Thermal Systems Engineer

Quilt•Redwood City, CA

3h•$120,000 - $130,000•Onsite

About The Position

Quilt's company mission is to move humanity off of fossil fuel heating. 20% of US global warming emissions come from homes (that's more than cars!). The largest driver of home emissions is burning fossil fuels for heat. To stop climate change, over 80M US homes need to transition from combustion to efficient, electric heat pumps over the coming decades. We believe for this to happen the world needs fantastic products that are easy and desirable to purchase. Today's heat pumps lack great design, make limited use of software, and are difficult and stressful to adopt. We are building a next generation, beautifully designed, smart home heating and cooling system that is 10x better than what is on the market today. Role Quilt is hiring a Thermal Systems Engineer to optimize deployed systems and support development of our next generation systems. This is an excellent opportunity for an early-career engineer to dive deep into real-world applications of a thermal system, gain testing, analysis and system design skills while contributing to products that combat climate change. You will work closely with our thermal and cross-functional teams to conduct thermal testing, analyze system performance, develop thermal models, and support the design of next-generation HVAC products. The ideal candidate has strong thermal engineering fundamentals, is eager to learn, and is excited about applying their skills to real-world climate solutions.

Requirements

Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related field with coursework in thermodynamics, heat transfer, and fluid mechanics
Understanding of fundamental thermal engineering principles including refrigerant cycles
Familiarity with refrigerant system components, key process parameter, and common failure modes
Basic familiarity with data analysis and visualization using Python, MATLAB, or similar tools
Strong problem-solving skills and ability to work through technical challenges methodically
Excellent communication skills and ability to document technical work clearly
Ability to communicate with non-technical stakeholders, such as customer support representatives and HVAC technicians
Self-motivated with eagerness to learn and take on new challenges
Passion for electrification, energy efficiency, and home automation
Strong mission alignment around climate and decarbonization

Nice To Haves

Experience involving thermal testing, temperature measurement, or thermal system design
Hands-on experience with thermal instrumentation (thermocouples, anemometers, manometers, infrared cameras)
Some exposure to thermal modeling or simulation tools (ANSYS, Dymola, GT-Suite, COMSOL, or similar) through coursework or projects
Exposure to manufacturing processes and design for manufacturing principles
Experience with CAD software for thermal design
Familiarity with heat pumps, or HVAC systems

Responsibilities

Analyze system telemetry to root cause field issues and propose improvements to the product
Work cross-functionally to develop continuous monitoring and automated alerting tools based on field data
Perform root cause analysis on units returned from the field
Conduct validation testing of products in development and support regulatory testing
Support thermal analysis and modeling efforts to predict real world performance and validate system health
Analyze test data and present findings to inform design decisions and product improvements
Collaborate with mechanical, electrical, and manufacturing teams to ensure thermal requirements are met throughout the product development cycle