Senior Specialist, Mechanical Engineer

L3

Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3

Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3

Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title:
Senior Specialist, Mechanical Engineer

Job Code: 46014

Job Location:
Clifton, NJ

Job Schedule: 9/80:
Employees work 9 out of every 14 days – totaling 80 hours worked – and have every other Friday off

Job Description:

We are seeking a motivated, driven, and analytically minded Senior Specialist, Mechanical Engineer to join a dynamic program team focused on the mechanical architecture, design, development, and qualification of high-reliability spaceflight electronics. This role centers on complex subsystems including spaceborne avionics, satellite RF modules, power distribution units, and radiation-shielded microelectronics. The ideal candidate will take ownership of flight-qualified electronic enclosures, ensuring total mission success and survivability against extreme launch vehicle vibration/pyroshock, electromagnetic interference (EMI), and hardware thermal constraints.

Key responsibilities include technical execution across the full product lifecycle, encompassing requirements definition, electrical-mechanical space trade studies, radiation-mitigation packaging, material selection (vacuum compatibility/out gassing), design documentation, and rigorous space environments testing. The successful candidate will bring strong hands-on experience in 3D CAD modeling, high-density space-grade PCBA packaging, and the capability to perform highly focused Electronic Packaging (EP) thermal and structural simulations to validate ruggedized hardware.

A willingness to work in a laboratory or factory floor environment, interface with manufacturing engineers, and engage directly with spaceflight hardware is essential.

Essential Functions:

• Task Ownership: Ability and desire to take full ownership of space-grade electronic packaging tasking while working with general supervision across a variety of high-consequence, mission-critical program activities.
• Stakeholder Communication: Provide clear communication and technical updates, both formally and informally, to internal program leadership, engineering teams, and external aerospace customers or agency representatives (e.g., NASA, Space Force).
• Technical Data Packages: Generation of complete Technical Data Package (TDP) components, including detailed part drawings, space-grade PCBA mechanical outlines, tolerance stack-ups, and flight assembly drawings.
• Prototyping & Cleanroom Integration: Support prototyping, cleanroom integration, and testing of flight-qualified electronic enclosures, internal wire/harness networks, and advanced thermal management components.
• Space Environments Testing: Support and execute rigorous environment test plans for space subsystems (e.g., Thermal Vacuum (TVAC), random vibration, pyroshock, and EMI/EMC shielding compliance to space-industry standards).
• Hardware Evaluation: Perform laboratory testing, diagnostic data collection, and flight-readiness evaluation of component parts, flight connectors, and integrated systems.
• Design Milestones: Participate in and prepare technical materials for peer reviews,…