Quality Assurance Engineer - Senior

Position Title: Quality Control Analyst Senior / Quality Assurance Engineer - Senior

Skill Set

Job Summary

The Senior Quality Assurance Engineer will design, implement, and maintain comprehensive test strategies for Client's Transportation platform. This role supports a complex, workflow-driven, distributed microservices ecosystem that manages equipment lifecycle, yard operations, scheduling, and operational events.

The ideal candidate is comfortable testing state-based systems, APIs, distributed integrations, and data-intensive workflows in mission-critical environments.

Essential Responsibilities

• Design and execute end-to-end test strategies for workflow-driven and state-heavy systems.
• Develop and maintain automated test frameworks for UI and API testing (Playwright, Selenium, REST-assured, Karate, or similar).
• Validate REST APIs, integration points, and distributed microservices.
• Perform database-level validations to ensure data integrity, referential consistency, and correct state transitions.
• Validate event-driven workflows and message-based integrations (Kafka or similar technologies).
• Develop tests for resilience scenarios including retries, failure handling, and idempotency.
• Conduct performance and load testing to validate behavior under peak operational conditions.
• Integrate automation suites into CI/CD pipelines (Jenkins, GitHub, Bitbucket, or equivalent).
• Analyze logs and monitoring data (CloudWatch, AppDynamics, ELK/EFK or similar) to validate system behavior.
• Collaborate with product owners, developers, and architects to define test strategy and quality gates during design and implementation phases.

Minimum Qualifications

• Bachelor's degree or 7+ years relevant work experience.
• 5+ years of experience in manual and automated testing of enterprise systems.
• Strong experience in UI and API automation.
• Proficiency in Java and TypeScript for automation scripting.
• Experience testing microservices-based architectures.
• Strong SQL skills and experience validating relational and/or NoSQL databases.
• Experience working in Agile environments.
• Strong analytical and problem-solving skills.

Preferred Qualifications

• Experience testing complex workflow-driven or operational systems (e.g., logistics, transportation, airline, financial transaction platforms).
• Experience with event-driven or message-based systems (Kafka preferred).
• Experience with performance testing tools (JMeter or similar).
• Familiarity with AWS or other cloud environments.
• Familiarity with legacy mainframe or green-screen systems (e.g., 3270), batch processing, and legacy-to-modern system integration validation.
• **Lumen and / or its clients will not provide equipment (Laptop, monitor, etc.) to the selected contractor. The contractor must have their own equipment. Access to a virtual desktop set up (software) will be provided by Lumen's client, allowing the user access to the required systems and technology.***

Lumen Solutions Group Inc. is an Equal Opportunity Employer and does not discriminate in employment on the basis of Minority/Gender/Disability/Religion/LGBTQI/Age/Veterans.