Senior Mechanical Engineer

Date: Jan 16, 2026

Location: Alexandria, VA, Virginia, United States

Company: HII's Mission Technologies division

Requisition Number: 26689

Required Travel: 0 - 10%

Employment Type: Full Time/Salaried/Exempt

Anticipated Salary Range: $122, $192,801.00

Security Clearance: TS/SCI with Poly

Level of Experience: Senior

This opportunity resides with Warfare Systems (WS), a business group within HII's Mission Technologies division. Warfare Systems comprises cyber and mission IT; electronic warfare; and C5ISR systems.

HII works within our nation's intelligence and cyber operations communities to defend our interests in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity, network architecture, reverse engineering, software and hardware development uniquely enable us to support sensitive missions for the U.S. military and federal agency partners.

Meet HII's Mission Technologies Division

Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that's right for you. Apply today. We look forward to meeting you.

To learn more about Mission Technologies, click here for a short video:

Mission Technologies, a division of HII, is seeking a high-caliber Senior Mechanical Engineer to join our elite engineering team. Based in Alexandria, VA, you will be the lead mechanical architect for new business captures, transforming mission requirements into ruggedized, high-performance hardware solutions.

This role is not just about CAD; it's about defining the mechanical "win strategy." You will lead the design of enclosures, cooling systems, and integrated platforms for C5ISR, unmanned systems, and electronic warfare applications.

This position supports an on-going proposal. When the proposal is awarded, HII will seek to hire for this position immediately.

Researches, plans, designs and develops mechanical products and systems such as instruments, controls, robots, engines, machines and mechanical, thermal hydraulic or heat transfer systems for production, transmission, measurement, and use of energy. Applies research to the planning, design, development, and testing of mechanical and/or electromechanical systems, instruments, controls, engines, and/or machines.

• 9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; or 4 years relevant experience with PhD or Juris Doctorate in related field.
• Minimum of three (3) years working as a Mechanical Engineer in a commercial environment (May be inclusive with experience working as an Mechanical Engineer)
• Experience working with other development contractors and trades to include non-traditional applications
• Experience implementing Building Automation and System Controls
• Pass the Fundamentals of Engineering (FE) exam
• Experience utilizing 3-dimensional drafting such tools such as CAD, Solidworks, and Revit
• Must possess an active TS/SCI clearance w/Poly

• Possess a Professional Engineering license (PE)
• Experience working in multidisciplinary engineering teams
• Proficiency with electrical industry best practices, regulations, and safety standards
• Previous experience working on large teams

Office, industrial or shipboard environment. Capable of climbing ladders and tolerating confined spaces and extreme temperature variances. Lifting and moving of materials not to exceed the guidelines set for one man lift.

HII is more than a job - it's an opportunity to build a new future. We offer competitive benefits such as best-in-class medical, dental and vision plan choices; wellness resources; employee assistance programs; Savings Plan Options (401(k)); financial planning tools, life insurance; employee discounts; paid holidays and paid time off; tuition reimbursement; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application.

Why HII

We build the world's most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

Recognized as one of America's top large company employers, we are a values and ethics driven organization that puts people's safety and well-being first. Regardless of your role or where you serve, at HII, you'll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career.

Together we are working to ensure a future where everyone can be free and thrive.

All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.

Do You Need Assistance?

If you need a reasonable accommodation for any part of the employment process, please send an e-mail to - and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this email address. Additionally, you may also call for assistance. Press #3 for HII Mission Technologies.