Engineer, Thermal

Molex; Bengaluru; On-site; INR 1,500,000 - 2,300,000; Full time

Job summary

Molex is seeking a Thermal Engineer/Senior Thermal Engineer to join the Multiphysics Simulation Group in GES. You will develop thermal and CFD models for electronics cooling across data centers, EVs, and medical devices, driving design decisions with predictive simulations.

The role emphasizes mentoring, advancing simulation methodologies, and leveraging AI-enhanced engineering to improve product reliability and performance.

Qualifications

• Bachelor's degree in Mechanical Engineering, Thermal Engineering, Aerospace Engineering, or related field.
• 3-6 years of thermal simulation experience for Engineer level, or 6-10 years for Senior Engineer level.
• Strong understanding of heat transfer fundamentals including conduction, convection, radiation, and conjugate heat transfer.
• Working knowledge of fluid mechanics, turbulence models, and numerical simulation principles.
• Hands-on experience with at least one thermal or CFD software platform such as Ansys Fluent, Icepak, STAR-CCM+, Flotherm, or OpenFOAM.
• Experience performing thermal analysis, simulation validation, correlation studies, and engineering interpretation of results.
• Ability to perform analytical calculations and apply engineering judgment to validate simulation outcomes.
• Strong communication and collaboration skills with cross-functional engineering teams.

Responsibilities

• Develop and execute thermal and CFD simulations for advanced electronic products, cooling systems, and high-power applications.
• Drive engineering decisions by translating complex thermal analysis results into actionable design recommendations.
• Partner with global product, testing, and system engineering teams to improve thermal performance and product reliability.
• Validate simulation models through analytical calculations, testing correlation, and engineering judgment.
• Support development of liquid cooling solutions, electronics cooling technologies, and next-generation thermal architectures.
• Contribute to VPQ strategy by improving predictive simulation capabilities.
• Establish and enhance simulation methodologies, best practices, and engineering standards.
• Mentor junior engineers and contribute to growth of technical capabilities.
• Leverage digital twins and AI-assisted engineering approaches to advance predictive engineering initiatives.
• Identify thermal risks early in product development and recommend practical, physics-based solutions.

Skills

Thermal modeling

CFD simulation

Heat transfer

Conjugate heat transfer

Python/MATLAB scripting

Data center cooling

Team collaboration

Education

Bachelor's degree in Mechanical/Thermal/Aerospace Engineering

Master's degree

Tools

Ansys Fluent

Icepak

STAR-CCM+

Flotherm

OpenFOAM

Job description

Your Job

Molex is seeking a Thermal Engineer / Senior Thermal Engineer to join the Multiphysics Simulation Group within Global Engineering Services (GES). In this role, you will apply deep thermal and fluid physics expertise to solve complex electronics cooling challenges across AI data centers, high-power interconnect systems, EV applications, medical devices, and industrial technologies. This position is ideal for engineers who combine strong analytical fundamentals with a passion for predictive engineering, simulation excellence, and technology innovation.

Our Team

The Multiphysics Simulation Group is part of Molex's Predictive Engineering organization within Global Engineering Services (GES). The team serves as the simulation and virtual engineering backbone for Molex globally, enabling data-driven product development through advanced modeling, digital engineering, and virtual qualification. Our engineers collaborate across business units to solve critical thermal, mechanical, and multiphysics challenges that influence product performance, reliability, and innovation.

What You Will Do

• Develop and execute thermal and CFD simulations for advanced electronic products, cooling systems, and high-power applications.


• Drive engineering decisions by translating complex thermal analysis results into actionable design recommendations.


• Partner with global product, testing, and system engineering teams to improve thermal performance and product reliability.


• Validate simulation models through analytical calculations, testing correlation, and engineering judgment.


• Support development of liquid cooling solutions, electronics cooling technologies, and next-generation thermal architectures.


• Contribute to the organization's Virtual Product Qualification (VPQ) strategy by improving predictive simulation capabilities.


• Establish and enhance simulation methodologies, best practices, and engineering standards.


• Mentor junior engineers and contribute to the growth of technical capabilities within the team.


• Leverage emerging technologies, including digital twins and AI-assisted engineering approaches, to advance predictive engineering initiatives.


• Identify thermal risks early in product development and recommend practical, physics-based solutions.

Who You Are (Basic Qualifications)

• Bachelor's degree in Mechanical Engineering, Thermal Engineering, Aerospace Engineering, or a related engineering discipline.


• 3-6 years of thermal simulation experience for Engineer level, or 6-10 years for Senior Engineer level.


• Strong understanding of heat transfer fundamentals including conduction, convection, radiation, and conjugate heat transfer.


• Working knowledge of fluid mechanics, turbulence models, and numerical simulation principles.


• Hands-on experience with at least one thermal or CFD software platform such as Ansys Fluent, Icepak, STAR-CCM+, Flotherm, or OpenFOAM.


• Experience performing thermal analysis, simulation validation, correlation studies, and engineering interpretation of results.


• Ability to perform analytical calculations and apply engineering judgment to validate simulation outcomes.


• Strong communication and collaboration skills with cross-functional engineering teams.

What Will Put You Ahead

• Master's degree (M.Tech/M.E./MS) in Thermal, Mechanical, Aerospace, or a related engineering discipline.


• Experience with electronics cooling, thermal characterization, heat sinks, thermal interface materials, and junction temperature prediction.


• Knowledge of liquid cooling systems including cold plates, manifolds, microchannels, and flow optimization.


• Exposure to data center thermal management, server cooling, high-speed connectivity products, or optical networking applications.


• Experience supporting EV, high-power connector, power distribution, or industrial thermal applications.


• Programming or automation experience using Python, MATLAB, or simulation scripting tools.


• Familiarity with thermal optimization, surrogate modeling, digital twins, or AI/ML-based engineering methods.


• Experience working with industry standards such as ASHRAE, JEDEC, or OCP.

At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.

Who We Are

Molex is a leading global electronics company and a Koch company, enabling innovation through advanced connectivity and technology solutions. Our products support industries including data communications, automotive, medical, industrial automation, aerospace, defense, and consumer electronics.

At Koch, employees are empowered to do what they do best to make life better. Through our Principle-Based Management™ philosophy, we create an environment where individuals are encouraged to challenge assumptions, create value, develop capabilities, and pursue continuous growth.

Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results.

Molex is an equal opportunity employer. We believe diverse perspectives make us stronger.