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Added 1 min ago
Systems Engineer - E2
Lockheed Martin
Littleton, CO · Littleton
Coordinate and communicate across multiorganizational teams, supporting Responsible Systems Engineer (RSE) and Certified Principal Engineers (CPEs) to ensure proper integration at the…
Added 7 mins ago
Systems Engineer Staff - E4
Lockheed Martin
Littleton, CO · Littleton
Collaborate with the Assembly, Integration, Test & Launch (AIT&L) team, Systems Integrators, Certified Principal Engineers (CPEs), internal stakeholders and the customer to define a…
Added 7 mins ago
Systems Engineer Senior - E3
Lockheed Martin
Littleton, CO · Littleton
Collaborate with the Assembly, Integration, Test & Launch (AIT&L) team, Systems Integrators, Certified Principal Engineers (CPEs), internal stakeholders and the customer to define a…
Added 7 mins ago
Systems Engineer Senior Staff - E5
Lockheed Martin
Littleton, CO · Littleton
Prior experience as a Responsible Systems Engineer (RSE) or Certified Principal Engineer (CPE) or Delegate or Integrator role
Added 7 mins ago
Systems Engineer Staff - E4
Lockheed Martin
Littleton, CO · Littleton
Prior experience as a Responsible Systems Engineer (RSE) or Certified Principal Engineer (CPE) or Delegate or Integrator roles
Added 7 mins ago
Electrical Engineer Sr Stf
Lockheed Martin
Grand Prairie, TX · Grand Prairie
As the Electrical Engineer, you will serve as the principal electrical hardware technical lead across a portfolio of missile, launcher, and sensor programs. Your responsibilities may…
Added 7 mins ago
Clinical Specialist - Cardiac Rhythm Management - Ann Arbor
Medtronic
Ann Arbor, MI
…managing inventory and equipment resources, maintaining programmer software, and assisting with daily coverage logistics to meet customer and business…
Added 8 mins ago
Systems Engineer Prin - E6
Lockheed Martin
Palmdale, CA · Palmdale
You will be the Systems Engineer Principal for the Systems Engineering team which is responsible for delivering end‑to‑end system solutions.
Added 9 mins ago
An Electronic Network Engineer (Level 2 or 3)
CORP-Corporate Office
United States
This position may be filled either at the Electronic Network Engineer level OR at the Principal Electronic Network Engineer level based on the qualifications listed.***
Added 9 mins ago
Sr. Principal Systems Engineer - Configuration Management
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems has an opening for a Staff System Engineer-Configuration Management to join our team of qualified, diverse individuals within our Systems Engineering…
Added 9 mins ago
Principal/ Sr. Principal Electronic Network Engineer
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems is looking to add a Principal or Sr. Principal Electronic Network Engineer to join our team in Rancho Bernardo, CA, The candidate should be a…
Added 9 mins ago
Electronic Engineer - SW Infrastructure
CORP-Corporate Office
United States
Principal Engineer: Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline and 5 years of related engineering experience; OR a Master’s degree in a STEM…
Added 1 hour ago
FT
Principal Software Engineer/Developer
Fidelity Technology Group, LLC
United States
- $134,868 to $166,000 USD / year
Bachelor’s degree in Computer Science, Engineering, Information Technology, Information Systems, Software Engineering Systems, or a closely related field (or foreign education equivalent)…
Added 1 hour ago
Principal Software Engineer/Developer
Fidelity Technology Group, LLC
Durham, NC
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) designing, coding, and implementing high-volume brokerage…
Added 1 hour ago
Principal Software Engineer/Developer
Fidelity Technology Group, LLC
Durham, NC
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) designing and building modernized cloud-based applications…
Added 1 hour ago
Principal Software Engineer/Developer
Fidelity Technology Group, LLC
Merrimack, NH
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) designing, developing and supporting backend systems using…
Added 1 hour ago
Principal Software Engineer/Developer
Fidelity Technology Group, LLC
Westlake, TX
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) developing and maintaining Web applications using Java and…
Added 1 hour ago
Principal Software Engineer/Developer
Fidelity Technology Group, LLC
Westlake, TX
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) developing and maintaining scalable solutions using Kafka…
Added 1 hour ago
Principal Cloud Engineer
Fidelity Technology Group, LLC
Westlake, TX
…education equivalent) and five (5) years of experience as a Principal Cloud Engineer (or closely related occupation) performing cloud-native software development, infrastructure-as-code…
Added 1 hour ago
Principal Cloud Engineer
Fidelity Technology Group, LLC
Westlake, TX
…education equivalent) and five (5) years of experience as a Principal Cloud Engineer (or closely related occupation) implementing continuous automation for AWS cloud workloads using…
Added 1 hour ago
Principal AI/ML Engineer
Fidelity Technology Group, LLC
Westlake, TX
…education equivalent) and five (5) years of experience as a Principal AI/ML Engineer (or closely related occupation) executing cloud computing functions for distributed systems, including…
Added 2 hours ago
FM
Principal Engineer AIX and Cloud
Fresenius Medical Care
Waltham, MA
- $117,000 to $196,000 USD / year
…requirements and that utilize available and existing company/customer software platforms and standards. Oversee and facilitate project events that implement applications and components…
Added 2 hours ago
AI Engineer 5 (Gen AI Platform Services: Agentic AI, Guardrails, Evaluations)
Capital One
Cambridge, MA
Design, develop, test, deploy, and support AI software components including foundation model training, large language model inference, agents and multi-agent workflows, similarity search,…
Added 2 hours ago
Senior Principal Engineer - R&D Digital
J&J Family of Companies
Boston, MA
We are searching for the best talent for a Senior Principal Engineer – R&D Digital to join our Orthopaedics team. This is a remote position, with a preference that someone is located…
Added 2 hours ago
Principal Electrical Engineer
QinetiQ
Devens, MA
As a Principal Electrical Engineer at QinetiQ, you will lead hands-on design, build, and troubleshooting of mission-critical electronic systems for defense customers. Your work will span…

