Sr. Mechanical Engineer at NextPower

NextPower; Valencia; On-site; EUR 70,000 - 95,000; Full time

Job summary

NextPower in Valencia, Spain, is seeking a Sr. Mechanical Engineer on-site for the R&D&I team. You will design the mechanical architecture of inverters and electrical cabinets, optimize packaging, and ensure heat dissipation and regulatory compliance.

Responsibilities include 3D modelling, CFD thermal analysis, FEA structural validation, material selection, and DFMA integration to assure manufacturability and IP ratings. Fluency in Spanish and English is required.

Qualifications

• Bachelor’s degree in Mechanical Engineering.
• 8+ years in mechanical design of capital goods, electrical cabinets, or related fields.
• Fluency in Spanish and English (written and spoken).
• Proficiency in 3D CAD software (SolidWorks, CATIA, Inventor).
• Experience with thermal and structural simulation tools (ANSYS Fluent, SolidWorks Simulation, Autodesk CFD).
• Knowledge of manufacturing processes (sheet metal, casting, plastics, machining).
• Ability to work in multidisciplinary teams and focus on innovation.

Responsibilities

• 3D Modelling and drawings of enclosure, supports, ducts, and busbar mounts.
• Thermal simulation to optimize heat sinks and cooling systems.
• Structural analysis of chassis against transport stresses, earthquakes, impacts, and vibrations.
• Material selection considering cost, weight, corrosion, and dielectric properties.
• Manage tolerances and DFMA to ensure watertight equipment (IP ratings).

Skills

3D CAD design

Thermal simulation

Structural analysis

DFMA

Multidisciplinary teamwork

Education

Bachelor’s in Mechanical Engineering

Master’s in Thermal Simulation or Product Development (desirable)

Tools

SolidWorks

CATIA

Inventor

ANSYS Fluent

SolidWorks Simulation

Autodesk CFD

Job description

Sr. Mechanical Engineer at NextPower in Valencia, VC, ES. This Full time on site position offers great opportunities for career growth.

Job Description: The Sr. Mechanical Engineer specializing in product design joins the R&D&I team to develop the physical architecture, chassis, and cooling systems for inverters and electrical cabinets to be manufactured. Their mission is to ensure the structural integrity of the equipment, optimize space (“packaging”), ensure proper heat dissipation for critical electronic components, and ensure compliance with applicable technical specifications and regulations.

Mission and Main Objective

Develop the three-dimensional mechanical design of the equipment, ensuring that it can be manufactured and assembled. Efficiently manage the dissipation of heat generated by the electronics using advanced cooling systems. Ensure compliance with environmental protection, vibration, and mechanical safety regulations for the product.

Key Functions

• 3D Modelling and Drawings: Design the enclosure, support structures, ventilation ducts, and busbar mounting systems.
• Thermal Simulation (CFD): Perform computational fluid dynamics analyses to optimize heat sinks and cooling systems.
• Structural Analysis (FEA): Validate the mechanical strength of the chassis against transportation stresses, earthquakes, impacts (IK ratings), and vibrations.
• Material Selection: Determine the optimal materials (aluminium, steel, engineering plastics) by considering cost, weight, corrosion, and dielectric properties.
• Tolerance Management and DFMA: Apply design-for-manufacturing-and-assembly (DFMA) methodologies to ensure the equipment’s watertightness (IP ratings).

Profile Requirements

• Education: Bachelor’s degree in Mechanical Engineering. A master’s degree or specialization in Thermal Simulation or Product Development is highly desirable.
• Experience: More than 8 years in mechanical design of capital goods, electrical cabinets, power electronics, or the automotive industry.
• Fluency in Spanish and English, both written and spoken, is required.
• Technical Skills: Mechanical design of industrial electronic equipment. Advanced proficiency in 3D CAD software (SolidWorks, CATIA, Inventor). Actual experience with thermal and structural simulation tools (ANSYS Fluent, SolidWorks Simulation, Autodesk CFD) is desirable. Knowledge of manufacturing processes (sheet metal, casting, plastic injection moulding, machining).
• Soft Skills: Ability to work in multidisciplinary teams (with electrical and software engineers), attention to detail, and a focus on innovation.

About NextPower

At NextPower, we are driving the global energy transition with an integrated clean energy technology platform that combines intelligent structural, electrical, and digital solutions for utility-scale power plants. Our comprehensive portfolio enables faster project delivery, higher performance, and greater reliability, helping our customers capture the full value of solar power. Our talented worldwide teams are redefining how solar power plants are designed, built, and operated every day with smart technology, data-driven insights, and advanced automation. Together, we’re building the foundation for the world’s next generation of clean energy infrastructure. We are NextPower.