Quality Assurance Engineer - Senior
About The Position
The Senior Quality Assurance Engineer is responsible for designing, implementing, and maintaining comprehensive test strategies for Client’s Transportation platform. This platform operates within a complex, workflow-driven, distributed microservices ecosystem that supports unified train status, rail incident and disruption management, partner communications, and real-time operational events. In this role, you will ensure the reliability, scalability, and performance of mission-critical systems by building robust testing frameworks and driving quality across services and integrations. As a senior member of the team, you will provide technical leadership by championing a quality-first mindset, mentoring engineers, influencing cross-functional stakeholders, and driving the evolution of testing practices to enhance engineering excellence, system resiliency, and operational reliability.
Requirements
- 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.
Nice To Haves
- 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.
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 for functional and NFRs
- Validate REST REST API authn and authz security and role-based access, integration points, and distributed microservices.
- Perform database record and element validations to ensure data integrity, referential consistency, and correct state transitions.
- Validate event-driven process flows 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, Dynatrace, 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.
Benefits
- 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.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
