Senior Systems Engineer

Leidos LLC; Saint Petersburg (FL); On-site; USD 87,000 - 157,000; Full time

Benefits offered by this job

Health and Wellness programs

Paid leave

Retirement benefits

Job summary

Leidos Maritime Systems Division is seeking a Systems Engineer with MBSE, requirements development, test planning and procedure creation, and algorithm development to support the C4I Prototype buoy project. The role involves hardware/software integration, stakeholder communication, and driving process improvements in an Agile environment.

The successful candidate will understand system engineering processes and contribute to deployment readiness, with responsibilities spanning from requirements

Qualifications

• Requires US citizenship.
• BS degree in Computer Science, Computer Engineering, Electrical Engineering, Mechanical Engineering, Physics, or Mathematics with 4+ years of experience or Masters with 2+ years.
• Active Secret clearance is required.
• Experience across all phases of Systems Engineering including requirements, algorithms, integration, test, and modeling.
• Excellent verbal, written and interpersonal communication skills for interfacing with internal and external contacts.
• Ability to possess business and technical vision.

Responsibilities

• Support the development and maintenance of systems engineering artifacts: Requirements, SysML models, Test Plans, Test Procedures, Formal Test Reports.
• Collaborate with cross-functional teams to ensure integration and verification activities.
• Contribute to Agile development practices and process improvements.

Skills

Model Based Systems Engineering

Requirements development

Test plan creation

Test procedures creation

Algorithm development

Systems engineering processes

Hardware/software integration

Customer communication

Agile methodologies

Education

BS in Computer Science / Computer Engineering / Electrical / Mechanical / Physics / Mathematics

Masters with 2+ years relevant experience

Tools

Cameo/Magic Draw

MATLAB

Atlassian toolset

Rust

Job description

The Maritime Systems Division of Leidos is seeking a systems engineer with experience Model Based Systems Engineering, requirements development, test plan and procedure creation, and algorithm development. A successful candidate will have a strong understanding of systems engineering processes and experience with hardware/software integration. Customer communication skills are highly desirable. The candidate should work well in a collaborative environment, understand Agile development methodologies, and seek to identify and champion both technical and process innovations. The C4I Prototype is a new product that is rapidly maturing and nearing readiness for deployment. The program provides for deployment, monitoring, and communications of a buoy that includes a software defined radio. The implementation in Rust controls the radio in meeting key mission objectives. Tasking and responsibilities will vary depending on project objectives and may extend to programs beyond the C4I Prototype.

Primary Responsibilities

• Support the development and maintenance of systems engineering artifacts including: Requirements SysML models Test Plans Test Procedures Formal Test Reports

Basic Qualifications

• US Citizenship required
• Requires BS degree in Computer Science, Computer Engineering, Electrical Engineering, Mechanical Engineering, Physics, or Mathematics and 4+ years of prior relevant experience or Masters with 2+ years of prior relevant experience.
• Active Secret clearance
• Proven experience in all phases of Systems Engineering including requirements, algorithms, integration, test, and modeling
• Excellent verbal, written and interpersonal communication skills are required for an effective interface with all internal and external contacts.
• Possess business and technical vision

Preferred Qualifications

• Experience with the Navy’s Cooperative Engagement Capability
• Experience using the Atlassian toolset
• Experience with Cameo/Magic Draw
• Experience in Agile development methods, including Scrum
• Experience developing and giving presentations to a government customer
• Experience with MATLAB is beneficial.

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

July 16, 2026

For U.S. Positions

While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

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.

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 $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

• Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

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.