QA Automation Engineer Jobs in Houston, TX
QA Automation Engineer jobs in Houston are concentrated in the Energy Corridor, Greenway Plaza, and Midtown, where energy tech, aerospace, and healthcare IT firms are hiring steadily. Employers bringing on qa automation engineers right now include Houston Methodist, TMEIC, and SGS. Find a role that fits below and apply directly.
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ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world's leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we're scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.
The Quality Assurance Engineer is responsible for hands-on experience in PLC programming, industrial protocol testing, and Python-based test automation. Skilled in designing and executing functional and integration test cases across PLC platforms and communication protocols.
Key Responsibilities:
- Design, develop, and execute Unit tests, functional, integration, and regression test cases for PLC-based control systems
- Write and maintain Python-based automated test scripts for testing PLC I/O, HMI interfaces, and communication protocols
- Develop, review, and validate PLC code (Ladder Logic, Function Block Diagram, Structured Text) across Siemens S7-1200/1500
- Collaborate with controls engineers to define acceptance criteria and validate system requirements
- Identify, document, and track defects using tools such as Azure Devops or equivalent; lead root cause analysis for critical failures
- Conduct Hardware-in-the-Loop (HIL) and Software-in-the-Loop (SIL) testing where applicable
- Produce clear test plans, reports, and traceability matrices aligned with release timelines
Required Experience & Skills
- University degree in Software Engineering, Computer Science, Quality Engineering, or a related technical field.
- 5+ years of hands-on experience in PLC programming and testing across Siemens platform.
- 5+ years of experience building and maintaining automated test frameworks using pytest or equivalent python framework.
- 3–5 years of experience with Siemens TIA Portal for PLC development, diagnostics, and commissioning support.
- Experience designing and executing functional and integration tests, including test case development, defect tracking, and validation of fixes.
- Working knowledge of industrial communication protocols such as S7, Modbus TCP/RTU, and OPC-UA.
Preferred Experience
- Proficiency in automated unit testing the PLC Logic
- Experience with SCADA systems
- Familiarity with Agile / Scrum methodologies in industrial settings
- Knowledge of functional safety standards such as IEC 61508 / IEC 62061
For US-based roles - What you'll get:
- Competitive salary + annual performance-based bonus eligibility
- Medical, dental, and vision insurance
- 401(k) with company match
- Paid time off and company holidays
For Mexico-based roles - What you'll get:
- Competitive salary + annual performance bonus eligibility
- Christmas Bonus (Aguinaldo): 30 days
- Major medical expenses and life insurance
- Paid time off and holidays (per local policy)
For all roles:
- Professional development and growth opportunities
- Opportunity to grow with a mission-driven team shaping the future of clean energy
- Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.
- Accommodations: If you need an accommodation during the application process, email recruitment@onenergystorage.com
- Benefits vary by role and location and are subject to change.
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Find QA Automation Engineer JobsQA Automation Engineer Job Market in Houston
Who's Hiring
- Houston Methodist4
- TMEIC2
- SGS1
- CTMC1C
- Lonza1
Top Industries Hiring
- Healthcare & Medical Services6
- Energy2
- Consulting & Professional Services2
- Trucking1
- Insurance1
QA Automation Engineer Jobs in Houston: Frequently Asked Questions
How do I get a qa automation engineer job in Houston?
Focus your search on Houston's energy tech, aerospace, and healthcare IT sectors, which drive the highest demand for qa automation engineers locally. Roles concentrate in the Energy Corridor, Greenway Plaza, and the Texas Medical Center area. Candidates who demonstrate hands-on experience with Selenium, Cypress, or API testing frameworks stand out, and familiarity with CI/CD pipelines used in regulated industries gives a clear edge in this market.
Which companies hire qa automation engineers in Houston?
Companies currently hiring qa automation engineers in Houston include Houston Methodist, TMEIC, and SGS, per current listings on Migrate Mate as of June 2026. Houston's employer mix leans toward large energy corporations, aerospace contractors, and hospital systems, many of which maintain dedicated QA engineering teams for complex, compliance-driven software.
Are there remote qa automation engineer jobs in Houston?
Yes, qa automation engineering is well-suited to remote and hybrid arrangements since the core work involves writing and running automated test scripts rather than on-site hardware. About 25% of qa automation engineer openings tied to Houston are remote or hybrid as of June 2026. Test scripting, code reviews, and CI/CD pipeline work are the functions most commonly performed fully remote in Houston-based roles.
How can I get a qa automation engineer job in Houston with little or no experience?
The most realistic entry path in Houston is targeting junior QA analyst or manual tester roles at mid-size software or energy-tech firms, then transitioning into automation as you build scripting skills. Houston's Texas Medical Center and NASA-adjacent aerospace contractors often hire entry-level QA testers willing to learn automation tooling on the job. Building a portfolio with open-source projects using Selenium or Playwright and earning a foundation certification in software testing strengthens your application significantly in this market.
Which industries hire the most qa automation engineers in Houston?
The sectors hiring the most qa automation engineers in Houston are Healthcare & Medical Services, Energy, and Consulting & Professional Services, based on current listings on Migrate Mate as of June 2026. Houston's unique concentration of energy technology, downstream oil and gas software, aerospace systems, and one of the country's largest medical complexes creates sustained demand for qa automation engineers across multiple regulated, software-intensive industries.
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