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 Energy is seeking a Senior Mechanical Engineer with deep Computational Fluid Dynamics (CFD) and thermal systems expertise to lead airflow, cooling, and thermal management design across modular energy and infrastructure products. This role will focus heavily on CFD-driven product development for enclosed systems including BESS platforms, modular data centers, power distribution equipment, and power generation systems.

This is not a traditional HVAC or commercial building engineering role. GTI is specifically seeking engineers who have designed cooling systems for enclosed industrial equipment operating under real-world constraints including space limitations, airflow recirculation, heat rejection challenges, manufacturability, vibration, acoustics, and serviceability.

The ideal candidate has experience modeling and optimizing thermal performance for battery systems, power electronics, generator enclosures, industrial skids, switchgear systems, or modular data center infrastructure where thermal performance directly impacts product reliability and operational uptime.

Key Responsibilities

CFD Modeling & Thermal Analysis

Lead CFD analysis and thermal modeling activities for enclosed industrial systems and modular infrastructure products

Develop airflow simulations for BESS enclosures, modular data centers, power electronics, electrical rooms, and integrated equipment platforms

Analyze airflow distribution, pressure drop, temperature gradients, recirculation zones, hot spots, and thermal rejection performance

Validate system performance under worst-case operating and ambient conditions

Optimize thermal architectures to improve cooling efficiency, reliability, acoustics, and manufacturability

Cooling System Design & Airflow Management

Design and integrate cooling systems based on actual equipment heat loads and operational requirements

Develop enclosure airflow strategies including intake/exhaust placement, ducting, baffles, plenums, circulation paths, and pressure balancing

Select and integrate off-the-shelf cooling equipment including HVAC units, heat exchangers, fans, chillers, and thermal management systems

Design for real-world operating environments including dust, humidity, vibration, solar loading, and extreme ambient conditions

Ensure designs meet thermal performance targets without excessive cost, noise, or packaging complexity

Mechanical System Design & Product Development

Support mechanical packaging and enclosure design activities related to thermal system integration

Coordinate thermal system layouts with structural, electrical, and manufacturing constraints

Develop CAD models, engineering drawings, and BOMs supporting thermal and mechanical integration

Ensure designs support manufacturability, serviceability, maintenance access, and production scalability

Testing, Validation & Product Performance

Support prototype testing, heat runs, thermal validation, and system troubleshooting activities

Correlate CFD models with physical testing data and refine simulations accordingly

Analyze field performance data to identify opportunities for thermal improvement

Participate in Root Cause Analysis for overheating, airflow imbalance, thermal failures, or reliability concerns

Cross-Functional Engineering Collaboration

Partner closely with Electrical Engineering, Structural Engineering, Manufacturing Engineering, NPI, and Operations teams

Support customer technical discussions related to cooling performance and thermal design strategy

Work with manufacturing teams to ensure thermal solutions align with fabrication and assembly capabilities

Support supplier selection and technical evaluation of cooling system components and technologies

Design for Manufacturing (DFM) & Continuous Improvement

Drive DFM initiatives focused on scalable thermal system integration and assembly efficiency

Reduce unnecessary complexity while maintaining thermal performance and reliability targets

Standardize cooling architectures, airflow strategies, and thermal design methodologies where appropriate

Contribute to engineering standards, calculation templates, and best practices for CFD and thermal analysis

Technical Leadership

Serve as a subject matter expert for CFD analysis, airflow management, and thermal systems engineering
Mentor junior engineers and support development of internal thermal engineering capability
Influence system-level product architecture and cooling strategies across multiple programs

Requirements

Required Qualifications

Bachelor’s degree in Mechanical Engineering or related engineering discipline

6–12+ years of experience in thermal systems engineering, CFD analysis, or mechanical product development

Strong hands-on experience performing CFD analysis for enclosed industrial systems or thermal-critical products

Experience sizing cooling systems based on actual heat loads and thermal performance requirements

Preferred Qualifications

Experience supporting BESS, modular data centers, power systems, or energy infrastructure products
Experience validating CFD models through physical testing and heat-run correlation
Background in enclosure design, sheet metal, weldments, or industrial packaging
Familiarity with UL requirements, environmental testing, and thermal compliance standards
Experience operating in high-growth manufacturing or engineered-to-order environments
Master’s degree with concentration in thermal sciences, heat transfer, or fluid dynamics preferred
Experience designing cooling systems for battery systems, power electronics, industrial skids, generator enclosures, modular data centers, switchgear, or similar equipment
Strong understanding of airflow management within enclosed systems
Experience with CFD tools such as ANSYS Fluent, Icepak, 6SigmaET, SolidWorks Flow Simulation, or similar platforms
Strong understanding of mechanical integration, manufacturability, and enclosure packaging constraints

Benefits & Perks

GTI offers a competitive compensation and benefits package designed to support employees and their families while providing long-term career growth opportunities within a fast-growing manufacturing organization. Benefits may includes:

Medical, dental, and vision insurance

401(k) with company match (where applicable)

Paid Time Off (PTO) and paid holidays

Sick time in accordance with state and local requirements

Company-paid life insurance and disability coverage

Career advancement opportunities within a rapidly growing organization

Exposure to advanced manufacturing, modular infrastructure, and large-scale industrial projects

Collaborative, fast-paced environment with strong operational and engineering leadership

Employee-focused culture centered on safety, quality, accountability, and continuous improvement

Benefits eligibility and offerings may vary based on position, location, and employment classification.

CFD Engineer

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Key Responsibilities

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