Senior Specialist, Mechanical Engineer (Mechanisms)
L3HARRIS Technologies
Chantilly, VA · Posted November 4, 2026
Just laid off? Start here: a plan for the first weeks
See every open role at L3HARRIS Technologies
More in Virginia job market · Aerospace & Defense · Engineering jobs
More roles at L3HARRIS Technologies
- Senior Manager, Program Management (PMX Leader & Chief of Staff) · Melbourne, FL
- Principal, Contracts · Salt Lake City, UT
- Senior Principal, Global Trade Compliance Counsel · Melbourne, FL
- Sr. Manager, Systems Engineering · San Diego, CA
- Principal, Supply Chain Program Management · Fort Wayne, IN
- Director, Aerospace Engineering · Waco, TX
Similar jobs
- Application Engineer I · Trane U.s. · Chesapeake, VA
- Applications Engineer I · Trane U.s. · Roanoke, VA
- Lead Mechanical Field Engineer · Bechtel Plant Machinery
- Staff Mechanical Engineer · Sikorsky Aircraft · Littleton, CO
- Sr. Design Quality Engineer · Medtronic MiniMed · Memphis, TN
- Sr. Mechanical Engineer · Ametek SCP · Germantown, MD
Where Chantilly, VA ranks
Where Chantilly, VA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Best cities for pay after cost of living in the Mid-Atlantic$192k · of 37
- #1Best cities for pay after cost of living in the Southeast$192k · of 33
- #1Best cities for pay after cost of living in Virginia$192k · of 15
- #2Best all-round cities for mid-career professionals in the Mid-Atlantic78 / 100 · of 37
- #4Best cities for mid-career professionals66% · of 100
- #5Best cities for engineering pay after cost of living$198k · of 94
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
AI use among mechanical engineers is little observed so far. Measured exposure for mechanical engineers: 8% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
About the job
Job Title: Sr. Specialist, Mechanical Engineer (Mechanisms)
Job Code: 47356
Job Location: Chantilly, VA (on-site at any of these locations)
Job Schedule: 9/80 - Employees work 9 out of every 14 days - totaling 80 hours worked (Every Other Friday Off)
*** Sign-on bonuses available for qualified candidates with a current Polygraph ***
Job Description:
During its 120-year history, L3Harris has transformed communications and information technology. L3Harris is a proven leader in tactical communications, geospatial systems and services, air traffic management, environmental solutions, avionics and electronic warfare, and space and intelligence. From ocean to orbit and everywhere in between, we provide mission-critical solutions to connect, inform and protect the world. On the L3Harris team, your job is to secure the world. We don't work here just for the advanced technology and equipment: we work here because we know what - and who - we're protecting! From families to the intelligence community, and from our climate to our men and women in uniform - we're making the world a safer place!
Design and qualify the precision mechanisms behind mission systems used in complex, high-consequence environments. You’ll own major components and sub-systems from early concepts through integration and test, helping L3Harris deliver dependable capability for customers executing their most challenging missions.
This is an on-site role because the work includes direct lab, prototype, integration, and hardware-test activity onsite.
Essential Functions:
Lead mechanical design, analysis, prototype integration, and qualification testing for precision mechanisms and electro-mechanical hardware.
Develop 3D models, drawings, technical data packages, and assembly documentation.
Evaluate material selections and design trades; improve designs for performance, size, weight, power, manufacturability, and reliability.
Plan and execute component and system-level tests; analyze results and drive design improvements.
Present designs and results at internal and customer reviews, including peer reviews, PDRs, and CDRs.
Partner with manufacturing, quality, configuration management, suppliers, technicians, and the program test team to transition designs into production.
Support field-test or demonstration activities as needed.
Ability to work on-site in a mix of office and laboratory environments.
Qualifications:
Bachelor’s Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience.
Active Top Secret or Top Secret/SCI clearance is required. (Active within the last two years will be considered).
Preferred Additional Skills:
Hands-on experience designing, developing, integrating, and testing complex mechanical hardware.
Experience with 3D mechanical CAD, engineering drawings, and tolerance analysis/GD&T.
Experience in design or development of precision mechanisms, mechatronic systems, and/or packaging of modules and electronics with considerations of thermal and structural loading and for optimizations of size, weight, and power.
Proficiency in CAD tools such as Creo and understanding of ASME Y14.5 Geometric Dimensioning and Tolerancing standards.
Experience in additive manufacturing, part optimization, and design for manufacture and assembly a plus.
Experience with any of the following: actuators, custom gear trains, electro-optical systems, materials testing, and manufacturing processes.
Favorable polygraph.
In compliance with pay transparency requirements, the salary range for this role in California, Massachusetts, New Jersey, Washington, and the Greater D.C, Denver, or NYC areas is $102,000 MIN - $189,500 MAX. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.
#LI-FS1