Technician, Engine Assembly Job at Hyliion (Cincinnati)

Job Description

The Technician, Engine Assembly is responsible for the high-accuracy assembly of Karno™ linear generator engine modules. This role supports scaling limited-production builds of a next-generation linear power generation platform. Unlike traditional rotating engines, this role requires exceptional discipline in axial alignment, stack-up control, sealing integrity, and cleanliness, as well as close collaboration with engineering and quality during design maturation, testing, and iteration.

Job Responsibility

Assemble Karno™ linear generator engine modules
Perform axial and concentric alignment of linear components to tight tolerances.
Execute precision stack-up controlled assemblies where tolerance accumulation directly impacts efficiency and reliability.
Apply torque, preload, and fastening sequences per controlled build instructions.
Install and verify critical sealing interfaces supporting high-pressure, high-heat environments
Maintain engine-grade cleanliness standards
Follow detailed work instructions, engineering drawings, torque tables, and build travelers.
Perform in-process inspections and document critical characteristics.
Ensure part serialization and traceability for engine-critical components.
Identify, document, and escalate fitment issues, stack-up or alignment risks, seal integrity or assembly-induced failure risks
Support pre-test mechanical verification, leak checks, and readiness reviews.
Assist with post-test teardown, inspection, and failure analysis.
Rebuild and reconfigure engines based on test feedback and engineering changes.
Work closely with manufacturing and design engineers to refine assembly sequences and tooling.
Provide hands-on feedback to improve assembly methods, tooling and fixtures, error-proofing and standard work
Support PFMEA actions, pilot build readiness, and transition toward limited production.
Participate in safety, quality, and lean manufacturing initiatives.

Requirements

High school diploma or GED required
Technical certification, military technical training, or trade school preferred
3–7 years of precision mechanical assembly experience, ideally in: Advanced engine or power systems
Aerospace or pressure systems
Prototype or pilot manufacturing environments
High-tolerance electromechanical assemblies
Experience with: Seal installation and verification
Press fits and interference fits
Torque and preload-controlled fastening
Experience with free-piston, linear motors/generators, or non-rotating engine architectures preferred
Background in pressure vessels, combustion systems, or high-temperature assemblies preferred
Familiarity with prototype test cycles and teardown-driven learning preferred
Experience working under ISO 9001 / AS9100-style quality systems preferred
Exposure to electromechanical integration (mechanical + stator/translator interfaces) preferred
Strong mechanical aptitude with emphasis on linear motion systems
Proficiency with precision measurement tools: Micrometers, bore gauges, calipers, dial indicators
Feeler gauges and alignment tools
Ability to read and interpret engineering drawings, GD&T, and assembly schematics
Comfortable working with build documentation, travelers, and MES systems
Extreme attention to detail and precision
Discipline in controlled assembly processes
Strong mechanical intuition and problem-solving skills
Comfort working in evolving designs and pilot environments
Ownership of build quality and engine performance outcomes
Ability to lift and/or move up to 50 pounds
Fine motor control and precision hand work for extended periods
Ability to travel, as needed, by plane, automobile, etc.

Nice to have

Technical certification, military technical training, or trade school
Experience with free-piston, linear motors/generators, or non-rotating engine architectures
Background in pressure vessels, combustion systems, or high-temperature assemblies
Familiarity with prototype test cycles and teardown-driven learning
Experience working under ISO 9001 / AS9100-style quality systems
Exposure to electromechanical integration (mechanical + stator/translator interfaces)

What we offer

Medical Plans, with PPO or HDHP options
Dental Plans, with buy-up option
Vision Plan
Life Insurance and Accidental Death & Dismemberment Plans, with buy-up options
Short Term Disability, paid for by the company
Long Term Disability, paid for by the company
Flexible Spending Accounts (FSA)
Health Savings Account (HSA)
401k/Roth 401k
Voluntary Accident Plans
Voluntary Critical Illness Plans
Hospital Indemnity Plan

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Technician, Engine Assembly

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