dependability.
About the Role
We are looking for a Senior QA Engineer - Contract to support critical product validation initiatives with a strong focus on API and end-to-end workflow testing. This role emphasizes manual testing, exploratory validation, and ensuring high-quality releases across complex system interactions.
You will collaborate closely with engineering and product teams to ensure reliability, accuracy, and seamless user experiences across the application lifecycle.
Key Responsibilities
API & Workflow Testing
We are looking for a Senior QA Engineer - Contract to support critical product validation initiatives with a strong focus on API and end-to-end workflow testing. This role emphasizes manual testing, exploratory validation, and ensuring high-quality releases across complex system interactions.
You will collaborate closely with engineering and product teams to ensure reliability, accuracy, and seamless user experiences across the application lifecycle.
Key Responsibilities
API & Workflow Testing
- Validate end-to-end workflows across system components and services.
- Perform API testing using tools like Postman or similar REST clients.
- Verify request/response structures, data integrity, and service behavior.
- Test different functional scenarios across APIs, including positive and negative cases.
Functional & Edge Case Validation
- Execute detailed functional, regression, and exploratory testing.
- Identify edge cases, failure scenarios, and unexpected system behaviors.
- Validate error handling, fallback mechanisms, and system resilience.
- Ensure consistency across different environments and configurations.
Data Validation & Backend Testing
- Validate data consistency across APIs and databases.
- Perform backend validation using SQL queries.
- Verify logs, records, and system outputs for correctness.
System Reliability & Scenario Testing
- Test system behavior under different conditions (e.g., retries, timeouts, partial failures).
- Validate data flow across multiple services and components.
- Ensure system stability during complex workflows.
Release Validation & Production Support
- Support pre-release validation and smoke testing.
- Participate in production verification and post-release checks.
- Collaborate with teams for defect triaging and resolution.
Requirements
- 5+ years of QA experience with strong focus on manual and API testing.
- Hands-on experience with API testing tools (Postman or similar).
- Strong understanding of REST APIs, HTTP protocols, and JSON.
- Experience with SQL and backend data validation.
- Strong expertise in functional, regression, and exploratory testing.
- Familiarity with distributed systems behavior (timeouts, retries, failures).
- Strong analytical thinking and debugging skills.
- Ability to work independently in a fast-paced, remote environment.
Good to Have
- Experience working in Agile/Scrum environments.
- Basic understanding of system integrations and service-based architecture.
- Exposure to log analysis and monitoring tools.
Tech Holding is proud to be an Equal Opportunity Employer and is committed to fostering a diverse and inclusive workplace. We welcome applicants from all backgrounds and experiences, and we consider qualified applicants without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, disability, veteran status, or any other legally protected characteristic. If you require accommodation in the application process, please contact our HR
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