Leidos currently has an opening for a Mechanical Design Engineer to work in our Arlington, Virginia office. This is a highly dynamic and integrative environment in which talented and creative engineers can thrive working on a diverse array of multidisciplinary projects in its Electronic Warfare Division. We are seeking a broadly trained and highly motivated engineer for advanced technology programs focused on mechanical engineering from research and development to productization.
Primary Responsibilities:
Support applied research and engineering development of solutions and products in across various projects for land-based, airborne, and/or space applications.
Provide mechanical engineering leadership on new R&D and current designs as well as support existing products.
Work closely with the science and manufacturing departments to facilitate transition of innovative technology from the research stage to full production.
Own large aspects of the system and be flexible with tasking as the program evolves.
Work within a lab environment and be hands-on with hardware.
Basic Qualifications:
Experience in electronics packaging designs including 3D modelling and thermal management.
Experience using SolidWorks, SolidWorks Simulation, and SolidWorks Flow
Experience with finite element analysis (FEA) and computational fluid dynamics (CFD) concepts
Experience working with cross functional development teams. Motivated self-starter able to work under minimal supervision
Demonstrated strong writing, presentation, and interpersonal skills
B.S. degree in Mechanical Engineering or related field from an accredited college/university with at least 4 years of experience as a mechanical design engineer
Secret Security Clearance with the ability to obtain a Top Secret Security Clearance.
Occasional travel is required
Preferred Qualifications:
Experience in advanced electronics packaging, chip-to-ambient thermal resistance, thermal simulation and cooling.
Experience with thermal management of next generation heterogeneous integrated circuits, chip-centric cooling techniques in harsh environments, and/or radiation shielding.
Experience with modeling, analysis, and design of miniaturized electrical/mechanical components and assemblies.
Experience with rapid prototyping techniques including 3D printing
Knowledge of mechanical engineering concepts associated with airborne and satellite payload systems
Familiarity with VITA VPX Circuit Card Assemblies
Demonstrated leadership of small technical teams and projects
Masters degree in Mechanical Engineering or related field from an accredited college/university with at least 8 years of experience as a mechanical design engineer
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.
February 27, 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 $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.
Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health. The company's global workforce of 48,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $15.4 billion for the fiscal year ended December 29, 2023.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead, visit careers.leidos.com for our latest opportunities.
