Supervisor, Engine Build Job at Hyliion (Austin)

Job Description

The Supervisor, Engine Build is a Player-Coach and a hands-on manufacturing leader responsible for both executing and supervising the precision assembly of KARNO™ linear genset engines. This role spends 50–70% of time on the floor actively overseeing the building engines, while also owning daily production coordination, quality discipline, and technician development. This position bridges engineering intent and production reality, ensuring engines are built right the first time while continuously improving repeatability, learning velocity, and scale readiness. Success in this role requires deep mechanical skill, strong situational leadership, and the ability to teach by example.

Job Responsibility

Hands-On Engine Assembly (Player Role): Oversee and be able to personally perform critical or high-risk engine assembly operations
Serve as the go-to technical expert for complex assemblies and rework
Validate new or revised work instructions through first-article builds
Support engine teardown, inspection, and rebuild following test events
Daily Production Leadership (Coach Role): Lead daily engine build execution aligned to production & test plans and engineering priorities
Assign work based on technician skill level and build risk
Run start-of-shift standups covering safety, quality, cleanliness, build priorities, and updates
Quality & Process Ownership: Own first-time-through build quality at the engine level
Ensure strict adherence to build travelers, work instructions, torque, preload, alignment, and sealing specs
Lead immediate containment for assembly errors, fitment issues, or seal escapes
Drive corrective actions into standard work, tooling, and training
Technician Development & Coaching: Actively train technicians on the floor through side-by-side builds and real-time coaching
Qualify technicians on critical operations and new build steps
Set and reinforce expectations for craftsmanship, documentation, and accountability
Test Feedback & Continuous Improvement: Partner with End of Line (EOL) test and engineering to prepare engines for test and support post-test teardown
Translate test findings into assembly improvements and updated work instructions
Support PFMEA updates and error-proofing implementation
Identify opportunities to improve build cycle time, repeatability, yield, ergonomics, and safety

Requirements

High school diploma or GED required
Technical certification or trade training preferred
6–10 years of precision mechanical assembly experience
2+ years as a lead technician or working supervisor
Experience in prototype or pilot build environments
Background in one or more of the following: Advanced engines or power systems, Aerospace or pressure systems, High-tolerance electromechanical assemblies
Expert-level hands-on ability in: Precision mechanical assembly, Linear motion and alignment-sensitive builds, Seal installation and verification
Proficiency with: Torque and preload-controlled fastening, Micrometers, bore gauges, dial indicators, feeler gauges
Strong ability to read and interpret: Engineering drawings and GD&T, Build travelers and work instructions
Comfortable working in rapid iteration environments with frequent ECNs
Credibility as a working leader and able to teach through action
Strong situational leadership and decision-making skills
Clear communication between technicians, engineering, and management
Bias toward ownership, accountability, and continuous learning

Nice to have

Experience with free-piston engines, linear generators, or non-rotating architecture
Background in combustion systems, pressure vessels, or thermal-mechanical assemblies
Familiarity with ISO 9001 / AS9100-style quality systems
Prior involvement in scaling from prototype to pilot production

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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Supervisor, Engine Build

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