Principal Software Development Engineer in Test

REQUIREMENTS:

• Technical Qualifications
• Deep expertise in the JVM platform, including fluency with Java, and familiarity with JVM languages such as Kotlin or Scala
• Proven experience developing and maintaining high test automation coverage for large-scale codebases (1M+ lines)
• Experience with the verification of mission-critical, high-reliability, near-real-time systems
• Experience with JVM testing and mocking frameworks such as JUnit, AssertJ, Mockito, and MockK
• Familiarity with C++ and related test automation frameworks such as Doctest and Google Mock
• Experience with automated performance testing using tools such as JMeter or Gatling
• Solid understanding of concurrent programming on the JVM, including classic Threads, the Executor Framework, Futures and Promises, Virtual Threads, the Reactor framework, and Kotlin Coroutines
• Experience testing concurrent and asynchronous code, including with utilities such as Reactor Test and Kotlinx Coroutines Test
• Thorough knowledge of object-oriented and functional design patterns; software design principles; refactoring techniques, code and test smells, and domain-driven design
• Experience with RPC and message-oriented distributed systems
• Experience with network programming, networking protocols, and the low-level processing of binary data
• Experience leading successful large-scale, phased refactoring projects
• Experience mentoring developers and testers in test automation best practices
• Experience with dependency injection and the Spring family of frameworks, including Spring Boot, Spring Data, and Spring Security, and their related integration testing utilities
• Test-driven development experience, and team-based development experience via pairing or mobbing, with an eagerness to work collaboratively
• Experience designing and developing solutions iteratively and incrementally via Agile methodologies such as Scrum, Extreme Programming, or Lean Software Development
• Experience with continuous integration and modern deployment practices for edge and cloud systems, in Gradle-built projects
• Credentials and Education
• Bachelors and nine (9) years or more experience; Masters and seven (7) years or more experience; PhD or JD and four (4) years or more experience.
• Must be a U.S. Citizen
• Must be able to obtain a Secret Clearance after start
• DESIRED SKILLS:
• Public contributions to open-source projects
• Familiarity with any of the following:
• Tactical data link standards such as MIL-STD-6016, MIL-STD-6017, MIL-STD-3011, MIL-STD-6020, MIL-STD-6040, MIL-STD-2525, MIL-STD-1553, etc.
• Tactical terminals and radios such as MIDS JTRS, STT, BATS-D, AN/ARC, and AN/PRC
• Navigation and avionics standards such as NMEA 0183, GPS-153, ARINC 429, and ARINC 661
• Security standards such as DISA STIGs, NIST SP 800-171, and NIST SP 800-207