Photo of Thomas Ferreira de Lima, Ph.D.

Thomas Ferreira de Lima, Ph.D.

Principal Photonic Design Engineer @ Quantum Transistors

French-Brazilian photonics design engineer and researcher, born in 1990. Specializing in quantum computing, with a strong background in photonic computing, AI accelerator hardware, and open-source software development.
Updated: Sep 2024

Work Experience

Quantum Transistors

Principal Photonic Design Engineer

nov 2023 – current
New York, NY, USA

Responsible for the design and testing of Photonic Integrated Circuits a single-chip quantum processor.

NEC Laboratories America

Researcher, Optical Networking & Sensing Dept.

may 2021 – oct 2023
Princeton, NJ, USA

Research arm of NEC Corporation. Worked on research projects spanning photonic computing, distributed artificial intelligence, datacenter optical link sensing and orchestration, and optically-assisted biosensing.

Geekie

Co-founder, Product Manager and Software Engineer

sep 2011 – jan 2012
São Paulo, Brazil

Education technology start-up that provides a personalized learning experience for each student using dynamic content and artificial intelligence algorithms. Today Geekie numbers over 100 employees, reaches five million students and has a governmental contract that delivers access to the platform for all students in public schools.

Groupon

Senior Analyst, then Head of Business Intelligence Department

jan 2011 – sep 2011
Berlin, Germany / São Paulo, Brazil

Led a transformative shift in Groupon's Business Intelligence from 2011, automating the end-to-end sales data process—handling millions of transactions weekly. This automation improved financial and sales reporting, allowing human resources to focus on tailored analysis for other departments. During this time, the company increased revenue by 20% while reducing its sales force by 33%.

F123.org project

Software Engineer and User Experience Consultant

aug 2010 – jan 2011
Curitiba, Brazil

Award-winning NGO project which provides technological solutions for visually-impaired users. I helped develop a cheap and fully functional open-source operating system that required no visual feedback. Hundreds of blind people used a computer for the first time thanks to this OS. Some of them were successfully employed as a result of the project. Mentor: Fernando Botelho

Skills

  • Photonic integrated circuit design (Si and InP) using commercial and opensource simulation and layout software
  • Distributed networks & system automation (servers, microcontrollers, FPGAs, GPIB, SPI, Custom PCB, Ethernet, Linux server configuration & administration)
  • Probing and testing optoelectronic components and photonic integrated circuits
  • Statistical data analysis, optimization, and machine learning
  • Scientific and high-performance programming (Python: PyTorch, NumPy, SciPy, SymPy, Pandas, Jupyter; C++/Boost extensions)
  • Software development (mostly backend, some frontend)
  • Open-source contribution & advanced version control (Git & continuous integration)
  • Grant proposal writing & project management

Education

Princeton University

Ph.D. in Electrical and Computer Engineering

sept 2014 – may 2021
Princeton, USA

Worked as research assistant in the Lightwave Lab (Adviser: Paul Prucnal). My research involved building large-scale photonic circuits on chip that emulate the functionality of neural networks, but working at GHz speed. I was a teaching assistant for four consecutive semesters for the course EPICS (Engineering Projects in Community Service) taught by Prof. Michael Littman, reaching about 100 students.

Ecole Polytechnique

Ingénieur Polytechnicien (B.Sc. & M.Sc. equivalent)

jan 2012 – jul 2014
Paris, France

Physics for Optics and Nanosciences – Class of 2014 (X2011)

Instituto Tecnológico de Aeronáutica

feb 2009 – dec 2010
São Paulo, Brazil

(Unfinished B.Eng.) Class of 2013 – transferred to Polytechnique

Languages

  • Native Portuguese
  • Fluent English
  • Fluent French
  • Basic German

Honors & Awards

  • Eiffel Excellence Scholarship
  • mar 2012 – sept 2014
    French Ministry of Foreign Affairs and International Development
  • Silver medal at the 1st IOAA
  • dec 2007
    International Olympiad on Astronomy and Astrophysics with over 80 students from 21 countries, held in Chiang Mai, Thailand
  • Bronze medal at the 38th IPhO
  • jul 2007
    International Physics Olympiad with over 400 students from 69 countries, held in Isfahan, Iran

Open Source Projects

lightlab

Author and Maintainer

Python-based software for laboratory instrumentation and automation

zeropdk

Author and Maintainer

Pure-python PDK that enables scripted layout of photonic integrated circuits based on klayout.

KLayout

Contributor and Maintainer

High Performance Layout Viewer And Editor

SiEPIC-Tools

Contributor

Package for KLayout to add integrated optics / silicon photonics functionality (waveguides, netlist extraction, circuit simulations, etc).

SiEPIC-EBeam PDK

Contributor

SiEPIC EBeam PDK & Library for KLayout containing common passive silicon photonic devices.