Lead Mechanical Engineer - Energetics Systems

AT Process Technologies; Berwick (ME); On-site; USD 90,000 - 135,000; Full time

Job summary

AT Process Technologies (ATP) is building a core team of engineers to develop an autonomous skidded system for next-generation energetics manufacturing. You will own and deliver a subsystem from concept through commissioning, applying solid engineering fundamentals to solve complex problems end-to-end.

The role requires leading hardware design efforts, collaborating with process, chemistry, and automation teams, and ensuring robust, scalable solutions suitable for hazardous, energetic

Qualifications

• Bachelors degree in Mechanical Engineering, Chemical Engineering, Robotics, Mechatronics, or related field.
• 5+ years of professional hardware design and development experience.
• Strong proficiency in 3D modeling and CAD tools (Siemens NX, Fusion 360, or equivalent).
• Demonstrated application of mechanical fundamentals to deliver robust, well-engineered designs.
• Experience owning hands-on, end-to-end hardware development efforts on industry projects or clubs.

Responsibilities

• Own the mechanical design and development of subsystem-level hardware from concept through pilot testing and production.
• Design and fabricate reactors and other continuous process systems.
• Collaborate with a team of engineers to design, build, test, and commission hardware.
• Work with automation and controls engineers on integrated system development.
• Lead hands-on testing, hardware iteration, and rapid prototyping based on performance feedback.
• Drive manufacturability, part selection, and tolerance stack-up for scalable production.
• Perform engineering analyses including stress, thermal, and fluid modeling; conduct DFMEA/DFM.
• Evaluate vendors, lead design reviews, and validate compliance and performance.
• Contribute to test plans, documentation, and engineering reviews.
• Travel to ATP sites, customer locations, and vendor facilities as needed.

Skills

3D CAD

Mechanical design

End-to-end hardware

Engineering fundamentals

Team collaboration

Education

Bachelor's degree in ME

Tools

Siemens NX

Fusion 360

Job description

AT Process Technologies (ATP) is building a core team of engineers to develop an autonomous skidded system for next-generation energetics manufacturing. You will own and deliver a subsystem from concept through commissioning, applying solid engineering fundamentals to solve complex problems end-to-end.

The role requires leading hardware design efforts, collaborating with process, chemistry, and automation teams, and ensuring robust, scalable solutions suitable for hazardous, energetic