Mid-Level Systems Engineer

Leidos; St. Louis (MO); On-site; USD 87,100 - 157,450; Full time

Benefits offered by this job

Health and Wellness programs

Paid Leave

Retirement options

Job summary

A technology leader in national security is seeking a Mid-Level Systems Engineer in St. Louis, MO. The role involves supporting system architecture, collaborating with teams, and ensuring effective solutions for geospatial intelligence. Applicants must have a strong understanding of engineering principles, relevant degree, and years of experience. A Top Secret clearance is required for this position. Competitive pay range of $87,100.00 - $157,450.00 offered.

Qualifications

• US citizenship is required per contract.
• 4-8 years of prior relevant experience.

Responsibilities

• Support system architecture design and requirements development.
• Provide engineering expertise across the full system lifecycle.
• Collaborate with stakeholders to ensure interoperability and scalability.
• Conduct analysis of system performance and provide recommendations.

Skills

Strong understanding of systems engineering principles

Familiarity with Model-Based Systems Engineering tools

Proficiency with Atlassian tools

Excellent written and verbal communication skills

Education

Bachelor's degree in Systems Engineering, Computer Science, or related field

Master’s degree with relevant experience

Tools

Atlassian tools (JIRA, Confluence)

Microsoft Office Suite

Job description

Description

Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world. Our team’s focus is to ensure our customers have the right tools, technologies, and tactics to keep pace with an ever-evolving security landscape and succeed in their pursuit to protect people and critical assets.

The Intelligence Production Solutions Division (IPSD), part of the Decision Advantage Solutions Business Area, is currently seeking a Mid-Level Systems Engineer for the Chinook Program. As part of a highly skilled team, you will play a critical role in delivering geospatial intelligence (GEOINT) capabilities through innovative systems engineering practices, directly supporting the Customer's mission to provide timely, relevant, and accurate intelligence to national decision-makers and warfighters.

Position may be performed in the following locations below. Please note Gaithersburg, MD is the program’s primary work location.

• Gaithersburg, MD
• Alexandria, VA
• Chantilly, VA
• Aurora, CO
• St. Louis, MO
• Tucson, AZ

Clearance Level Required

Top Secret with SCI eligibility and able to obtain a Polygraph.

Primary Responsibilities

• Support system architecture design, requirements development, integration planning, and configuration management.
• Provide engineering expertise for mission systems across the full system lifecycle from concept through deployment and sustainment.
• Collaborate with stakeholders across the Customer's and contractor teams to ensure interoperability, scalability, and mission alignment.
• Evaluate and recommend tools, techniques, and processes for system development and integration.
• Develop and maintain technical documentation, including system interface control documents (ICDs), and engineering reports.
• Participate in technical reviews, readiness assessments, and milestone events.
• Conduct analysis of system performance and provide recommendations for optimization.

Basic Qualifications

• US citizenship is required per contract.
• Bachelor's degree in Systems Engineering, Computer Science, or related field and 4-8 years of prior relevant experience or Master’s with 2-6 years of prior relevant experience.
• Strong understanding of systems engineering principles, including requirements management, integration & test, and configuration control.
• Familiarity with Model-Based Systems Engineering (MBSE) tools and methodologies (e.g., Cameo, Sysml).
• Experience working in a DoD or Intelligence Community (IC) environment.
• Proficiency with Atlassian tools (JIRA, Confluence), Microsoft Office Suite, and collaboration platforms.
• Excellent written and verbal communication skills.

Preferred Qualifications

• Systems Engineering Professional (SEP), INCOSE, CISSP, Security+ certification, or similar credentials.
• Experience supporting the Customer's programs or working with the GEOINT lifecycle.
• Knowledge of cloud-based architectures (AWS, C2S) and DevSecOps environments.
• Familiarity with Agile and SAFe methodologies.
• Experience supporting GEOINT missions.

#Chinook

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting

November 21, 2025

Pay Range

Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay And Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [e-mail]. If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.