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Jerónimo Mendes

Jerónimo Mendes

Machine Learning Engineer

Porto, PT
Portuguese, English

Background


About

About

Machine Learning Engineer specializing in ML infrastructure and operations for renewable energy forecasting. Building production systems that help asset owners optimize power trading decisions.

Work Experience

Work Experience

  • Machine Learning EngineerJungle AI (Toucan)

    Sep, 2023 - Present

    Lead ML infrastructure and operations for Toucan, a weather-to-power forecasting API serving renewable energy asset owners.

    • Built end-to-end power forecasting inference system from scratch, including model deployment, prediction delivery pipelines, and customer-facing APIs

    • Leading complex model migration project transitioning customers from legacy monolithic models to new granular architecture with per-asset models

    • Designed and implemented parallelized training workflows using Argo Workflows and SkyPilot for cloud-based model training at scale

    • Built ML infrastructure including model registry and feature pipelines

    • Developed detection system for extracting value from multiple data sources with scheduled data processing workflows

  • Software Engineer (Part-Time)Jungle AI (Toucan)

    Oct, 2022 - Sep, 202311 months

    Main maintainer of Toucan, working alongside R&D to deliver power forecasts reliably.

    • Designed and implemented custom authentication system supporting OAuth2 and API keys, used across multiple backend services

    • Built custom ML model registry and ML service architecture

    • Responsible for authentication middleware used in multiple backends

  • Software Engineer InternJungle AI

    Jul, 2022 - Sep, 20223 months

    Built notification delivery system end-to-end.

    • Developed notification system using FastAPI, Vue.js, PostgreSQL, and Docker

    • Implemented job queues using Python Redis Queue and Redis

Projects Experience

Projects Experience

  • Arquimedia, HackerSchool @ Instituto Superior Técnico

    Jan, 2021 - Nov, 20221 year 10 months

    Open-source Duolingo-style education platform helping Portuguese high school students prepare for national exams

    • Led team of 10 contributors at HackerSchool (IST student group)

    • Main designer and developer

    • Reached 100 peak concurrent users

    • Built with Django, React, PostgreSQL, and Docker

Skills

Skills

  • ML Infrastructure & Operations

    MLflow

    SkyPilot

    Argo Workflows

  • Backend Development

    Python

    FastAPI

    Django

    Docker

    Kubernetes

    PostgreSQL

    TimescaleDB

    Redis

    S3

    Sentry

    Pydantic

  • Data Engineering

    Pandas

    Polars

    Ray

    Timeseries Data

Education

Education

  • Computer Science and Engineering, Bachelor's Degree, Instituto Superior Técnico

    Sep, 2020 - Sep, 2023

    Machine Learning

    Artificial Intelligence

    Data Structures and Algorithms

    Distributed Systems

    Databases

Interests

Interests

  • Climate Tech & Renewable Energy

    Climate ChangeEducationSustainability
  • Documentary Photography