ADGE Sr Principal Mech Engineer; On-Site Security Clearance

Position: 2026 ADGE Sr Principal Mech Engineer (On-Site) with Security Clearance
Date Posted:

Country:
United States of America

Location:

MA131:
Tewksbury, MA Bldg 1 Assabet 50 Apple Hill Drive Assabet - Building 1, Tewksbury, MA, 01876 USA
Position Role Type:
Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements:
The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Security Clearance:
DoD Clearance:
Secret

Title:

ADGE Sr Principal Mechanical Engineer (On-Site)

Job Description:

The Air Defense Ground Equipment Mechanical Design Department is responsible for the mechanical design, development, and integration of platform systems. This includes radar and communications shelter systems, electronic subsystems, launchers, hardware integration, and interconnects.
We are seeking a motivated and driven Senior Principal Mechanical Engineer to join our Ground Equipment Design Team. The ideal candidate will bring technical expertise and hands-on experience in mechanical hardware design, system integration, program execution, and production support.
Role is an On-Site role in Tewksbury or Andover, MA

Key Responsibilities:

* Lead execution of major programs within the department, including shelter mechanical design, electronic equipment integration, end-item development, vendor coordination, and the integration of power and cooling systems. Support ongoing sustainment of existing product lines.

* Support and lead cross-functional engineering teams, delivering solutions and services across all phases of the program lifecycle. This may include development of next-generation sensing technologies, enhancements to current products, transition to production, in-field upgrades, and vendor oversight.

* Lead and contribute to proposal efforts and Estimate at Completion (EAC) activities, providing strategic and technical input.

* Serve as a Subject Matter Expert (SME) across multiple programs, providing critical and timely support to ensure successful execution and delivery.
Responsibilities include, but are not limited to:
* Serve as a technical liaison to programs and Integrated Product Teams (IPTs), ensuring alignment across stakeholders.

* Oversee the technical performance of the design team, providing engineering guidance and project support throughout the entire product lifecycle.

* Support and lead Technical Data Package (TDP) development and conduct/oversee thorough peer reviews.

* Drive Hardware Engineering organization initiatives aimed at improving team productivity, technical execution, and overall efficiency.

* Lead mid- to large-sized cross-functional engineering teams as the technical execution lead across all development phases-from proposal generation and program start-up through requirements allocation, preliminary and detailed design, and into first article production.

* Perform complex mechanical design, development, and documentation of components, subassemblies, and major end items for defense system applications, ensuring compliance with system requirements.

* Provide product integration support for both domestic and international factories and suppliers.

* Collaborate with multidisciplinary engineering teams, non-technical stakeholders, and suppliers to develop robust design solutions and resolve technical challenges in support of production and delivery milestones.

* Manage and meet schedule, cost, and technical performance commitments for assigned tasks and projects.

* Apply deep knowledge of hardware engineering best practices to ensure technical excellence. The ability to partner effectively with Chief Engineers and technical leads is essential.

Required Qualifications:

* 12+ years of experience in a Mechanical Engineering role, including a minimum of 8 years focused on the design and development of mechanical equipment-preferably in military or defense environments.

* Demonstrated experience leading engineering teams, with accountability for cost, schedule, and technical performance, along with project management experience in both budgeting and scheduling.

* Proven ability to collaborate effectively in an Integrated Product Team (IPT) environment,…