Lightium

Lightium is a Swiss startup that offers production-grade photonic foundry services using its proprietary Thin-Film Lithium Niobate (TFLN) platform. Their TFLN technology enables ultra-fast,…

AIData CentersFoundryHigh-Speed CommunicationsPhotonicsPICsTFLNlightium.com

Lightium

Lightium is a Swiss startup that offers production-grade photonic foundry services using its proprietary Thin-Film Lithium Niobate (TFLN) platform. Their TFLN technology enables ultra-fast,…

AIData CentersFoundryHigh-Speed CommunicationsPhotonicsPICsTFLNlightium.com

HQSchlieren, CH

Team Size21

Open Jobs3

Total Funding$10M

Latest Fundraiselast year

TL;DR

Headquarters: Zürich, Switzerland

Core tech: Thin‑Film Lithium Niobate (TFLN) photonic integrated circuits

Product: Production‑grade photonic foundry services on 200mm wafers

Recent funding: $7M seed (announced Sep 2024)

Company Overview

Problem Domain

Reducing latency, power and industrialization risk for high‑speed optical interconnects in data centers and related markets.

Founded

2023

Industry

Semiconductor Manufacturing

Funding Track Record

Seed- 2024-09-18

$7,000,000

Announced in company press materials as seed financing to scale the TFLN foundry and product development.

Grant/Award- 2025-02-05

CHF 150,000

Award from Venture Kick program (final stage).

Investor Signal

“Participation from venture investors (Vsquared Ventures, Lakestar) and support via Venture Kick”

Founders

What we do

Join the Team

Photonic Design and Layout Engineer

HybridZürich Metropolitan Area, CH

Hybrid • Zürich Metropolitan Area, CH

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About the Company

Are you passionate about pushing the boundaries of photonic integrated circuit (PIC) technology? Lightium, a leading-edge photonics startup, is looking for a skilled Photonic Design R&D Engineer to drive the development of new layout and design methodologies for our innovative thin-film lithium niobate (TFLN) platform. This role offers a unique opportunity to contribute to the next generation of photonics solutions while collaborating with top academic institutions

**.

About the Ro**

As a Photonic Design and Layout Engineer, you will define, implement and execute the wafer-level and block-level designs and floor-planning of our internal and customer designs in our TFLN-based PIC platform. Your contributions will be pivotal in continuing the innovation at the design level using state-of-the-art software packages, bringing our cutting-edge photonic technologies from concept to mass producti

**on.

Responsibili**

**cape.

What Our Ideal Candidate**

**antage.

What**

We Offer

A unique opportunity to lead a cutting-edge manufacturing initiative in the rapidly growing field of photonics. A collaborative and innovative work environment where your contributions will shape the future of telecommunications, datacom, and beyond. Competitive compensation and benefits package, including an employee stock option plan (ESOP) which reflects your experience and expertise. Home office possibility, generous vacation, full salary insurance under the Pillar 2 pension, and support of fair/conference attendance and continuing education. Become a key player in an early-phase startup and join a young, motivated, and energetic team. You will have the unique opportunity to create, grow, and develop your professional skills at a f

**ast pace.

Equal Op**

portunity

We celebrate diversity and are committed to creating an inclusive environment for all employees. We'd love to hear from you if you're passionate about building new tech from the ground up and thrive in a collaborative and result-driven e

nvironment.

Startup jobs. A lot of them.

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**ties

Techn** ical: GDS mask generation, floor-planning and block-level design of cutting-edge photonic components for internal and external stakehol

ders.De sign: Translating block-level specifications into photonic designs together with our RF and optical simulation engin

eers.Simula tion: Supporting Lightium’s simulation activities by contributing to optical and RF simulations using state-of-the-arts simulation environm

ents.PDK Develop ment: Supporting Lightium’s PDK development by providing block-level functional models and statistical models involving fabrication and process tolera

nces.Collabora tion: Work closely with the R&D teams from design, processing, fabrication to optical testing and characterization, contributing to cross-functional projects to advance our PIC technolo

gies.Documentation and Repor ting: Maintain thorough documentation of design data and report findings, as well as implement work instructions and scripts for mask genera

tion.Innova tion: Stay up-to-date on the latest advancements in photonics, incorporating new metrology techniques and technologies into our R&D lands

**Brings

Educational Backg** round: A degree (MSc or PhD) in Photonics, Physics, Electrical Engineering, Communications, Material Sciences or a related

field.Expe rience: First work experience in photonic design at an industrial level. Prior experience with integrated photonics design, such as TFLN, silicon photonics, SiN, InP or related photonics platforms are

a plus.Technical Skills: Strong proficiency in GDS mask generation, optical simulations, RF / antenna simulations, design-rule-check (DRC), PDK development and improvement. Prior experience with optical proximity correction (OPC) is

a plus.Organization & Documen tation: Strong organizational skills to plan your work schedule between multiple projects, clean documentation of design data, following standard working procedures, and use best practices to maintain confident

iality.Collabo ration: Excellent communication skills and the ability to work effectively in a multidisciplinar

y team.Adapta bility: The ability to thrive in a fast-paced startup environment, demonstrating flexibility and resilience in the face of

change.Language S kills: Fluency in English is required. Knowledge of German or French is an adv