# 26-00054J Mechanical Engineer III

**Company:** [MBAcsi](http://jobs.workable.com/companies/q6fXNJyYTPji8zPvQhm4ch.md)
**Location:** Merrifield, United States
**Workplace:** on site
**Employment type:** Full-time
**Department:** USPS-Engineering

[Apply for this job](http://jobs.workable.com/view/77e158dc-3994-463f-9f5f-445ff5228f93)

## Description

### Mechanical Engineer III – Industrial Automation & Prototype Development

**Location:** Merrifield, VA (Onsite)

### Design. Build. Solve.

Do you enjoy taking an idea from a sketch to a working prototype? Are you the engineer others rely on when complex equipment needs a practical solution?

Join our team supporting the **U.S. Postal Service Engineering Headquarters**, where you'll help improve one of the largest automated package sorting networks in the country. As a **Mechanical Engineer III**, you'll design, prototype, troubleshoot, and modernize the equipment that keeps millions of packages moving every day.

This is more than a design role—you'll spend time in the engineering lab, machine shop, and field turning concepts into real-world solutions.

### What You'll Do

As part of the Package Sorting Technology Group, you'll:

-   Design, fabricate, machine, weld, and assemble mechanical and electrical prototypes
-   Create custom fixtures, tooling, brackets, carts, test equipment, and ergonomic workstations
-   Design mechanical components and assemblies using 3D CAD software
-   Evaluate and replace obsolete (End-of-Life) components used in automated package sorting equipment
-   Engineer retrofit solutions that improve equipment reliability, safety, and performance
-   Troubleshoot mechanical, pneumatic, electrical, and automation issues affecting production systems
-   Perform root cause analysis to eliminate recurring equipment failures and operational bottlenecks
-   Design custom tools and semi-automated equipment that improve productivity and reduce operator fatigue
-   Participate in engineering design reviews and collaborate with project managers, suppliers, maintenance teams, and safety personnel
-   Conduct field inspections and develop Modification Work Orders (MWOs) for equipment upgrades deployed nationwide

### What We're Looking For

### Required Qualifications

-   Bachelor's degree in Mechanical Engineering or a related engineering discipline
-   **4+ years** of mechanical engineering experience
-   Experience supporting industrial automation, material handling systems, manufacturing equipment, or conveyor systems
-   Hands-on experience with prototype fabrication, machining, welding, and mechanical assembly
-   Proficiency with 3D CAD modeling and engineering drawings
-   Experience interpreting fabrication prints and GD&T
-   Knowledge of pneumatic systems and industrial mechanical equipment
-   Strong troubleshooting, analytical, and root cause analysis skills
-   Experience creating technical documentation, retrofit instructions, or engineering procedures

### Preferred Qualifications

-   Experience with package, parcel, mail, or logistics automation systems
-   Experience designing industrial grounding or static mitigation systems
-   Knowledge of industrial electrical circuits, E-stop systems, or LED indicator controls
-   Experience documenting engineering projects using drone photography or video
-   Familiarity working with OSHA, safety, or facility engineering teams

### Why Join Our Team?

You'll work on engineering projects that have a direct impact on the nation's postal infrastructure. Your ideas won't stay on paper—you'll design, build, test, and deploy solutions used in USPS facilities across the country.

### What We Offer

-   Competitive Salary
-   Medical, Dental & Vision Insurance
-   401(k) Retirement Plan
-   Life Insurance
-   Short-Term & Long-Term Disability
-   Paid Vacation, Sick Leave & Company Holidays
-   Paid Parental Leave
-   Professional Development & Training
-   Opportunity to work on large-scale industrial automation projects

### Additional Information

-   **Location:** Merrifield, VA
-   **Schedule:** Monday–Friday, 8:00 AM–5:00 PM
-   **Travel:** Less than 10%
-   Occasional evening or weekend support may be required
-   Must successfully pass a pre-employment background check and drug screening.

**Ready to build solutions that keep America moving? Apply today and become part of a team that's engineering the future of package automation.**