Mechanical Engineer

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.

Position Overview

The Hagerstown EATS team is looking for an experienced engineer to contribute to the development and advancement of engine aftertreatment hardware systems. This position offers the opportunity to work in a technically demanding, fast-moving environment while collaborating with engineering teams, suppliers, and other functional organizations.

The position will report to the Group Manager responsible for Aftertreatment Engineering.

Key Responsibilities

Contribute to the design, development, validation, and production launch of engine aftertreatment hardware in partnership with suppliers and engineering organizations worldwide.

Develop test plans and conduct EATS system testing, verification, and validation using test rigs, engine test cells, and vehicles.

Partner with cross-functional teams, including Engine Engineering, Aftertreatment Engineering, On-Board Diagnostics Software, and Calibration teams, both locally and internationally.

Execute engineering test procedures accurately and efficiently while evaluating test results to verify data quality and system performance.

Prepare and communicate technical findings through clear written documentation and presentations.

Investigate customer and field issues related to aftertreatment systems and develop effective engineering solutions.

Develop, release, and implement calibration updates for production and aftermarket applications.

Travel domestically and internationally as needed to support engineering activities, testing, suppliers, or other business requirements.

Candidate Profile

This role requires an engineer who is comfortable working across a range of technical activities and contributing effectively within a collaborative engineering organization. Success in this position requires a combination of technical capability, analytical thinking, accountability, and strong interpersonal skills.

We are looking for someone who demonstrates:

Collaboration: Builds productive relationships across functions and organizations, communicates openly, and contributes toward shared objectives.

Accountability: Takes ownership of assigned work, follows through on commitments, and accepts responsibility for decisions, actions, and results.

Analytical Thinking: Interprets technical data, identifies trends and relationships, develops logical conclusions, and uses evidence to recommend appropriate actions.

Attention to Detail: Maintains high standards for accuracy, follows established processes, and carefully reviews engineering data and results.

Technical Expertise: Develops and maintains a strong understanding of relevant engineering technologies, processes, and industry practices.

Required Qualifications

Bachelor's or Master's degree in Mechanical Engineering, Chemical Engineering, Electrical Engineering, or a closely related engineering discipline.

Approximately 2–5+ years of relevant engineering experience.

Practical experience with diesel engines and/or exhaust aftertreatment system development.

Strong written, verbal, and technical presentation skills.

Ability to work independently, prioritize responsibilities, and take initiative with limited supervision.

Demonstrated ability to identify and resolve complex engineering problems within established timelines.

Ability to work effectively with cross-functional and geographically distributed teams.

Customer-focused and results-oriented approach to engineering.

Preferred Qualifications

Experience with catalyst coating technologies, substrates, or related chemistry.

Experience in engine aftertreatment hardware development, testing, validation, or calibration.

Demonstrated interest in developing innovative engineering solutions and improving product performance.

Salary Range: $75,000-78,000

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

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.

Please beware of job seeker scams and see this important notice on our careers page for more information about our recruiting process.

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.