Senior Software Engineer

Senior Software Engineer

Job ID: 2618824

Location: El Segundo, CA, United States

Date Posted: Nov 5, 2026

Category: Software

Subcategory: SW Engineer

Schedule: Full-Time

Shift: Day Job

Travel: Yes - 10% of the time

Minimum Clearance Required: Secret

Clearance Level Must Be Able to Obtain: TS/SCI

Potential for Remote Work: Hybrid

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Job Description

Description

SAIC is seeking a Software Engineer with experience in cryptographic software to join the Positioning, Navigation, and Timing (PNT) Systems Engineering & Integration (SE&I) Team in El Segundo, California.

PNT SE&I provides engineering, integration, technical analysis, and subject matter expertise (SME) support to the US Space Force. As a member of our PNT SE&I Team, you'll work in a fast-paced environment with Government personnel and systems engineers to develop and maintain software products for the Navigation Warfare (NAVWAR) team. This includes the management of software products and collaboration with both customers and other contributing engineers.

Major duties of this position include:

• Develop and modernize cryptographic software using innovative solutions
• Support GPS enterprise integrated system testing
• Support GPS enterprise requirements, capabilities, architectures, concepts, designs, and technologies development
• Software implementation of Y-code and M-code cryptographic algorithms
• Validation of National Security Agency (NSA) operational key material
• Provide guidance and technical support for Crypto Management and NAVWAR
• Collaborate with the government team, other program government leads, external organizations, and prime contractors
• Actively participate as a Subject Matter Expert in the GPS requirements process

Qualifications

• Bachelor's Degree in Engineering, Math, Computer Science, or Science
• 5+ years of overall experience
• Active Secret clearance with the ability to obtain a TS/SCI
• Demonstrated experience developing and evaluating software
• Demonstrated understanding of System Engineering practices, techniques, and procedures
• Demonstrated experience working with or for the government
• Demonstrated experience writing and delivering technical documents

Desired

• Active TS/SCI Clearance
• GPS experience
• Experience with C++20, C#, Python, SQL, and gRPC
• Experience with environments utilizing Podman, cmake, and CI/CD pipelines
• Experience and familiarity working with DoD acquisition organizations

Target salary range: $120,001 - $160,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.

Overview

SAIC accepts applications on an ongoing basis and there is no deadline.

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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