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Sr Mechanical Designer (On-site)

Nashua, NH 03064

Posted: 06/03/2026 Industry: Aerospace/Defense Job Number: 26-00316

Job Description

We are looking for a Sr. Mechanical Designer to support engineering, design, analysis, and product development efforts within a fast-paced, technically advanced environment.

  • Utilize CAD tools (PTC Creo or similar) to design components, systems, and sub-systems, and modify existing designs to improve production outcomes
  • Support mechanical and electro-mechanical hardware design from conceptual layouts through detailed design and production release
  • Conduct design trade studies, tolerance analysis, and volume/packaging evaluations
  • Plan, develop, release, and control product definition data including engineering models and drawings
  • Take ownership of design specifications and ensure compliance through final product delivery
  • Collaborate with technicians on prototype builds, testing, and engineering hardware development
  • Work cross-functionally with engineering, manufacturing, and program teams to solve problems and meet program objectives
  • Create, maintain, and update engineering records, documentation, and files
  • Perform configuration management activities including Engineering Change Orders (ECOs) and change actions
  • Delegate tasks to designers, drafters, and checkers from concept through production release
  • Work within SAP/SAR or similar systems in secure, on-site program environments

Requirements:

  • Associate degree in engineering sciences or equivalent work experience
  • 10+ years of experience in mechanical design/drafting, including at least 3 years in a senior-level role
  • Strong understanding of GD&T in accordance with ASME Y14.5
  • Experience with full design lifecycle including conceptual development, design, manufacturing, and production support
  • Familiarity with manufacturing processes for mechanical components and assemblies
  • Proficiency with PTC Creo Parametric and related file management systems
  • Active DoD Security Clearance required

Benefits:

  • Health Insurance
  • 401k

 

Pay Range: $59.00 - $64.00 per hour (Depending on experience and qualifications)

 

 

By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from HEPCO, Inc and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.hepcoinc.com/privacy/

 

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, gender expression, marital status, national origin, age, veteran status, disability, or any other protected class.

Meet Your Recruiter

Tom Lee
Senior Vice President of Recruiting and IT Operations

Mr. Lee has over 30 years of experience in the service and retail industries with extensive backgrounds in management, sales, recruiting and training. He is currently a senior member of our recruiting staff serving multiple industries, with a specific focus on personnel with engineering backgrounds. He joined HEPCO in 1992.

As a recruiter he enjoys interacting with people from all walks of life and that every day is different. Outside of the office, Tom is an avid golfer and is skilled at repairing his golf clubs.  

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About Nashua, NH

Discover exciting job opportunities in the vibrant city of Nashua, New Hampshire, and its surrounding areas! Nashua, located in the southern part of the Granite State, offers a perfect blend of small-town charm and big-city amenities. As the state's second-largest city, Nashua boasts a thriving economy, excellent schools, and a welcoming community. With easy access to Boston and Manchester, outdoor enthusiasts will appreciate the nearby White Mountains, while foodies can indulge in local favorites like apple cider doughnuts at Benson's Bakery or unforgettable seafood dishes at Surf Restaurant. Nashua is also home to the enchanting Greeley Park, the renowned Nashua Symphony Orchestra, and the historic Nashua Mill Girls statue, embracing its rich history while embracing a promising future. Explore our job listings today and start your career journey in this dynamic and inspiring region!