# Sergio Peña

> Acoustics and vibration engineer with 9+ years of experience. Currently at Meta (Wearables Audio Tuning Team). Previously at Apple (twice, eNoise, mic coexistence, multiple flagship launches), Google (Pixel 9 audio testing), Amazon Lab126 (Alexa audio QA), Northrop Grumman (submarine acoustics, SSN(X), CVN-80), Boeing (777X noise requirements), and Vibro-Acoustic Consultants (environmental noise monitoring). Dual US/EU citizen. Trilingual (English, Spanish, Russian). Based in the San Francisco Bay Area.

## Expertise
- Acoustic simulation and modeling (COMSOL Multiphysics, VA One, Wave6)
- Noise, Vibration, and Harshness (NVH) engineering
- Electronic noise (eNoise) and microphone coexistence analysis
- Digital signal processing (DSP), FFT, spectral analysis
- Machine learning for audio (autoencoders, CNNs, Bayesian testing)
- Environmental noise monitoring and compliance (ISO 9613)
- Psychoacoustics and UX listening studies
- Live sound / FOH engineering and rigging
- Hardware testing (B&K, G.R.A.S., LDV, SoundCheck, oscilloscopes)

## Education
- M.Sc. COMSOL Multiphysics — Universidad de Malaga (Spain)
- M.Sc. Aerospace Science and Technology — Universitat Politecnica de Catalunya (Spain)
- B.Eng. Acoustics & Audio — Universidad Tecnologica de Chile

## Projects
- [GeoNoise](https://geonoise.app): Browser-based environmental noise modeling with ISO 9613-2:2024 propagation, dual CPU/WebGPU compute backends, 1,500+ physics validation tests, binaural HRTF rendering, and Stripe monetization. TypeScript monorepo with 7 packages.
- [SonoTag](https://sonotag.app): Real-time audio tagging console with zero-shot sound event detection using OpenFLAM. Define any sound category via free-form text prompts. Features live spectrogram, YouTube video analysis, and cumulative statistics. React + FastAPI + Python.
- [Cellcraft](https://cellcraft.dev): Browser-based ecosystem simulation with heritable genetics, SIR epidemic modeling, seasonal food cycles, and 4 entity types competing for survival. TypeScript monorepo with pure simulation engine, Canvas 2D rendering, and Pusher multiplayer sync.

## Contact
- Website: https://sergiopena.audio
- LinkedIn: https://www.linkedin.com/in/sergio-pena-a8108684/
- Email: spvaljalo@gmail.com

## Skills
Acoustics, vibration analysis, NVH, FEA, BEM, SEA, COMSOL Multiphysics, MATLAB, Python, TypeScript, PyTorch, digital signal processing, psychoacoustics, room acoustics, noise control, eNoise, mic coexistence, live sound, FOH mixing, WebGPU, ISO 9613, SoundCheck, LMS Test.Lab, Laser Doppler Vibrometry, remote sensing, machine learning for audio