Principal Software Development Engineer – Test

SAIC

. Expand JRE's unit, integration, service, GUI, and end-to-end test automation .

Posted 10/21/2026full-timeRemote • United StatesLeadWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates deep expertise in JVM platform programming, particularly in Java, with a strong focus on test automation for large-scale systems. Capable of mentoring teams in best practices while leading projects that enhance test engineering capabilities.

Highest-signal resume keywords

Java ProgrammingTest Automation CoveragePerformance Testing with JMeterAgile MethodologiesMentoring in Test Automation

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JVM Platform ExpertiseKotlin or Scala FamiliarityJUnitMockitoMockKC++ FamiliarityDependency InjectionSpring FrameworksTest-Driven DevelopmentConcurrent JVM Programming

Soft Skills

MentoringLeadershipTroubleshootingCollaboration

Tools & Technologies

GatlingReactorKotlinx CoroutinesGradleContinuous Integration

Certifications & Qualifications

Secret Clearance Eligibility

Industry Keywords

High-Reliability SystemsLoad TestingStress TestingEndurance TestingDistributed Systems

Tech Stack

Tools & technologies

CloudDistributed SystemsGradleJavaJMeterJUnitKotlinMockitoScalaSpringSpring BootSpringBootC++

About the role

Key responsibilities & impact

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

Requirements

What you’ll need

Deep expertise in the JVM platform, including fluency with Java and familiarity with Kotlin or Scala
Proven experience developing and maintaining high test automation coverage for large-scale codebases (1M+ lines)
Experience verifying mission-critical, high-reliability, near-real-time systems
Experience with JUnit, AssertJ, Mockito, and MockK
Familiarity with C++ and Doctest or Google Mock
Experience with automated performance testing using JMeter or Gatling
Understanding of concurrent JVM programming, including Threads, Executor Framework, Futures and Promises, Virtual Threads, Reactor, and Kotlin Coroutines
Experience testing concurrent and asynchronous code using Reactor Test and Kotlinx Coroutines Test
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 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
Test-driven development and team-based development via pairing or mobbing
Experience with 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
Bachelor's degree and 9+ years of experience, or master's degree and 7+ years, or PhD/JD and 4+ years
Must be a U.S. Citizen
Must be able to obtain a Secret Clearance after start

Benefits

Comp & perks

Up to 10% of CONUS travel
Ability to work remotely within the United States