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Senior Mechanical Engineer I​/II - Secret Clearance Security Clearance

Job in Tucson, Pima County, Arizona, 85705, USA
Listing for: Rocket Lab
Full Time position
Listed on 2026-01-08
Job specializations:
  • Engineering
    Systems Engineer, Mechanical Engineer, Engineering Design & Technologists, Aerospace / Aviation / Avionics
Job Description & How to Apply Below
Position: Senior Mechanical Engineer I/II - Secret Clearance with Security Clearance
SENIOR MECHANICAL ENGINEER I/II, SPACE PAYLOADS - SECRET CLEARANCE Rocket Lab’s Optical Systems division solves mission-critical space domain and Intelligence, Surveillance, and Reconnaissance (ISR) challenges for Department of Defense (DoD) and Intelligence Community (IC) customers. Our vision is to revolutionize the space-based payload market with innovative and novel designs for space, terrestrial, and airborne environments. Building on more than 20 years of electro-optical and infrared systems innovation from Geost, Optical Systems delivers solutions to the warfighter for responsive, scalable sensing solutions across all orbital domains.

As a Senior Mechanical Engineer I/II based at our Optical Systems site in Tucson, AZ, you will have the opportunity to support multiple advanced space payload and IRAD programs. In this role you will contribute to technical programs across all phases, and be an integral part of the design, development, build, and test of flight hardware. To be successful in this role, you must bring curiosity, adaptability, a passion for teamwork, and keen attention to detail.

Join a driven team of pioneers relentlessly tackling challenging projects, delivering on the impossible, and making an impact on the future of space! (

Please note:

this position can be hired at the Senior Mechanical Engineer I or Senior Mechanical Engineer II level) WHAT YOU’LL GET TO DO:
Produce mechanical concepts and designs for a wide variety of hardware and projects
Work with machine shops and vendors to complete fabrication of designs
See designs through to successful integration and test
Use investigative and trouble-shooting skills to assess issues and develop resolutions in the lab
Work proactively to complete tasks with some modest direction
Communicate effectively with direct supervisor, project management, customers, and team members across disciplines
Significantly contribute to program and customer meetings and reviews
Attend technical interchange meetings with team members and other project personnel, and represent the organization in matters pertaining to the development of the project(s)
Provide status on assigned tasks and program schedules
Provide document review and resolve technical engineering and integration issues
Support travel as required, including working off-site QUALIFICATIONS YOU’LL BRING AS SENIOR MECHANICAL ENGINEER I:
Bachelor’s degree in engineering or other technical discipline
Active Secret clearance with TS/SCI eligibility
5+ years of mechanical design experience
Strong computer skills and experience with CAD modeling and drawing
Ability to write clear and comprehensive technical documentation QUALIFICATIONS YOU’LL BRING AS SENIOR MECHANICAL ENGINEER II:
Bachelor’s degree in engineering or other technical discipline
Active Secret clearance with TS/SCI eligibility
8+ years of mechanical design experience
Strong computer skills and experience with CAD modeling and drawing
Ability to write clear and comprehensive technical documentation THESE QUALIFICATIONS WOULD BE NICE TO HAVE:

Experience with FEA/FEM

Experience with FEA/FEM

Experience with mechanism design

Experience with materials engineering and processes

Experience with environmental testing

Experience with Solid Works or NX
Experience in implementation and understanding of Geometric Dimensioning & Tolerancing
Experience as an REA (Responsible Engineering Authority) or familiarity with documentation process controls

Experience with mechanical design associated with optical and electro-optical systems
Hands-on expertise with optical systems, telescope systems, laser systems, and/or space systems
Experience designing optical mounts for use in various demanding applications and environments
Experience performing and working in a dynamic and high-visibility role
Ability to manage time and resources in order to meet assigned deadlines
Excellent written and verbal communication skills, and ability to problem solve
Team player who incorporates a team-based success philosophy and seeks mentorship

ADDITIONAL REQUIREMENTS:

Specific vision abilities required by this job include close vision, distance vision, peripheral vision, depth perception, and the ability to focus Regularly required to sit, use hands and fingers, operate computer keyboard and controls, and communicate verbally and in writing
Must be physically able to commute to buildings Occasional exposure to dust, fumes and moderate levels of noise
Position Requirements
10+ Years work experience
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