Senior SDET – Integration & Platform

Job Title: Senior SDET - Integration & Platform
Location: Remote (U.S.) with required travel for PI planning; possible on-site in Washington, DC, Wilmington, DE, or Philadelphia, PA
Employment Type: Contract (W2 through Zip Staff - No C2C or 1099)

Zip Staff is seeking a Senior SDET for a workflow-driven microservices platform supporting enterprise workforce management at a major passenger-rail and transportation organization.

You will own UI, API, and Kafka test strategy, put suites in CI/CD, and mentor engineers. This is a senior automation lead seat-not manual QA.

• Design, build, and maintain UI and API automation (Playwright, Selenium, REST Assured, Karate, Java, Type Script).
• Validate distributed microservices, state-heavy workflows, REST APIs (functional, performance, security, authn/authz), and Kafka.
• Run SQL checks for referential integrity and state transitions.
• Build resiliency tests: retries, failure handling, idempotency.
• Embed automation in Jenkins, Git Hub, or Bitbucket pipelines.
• Use Cloud Watch, Dynatrace, App Dynamics, or ELK under load.
• Set quality gates with developers, POs, and architects.
• Mentor engineers; cover modern plus mainframe/batch integrations.

• Bachelor's or 7+ years equivalent.
• 5+ years manual and automated testing of complex enterprise systems.
• Java and Type Script for automation.
• Strong UI, API, and microservices testing.
• Strong SQL (relational and No
  
  SQL validation).
• Agile / Dev Ops delivery.
• Able to travel for quarterly PI planning (client covers travel, lodging, and select meals).
• Must be legally authorized to work in the United States without sponsorship now or in the future.

• Transportation, logistics, rail, or financial platforms.
• Kafka / event-driven testing.
• JMeter; AWS.
• Mainframe / 3270 / batch-to-modern integration testing.

Zip Staff partners with leading organizations to connect skilled technology professionals with high-impact contract opportunities. We focus on quality matches, clear communication, and long-term success for candidates and clients.