Thermal Systems Engineer Sr

ALTEN Mexico, is a leading engineering company that specializes in providing innovative solutions for engineering, technology, and product development projects. We work directly with different industries including Automotive, Energy, Aeronautics, Banking & Insurance, Telecom & Multimedia, and Rail; offering services ranging from project design development to test/validation, programming, implementation, and manufacturing.
ALTEN Mexico as a subsidiary of the ALTEN Group. Currently working with international clients, and we are looking for a Thermal Systems Engineer who will contribute to the development of an Iron Air Battery, a large-scale energy storage solution, as a system-level specialist for cold-weather, heater, pump, insulation, and thermal-performance issues.
📍 Location: Remote
🕒 Experience Level: 5+ years
🌐 English: B2–C1
Key Responsibilities
Assess cold-weather operating and storage requirements, snow/ice effects, and self-draining concepts.
Evaluate heater and pump alternatives, thermal performance, duty cycles, isolation needs, and failure modes.
Coordinate thermal analysis with CFD, mechanical, electrical, materials, and validation teams.
Define thermal verification methods and review empirical test results supplied by the customer or vendor.
Develop recommendations balancing performance, cost, manufacturability, and revalidation impact.
Requirements
Must‑Have Qualifications
Bachelor’s or advanced degree in Mechanical Engineering or related field.
5+ years of thermal systems, thermal analysis, HVAC, energy systems, battery systems, or fluid-system engineering experience.
Strong fundamentals in thermal requirements, heat transfer, cold-weather design, freeze protection, heaters, pumps, insulation, and thermal interfaces. Thermodynamics, fluid mechanics, and test correlation.
Steady-state and transient thermal analysis using hand calculations, 1D models, or 3D tools as appropriate.
Experience with heaters, pumps, cold-weather performance, or temperature-controlled products preferred.
English level B2–C1.
Soft Skills
Strong communication and cross‑functional collaboration.
Technical leadership and decision‑making capability.
Problem‑solving and analytical thinking.
Time management and ability to operate under tight deadlines.
Detail‑oriented mindset with strong documentation discipline.
Supplier coordination and negotiation skills.
Continuous improvement and robust design focus.
Benefits
Competitive salary
Benefits above those required by law
Career growth and development plan
Remote work scheme

Work arrangement
Yes