PabloMenéndez
Founding engineer at Harbor, building the infrastructure for agent insurance.
- Now
- Founding Engineer, Harbor
- Before
- Product Engineer, Invopop
- Studied
- EPFL, ICAI, RWTH Aachen
- Based in
- San Francisco, from Madrid
I'm a curious guy who likes learning from everyone. I love technology, building things and the intensity of startups, but what fascinates me most is how people think and why they do what they do. That's why San Francisco feels right. It's full of impressive people building the future, and I get to meet them. Honestly, I feel pretty lucky.
- Off the clock
- Cycling, skiing, long dinners and Real Madrid
- Languages
- Spanish, English, German and some French
01
Experience
2026 — now
Founding Engineer · Harbor
Building the infrastructure for agent insurance. Mostly product.
2024 — 2026
Product Engineer · Invopop (YC W23)
Joined as an intern when we were five. Built the Stripe, Hyperline and InvoiceNow (Singapore) apps from scratch and worked on GOBL, Verifactu and the core platform, plus customer calls, sales and hiring.
2022 — 2025
Co-founder · IdEst Advisory
Led an award-winning cellular network optimisation project. Revenue grew more than 4x in 2023.
02
Selected work
Popbot
Master's thesis, Invopop
An AI support agent in Slack. I benchmarked GPT-4.1, GPT-5, RAG, MCP tools and agentic RAG on 360 real support questions for accuracy, latency and cost.
2025
A foundation model for sleep
Idiap Research Institute
A 1D convolutional autoencoder for polysomnography signals. Better reconstructions turned out to mean better sleep classification downstream.
2024
An LLM for EPFL students
EPFL
TinyLlama 1.1B, aligned with DPO and grounded with RAG, answering questions about courses and campus life.
2024
Physiotherapy exercise classification
SMS Lab, ETH Zürich
3D CNNs over four cameras: perfect exercise classification, and 88% accuracy at spotting when an exercise is done wrong.
2023
A maze you play by ear
Healthack 2023
A maze game guided by sound and vibration, built in a weekend with a team of five for a blind player.
2023
Cellular network optimisation
IdEst Advisory
An optimisation model in Pyomo and Gurobi that picks the cheapest base-station sites for a network. It won two Madrid startup awards.
2022
OCR for Endesa
ICAI research institute
Reading complex utility forms with Tesseract and YOLO for Spain's largest energy company. I led the last two months, finishing above 93% accuracy.
2021
03
Writing
04
Education
2023 — 2025
MSc Computer Science · EPFL
Thesis on AI support agents. Minor in Management of Technology.
2022 — 2023
Electrical Engineering, Erasmus · RWTH Aachen
2019 — 2023
BEng Telecommunication Technologies · Comillas ICAI
First of more than 400 students in my year.
Recognition
2024
Nova 111 Student List · Nova Talent
2024
Extraordinary Award for the best grade in the degree · Comillas
2023
Academic Excellence Award · Endesa Foundation
2022
Best Digitisation Project by a Startup · Community of Madrid
2022
Best Project by a Young Social Entrepreneur · Madrid Impacta
2021
Start Build Up, first prize · Start Comillas
2019 — 22
Academic Excellence Scholarship · Madrid Region