Product Engineer

Benefits

• Health
• Dental
• Vision
• HSA/FSA
• Paid time off (PTO)
• Life insurance
• Short- and long-term disability
• 401(k) with Company Match
• Company Parties
• Growth opportunities
• Training & career development opportunities
• Supportive, team-based work culture

At Liberty Systems in Waukesha, WI, we’re hiring a full‑time Product Engineer who is energized by building reliable, real‑world solutions. This engineering role offers a compensation package of $65,000-$80,000/year
, depending on experience, and a suite of benefits.

This role has a full‑time Monday through Friday schedule.

As our Product Engineer, you will participate in every stage of developing dry air and nitrogen generation systems. Your responsibilities include:

• Creating precise mechanical models and system layouts.
• Running engineering calculations to confirm performance.
• Collaborating with senior engineers to select components such as compressors, filters, dryers, regulators, valves, and sensors.
• Producing technical documentation that guides production teams, including P&IDs, BOMs, and assembly drawings.
• Contributing to basic control logic and interface design.
• Participating in prototype assembly and functional tests.
• Executing production validations.
• Troubleshooting issues and supporting continuous improvements.
• Ensuring all work meets ASME, CSA, and ISO requirements.

• Bachelor’s degree in Mechanical, Electrical, or Mechatronics Engineering (or equivalent field).
• 3+ years of relevant engineering experience (internships, co‑ops, or capstone projects acceptable).
• Experience with 3D CAD modeling and drafting (Fusion, Solid Works, or similar).
• Understanding of core engineering principles, including thermodynamics and fluid flow.
• Comfortable working in a fast‑paced, hands‑on environment with cross‑functional teams.
• Strong communication, organization, and problem‑solving skills.

• Experience with system prototyping, field installations, or test procedures.
• Knowledge of compressed air, gas systems, or fluid mechanics.
• Exposure to PSA or membrane nitrogen generation technology.
• Familiarity with Modbus communication, PLC programming, or HMI design.
• Understanding of compliance standards such as CSA B51, NFPA 70/79, or UL/CE marking.

Since our founding in 2004, Liberty Systems has been dedicated to redefining how industries generate and manage their air and nitrogen supply. Rather than offering one‑size‑fits‑all equipment, we focus on engineering customized solutions built for long‑term reliability, efficiency, and performance. Our ISO 9001:2015 certification highlights our commitment to quality, consistency, and continuous improvement values we bring to both our products and our team.

We foster a workplace where collaboration fuels innovation, career growth is encouraged, and every employee’s contribution genuinely matters. When you join Liberty Systems, you become part of a company that values people, rewards dedication, and empowers you to take on meaningful challenges that make a real impact.

Ready to become our Product Engineer? Apply today with our initial application!

Must have the ability to pass a background check and drug screening test.

Salary: $65,000 - $80,000 per year.