Software Systems Engineer Sr. Staff jobs in United States
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Lockheed Martin · 1 day ago

Software Systems Engineer Sr. Staff

positionLittleton, CO
timeFull-time
remoteOnsite
senioritySenior Level, Lead/Staff

Lockheed Martin Space is focused on harnessing the full potential of space to cultivate innovation and advance technology. The Software Systems Engineer will support the software engineering lifecycle, including requirements analysis, design, coding, and testing.

AerospaceCyber SecurityMachinery ManufacturingMilitaryNational SecurityRemote SensingSecurity
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Growth OpportunitiesbadNo H1BnoteSecurity Clearance RequirednoteU.S. Citizen Onlynote

Responsibilities

Proficiency in C/C++ for real‑time/embedded environments
Ability to develop and automate unit, integration, and hardware‑in‑the‑loop (HIL) test procedures
Direct experience writing and managing software requirements
Ability to capture, trace, and manage requirements using tools like IBM DOORS
Ability to work in cross‑functional teams (hardware, firmware, mechanical, mission specialists)
Strong written communication for formal documents (requirements, test plans, reports) and oral communication for briefings and design review
Support the software engineering lifecycle following the program Software Development Plan (SDP) to include requirements analysis, object oriented analysis & design, code & unit test, integration, and support to formal test/delivery

Qualification

C/C++ proficiencySoftware requirements managementHIL test proceduresIBM DOORSModel-based systems engineeringCybersecurity testingSatellite payload experienceMissile guidance experienceCross-functional teamworkWritten communicationOral communication

Required

Proficiency in C/C++ for real‑time/embedded environments
Ability to develop and automate unit, integration, and hardware‑in‑the‑loop (HIL) test procedures
Direct experience writing and managing software requirements
Ability to capture, trace, and manage requirements using tools like IBM DOORS
Ability to work in cross‑functional teams (hardware, firmware, mechanical, mission specialists)
Strong written communication for formal documents (requirements, test plans, reports) and oral communication for briefings and design review
Must be a US Citizen; this position will require Final Secret government security clearance prior to starting

Preferred

Exposure to satellite payload or missile guidance & control subsystems
Familiarity with model‑based systems engineering (MBSE) tools such as Cameo
Experience with cybersecurity testing (e.g., FIPS‑validated libraries, secure boot)

Company

Lockheed Martin

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Lockheed Martin is a global security and aerospace company that specializes in advanced technology systems, products, and services. It is a sub-organization of Lockheed Martin.
dateFounded in 1912
location
Bethesda, Maryland, USA
people-size10001+ employees
web-link
https://www.lockheedmartin.com

Funding

Current Stage
Public Company
Total Funding
$6.06B
Key Investors
Air Force Research Laboratory
2025-12-05Post Ipo Debt· $3B
2025-08-28Post Ipo Debt· $3B
2023-11-13Grant· $33.7M

Leadership Team

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Jim Taiclet
Chairman, President & CEO
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Craig Martell
Chief Technology Officer
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