Jobs in the United States

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Added 5 hours ago
Principal Optomechanical Engineer - 3
SP - Launch Vehicles
United States
Northrop Grumman Space Systems is looking for a Principal Optomechanical Engineer - 3 to support the Electro-Optics Group within the Launch Vehicles business unit in Chandler, Arizona.
Added 7 hours ago
Principal Engineer, Fly-By-Wire
Executive Recruiting Group
San Luis Obispo, CA
We are seeking a FBW Engineer who will support our flight performance and safety. As the Principal Engineer, you will work with research & development of VMS including critical electronics…
Added 9 hours ago
AS
Principal Network Engineer/ SME
AMERICAN SYSTEMS
Colorado Springs, CO
- $31,533 USD / year
As a Principal Network Engineer, SME you will have the opportunity to do the following:
Added 11 hours ago
Sentinel - Principal Systems Safety Engineer - 17339
Northrop Grumman
Huntsville, AL
Northrop Grumman Defense Systems is seeking to hire a Principal Systems Safety Engineer to join its team of diverse and qualified individuals. This position will be located in Roy, Utah or…
Added 11 hours ago
Sentinel - Systems / Principal Systems Safety Engineer
Northrop Grumman
Huntsville, AL
Northrop Grumman Defense Systems is seeking a Systems Safety Engineer / Principal Systems Safety Engineer . This position is located in Roy, UT or Huntsville, Alabama and supports the…
Added 16 hours ago
NS
Principal Digital Design Engineer
NAVITAS SEMICONDUCTOR USA, INC.
Torrance, CA
- $170,000 to $190,000 USD / year
We are seeking a Principal Digital Design Engineer to join our fast-growing, collaborative team. The ideal candidate is self-motivated, energetic, and able to thrive in a high-growth,…
Added 19 hours ago
Principal Laser Engineer
BAE Systems
Merrimack, NH
The Principal Laser Engineer will help develop and mature advanced laser system products. This will include the design, analysis, build and test of laser and optical subsystems.…
Added 22 hours ago
TT
Principal Analog/Mixed-Signal Engineer
True Talent Solutions Partners
Boston, MA
- $200,000 to $325,000 USD / year
Join an AI and computing hardware team developing CMOS chips for probabilistic computing. As a Principal Analog/Mixed-Signal Engineer, you will lead circuit design and help shape…
Added 23 hours ago
Radiation Systems Engineer - Level 3 or 4 (AHT)
Northrop Grumman
Redondo Beach
Northrop Grumman’s Space Systems Sector is seeking a Radiation Systems Engineer – Level 3 or 4 to join our team in Redondo Beach, CA. This position can be filled at either Level 3 Principal…
Added 1 day ago
Principal Product Engineer - Cloud and Hyperscale Platforms
Jabil
Austin, TX
Job Posting Title: Principal Product Engineer- Cloud and Hyperscale Platforms
Added 1 day ago
Design and Analysis Engineer - Avionics Test (Associate or Mid-Level)
The Boeing Company
Eglin AFB, FL
The Boeing Company is seeking a Design & Analysis Engineer to support the Richter Avionics Lab at Eglin Air Force Base, Florida .
Added 1 day ago
Senior Principal / Principal Flight Test Instrumentation Engineer
Northrop Grumman
Melbourne, FL
Northrop Grumman Aerospace Systems has an opening for a Flight test Instrumentation Engineer (Principal Engineer/Sr Principal Engineer) to join our team of qualified, diverse individuals.…
Added 1 day ago
Engineer or Principal Engineer level RF Electronics Engineer
Northrop Grumman
Melbourne, FL
Northrop Grumman’s Aeronautics Systems sector has an opening for a Engineer or Principal Engineer level RF Electronics Engineer to join our team of qualified, diverse individuals within our…
Added 1 day ago
Principal, Mechanical Design Engineer
L3Harris
Orlando, FL
Job Title: Principal, Mechanical Design Engineer
Added 1 day ago
SC
Principal Consultant
Softchoice Corporati
Denver, CO
- $158,720 to $198,400 USD / year
…(ATC), a collaborative ecosystem featuring state-of-the-art hardware and software that enables customers and partners to conceptualize, test, and validate innovative solutions before…
Added 1 day ago
SC
Principal Consultant
Softchoice Corporati
Denver, CO
- $158,720 to $198,400 USD / year
…(ATC), a collaborative ecosystem featuring state-of-the-art hardware and software that enables customers and partners to conceptualize, test, and validate innovative solutions before…
Added 1 day ago
M
Principal Test Engineer
Microsoft
OR · TX · WA · CA · Hillsboro, OR · Austin, TX · Redmond, WA · Mountain View, CA · Hillsboro · Austin · Redmond · Mountain View
- $142,800 to $304,200 USD / year
We are looking for a Principal Test Engineer to join the team.
Added 1 day ago
Principal or Sr. Principal Engineer Electronics - Weapons Responsible Engineer
Northrop Grumman
Oklahoma City, OK
…requirements to ensure supplier compliance with program and AV design, test, document and Avionics Radar subsystems hardware…
Added 1 day ago
Principal Mechanical Engineer/Sr. Principal Mechanical Engineer
Northrop Grumman
Oklahoma City, OK
Advanced Test and Support Systems (ATSS) is seeking a Principle Mechanical Engineer / Senior Principle Mechanical Engineer (Level 3/4) to join our team of qualified and diverse individuals…
Added 1 day ago
M
Principal Hardware Engineer
Microsoft
CA · TX · OR · DC · San Diego, CA · Austin, TX · Hillsboro, OR · Mountain View, CA · Washington, DC · Aliso Viejo, CA · San Diego · Austin · Hillsboro · Mountain View · Washington · Aliso Viejo
- $142,800 to $304,200 USD / year
We are seeking a Lead Engineer to drive the Certified Device List (CDL) qualification program for hard disk drives (HDDs), solid state drives (SSDs), and PCIe switches. This role will lead…
Added 1 day ago
Sentinel - Principal Material Process Engineer
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Principal Mechanical Engineer to join our team. This position will be located at Roy, UT to support the Sentinel (GBSD) program in the…
Added 1 day ago
Cleared Senior/Principal R&D Mechanical Engineer - W87-0/Sentinel Integration, Onsite
Sandia National Laboratories
Livermore, CA
Our people are designing and building a suite of flight test vehicles to enable W87-0 integration on the Air Force's Sentinel missile. This is a highly collaborative work environment where…
Added 1 day ago
Cleared Senior/Principal R&D Electrical Engineer - W87-0/Sentinel Integration, Onsite
Sandia National Laboratories
Livermore, CA
Our people are designing and building a suite of flight test vehicles to enable W87-0 integration on the Air Force's Sentinel missile. This is a highly collaborative work environment where…
Added 1 day ago
Optical Systems Engineer (Senior, Principal) - Millennium Space Systems
The Boeing Company
El Segundo, CA
Experience with design, integration, qualification, and test of satellite optical hardware such as EO/IR payloads, star trackers, laser range finders, etc.
Added 1 day ago
Sr. Principal Systems Engineer - Configuration Manager
Northrop Grumman
Redondo Beach, CA · El Segundo, CA
Northrop Grumman Aeronautics Systems has an opening for a Staff System Engineer-Configuration Management to join our team of qualified, diverse individuals within our Systems Engineering…

