Jobs and Careers
TH

QA Engineer

Threat Tec, LLC
United Statesfull_timeVerifiedPosted 6 Aug 2025

About the role

Luminexis.AI builds human-centered AI systems that accelerate clarity, streamline decision-making, and solve complex problems at scale. We work with organizations that need more than automation—they need intelligent infrastructure that moves as fast as they do.
Where AI Starts for Companies That Can’t Afford to FailLuminexis.AI delivers AI strategy and execution for organizations operating in high-stakes environments—defense, healthcare, insurance, and logistics. Through our flagship Discovery Package and the upcoming Illuminate (TM) platform, we turn AI overwhelm into clarity, capability, and measurable results. We’re a fast-moving, client-first, technology-driven team looking for a proven closer to help us scale from high-trust engagements to platform-driven growth.
The OpportunityWe are seeking a detail-oriented QA Engineer to join our Quality Assurance team within Product & Engineering team. This role requires a skilled QA professional with 6-8 years of quality assurance experience who can ensure the reliability, performance, and accuracy of both traditional software applications and cutting-edge AI/ML systems. The ideal candidate will develop comprehensive testing strategies, implement automated testing frameworks, and collaborate with development teams to deliver high-quality solutions that meet rigorous quality standards across diverse client environments

Key Responsibilities

  • Software Application Testing & Quality Assurance
  • Design and execute comprehensive test plans for web applications, mobile apps, and enterprise software systems including functional, integration, regression, and user acceptance testing
  • Develop and maintain automated test suites using tools like Selenium, Cypress, TestNG, and Jest to ensure consistent quality across multiple releases
  • Perform API testing using Postman, REST Assured, or similar tools to validate data integrity, error handling, and performance characteristics
  • Conduct cross-browser and cross-platform compatibility testing to ensure consistent user experience across different environments
  • Execute performance testing and load testing using JMeter or LoadRunner to identify bottlenecks and scalability limitations
  •  
  • AI/ML Application Testing & Validation
  • Develop specialized testing frameworks for machine learning models including data quality validation, model accuracy assessment, and bias detection
  • Create test datasets and implement data pipeline testing to ensure AI systems receive clean, representative training and inference data
  • Perform model performance testing including accuracy metrics, precision/recall analysis, and robustness testing against edge cases and adversarial inputs
  • Validate AI model outputs for consistency, explainability, and adherence to business requirements and ethical AI principles
  • Test AI/ML integration points including real-time inference APIs, batch processing systems, and model versioning workflows

  • Test Automation & Framework Development
  • Build and maintain scalable test automation frameworks that support both traditional software and AI application testing requirements
  • Implement continuous integration testing pipelines using Jenkins, GitLab CI, or GitHub Actions to provide rapid feedback on code quality
  • Develop custom testing tools and utilities for specialized AI testing scenarios including model drift detection and data validation
  • Create comprehensive test documentation including test cases, testing procedures, and quality metrics reporting
  • Establish testing standards and best practices for both software applications and AI/ML systems across development teams
  •  
  • Quality Process Management & Collaboration
  • Collaborate with development teams, product managers, and data scientists to understand requirements and define comprehensive testing strategies
  • Participate in agile ceremonies including sprint planning, daily standups, and retrospectives to ensure quality considerations are integrated throughout development lifecycle
  • Manage defect tracking and resolution processes using tools like Jira, ensuring timely communication and resolution of quality issues
  • Conduct root cause analysis for production defects and implement preventive measures to avoid recurring issues
  • Provide quality metrics and testing reports to stakeholders including test coverage, defect density, and release readiness assessments

Qualifications

  • QA Engineering & Testing Expertise
  • 6-8 years of hands-on quality assurance experience with both manual and automated testing methodologies
  • Proficiency in test automation tools and frameworks including S

Apply for this role

Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.

Apply Now →Generate Application Kit

Free account required — sign up in 30s

Company

Threat Tec, LLC

View company profile →