Senior Mechanical Engineer

Altentechnologyusa; Longmont (CO); On-site; USD 120,000 - 150,000; Full time

Job summary

ALTEN Technology USA is seeking a Senior Mechanical Engineer to design and develop precision components for opto-mechanical systems. Ideal candidates will have a Bachelor's degree in Mechanical Engineering and extensive experience in mechanical design.

Your role will involve collaborating with optical, electrical, and systems engineering teams to ensure design performance meets rigorous standards. The position offers a salary range of $120,000–$150,000 and excellent growth opportunities in a supportive work environment.

Qualifications

• 10-20+ years of experience in mechanical design, flexible based on candidate level.
• Experience with tight tolerance assemblies in rugged environments.
• Strong understanding of GD&T and tolerance stack-up analysis.

Responsibilities

• Design and develop precision mechanical components and assemblies for opto-mechanical systems.
• Support integration of optical elements including lenses, mirrors, and laser paths.
• Ensure designs meet ruggedization requirements such as shock and thermal stability.

Skills

Mechanical Design

Precision Mechanical Design

CAD (SolidWorks)

GD&T Expertise

Cross-Functional Collaboration

Education

Bachelor’s degree in Mechanical Engineering or related field

Tools

SolidWorks

Job description

We’re ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life‑saving medical devices to building autonomous electric vehicles. With 3,000+ experts across North America, we partner with leading companies in aerospace, medical devices, robotics, automotive, commercial vehicles, EVs, rail, and more.

As part of the global ALTEN Group—57,000+ engineers in 30 countries—we deliver across the entire product development cycle, from consulting to full project outsourcing.

When you join ALTEN Technology USA, you’ll collaborate on some of the world’s toughest engineering challenges, supported by mentorship, career growth opportunities, and comprehensive benefits. We take pride in fostering a culture where employees feel valued, supported, and inspired to grow.

Senior Mechanical Engineer

• Design and develop precision mechanical components and assemblies for opto‑mechanical systems
• Experience with thermal, structural, and/or dynamic analysis of optical‑mechanical systems a plus
• Support integration of optical elements including lenses, mirrors, and laser paths into mechanical structures
• Develop and refine pointing and stabilization mechanisms (e.g., gimbals, mounts, precision actuation systems)
• Perform tolerance analysis (GD&T) to ensure optical alignment and system performance
• Collaborate cross‑functionally with optical, electrical, and systems engineering teams
• Support prototype builds, testing, and validation, including troubleshooting and design iteration
• Ensure designs meet ruggedization requirements (shock, vibration, thermal stability)

Qualifications

• Bachelor’s degree in Mechanical Engineering or related field
• 10‑20+ years of experience in mechanical design (level flexible based on candidate)
• Experience with precision mechanical design and tight tolerance assemblies in rugged environments
• Proficiency in CAD tools (SolidWorks preferred)
• Strong understanding of GD&T and tolerance stack‑up analysis
• Experience working in cross‑functional engineering environments

Salary Range

$120,000–$150,000

The actual salary offered is dependent on various factors including, but not limited to, location, the candidate’s combination of job‑related knowledge, qualifications, skills, education, training, and experience.

Note: Due to the nature of the work, only US Persons need apply for this position.

All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, age, genetic information, or pregnancy.

Compliance Notice: Alten USA is a federal contractor subject to the requirements of the Vietnam Era Veterans’ Readjustment Assistance Act (VEVRAA) and Executive Order 11246. We are an Equal Opportunity Employer and consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

Drug Screening Requirement: As a federal contractor, Alten USA maintains a drug‑free workplace. All candidates selected for employment will be required to successfully complete a pre‑employment drug screening as a condition of hire.