Mechanical Engineer – Diesel Engines

About the role

Addvolt is seeking a Mechanical Engineer specialized in diesel engines to join its Systems & Application team in Matosinhos. You will support the mechanical development, integration and validation of diesel‑engine power sources and hybrid architectures for transport refrigeration applications.

Key responsibilities

• Define mechanical and thermal requirements for diesel engines, including mounting, cooling, air intake, exhaust, fuel, lubrication and service interfaces.
• Develop and review mechanical layouts, brackets, interfaces and installation concepts for engines, generators and related components.
• Assess engine and power‑generation performance, fuel consumption, efficiency, durability and thermal behaviour using test and field data.
• Collaborate with systems, electrical and controls engineering teams to define integrated power‑train architectures and operating strategies.
• Lead or support root‑cause analysis for engine, generator, mechanical integration, vibration, thermal or durability issues.
• Perform mechanical calculations, tolerance analysis, structural assessments and design‑verification activities.
• Support supplier technical reviews, prototype builds, design releases and engineering‑change processes.

Required profile

• Master’s degree in Mechanical, Automotive, Energy Engineering or related field.
• 3–5+ years of experience in diesel‑engine integration, powertrain engineering, rotating machinery or related fields.
• Strong knowledge of internal‑combustion engines and associated mechanical, thermal and auxiliary systems.
• Fluent English, written and spoken.

Required skills

• Diesel‑engine integration and power‑generation concepts.
• Mechanical design and 3D CAD (Creo preferred).
• Engine performance mapping and fuel‑consumption analysis.
• Cooling‑package design and thermal management.
• Mechanical calculations, tolerance and structural analysis.
• Root‑cause analysis, FMEA and reliability engineering.
• PLM and configuration‑management tools (e.g., Windchill).

What we offer

• Competitive salary range €28,000–€56,000 per year.
• Flexible work hours and onsite work in Matosinhos.
• Opportunities for professional development and workshops with industry partners.
• Impactful work contributing to greener, quieter transport solutions.