Senior Systems Engineer

Leidos has a new and exciting opportunity for a Senior Systems Engineer in our Intel Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.Join us and make a difference in National Security!

Job Summary

A Senior Systems Engineer is needed for a critical program providing a broad range of support to operational requirements including Software Engineering, Systems Integration, Systems Administration, Network Engineering, Information Assurance, Cyber Security, Analytics Development, and Rapid Prototyping.

Primary Responsibilities:

• Provide guidance and support for system engineering of large-scale systems, major system elements, and interfacing systems that are part of a large complex network environment with geographically distributed components.
• Provide technical guidance and support for future system enhancements and design.
• Update System Engineering Documentation.
• Provide Analysis of Alternatives (AoA) or similar evaluation methodologies.
• Interface with Program Management, System and Software Integration Engineers, Test Engineers, Information Assurance Engineers, and other project team members in an Agile environment.
• Develop and implement system engineering practices ensuring the proper degree of engineering rigor is applied to all assigned tasks.
• Communicate with and effectively collaborate with internal technical professionals on a day-to-day basis, and with representatives from customer organizations when necessary.
• Actively participate in program increment planning and related Agile team activities.
• Provide hands on technical assistance to engineering teams for data gathering and auditing purposes throughout multiple data centers.

Basic Qualifications:

• Bachelor's degree in System Engineering, Engineering Science, Computer Science, or a related field, and at least 12 years of related experience. Additional relevant work experience may be substituted for a degree.

• Must have in-depth experience in several of the following areas: system architecture, design and development, requirements analysis, data flow design/analysis, network design/implementation, testing, technical system documentation.

• Must have experience or strong familiarity with data centers and/or server rooms, to include: Rack based Servers, Network Switches, KVM's, Routers, Backup and Recovery devices, Firewalls, and security appliances.

• Must have at least 1-3 years of experience with infrastructure components (Servers, Switches, Firewalls, and other Enterprise Infrastructure hardware).

• Must have at least 7 years of experience working on system architecture design, building, and integration.

• Must have at least 7 years of experience working on large complex system architectures.

• Must have requirements verification traceability experience.

• Must have experience analyzing user requirements, system architecture, and/or system requirements specifications.

• Must have experience in discovery, research and analysis for hardware and software transitions.

• Must have experience gathering information related to the lifecycle of equipment and software.

• Must possess a solid understanding of secure systems engineering and development.

• Must be comfortable working on multiple systems and components simultaneously in various configurations.

• Must be able to effectively plan and prioritize tasking and communicate clearly regarding technical options and trade-offs.

• Must be capable of performing systems engineering activities in support of Agile teams on a large program.

• Must be committed to adopting, adhering to, and championing best practices.​

• Clearance Required: Must have TS/SCI with Polygraph.

Preferred Qualifications:

• In-depth experience transitioning systems to new architectures.
• Experience with model-based systems engineering.
• Experience with risk management/risk register.
• Experience with the Scaled Agile Framework (SAFe) methodology or as a member of an Agile team.
• Experience working as an admin on Windows Server and Linux Server platforms.

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you –Apply today!

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:

March 9, 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 $131,300.00 - $237,350.00

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.