Senior Mechanical Engineer, Photonics & Optical Systems

Ciena; Lombardia; On-site; EUR 65,000 - 90,000; Full time

Job summary

Ciena in Italy is seeking a Senior Mechanical Engineer to design mechanical, thermal, and opto‑mechanical solutions for next‑generation photonic modules. You will collaborate with photonics, electrical, and software teams, moving concepts from prototypes into high‑volume production while ensuring robustness and manufacturability.

You will own enclosure design, thermal interfaces, and calibration fixtures, perform thermal simulations, tolerance analyses, and support manufacturing scale‑up with a

Qualifications

• Master’s degree in Mechanical Engineering or related field.
• 3+ years of hands-on mechanical design and thermal simulations.
• Proficiency with 3D CAD and engineering drawings, including GD&T and tolerance stack‑up analysis.
• Strong understanding of heat transfer, thermal expansion, material properties, and structural mechanics.
• Experience using thermal and structural analysis tools, backed by hands‑on testing and validation.
• Familiarity with design for manufacturing (DFM) and assembly.
• Ability to collaborate effectively within multidisciplinary engineering teams.
• Strong written and verbal communication skills in English.

Responsibilities

• Develop mechanical and thermal solutions: design enclosures, thermal interfaces, and mechanical components integrating photonic and electronic hardware.
• Develop thermal management solutions: perform thermal simulations, optimize heat dissipation, temperature stability, and airflow.
• Perform tolerance analysis: evaluate dimensional and geometric tolerance stack‑ups, including thermal effects.
• Work with multidisciplinary team: collaborate with optical, hardware, electrical, and software engineers.
• Improve calibration and test setups: design/calibrate fixtures for accuracy, repeatability, efficiency and scalability.
• Support manufacturing scale‑up: develop manufacturability‑oriented mechanical solutions for transition from prototypes to high‑volume production.

Skills

Multidisciplinary collaboration

English communication

Thermal simulations

GD&T

Tolerance stack‑up analysis

3D CAD

Design for manufacturing (DFM)

Education

Master’s degree in Mechanical Engineering

Tools

3D CAD software

Thermal/structural analysis tools

Job description

Ciena in Italy is seeking a Senior Mechanical Engineer to design mechanical, thermal, and opto‑mechanical solutions for next‑generation photonic modules. You will collaborate with photonics, electrical, and software teams, moving concepts from prototypes into high‑volume production while ensuring robustness and manufacturability.

You will own enclosure design, thermal interfaces, and calibration fixtures, perform thermal simulations, tolerance analyses, and support manufacturing scale‑up with a