
Systems Engineer
Required skills
- Systems Engineer
- hypersonic missile systems
- Cameo Systems Modeler
- SysML
- requirements specifications
- system architecture
- system behavioral content
- MBSE models
- model customization
- matrixed organization
Nice to have
- systems engineering experience
- DOORS
- requirements database tools
- DoD acquisition processes
- DoD programs
- NASA programs
Role summary
Leidos Defense Systems is seeking a Systems Engineer to develop hypersonic missile systems. The role involves using Cameo Systems Modeler and SysML for requirements, architecture, and behavioral content development. Experience with MBSE models, customization, and stakeholder communication is required. Preferred qualifications include a Master's degree, experience with DOORS, DoD acquisition processes, supporting DoD/NASA/DARPA programs, effort estimation, and team leadership. The position requires a secret clearance and is based in Huntsville, AL.
Looking for an opportunity to make an impact?
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
Your greatest work is ahead!
Leidos’ Defense Systems is seeking a Systems Engineer to join a team of systems engineers developing hypersonic missile systems. In this role, the Systems Engineer will use Cameo Systems Modeler and SysML to develop requirements specifications, system architecture content (bdd / ibd), and system behavioral content (act / stm). This position does not necessarily require an MBSE Subject Matter Expert, but the role does minimally require experience working independently on MBSE models, some model customization, and the ability to communicate with non-Systems Engineering stakeholders who are less familiar with MBSE approaches.
The Systems Engineer will work in a matrixed organization, which supports multiple programs at once in a variety of engineering fields with all different team environments. When the current program ends, the Systems Engineer will have the opportunity to support a different program in the portfolio. A candidate with experience in other engineering areas such as Test, Model-Based Systems Engineering, Risk Management, and Reliability Analysis will be treated preferentially. Success in this organization often leads to leadership positions in Model-Based Systems Engineering, Systems Engineering, and Systems Engineering Integration and Test (SEIT).
If this sounds like the kind of environment where you can thrive, keep reading!
Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here!
Are you ready to make an impact? Share your resume with us today!
Basic Qualifications:
A Bachelor’s degree in Systems Engineering, Software Engineering, Computer Science, Computer Engineering, Electrical Engineering, Mechanical Engineering, Aerospace Engineering, or equivalent degree from an ABET-accredited university with 3+ years of experience or an MS with 1+ years.
- Experience using MagicDraw, Cameo Systems Modeler and/or other Model Based System Engineering (MBSE) modeling tools.
- Experience in deriving requirements for complex electrical, electro-mechanical, mechanical, and software systems.
- Position requires candidates to be capable of performing in a collaborative engineering environment working closely with multi-disciplinary teams.
- Demonstrated experience effectively communicating within a team environment.
- Resident of the North Alabama area or willing to relocate to the Huntsville - North Alabama, AL area.
- Possess a secret clearance or have the ability to obtain a secret clearance.
Preferred Qualifications:
Preference shown to candidates who possess a Master of Science in System Engineering from an ABET-accredited university, and/or have at least 3 years of direct systems engineering experience.
Preferred candidates will also have experience and/or working knowledge with:
- Demonstrated experience effectively leading a team of engineers.
- DOORS and/or other requirements database tools.
- Understanding of the DoD acquisition processes and methods.
- Experience supporting DoD, NASA, or DARPA programs.
- Demonstrated experience accurately estimating the engineering effort (i.e. hours) associated with Systems Engineering tasks.
- Object Management Group (OMG) Certified System Modeler Professional (OCSMP) certification.
INCOSE Systems Engineering Professional (SEP) certification (ASEP or CSEP).
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:
October 6, 2026For 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 $69,550.00 - $125,725.00The 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.
Sample Leidos interview questions
- 1
What are the key considerations when designing a highly available and consistent service registry?
system designmedium - 2
Buildings with an Ocean View Find all buildings that have an ocean view. Input: heights = [1,2,3,4] Output: [3] Explanation: Since the ocean is to the right, only the rightmost tallest building (index 3) is not blocked by any others.
codingmedium - 3
Merge K Sorted Linked Lists Merge K sorted linked lists. Input: lists = [[2,2,3],[1,5]] Output: [1,2,2,3,5] Explanation: Extracts the smallest current node iteratively using a priority queue to build a single merged and sorted linked list.
codingmedium - 4
Optimal Meeting Point Calculate the optimal meeting point for multiple people on a 2D grid. Input: grid = [[1,0],[0,1]] Output: 2 Explanation: The optimal meeting point is either (0,1) or (1,0), requiring exactly 1 step from each person resulting in a total distance of 2.
codingmedium - 5
Maximize the minimum distance between aggressive cows in stalls. Input: stalls = [0,4,3,7,10,9], cows = 3 Output: 4 Explanation: Placing the cows at positions 0, 4, and 10 yields a maximum possible minimum distance of 4 between any two cows.
codingmedium
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