Senior Mechanical Engineer

Altentechnologyusa; Westminster (CO); On-site; USD 100,000 - 160,000; Full time

Job summary

ALTEN Technology USA in Westminster, CO is seeking a Senior Mechanical Engineer to drive design, testing, and leadership across complex programs. You will develop mechanical concepts, lead the engineering team, and ensure documentation, BOMs, and drawings meet regulatory standards.

The role requires a Bachelor’s in Mechanical Engineering, 7+ years of related experience, CAD proficiency, and strong communication and project management skills. Location is Westminster, CO with a competitive salary.

Qualifications

• Bachelor’s degree in Mechanical Engineering and relevant professional experience.
• 7+ years of experience in mechanical design or related engineering fields.
• Master’s degree may substitute for 2 years of experience.
• Strong understanding of design principles, tolerance analysis, and calculations.
• Proficiency with CAD tools and standard engineering software.
• Experience with prototype assembly and testing.
• Ability to anticipate and mitigate technical risks.
• Excellent communication, organizational, and project management skills.
• Familiarity with regulatory compliance and documentation standards.

Responsibilities

• Lead the Mechanical Engineering team within a project, providing technical leadership and development.
• Develop, test, and lead mechanical designs, including BOMs, drawings, and calculations.
• Define work breakdown structures from specifications and derived requirements.
• Track team progress and budget to support schedules.
• Prepare and maintain engineering documentation to ensure regulatory compliance.
• Lead design reviews to ensure design quality and project success.

Skills

Mechanical design

Tolerance analysis

Engineering calculations

Project management

Regulatory knowledge

Education

Bachelor’s degree in Mechanical Engineering

Tools

CAD software

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 Senior Mechanical Engineer you will be responsible for;

• Develop, test, and lead mechanical designs, including trade studies, concept and detailed designs, BOMs, drawings, engineering calculations, tolerance analysis, and associated documentation.
• Lead the Mechanical Engineering team within a project, serving as the primary resource for technical leadership, oversight, and development. Identify and recommend training or performance improvement opportunities as needed.
• Ensure technical accuracy and maintain scoped product or system features.
• Define work breakdown structures from initial specifications and/or derived requirements.
• Track team progress and efficiency to support project schedule and budget.
• Implement product designs using engineering principles and standard tools.
• Utilize analysis tools to verify design concepts.
• Assemble, test, and evaluate prototypes for functionality and performance.
• Anticipate technical uncertainties and identify design and product risks with appropriate mitigations.
• Identify scope changes and propose resolution options to project leaders.
• Prepare and maintain engineering documentation to ensure compliance with regulatory requirements.
• Complete tasks within estimated timeframes (+/- 10%) and predict potential overruns before they occur.
• Ensure design quality by leading and participating in design reviews

Qualifications;

• Bachelor’s degree in Mechanical Engineering or a related technical field from an accredited institution.
• Minimum of 7 years of professional experience in mechanical design or related engineering roles.
• A Master’s degree in an engineering field may substitute for 2 years of professional experience.
• Strong understanding of mechanical design principles, tolerance analysis, and engineering calculations.
• Proficiency in CAD software and standard engineering tools.
• Experience with prototype assembly and testing.
• Ability to anticipate and mitigate technical risks.
• Excellent communication, organizational, and project management skills.
• Familiarity with regulatory compliance and documentation standards.

Location: Westminster, CO

Salary Range: $100,000 - $160,000

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 (citizens or permanent residents) 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.