SAIC

Principal Software Development Engineer in Test

Remote, United States

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Job details

Posting language: English
Posted: Nov 3, 2026

Original job description

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. MUST BE A U.S. CITIZEN. This role will involve up to 10% of CONUS travel. JRE is a combat-proven data link gateway that plays a vital role in the defense of the United States and our allies by extending the reach of tactical data across the battlespace and around the globe. It is a large, mission-critical, near-real-time system written predominantly in Java and Kotlin, and also includes C++ components. JRE is deployed everywhere from handheld devices and small-form-factor drones to strategic bombers, guided-missile destroyers, and global command-and-control centers. As a Principal Software Development Engineer in Test (SDET) on the software development team, you'll work closely with other developers, as well as with testers and test engineers on the test team. Through test automation, you'll play an essential role in enabling rapid, agentically-developed, high-quality releases of JRE to meet the current and future mission needs of the warfighter. Your impact will extend beyond the code you write yourself. You'll lead projects and build up the test engineering skills of the people you work with.

JOB DUTIES:

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.

Required Education:

Bachelor's degree and nine (9) years’ experience; additional four (4) years’ experience can be considered in lieu of degree.

Required Clearance:

Must have the ability to obtain and maintain an active Secret security clearance; US Citizenship required.

Required Skills:

Deep expertise in the JVM and Java, with familiarity with Kotlin and Scala; strong concurrent programming skills (Threads, Executor Framework, Futures/Promises, Virtual Threads, Reactor, Kotlin Coroutines) and experience testing concurrent/asynchronous code (Reactor Test, Kotlinx Coroutines Test).
Proven experience developing and maintaining high test automation coverage for large-scale (1M+ LOC), mission-critical, high-reliability, near-real-time systems, using JVM testing and mocking frameworks such as JUnit, AssertJ, Mockito, and MockK.
Experience with automated performance testing and analysis using tools such as JMeter and Gatling, and with continuous integration and modern deployment practices for edge and cloud systems in Gradle-built projects.
Familiarity with C++ and related test automation frameworks (Doctest, Google Mock), along with experience in network programming, networking protocols, low-level binary data processing, and distributed systems using RPC and message-oriented architectures.
Thorough knowledge of object-oriented and functional design patterns; software design principles; refactoring techniques; code and test smells; domain-driven design; and a proven track record leading successful large-scale, phased refactoring initiatives.
Experience mentoring developers and testers in test automation best practices; strong skills with dependency injection and the Spring ecosystem (Spring Boot, Spring Data, Spring Security) and their integration testing utilities; and a collaborative, test-driven, iterative development style using Agile methods (Scrum, Extreme Programming, Lean) including pairing and mobbing.

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.

SAIC® is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

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