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# Principal Software Development Engineer in Test

- **Company:** JRE, LLC
- **Location:** United States (Remote available)
- **Experience:** Experienced
- **Salary:** $120,001 - $160,000
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Spring Security, Application Programming Interfaces (APIs), Agile Methodology, Automation of Tests, C++ (Programming Language), Data Link, Concurrent Computing, Continuous Integration, Dependency Injection, Distributed Systems, Global Positioning Systems (GPS), Gradle, Java Virtual Machine (JVM), Apache JMeter, Junit, Network Programming, Network Protocols, Object-Oriented Software Development, Open Source Technology, Scrum Methodology, Mockito, Software Engineering, Software Requirements Analysis, Software Testing Automation Framework, Cloud Platform System, Performance Testing, Real Time Systems, Test-Driven Development (TDD), Spring-boot, Gatling, Spring Data, SC Clearance, Kotlin, Integration Tests, Solid Principles, Extreme Programming, Asynchronous Programming, Domain Driven Design, Code Restructuring, SDET
- **Published:** October 23, 2026
- **Apply:** https://www.dice.com/job-detail/bcde2b2b-198b-4bb7-8e7a-ae094b96163f

## About the Role

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 able to obtain a Secret Clearance after start

## Description

* Expand JRE's unit, integration, service, GUI, and end-to-end test automation
 * Engineer and maintain a comprehensive automated performance test suite covering load, stress, and endurance testing; support our IT team with capacity planning for the hardware environment it requires
 * Design, develop, and maintain advanced simulators for IP and serial tactical data link terminals, radios, navigation systems, and sensors
 * Contribute to the definition and ongoing verification of minimum system requirements for JRE's full range of deployment platforms
 * Refactor JRE code for testability, introducing API, RPC, and messaging seams to enable additional white- and gray-box testing
 * Mentor developers, testers, and less-experienced test engineers in test automation best practices as we expand automated coverage across the codebase
 * Optimize the performance and quality of our test automation suites
 * Quarantine, troubleshoot, and fix nondeterministic tests, * 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