Hydraulic and Mechanical Lead Engineer

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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 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.

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Leidos Defense 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.

Leidos Low Band System (LBS) program is seeking a talented Hydraulic and Mechanical Lead Engineer to lead the design, development, integration, and test of hydraulic components and systems. LBS is a large, multi-phase radar program with concurrent development, test, production, and sustainment activities.

As a member of the design team, you will be responsible for supporting and leading design, integration, and testing of components (hydraulic power units, cylinders, manifolds, piping, hoses, and controls) and hydraulic systems on both the transportable single panel demonstrator and a large stationary antenna array. This person will be responsible for hydraulic system architecture, component and system trades, bill of material development, specifications, 3D CAD modeling of hydraulic components and supporting structure, fabrication and integration drawings, hydraulic test planning and procedures, and hands-on integration and test support. Additionally, the hydraulic subsystem lead engineer may support mechanical and thermal system tasks as needed.

This role requires a seasoned technical contributor and leader, proficient in applying technical principles, theories, and concepts in hydraulics engineering, thermal management, structural design, and technical leadership. You will be responsible for developing and proving out solutions to technical problems and issues that may be difficult or unclear while collaborating with other members of the design, hydraulic, structural, and thermal analysis teams. This person must take ownership of the hydraulic system including meeting technical requirements, adhering to aggressive schedules, and supporting project cost objectives.

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 fast-paced program 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!

Primary Responsibilities

Lead hydraulic engineering tasks including the design, analysis, manufacture, integration, and test of hydraulic components and subsystems

Support and perform technical trade studies, develop hydraulic system architecture

Apply sound engineering practices to develop concepts using CAD and mature designs that meet system requirements

Support technical peer, table-top, and internal/external design reviews

Create and maintain Technical Data Package (TDP) artifacts, including CAD models, drawings, bills of materials (BOMs), specifications, test procedures and reports

Communicate and collaborate effectively with design, analysis, fabrication, test, and program management teams to resolve challenges and complete tasks on schedule

Basic Qualifications

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

BS + 4 years progressive hydraulics engineering experience or MS + 2 years

Proficient with either Solidworks or Creo

Experience with drawing generation in accordance with ASME Y14.100 & Y14.5

Basic understanding and application of GD&T (ASME Y14.5) and tolerance stack-up analysis

Strong attention-to-detail, analytical thinking, and problem-solving skills

Excellent communication and collaboration skills

Self-starter with a demonstrated ability to work independently and in team environments

Proficiency with Microsoft Office applications (Word, Excel, PowerPoint)

US Citizenship required

Active DoD security clearance or eligibility to obtain and maintain

Preferred Qualifications

In addition to hydraulic design, experience in either structural design or structural analysis

Experience with weapon systems, military hardware, erector systems, and/or industrial/construction/mining/agriculture equipment

Basic understanding or experience with radars or other advanced sensing technologies

Technical team leadership

Experience with large steel structures including welded structures and bolted assemblies

Experience with fluid flow systems and/or thermal systems

Experience with technical data and documentation release and management in Windchill

Experience supporting rapid development, prototyping, or fast-paced engineering programs

Knowledge of MIL-STD-31000 Technical Data Package (TDP) development

Active DoD security clearance

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 29, 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.