Mechanical Engineer II

Alten USA; Longmont (CO); On-site; USD 100,000 - 140,000; Full time

Job summary

Alten USA is seeking a Mechanical Engineer II to design and develop precision mechanical components for opto‑mechanical systems in Colorado. You will apply GD&T, tolerance analysis, and CAD (SolidWorks preferred) to ensure rugged performance while supporting prototypes and design iteration.

Collaborate across optical, electrical, and systems engineering teams to integrate lenses, mounts, and laser paths into robust assemblies.

Qualifications

• Bachelor’s degree in Mechanical Engineering or related field.
• 3–10 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.

Responsibilities

• Design and develop precision mechanical components and assemblies for opto‑mechanical systems.
• 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).

Skills

GD&T understanding

Tolerance analysis

Mechanical design

Cross-functional collaboration

Education

Bachelor's in Mechanical Engineering

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.

As a Mechanical Engineer II you will be responsible for;

• Design and develop precision mechanical components and assemblies for opto‑mechanical systems

• 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

• 3–10 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: $100k-$140k

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.