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# Ground Software Integration Engineer (Level 3 or 4) - AHT

- **Company:** Northrop Grumman
- **Location:** Redondo Beach, CA, United States
- **Salary:** $114,000 - $171,000
- **Contract:** Permanent contract
- **Skills:** Concurrent Computing, Data Security, Network Interface Controllers, Internet Protocol Security (IP SEC), Interoperability, Network Planning and Design, Network Protocols, Satcom, Software Engineering, Data Streaming, Systems Integration, TCP/IP, SC Clearance
- **Published:** October 26, 2026
- **Apply:** https://www.techcareers.com/job.asp?id=3467208496&tx=CT323TYI&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

* Principal Software Engineer (Level 3)
 * Bachelor's degree in a STEM discipline with 5+ years of relevant software engineering experience or Master's degree in a STEM discipline with 3+ years of stated experience or Ph.D. in a STEM discipline with 1+ years of stated experience.
 * Sr. Principal Software Engineer (Level 4)
 * Bachelor's degree in a STEM discipline with 8+ years of relevant software engineering experience or Master's degree in a STEM discipline with 6+ years of stated experience or Ph.D. in a STEM discipline with 4+ years of stated experience.
 * Ability and willingness to obtain and maintain a U.S. Government Secret clearance within a reasonable period of time as determined by the company.
 * Experience with ground system interfaces and integration (preferably with GEPs, Telemetry, Tracking, & Command (TT&C), SATCOM, or other ground communication assets).
 * Demonstrated experience developing, interpreting, or maintaining Interface Control Documents (ICDs).
 * Strong understanding of network protocols, data formats, and ground communications architectures.
 * Experience coordinating technical requirements and issue resolution with external service providers or vendors., * Active U.S. Government Secret clearance
 * Hands-on experience integrating with commercial GEP service providers or equivalent commercial ground stations.
 * Familiarity with automated ground contact scheduling, data routing, and mission data flows.
 * Experience with secure data exchange (encryption, IPsec, cross-domain/data diode integration).
 * Strong knowledge of protocol standards (CCSDS, SLE, TCP/IP, Ka/S-band satellite comms).
 * Experience with mission operations tools, network planning, or orchestration software.
 * Ability to support ICD update cycles, participate in technical interchange meetings (TIMs), and drive interface verification/test campaigns.

#LosAngelesSpace

## Description

* Lead Ground Entry Point (GEP) services integration, including development and management of Interface Control Documents (ICDs), and serve as the primary technical interface with commercial GEP and ground station providers.
 * Design, integrate, and operate end-to-end ground systems that ensure seamless interoperability across mission operations, ground communications, and secure data flows, including automated contact scheduling and data routing.
 * Implement and maintain secure data exchange solutions (e.g., encryption, IPsec, cross-domain/data diode integrations) and apply protocol standards (CCSDS, SLE, TCP/IP, Ka-/S-band) to ground system and network designs.
 * Utilize mission operations tools, network planning utilities, and orchestration software to enable reliable and efficient ground operations, and lead interface verification/test campaigns and ICD update cycles.
 * Apply strong problem-solving skills to rapidly understand and resolve complex technical issues, and prepare technical charts, present data, and provide clear recommendations to internal teams, leadership, and external customers.
 * Manage tasking and mentor team members across multiple, concurrent program schedules, ensuring high-quality execution of deliverables within tight deadlines.

Please be aware that this position will be contingent upon obtaining and maintaining customer and/or business funding