Jobs and Careers

Senior Mechanical Engineer – Generator & Fuel Systems

United Statesfull_timeVerifiedPosted 5 Jun 2026

About the role

GTI is a contract manufacturing partner supporting customers in renewable energy, power generation, infrastructure, and industrial systems.

We fabricate custom designed, purpose-built enclosures and skids for our customers and perform mechanical and electrical integration in-house, delivering a true turn-key product to our customers. Our scope spans Engineering, prototype builds, through full production, requiring teams that can move fast, adapt, and execute with precision.

GTI Values: Safey I Quality I Customer Obsession I Speed I Agility

Position Overview
GTI is seeking a Senior Mechanical Engineer to lead the design and development of modular power infrastructure systems. This role is responsible for the mechanical integration of generators, cooling systems, exhaust systems, structural assemblies, fuel systems, and enclosure platforms into factory-built modular solutions. The ideal candidate has experience designing complex industrial equipment and bringing products from concept through manufacturing and deployment.

Key Responsibilities

Generator System Design Ownership

Own full mechanical design of generator systems from concept, prototype, validation, and production release
Develop integrated system layouts including enclosure, fuel systems, radiator systems, exhaust systems, service access, and structural packaging
Ensure designs support manufacturability, installation, serviceability, lifting, transport, and long-term durability
Operate as the primary mechanical owner of the complete generator product

Enclosure, Base Frame & Structural Packaging

Design generator enclosures, skid bases, and structural frames that align with fabrication and assembly capabilities
Develop layouts for component placement, maintenance access, airflow clearance, lifting points, and shipping requirements
Design weldments, sheet metal assemblies, and bolted mechanical structures for production readiness
Improve enclosure and frame designs to reduce rework, improve throughput, and enhance field installation success

Fuel Systems Engineering

Own fuel system design end-to-end including subbase tanks, belly tanks, day tanks, and associated fuel delivery systems
Design UL 142 compliant storage tanks including double-wall construction, leak detection, venting, fill systems, and containment features
Size fuel systems to meet runtime requirements, customer specifications, and application demands
Select pumps, filters, valves, sensors, level systems, and related hardware for reliable fuel system operation

Piping, Fluids & Reliability Engineering

Define and route all fuel piping, tubing, hoses, and mechanical connections throughout the system
Design for vibration resistance, thermal expansion, pressure integrity, and serviceability
Ensure long-term reliability of fluid systems through proper component selection and installation methods
Support troubleshooting of leaks, restrictions, pump issues, and field reliability concerns

Airflow, Thermal & Cooling Performance

Own generator airflow and thermal system performance including intake air, radiator integration, compartment cooling, and exhaust heat management
Design airflow paths to ensure operation at worst-case ambient conditions without derating or overheating
Evaluate fan performance, pressure drop, recirculation risks, and enclosure heat rejection
Support thermal validation through testing, instrumentation, and real-world performance analysis

Exhaust Systems & Emissions Integration

Design exhaust routing, silencers, flex sections, and thermal shielding while maintaining acceptable backpressure limits
Coordinate packaging space and provisions for aftertreatment or emissions equipment where required
Ensure exhaust systems meet thermal, durability, and service access requirements

Manufacturing Integration & Design for Manufacturing

Drive manufacturable designs aligned with welding, fabrication, machining, paint, and final assembly capabilities
Work directly with shop personnel to resolve fit-up, tolerance, and production issues quickly
Improve designs based on production feedback to reduce labor hours, improve quality, and increase repeatability
Support BOM accuracy, drawing quality, revision control, and release discipline

Testing, Validation & Problem Solving

Participate in prototype builds, heat runs, system validation, and production troubleshooting
Diagnose root causes of thermal, fuel, vibration, packaging, or durability issues and implement corrective actions
Support continuous improvement through Root Cause Anal