Senior QA Engineer

TekWissen LLC; Minneapolis (MN); On-site; USD 90,000 - 120,000; Full time

Job summary

TekWissen Group is seeking a Senior QA Engineer to ensure the quality, reliability, and performance of TracKing, a SaaS application and its APIs. The role involves hands-on testing across web and API layers, troubleshooting user-reported issues, and clear documentation for defect resolution.

The ideal candidate will have 5+ years in QA for SaaS, experience with Postman, Selenium, Python, and Azure DevOps, and strong customer-facing communication.

Qualifications

• Bachelor’s degree in CS/Engineering or equivalent practical experience.
• 5+ years of software QA experience for SaaS apps and APIs.
• Hands-on with Postman, Selenium, Python, and test automation.
• Experience with Azure DevOps for defect tracking.

Responsibilities

• Perform end-to-end QA testing for TracKing SaaS and API validation.
• Design and maintain manual and automated test suites.
• Validate APIs for functionality, error handling, and performance.
• Troubleshoot issues and document defects with reproducible steps.
• Collaborate with QA, development, and stakeholders to resolve issues.
• Support functional, regression, integration, and UAT activities.

Skills

SaaS testing

API testing

Postman

Selenium

Python scripting

Azure DevOps

Manual testing

Automation testing

Root cause analysis

Education

Bachelor’s degree in Computer Science, Engineering, Math, or related field

Tools

Postman

Selenium

Python

Git

SQL

Azure DevOps

Job description

TekWissen is a global workforce management provider headquartered in Ann Arbor, Michigan that offers strategic talent solutions to our clients world-wide. Our client is a company that specializes in global climate technologies. It operates in the Climate segment that delivers energy efficient products and energy services. The company offers the client and American Standard Heating & Air Conditioning which provides heating, ventilation, and air conditioning (HVAC) systems, and commercial and residential building services, parts, support, and controls; energy services and building automation.

Job Description:

Position Summary

• The Senior QA Engineer is responsible for ensuring the quality, reliability, and performance of TracKing, a SaaS application, and its related APIs.
• This role will lead and execute testing efforts across web application and API layers, troubleshoot user-reported issues, document findings, and collaborate closely with QA and development teams to drive timely defect resolution.
• The ideal candidate is a hands-on quality professional with strong experience in manual and automated testing, API validation, troubleshooting, and customer-facing communication.
• This individual should be comfortable working across technical teams and engaging directly with customers and internal stakeholders to investigate and resolve issues effectively.

Key Responsibilities

• Perform end-to-end quality assurance testing for TracKing, including SaaS application functionality and API validation.
• Design, develop, execute, and maintain manual and automated test cases, test scripts, and regression suites.
• Use tools such as Postman, Selenium, Python, and other scripting tools to validate system behavior and improve test coverage.
• Test APIs for functionality, reliability, error handling, and integration performance.
• Troubleshoot issues reported by users of TracKing and its APIs.
• Document defects, issues, and enhancement requests in Azure DevOps (ADO) with clear, reproducible, and actionable detail.
• Partner with QA engineers, developers, and cross-functional stakeholders to investigate root causes and resolve product issues.
• Support functional, regression, integration, and user acceptance testing activities as needed.
• Analyze logs, backend behavior, and system interactions to support issue diagnosis and validation.
• Communicate effectively, both written and verbally, with customers and internal stakeholders regarding quality issues, testing results, and resolution progress.
• Contribute to continuous improvement of QA processes, test automation practices, and release quality.

Required Qualifications

• Bachelor’s degree in Computer Science, Engineering, Math, or a related field, or equivalent practical experience.
• 5+ years of experience in software quality assurance, with demonstrated success in testing SaaS applications and APIs.
• Hands-on experience with Postman, Selenium, Python, and other test automation or scripting tools.
• Experience with defect tracking and work management tools such as Azure DevOps (ADO).
• Strong experience in manual and automated testing methodologies.
• Experience testing web applications, APIs, and integrated software systems.
• Strong troubleshooting, analytical, and root cause analysis skills.
• Ability to create clear test documentation, defect reports, and status updates.
• Strong written and verbal communication skills, including the ability to work directly with customers and cross-functional internal teams.

Preferred Qualifications

• Experience with IoT solutions and connected device ecosystems.
• Familiarity with HVAC equipment and related operational environments.
• Knowledge of communication protocols such as CAN, Bluetooth, and LTE.
• Experience with SQL for backend validation and troubleshooting.
• Familiarity with Git and source control workflows.
• Familiarity with CI/CD pipelines and modern software delivery practices.
• Experience working in Agile or Scrum environments.
• Experience with performance or load testing tools such as JMeter or similar platforms.
• Experience supporting customer-reported production issues in a SaaS environment.

Technical Skills

• SaaS application testing
• API testing and validation
• Selenium
• Postman
• Python scripting
• Defect tracking and triage
• Regression and integration testing
• Root cause analysis
• SQL and backend validation
• Git/version control
• IoT systems and communication protocols

Core Competencies

• Problem solving and critical thinking
• Cross-functional collaboration
• Written and verbal communication
• Ownership and accountability

Success in This Role

• A successful Senior QA Engineer will be able to combine strong testing expertise with practical troubleshooting skills.
• Communicate clearly with both technical and non-technical audiences.
• Proactively improve product quality across application and API environments.

TekWissen Group is an equal opportunity employer supporting workforce diversity.