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jesuserr/README.md

💫 Hi there 👋

I'm an electrical engineer turned software developer. After 18 years in the product certification industry, I pivoted to follow my passion for software and joined 42 Barcelona in January 2023, completing the common core curriculum in July 2024.

Today I work as a Software Developer at One Hub Energy, a Barcelona-based company specialised in renewables, battery energy storage (BESS) and grid flexibility. In parallel, I keep sharpening my low-level skills through the outer core projects of the 42 curriculum.

LinkedIn Profile * Email * 42 Profile

⚡ What I'm working on at One Hub Energy

  • Grid capacity data platform: containerised pipeline that ingests, normalises and versions grid access-capacity data published by Spanish TSO/DSOs, stored as time series and exposed through an API and an interactive map.
    • Python ingestors and scrapers (ArcGIS REST, Excel, web sources), scheduled workers and change detection
    • PostgreSQL + TimescaleDB, FastAPI, React + Vite, AWS S3, Docker
  • OneDev platform (Odoo 19): internal platform for renewable project development, including GIS layers served via GeoServer and a reproducible Docker dev environment shared by the team.

💻 Tech Stack

C C++ Python JavaScript React FastAPI Django Odoo PostgreSQL Docker AWS Linux Arduino x86-64 Assembly

🎓 42 Barcelona highlights

  • Systems & networking: minishell, ft_irc, ft_nmap, ft_traceroute, ft_ping, ft_malcolm
  • Low level: malloc, libasm, ft_nm, ft_ls, ft_linux
  • Security & crypto: ft_ssl (MD5/SHA, DES, RSA), snow_crash, rainfall, darkly
  • Algorithms & math: n_puzzle (A*), ft_linear_regression, computorv1
  • Web & infra: ft_transcendence, inception
Jesus Serrano's GitHub stats Top languages

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  1. 42Cursus 42Cursus Public

    List of projects developed during Common Core (Jan 10, 2023 - Jul 22, 2024)

  2. 42Cursus_Outer_Core 42Cursus_Outer_Core Public

    List of projects developed during Outer Core (Jul 22, 2024 - )

    1

  3. 42Cursus_fdf_SDL2 42Cursus_fdf_SDL2 Public

    3D wireframe renderer for elevation maps. SDL2 port of the 42 school FDF project. Features multiple projections, real-time transformations, and interactive controls.

    C

  4. 42Cursus_lem_ipc 42Cursus_lem_ipc Public

    Multiplayer battle game built on System V IPC: the board lives in shared memory guarded by semaphores, teams coordinate through message queues — all with no threads and no forks.

    C

  5. 42Cursus_ft_nmap 42Cursus_ft_nmap Public

    nmap-style port scanner in C: SYN, NULL, FIN, XMAS, ACK and UDP scans crafted from raw sockets and analysed with libpcap, running up to 250 parallel threads. Extras: reverse DNS, geolocation, trace…

    C 1

  6. 42Cursus_ft_ssl_rsa 42Cursus_ft_ssl_rsa Public

    RSA implemented from scratch in pure C: key generation with Miller-Rabin primality testing, modular exponentiation for encryption and decryption, and key cracking — no external crypto libraries.

    C