Julen Portu
Senior Python Backend Developer at Politecnico di Milano
San Sebastián, Autonomous Community of the Basque Country, Spain
Summary
👤
Senior🎓
Top SchoolJulen Portu is a Senior Python Backend Developer and Machine Learning Engineer with a PhD in Artificial Intelligence and a decade of experience applying Reinforcement Learning, PINNs and MLOps to industrial problems. He has accelerated RL training and inference—cutting training time by 50% and inference by 10x—through novel surrogate-model frameworks validated in smart grids and HVAC systems, and authored multiple Q1/IEEE publications. Julen bridges research and production: from designing simulators and RL agents (PPO, DQN) to deploying scalable microservice architectures with Docker, AWS and CI/CD, and recently builds autonomous LLM-driven browser agents for web automation. Comfortable leading teams and projects, he has rescued critical client work by optimizing pipelines by >99% and served as Scrum Master on cross-functional initiatives. Based in San Sebastián, he pairs rigorous academic depth with pragmatic engineering, and even brings a classical piano background and early editorial experience to a profile that blends discipline, creativity and systems thinking.
10 years of coding experience
7 years of employment as a software developer
Master of Engineering Telecommunications Engineering, Master of Engineering Telecommunications Engineering at University of NavarraBachillerato Científico técnico, Bachillerato Científico técnico at Colegio San Ignacio de LoyolaFull Stack Web Development Certification Computer Software Engineering, Full Stack Web Development Certification Computer Software Engineering at freeCodeCampGrado profesional Piano solista, Grado profesional Piano solista at Conservatorio Francisco EscuderoDoctor of Philosophy Information Technology, Doctor of Philosophy Information Technology at Politecnico di Milano
Spanish, English, Basque
Github Skills (14)
surveillance7
compressor2
python2
reinforcement-learning1
pytorch1
stable-baselines1
ipywidgets1
jupyter-widget1
streamlit1
jupyter-notebook1
deep-reinforcement-learning1
deep-learning1
jupyter1
data-science1
Programming languages (2)
Github contributions (5)
JulenCestero/pysurveillance
Jan 2020 - Nov 2022
Scripts for technological surveillance, PhD stuff.
Contributions:64 commits, 2 PRs, 41 pushes in 2 years 9 months
surveillancetechnologicalphd
JulenCestero/storehouse
Jan 2022 - Dec 2022
Contributions:109 commits, 4 PRs, 28 pushes in 11 months
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