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Marcello Nobili

Marcello Nobili

Independent Software Engineer

Omegna / Miasino, Piedmont, IT
Italian, English, Japanese

Background


About

About

Italian software engineer with 10+ years of experience in mobile (Android, Flutter) and backend development. Since January 2024 I operate as a freelancer under the brand SieloTech, designing Python/FastAPI microservices, integrating LLMs, and delivering production‑ready solutions for startups and clients.

Work Experience

Work Experience

  • Backend Software Engineer (Freelance), Valueize

    Jan, 2025 - Present

    Design and maintain Python + FastAPI microservices deployed via Docker and CI/CD to a cloud VM. Integrate large language models into core workflows, build real‑time APIs, and orchestrate background tasks with Celery. Stack: Redis, PostgreSQL, GitHub Actions.

    • Implemented an LLM‑powered document extraction service that reduced manual processing by 60%

    • Set up automated pipelines (GitHub Actions) for build, test, and deploy, cutting release time from hours to minutes

    • Introduced structured logging and metrics collection improving observability across services

  • Founder & Software Engineer, SieloTech (Freelance Consultancy)

    Jan, 2024 - Present

    Provide mobile and backend development services to SMEs and individual clients. Publish open‑source libraries and maintain personal projects (Furigana API, Matanè).

    • Delivered DataLog, a Flutter + Supabase mobile app for analog photographers (client: Progetto Rinascita)

    • Built a multi‑tenant documentation portal with Next.js and Tailwind for public APIs

    • Mentored junior developers on modern Android architecture (MVVM, Jetpack Compose)

  • Lead Android Engineer, SBS Mobile

    Jan, 2018 - Dec, 20236 years

    Led Android development within a team of nine engineers, delivering consumer and B2B apps for connected hardware devices.

    • Migrated legacy Java fitness app to modern Kotlin, raising Play Store rating by 1+ star

    • Architected FastSkin cutter client from prototype to production, managing full release lifecycle outside Play Store

    • Introduced CI with GitHub Actions and comprehensive test suites (JUnit, Espresso)

Projects Experience

Projects Experience

  • Furigana API, SieloTech

    Mar, 2025 - Present

    REST API that converts Japanese kanji to hiragana; built with FastAPI, deployed on Google Cloud Run.

    • Migrated from Flask prototype to FastAPI, increasing throughput by 40%

    • Automated DevOps pipeline with GitHub Actions and Cloud Build

  • Matanè

    - Present

    Mobile app in development leveraging LLMs to enable immersive Japanese conversation practice.

    • Prototype integrates OpenAI GPT‑4o for context‑aware dialogues

  • Karaoke App (Demo)

    May, 2023 - Present

    Android open‑source showcase of modern Jetpack Compose architecture.

Skills

Skills

  • Programming Languages

    Python

    Kotlin

    Dart

    TypeScript

    Java

    SQL

    Bash

  • Mobile Development

    Android (Jetpack Compose, MVVM)

    Flutter

    iOS (Swift)

  • Backend & DevOps

    FastAPI

    Flask

    Docker

    CI/CD (GitHub Actions)

    Celery

    Redis

    PostgreSQL

    Supabase

    Google Cloud Run

    Firebase

  • AI / LLM Integration

    OpenAI API

    LangChain

    Vector Stores

    Prompt Engineering

Education

Education

  • Computer Science, Bachelor’s (incomplete, 3 exams remaining), Università degli Studi di Milano‑Bicocca

    Oct, 2012 - Jun, 2016

  • Scientific High School Diploma, High School Diploma, Liceo Scientifico P. Gobetti, Omegna

    Sep, 2007 - Jun, 2012

Interests

Interests

  • Japanese culture

  • Fitness

  • Music (piano, guitar)

  • Motors