Software Development Engineer (Test)

Software Development Engineer & Test (SDET)

Zachary Piper Solutions is seeking a Software Development Engineer & Test (SDET) to support an innovative space technology company building resilient, mission-critical software systems. This role sits at the intersection of software engineering, DevOps, and advanced test automation, with a strong emphasis on real-world system behavior, scale, and resilience. You will design and build automated end-to-end tests that mirror actual customer workflows, deliberately stress distributed systems, and validate recovery when things go wrong. If you enjoy breaking systems on purpose and fixing them this role is for you. This position is Hybrid out of Los Angeles, CA and requires an active Secret or TS / SCI Security Clearance.

Responsibilities of the SDET :

• Design, build, and maintain end-to-end automated test suites using frameworks such as Playwright or Cypress
• Simulate real customer use cases across satellite tracking, antenna reservation, and command-and-control services
• Execute large-scale test scenarios simulating hundreds to thousands of concurrent system operations
• Act as a chaos engineer, injecting failures to validate system resilience and recovery procedures
• Test and troubleshoot API-driven, distributed systems, including event-driven and multi-tier architectures
• Validate behavior across NoSQL and relational databases, caching layers, and serverless components
• Identify, debug, and fix issues in deployed production software
• Build and maintain CI / CD pipelines, with a preference for GitHub Actions
• Support validation and verification efforts for complex, mission-critical software systems
• Collaborate closely with software engineers, DevOps, and product teams to uphold high quality standards

Qualifications for the SDET :

Compensation & Benefits :