SDET

Lumen Solutions Group Inc. is a Florida-based technology consulting services company providing experienced business and IT professionals to support clients from solution design through implementation and support. We specialize in professional IT consulting, IT staffing, business/IT strategy, business process blueprints, enterprise architecture, and enterprise transformation.

About the role

As an SDET, you will design, implement, and maintain comprehensive test strategies for our Transportation platform, which operates within a complex, workflow-driven, distributed microservices ecosystem supporting workforce management platforms. This senior role ensures the reliability, scalability, and performance of mission-critical systems by building robust testing frameworks and driving quality across services and integrations. You will provide technical leadership, champion a quality-first mindset, mentor engineers, influence cross-functional stakeholders, and evolve testing practices to enhance engineering excellence, system resiliency, and operational reliability.

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 non-functional requirements, including authentication, authorization, security, 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.

Requirements

• Bachelor’s degree or 7+ years of 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 architecture.
• 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, rail, 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.

Location: Washington, DC (Remote) | Job Type: Contract