Principal Software Development Engineer in Test

SAIC • Flexwork, CA

1d • Remote

About The Position

SAIC is seeking a Principal Software Development Engineer in Test (SDET) to join the Joint Range Extension (JRE) software development team. This is a remote role within the United States, requires U.S. citizenship, and involves up to 10% CONUS travel. JRE is a combat-proven data link gateway that extends tactical data across the battlespace. It is a large, mission-critical, near-real-time system written predominantly in Java and Kotlin, with C++ components, and is deployed on platforms ranging from handheld devices and drones to aircraft, naval vessels, and command-and-control centers.

The SDET will work closely with software developers, testers, and test engineers. Through test automation, the role supports rapid, high-quality software releases that meet current and future warfighter mission needs. The position also includes leading projects and developing the test engineering skills of colleagues.

Requirements

• Expertise in the JVM platform, including fluency in Java and familiarity with JVM languages such as Kotlin or Scala.
• Experience developing and maintaining high test automation coverage for large-scale codebases of 1 million or more lines.
• Experience verifying 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 tools such as JMeter or Gatling.
• Understanding of concurrent programming on the JVM, including Threads, the Executor Framework, Futures and Promises, Virtual Threads, Reactor, and Kotlin Coroutines.
• Experience testing concurrent and asynchronous code, including with 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 low-level binary data processing.
• Experience leading successful large-scale, phased refactoring projects.
• Experience mentoring developers and testers in test automation best practices.
• Experience with dependency injection and Spring frameworks, including Spring Boot, Spring Data, and Spring Security, and related integration-testing utilities.
• Test-driven development experience and team-based development experience through pairing or mobbing; eagerness to work collaboratively.
• Experience designing and developing solutions iteratively and incrementally using 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.
• Must be a U.S. citizen.
• Must be able to obtain a Secret Clearance after start.
• Bachelor's degree and 9 or more years of experience, or a master's degree and 7 or more years of experience, or a Ph.D. or JD and 4 or more years of experience.

Nice To Haves

• Public contributions to open-source projects.
• Familiarity with tactical data link standards such as MIL-STD-6016, MIL-STD-6017, MIL-STD-3011, MIL-STD-6020, MIL-STD-6040, MIL-STD-2525, and MIL-STD-1553.
• Familiarity with tactical terminals and radios such as MIDS JTRS, STT, BATS-D, AN/ARC, and AN/PRC.
• Familiarity with navigation and avionics standards such as NMEA 0183, GPS-153, ARINC 429, and ARINC 661.
• Familiarity with security standards such as DISA STIGs, NIST SP 800-171, and NIST SP 800-207.

Responsibilities

• Expand JRE unit, integration, service, GUI, and end-to-end test automation.
• Engineer and maintain an automated performance test suite covering load, stress, and endurance testing, and support IT capacity planning for the required hardware environment.
• Design, develop, and maintain simulators for IP and serial tactical data link terminals, radios, navigation systems, and sensors.
• Contribute to defining and continually verifying minimum system requirements across JRE deployment platforms.
• Refactor JRE code for testability by introducing API, RPC, and messaging seams to enable additional white-box and gray-box testing.
• Mentor developers, testers, and less-experienced test engineers in test automation best practices.
• Optimize the performance and quality of test automation suites.
• Quarantine, troubleshoot, and fix nondeterministic tests.
• Lead projects and build colleagues' test engineering skills.

What This Job Offers

• Job Type: Full-time
• Career Level: Principal