Welcome! I'm Aitor.

But here I go by

PIC-asso

because chip layout can sometimes become art.

The Input Port

I design photonic integrated circuits — miniaturised optical systems etched onto silicon chips smaller than your thumbnail.

My journey started in telecommunications engineering, wound through a PhD at UPV on programmable photonic processors, and has taken me through industry roles spanning automated layout, AI-assisted design tools, and foundry tapeouts with some of the world's leading fabs.

Have you heard of Ikigai? It's a Japanese concept for one's "reason for being" — the sweet spot between what you love, what you're good at, what the world needs, and what you can be paid for. I'm still finding mine, but experience has given me some clear signposts:

  • I thrive when surrounded by people who are genuinely excited about what they build.
  • I learn something new every single day (related to my profession or not!)
  • I love sharing knowledge. Teaching a concept until it clicks is its own reward.

All of these, without missing the most important thing to achieve happiness: when personal life and work are in honest balance.

Phase Shifts

Industry

PIC Design Engineer

Rotonium
Mar 2026 – Present · Padova, Italy

Placeholder — details coming soon.

Axiomatic_AI
Apr 2025 – Oct 2025 · Castelldefels, Spain

Project Lead

Jul 2025 – Oct 2025

Led the successful launch of PIC Designer, the company's first photonic integrated circuit design product. Collaborated with AI and software engineering teams (6 people, remote), defined the product roadmap alongside business development, and coordinated alpha and beta user-testing sessions. Prepared technical presentations delivered at international conferences and handled technical reporting to grant administrations.

Photonics Domain Expert

Apr 2025 – Oct 2025

Developed a comprehensive parametric circuit library of filter architectures using GDSFactory and SAX for the Cornerstone PDK, enabling integration with AI-driven photonic design tools. Also built a circuit layout benchmark to assess tool performance.

Photonic Engineer

Alcyon Photonics
May 2024 – Mar 2025 · Madrid, Spain

Developed a comprehensive testing pipeline for design layouts. Contributed to circuit tapeouts with three top-10 worldwide foundries, designing subsystems and collaborating on mask layout. Utilised OptoCompiler, IPKISS, and Lumerical for advanced photonic circuit design, simulation, and optimisation. Represented the company at industry events.

Innovation Engineer

Kenmei Technologies
May 2023 – May 2024 · Valencia, Spain

Led design of a Looker Studio dashboard monitoring radio-network energy consumption metrics using PySpark, BigQuery, PostgreSQL, and Apache Airflow. Contributed to a generative AI assistant on Microsoft Teams which retrieved information from internal databases. Simulated 5G object-localisation setups using MQTT and Pandas, and helped develop a geolocation algorithm using PostGIS.

Research Intern

Universidad Politécnica de Madrid
Oct 2015 – May 2016 · Madrid, Spain

Collaboration scholarship at the Department of Signals, Systems and Radiocommunication. Developed C++ software to autonomously pilot a DJI Phantom drone to land on specified landmarks identified via the OpenCV library.

Intern

Telefónica
Sep 2014 – Aug 2015 · Madrid, Spain

Analysed throughput and power consumption of mobile devices across multiple countries using ANOVA tests. Facilitated bi-annual vendor meetings and compiled reports. Conducted laboratory experiments to evaluate and categorise device performance by vendor.

Academia

PhD Researcher

Universitat Politècnica de València (UPV)
Jan 2018 – Apr 2023 · Valencia, Spain

Member of the Photonics Research Labs (PRL) group at ITEAM. Research covered automated synthesis of optical filters on photonic waveguide meshes using machine learning and gradient-based optimisation. Published in Nature Communications (2020, 2024), Optics Express (2020), and Journal of Lightwave Technology (2022). Presented at CLEO 2020 and IEEE Photonics Conference 2022. Contributed to the layout of a general-purpose photonic processor — the foundation for a university start-up's first commercial product.

Professor · Laboratory Course

Universidad Europea de Valencia
Sep 2022 – Dec 2022 · Valencia, Spain

Sole instructor for a laboratory course for 25 second-year Physics students, covering mechanics, thermodynamics, and optics. Guided practical measurements, oversaw data collection, assisted with written reports, and provided mentorship — resulting in highly positive student feedback.

Constructive Interference

A sample of my work — from raw GDSII geometry to electromagnetic field plots and the Python that generates them.

My PDK

The building blocks of my work — from simulation to tape-out.

Foundation

Python The backbone of my workflow — parametric scripting, automation, and data analysis across every project I touch.

Layout & Design

GDSFactory Automated layout routing, parametric component generation, and DRC-clean tapeout exports — all from Python.
KLayout Layout inspection, DRC rule checking, and final mask preparation before handing off to the foundry.
Luceda IPKISS Circuit-level photonic design — from functional schematic to foundry-ready layout using technology-aware PDKs.

Simulation

Lumerical High-fidelity 3D FDTD and MODE simulations for component characterisation and optical mode analysis.
Meep Open-source FDTD for research-grade photonic device design, topology optimisation, and adjoint-method gradient computation.
Tidy3D Cloud-accelerated FDTD for fast parametric sweeps and large-scale structures — GPU speed, Python interface.
Femwell Finite-element waveguide mode solver for cross-section analysis, effective index, and group velocity extraction.

Off-Chip

Life outside the fab — because the best engineers bring the whole person to work.

🗣️

Language Learning

Currently pushing my Polish and fascinated by Slavic morphology — it's a different kind of pattern recognition. German is next on the list.

🍳

Cooking

Firmly in the "cooking is applied chemistry" camp. Sourdough, slow-fermented stocks, the occasional over-ambitious Spanish recipe. Reproducible results not guaranteed.

🎭

Writing

Because work reports are not always the most enjoyable tasks to handle, I became the proud author of a newly registered theater play. Click to learn more!

View more →
🌍

Travel & Culture

Navigating life between different cultures has given me a genuine appreciation for diverse professional environments and unique ways of framing problems.

Phase Match With Me

Whether you want to talk photonics, swap ideas, ask a question that feels too basic (there are none) or answer one from myself, or just grab a virtual coffee — my calendar is open. I'm equally happy to give and to receive advice :)

Book a 15-Min Slot

Opens Google Calendar — pick any free slot, no agenda required (but please, do not use it for spam!)