Fiber Optic Design Engineer

StarTech Trieste S.r.l

Strada al Monte d'Oro, TRIESTE(TS)- Telefono/Telephone

Società con Socio Unico: Star Tech Industries S.r.l (art.2363 e art.2497 bis del Codice Civile)

Capitale Sociale/Stock €10.000,00 i.v.- Numero REA:TS-216479

Codice Fiscale/Fiscal Code: Partita I.V.A./VAT Number: IT

OPEN POSITION:

Fiber Optic Design Engineer - 224G PAM4 Optical Modules

Company: StarTech Trieste S.r.l. Location: On-site / Hybrid Department: Engineering Contract Type: Full Time Experience Level: [Mid / Senior] Posting Date: [15/12/2025] Reference Code: 001

1. Position Overview

This role focuses on precision optical design and assembly, including lens positioning, optical isola-tors, and fiber attachment, for high-speed transceiver and optical sub-assembly (OSA) applications.

1. Key Responsibilities

The selected candidate will be responsible for:

• 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 opti-cal assemblies

• Designing and integrating optical isolators, including placement, orientation, and insertion-loss optimization

• Developing robust fiber attachment solutions, including active and passive alignment meth-ods

• 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 proce-dures

StarTech Trieste S.r.l

Strada al Monte d'Oro, TRIESTE(TS)- Telefono/Telephone

Società con Socio Unico: Star Tech Industries S.r.l (art.2363 e art.2497 bis del Codice Civile)

Capitale Sociale/Stock €10.000,00 i.v.- Numero REA:TS-216479

Codice Fiscale/Fiscal Code: Partita I.V.A./VAT Number: IT

1. Required Qualifications

The ideal candidate should have:

• Bachelor's degree (or higher) in Optical Engineering, Physics, Electrical Engineering, or related field

• Strong understanding of fiber-optic communications fundamentals, including PAM4 modula-tion

• 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

1. Preferred Qualifications

Preferred qualifications include:

• 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

1. What We Offer

Brief list of benefits, opportunities, and expected employment terms:

• CCNL Metalmeccanico_Level B/A

• AGS in line with background and benchmark

• Bonus

• Canteen

1. How to Apply

Send your CV and, if available, a cover letter to:

Subject: Application – Fiber Optic Design Engineer

Alternatively, apply via LinkedIn or other official company channels.

1. Equal Opportunity & Privacy Notice

2. StarTech Trieste is an equal opportunity employer. Personal data will be processed in accordance with applicable privacy regulations and GDPR.