Actalent

Principal Mechanical Engineer

Nashua, NH, United States

The pay range for this position is $66.00 - $89.00/hr.

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Job details

Pay: The pay range for this position is $66.00 - $89.00/hr.
Posting language: English
Posted: Oct 16, 2026

Original job description

Job Title: Principal Mechanical Engineer

Job Description

We are seeking a highly motivated Principal Mechanical Engineer to provide technical leadership in the design, development, analysis, and integration of advanced electronic warfare, countermeasure, and electromagnetic attack systems. This role combines hands-on engineering with team leadership and mentorship, supporting the full product lifecycle from concept development through qualification and production. The ideal candidate is a proven mechanical engineering leader with deep experience in hardware design, structural and thermal analysis, and military electronic systems integration.

Responsibilities

Lead and support a team of mechanical engineers in the design, development, and integration of complex countermeasure and electromagnetic attack solutions.
Develop robust mechanical hardware solutions that meet demanding customer, program, and environmental requirements.
Provide technical leadership, guidance, and mentorship to engineers, helping develop future technical leaders within the organization.
Perform and review detailed mechanical designs and engineering analyses, including structural, thermal, and environmental assessments.
Create and evaluate 3D solid models, engineering drawings, and product definitions.
Apply GD&T principles and perform tolerance stack-up analyses to ensure proper fit, form, and function.
Assess hardware designs for manufacturability, reliability, and environmental compliance.
Support prototype development, hardware integration, testing, and verification activities.
Collaborate closely with electrical, systems, manufacturing, and test engineering teams throughout the product lifecycle.
Support technical design reviews and provide engineering recommendations to program leadership.

Essential Skills

Bachelor's degree in Mechanical Engineering or a related engineering discipline.
Significant experience in mechanical design, product development, and engineering analysis.
Strong experience in structural and thermal analysis of complex hardware systems.
Experience working with integrated military electronic hardware and associated test equipment.
Demonstrated leadership experience guiding technical teams and mentoring engineers.
Proficiency with 3D CAD modeling and mechanical product definition tools.
Strong understanding and application of GD&T and tolerance analysis methodologies.
Excellent written and verbal communication skills.
Ability to work effectively both independently and within small multidisciplinary teams.
Strong problem-solving skills and the ability to execute complex technical projects from concept through validation.

Additional Skills & Qualifications

Experience supporting electronic warfare, countermeasure, RF, or electromagnetic attack systems.
Experience with environmental qualification testing and military hardware requirements.
Familiarity with prototype development, hardware integration, and verification testing.
Experience leading design reviews and cross-functional engineering efforts.
Experience in defense or aerospace product development.

Work Environment

The work environment includes collaboration with multidisciplinary teams, utilizing advanced technologies and equipment. The role requires flexibility in working hours to support various stages of product development. Expect a professional setting where innovation and technical excellence are highly valued.

Job Type & Location

This is a Contract position based out of Nashua, NH.

Pay and Benefits

The pay range for this position is $66.00 - $89.00/hr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)

Job Type & Location

This is a Contract position based out of Nashua, NH.

Application Deadline

This position is anticipated to close on Oct 29, 2026.

Workplace Type

This is a fully onsite position in Nashua,NH.

About Actalent

Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. We are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email actalentaccommodation@actalentservices.com for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.

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More about this job

Skills

Leadership
Team leadership
Regulatory compliance
Mechanical engineering
Coaching
Communication skills
Problem solving
Military weaponry
Collaboration

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