System Architect Mechanical Engineer​ at Leidos

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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 sustainable. 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’ is seeking an experienced System Architect Mechanical Engineer to solution tough engineering problems across some of the most challenging programs in our Defense Sector. This is a multi-faceted role that will leverage your experience in design, production, integration, and testing in myriad ways on multiple programs. You will be asked to solution tough, nebulous problems that span multiple engineering disciplines. This role requires a systems-minded leader with the ability to direct technical work based on cost, schedule, risk, and requirements. This is not your average engineering position. You will work on a team of the most talented engineers in the region who push you to be better every day. This is a dynamic role with unique technical challenges that will be a rewarding milestone in any engineering career.

If you are up for the challenge of joining this team, then apply today to be considered.

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!

Primary Responsibilities

• Lead technical teams to design, manufacture, and deliver complex defense systems

• Own the technical baseline across all lifecycle stages—engineering execution, system performance, and requirements compliance

• Balance technical solutions against cost and schedule constraints

• Direct subsystem leads, IPT leads, and specialty engineers to drive design maturity, integration, and risk mitigation

• Identify and manage program risks and opportunities

• Communicate technical progress, challenges, and opportunities to senior leadership and government stakeholders

• Mentor and develop technical staff, fostering innovation, rigor, and collaboration

Basic Qualifications

• Bachelor’s degree in Mechanical or Aerospace Engineering from an ABET-accredited university.

• Masters + 15 years of progressive engineering experience (or Bachelors + 17 years experience).

• Proven success leading complex, multi-disciplinary teams through development, integration, test, and production

• Strong technical judgment, with the ability to communicate clearly to both technical and non-technical audiences

• Hands-on experience with design reviews (PDR/CDR), configuration management, and risk management

• Active DoD security clearance, or eligibility to obtain

• Resident of Huntsville, AL or willing to relocate to the Huntsville, AL area.

Preferred Qualifications

• Full-lifecycle experience—design, manufacture, integration, test, and fielding—on at least one product

• Ability to quickly identify, assess, and communicate the downstream impacts of technical decisions

• Experience with launchers, canisters, and flight vehicles

• Experience integrating munitions into land- and sea-based launchers

• Familiarity with the Patriot launcher

• Familiarity with the Navy Vertical Launch System (VLS)

• Familiarity with Army offensive and defensive fires

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 8, 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 $154,050.00 - $278,475.00

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.