Fiber Optic Design Engineer - 224G PAM4 Optical Modules
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Fiber Optic Design Engineer - 224G PAM4 Optical Modules
Position Overview
This role focuses on precision optical design and assembly, including lens positioning, optical isolators, and fiber attachment, for high-speed transceiver and optical sub-assembly (OSA) applications.
Key Responsibilities

Designing and optimizing free-space and fiber-coupled optical paths for 224G PAM4 optical modules
Performing lens selection, positioning, alignment, and tolerance analysis for high-speed optical assemblies
Designing and integrating optical isolators, including placement, orientation, and insertion-loss optimization
Developing robust fiber attachment solutions, including active and passive alignment methods
Supporting optical sub-assembly (OSA) development from concept through prototype and low-volume production
Performing optical simulations and tolerance stack-ups to ensure yield and performance margin
Collaborating with electrical, mechanical, and manufacturing engineers to ensure system-level performance
Supporting optical bring-up, characterization, and debug (IL, RL, PER, extinction ratio, eye performance)
Interfacing with vendors on lenses, isolators, fibers, ferrules, and optical components
Generating and maintaining optical design documentation, drawings, and assembly procedures

Required Qualifications

Bachelor’s degree (or higher) in Optical Engineering, Physics, Electrical Engineering, or related field
Strong understanding of fiber-optic communications fundamentals, including PAM4 modulation
Experience with optical alignment and coupling techniques (free-space and fiber-based)
Hands-on experience with lens positioning and optical tolerancing
Familiarity with optical isolator design and integration
Experience designing or supporting fiber attach processes (active or passive alignment)
Ability to work with tight mechanical and optical tolerances at high data rates

Preferred Qualifications

Experience with 112G/224G PAM4 optical modules (QSFP-DD, OSFP, OSFP-XD, or similar)
Experience with EML and silicon photonics-based transmitters
Familiarity with optical simulation tools (e.g., Zemax, Code V, LightTools, or equivalent)
Experience supporting prototype builds and low-volume production
Knowledge of optical testing and characterization methods

What We Offer

AGS in line with background and benchmark
Bonus
Canteen

How to Apply
Send your CV and, if available, a cover letter to:
Subject: Application – Fiber Optic Design Engineer
Equal Opportunity & Privacy Notice
StarTech Trieste is an equal opportunity employer.
Personal data will be processed in accordance with applicable privacy regulations and GDPR.
Seniority level
Entry level
Employment type
Full-time
Job function
Engineering and Information Technology
Industries
Manufacturing
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