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# Systems Engineer Sr - E3

- **Company:** Lockheed Martin
- **Location:** Littleton, CO, United States
- **Experience:** Expert
- **Salary:** $95,900.0 - $178,100.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Systems Engineering, Requirements Management, Verification and Validation (Software), Systems Integration, SC Clearance
- **Published:** August 29, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9127332/systems-engineer-sr-e3

## About the Role

* 3+ years of professional experience with a Bachelor's

 * Active Secret Clearance with the ability to obtain a Top Secret Clearance

 * Ability to work onsite at Littleton, CO campus

The information below reflects the standard job description for this position: Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems. Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance and disposal. Ensures the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints. Performs functional analysis, timeline analysis, detail trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications., * Experience working with various engineering disciplines (i.e. mechanical, electrical, safety, test, etc.) to develop requirements specifications

 * Experience CAMEO and/or DOORS
 * Must have a Secret clearance with the ability to obtain and maintain a Top-Secret clearance; US Citizenship required
 * Proficient in AI prompting as it applies to this position and practice

Desired Skills

 * Knowledge in Systems Engineering concepts and processes

 * Writing requirements documentation and coordinating document release through approval process

 * Excellent written and verbal communication skills, excellent social skills, and ability to create consensus among peers while forming relationships with team members

 * Knowledge of DOORS

 * Knowledge of CAMEO

 * Knowledge of Requirements

 * Knowledge of MBSE

 * Knowledge of Interfaces

 * Experience in systems engineering, preferably in a defense or aerospace environment

 * Experience with coordinating Systems Milestones reviews (SRR, PDR, CDR)

 * Strong understanding of systems engineering principles

 * Active Top Secret clearance

## Description

Lockheed Martin (LM) is looking for an resourceful Systems Engineer, Senior to become a member of the Systems Engineering and Integration Team.

As a Systems Engineer, Senior, you will:

 * Develop subsystem requirements documentation

 * Develop CAMEO models of the subsystem

 * Support requirements writing, other model based systems engineering activities, and verification planning

 * Collaborate with SEIT organization to create end to end integrated solutions

 * Support a value driven systems engineering team and facilitate design evolution in a systematic and thoughtful way

 * Support development of test, modeling, validation and verification activities


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