Photonic Design Engineer

Thema Foundries; Oudenaarde; Sur place; EUR 80 000 - 110 000; Plein temps

Avantages offerts par ce poste

Competitive salary

Cutting-edge photonic technologies

Dynamic engineering environment

International workplace culture

Résumé du poste

Thema Foundries is seeking a Senior Photonic Design Engineer to design, simulate, and optimize integrated photonic circuits and lasers for advanced semiconductor applications. You will translate system requirements into robust photonic designs and collaborate across design, process, test, and product teams in a fast-paced foundry environment.

You will work with modelling, verification, and continuous improvement to deliver manufacturable and reliable photonic solutions, while contributing to

Qualifications

• Master’s or PhD in Photonics or related field.
• 5+ years in integrated photonics design.
• Experience with photonic device design and simulation tools (Lumerical, PhotonDesign, COMSOL).
• Understanding of III-V semiconductor lasers and photonic circuits platforms.
• Strong analytical and data-driven approach; team oriented.

Responsabilités

• Design and optimize III-V devices, including SOAs and laser sources.
• Develop misalignment-tolerant coupling structures and mode transformers.
• Model, simulate, and validate device performance optically, electrically, and thermally.
• Develop design rules, PDKs, and compact models for active blocks.
• Analyze characterization data to improve design, fabrication, and yield.
• Support productization and document designs for reliability.

Connaissances

Photonic design

Integrated photonics

Device modeling

Cross-functional collaboration

Formation

Master’s degree in Photonics

PhD in Photonics

Outils

Lumerical

PhotonDesign

COMSOL

IPKISS

GDSFactory

Description du poste

As a Senior Photonic Design Engineer, you are responsible for designing, simulating, and optimizing integrated photonic circuits and lasers for advanced semiconductor applications. Your focus is on translating system requirements into robust photonic designs, collaborating with multidisciplinary teams, and supporting the development of innovative photonic technologies from concept through production. Through modelling, design verification, and continuous improvement, you contribute to high-performance, manufacturable, and reliable photonic solutions.

Your Responsibilities

• Design and optimize III-V devices, including semiconductor optical amplifiers (SOAs) and semiconductor laser sources.
• Design misalignment-tolerant coupling structures and mode transformers that enable efficient light coupling between active devices and photonic waveguides.
• Perform optical, electrical, and thermal modelling and simulation to predict and validate device performance.
• Develop and maintain design rules, process design kits (PDK), and compact models for active building blocks.
• Analyze characterization data to close the loop between design, fabrication, and measured performance, and drive continuous improvement.
• Support productization, documenting designs and contributing to yield and reliability improvements.

Qualifications And Experience

• Master’s degree or PhD in Photonics, Optical Engineering, Electrical Engineering, Physics, or a related field.
• 5+ years experience in integrated photonics design.
• Experience with photonic and semiconductor device design and simulation tools (e.g. Lumerical, PhotonDesign, COMSOL, or equivalent.
• Deep understanding of semiconductor device physics, in particular III-V semiconductor lasers.
• Experience with photonic circuit layout (e.g. IPKISS, GDSFactory).
• Familiarity with photonic integrated circuit platforms.
• Strong analytical and problem-solving skills, combined with a structured, data-driven, and team-oriented mindset.
• Ability to collaborate effectively across design-, process-, test- and product teams in a fast-paced foundry environment.
• Fluent in English; knowledge of Dutch or French is considered an advantage.

What We Offer

• Competitive salary package aligned with Belgian industry standards.
• Opportunity to work with cutting-edge photonic semiconductor technologies.
• A dynamic and innovative engineering environment with strong growth potential.
• International workplace culture with English as the primary language.