Sr. Systems Engineer
Company: Leidos
Location: San Diego
Posted on: April 2, 2026
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Job Description:
Leidos has a new and exciting opportunity for a Sr. Systems
Engineer in our National Security Sector's (NSS) 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:
This project provides the full range of systems design, analysis,
integration, verification, and validation activities in support of
the Navy’s Key Management project portfolio. The selected candidate
will provide system s engineering expertise in the following areas:
system architecture and design; development and integration;
requirements analysis, data flow analysis; network design and
implementation; test/verification and validation; and documentation
for the system. The selected candidate will be responsible for
collaborating with internal technical professionals on a day-to-day
basis, and with POCs from customer organizations when necessary.
Additional p osition responsibilitie s also include: Lead system
engineering, hardware, and software analysis to support the Navy’s
Key Management project portfolio. Define and apply systems
engineering processes to develop systems that meet customer
requirements. Manage requirements, including decomposition,
allocation, verification, and validation for subsequent use by the
development and test teams. Define and develop System Architecture,
CONOPS, and use case development using systems engineering
methodologies. Participate and lead discussions at customer
meetings, working groups, and technical interchange meetings
associated with the work performed in this project. Required to
research, design, write, and review a wide range of technical
documentation that will include but not be limited to: technical
manuals, design specification documents, interface requirements
specification, system user guides, reference manuals, installation
guides, and data sheets that may be required to assist with the
design, integration, testing, and fielding of the system; will
provide project briefing materials upon request. Option to work a
9/80 work schedule (i.e., 9 hour days, then work 8 hours on first
Friday and off the second Friday) The selected candidate will be
required to work at the customer facilities up to 5 days a week.
Some teleworking may be available. ? Required Qualifications:
Bachelor's Degree in System Engineering , Computer Science,
Information Systems, Engineering Science, Engineering Management,
or a related field, with 8 years of experience. Will consider
experience in lieu of a degree. Position requires US citizenship
and an active Secret DoD security clearance. Experience that
demonstrates ability to analyze risks and uncertainties and ability
to navigate projects through established processes. Model based
systems engineering experience . Experience with database
management software, such as MySQL, Oracle RDBMS, and Microsoft SQL
Server. Familiarity with operating systems, such as Linux and UNIX.
Understanding complex system development methods. Experience with
technical documentation development. Knowledge of software design
patterns. Knowledge of Agile Development methodologies. DoD 8570
approved security certification (i.e., Security ) (Will be 90 days
after hire). Desired Qualifications: Software development or shell
scripting experience. Past experience using CAMEO a plus. Excellent
scripting skills with knowledge of programming languages, such as
Perl, Ruby, and Python. Good knowledge of networking protocols,
such as TCP, IP, and OSI models. Past Test Driven Development (TDD)
experience a strong plus. Experience with CUCUMBER or similar TDD
automation framework a plus. 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 $107,900.00 - $195,050.00 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.
Keywords: Leidos, Downey , Sr. Systems Engineer, Engineering , San Diego, California
