Software Development Engineer; Test Security Clearance

Position: Software Development Engineer (Test) with Security Clearance
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, Dev Ops, 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 Arvada, CO 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 No

SQL 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 Git Hub Actions
* Support validation and verification efforts for complex, mission-critical software systems
* Collaborate closely with software engineers, Dev Ops, and product teams to uphold high quality standards Qualifications for the SDET:
* Bachelor's degree in Computer Science or a related technical field
* 3+ years of professional experience in software testing, backend development, Dev Ops, or related roles

* Exceptional self-starters with strong technical skills and real project experience will also be considered
* Strong proficiency in Python

* Working knowledge of Type Script and/or Java Script

* Experience with end-to-end testing frameworks (Playwright, Cypress, or similar)
* Strong understanding of containerized and serverless architectures

* Hands-on experience testing and troubleshooting:
* APIs and backend services
* Distributed systems
* Event-driven architectures
* No

SQL and relational databases
* Caching systems
* Experience with task automation and CI/CD pipeline development

* Proficiency with Git and Git Hub (or similar version control systems)
* Active U.S. Security Clearance (Secret required; TS/SCI preferred)
Compensation & Benefits: * $120,+
* Dependent on experience
* * Comprehensive Benefits with extremely generous PTO and Bonuses!
* Hybrid flexibility #LI-EA1 #LI-Hybrid Software Development Engineer in Test, SDET, Software Engineer in Test, Python Developer, Backend Engineer, Dev Ops Engineer, Test Automation Engineer, End-to-End Testing, E2E Testing, Playwright, Cypress, JavaScript, Type Script, Python Automation, API Testing, REST APIs, Distributed Systems, Microservices, Event-Driven Architecture, Serverless Architecture, Containerized Applications, Docker, Kubernetes, CI/CD, Git Hub Actions, Dev Ops Automation, Chaos Engineering, Chaos Monkey, System Resilience, Reliability Engineering, Site Reliability Engineering, SRE, No

SQL Databases, Relational Databases, SQL, Distributed Databases, Caching Systems, Redis, Cloud Infrastructure, AWS, Cloud-Native Applications, Infrastructure as Code, Git, Git Hub, Validation and Verification, V&V, Mission-Critical Systems, Production Support, Debugging, Troubleshooting, Secure Software Development, Cleared Software Engineer, Secret Clearance, TS SCI, Government Contracting, Defense Technology, Space Systems Software, Satellite Operations Software