Software Engineer · Fintech & AI

Systems that move money.AI that shows its work.

I build banking-grade Java/Spring systems and LLM applications.

ask my agent: it answers from my real work

The journey

01 · The journey

Over 5+ years, one thread: systems people trust.

Six chapters, from banking-grade systems to production AI.

  1. Feb 2020 – Nov 2020

    Java Developer · MobyDigital

    Started at 18, the same year I began Systems Engineering at UTN. Built monolithic Java/Spring MVC apps and REST APIs, learning Hibernate and MySQL from the ground up.

    • Java
    • Spring MVC
    • Hibernate
    • MySQL

  2. Nov 2020 – May 2022

    Backend Developer · MobyDigital (client: ICBC / YOY)

    Joined the team building ICBC's new digital bank from zero: REST microservices in Java/Spring Boot for digital onboarding (accounts, card issuance), Oracle PL/SQL, and shared libraries used across the platform.

    • Java
    • Spring Boot
    • Microservices
    • Oracle PL/SQL

  3. May 2022 – Dec 2022

    Full-Stack Developer · MobyDigital

    Moved into microfrontend architecture (single-spa and Angular), building independently deployable UI modules and a shared component library with the UX/UI team.

    • Angular
    • Microfrontends
    • single-spa
    • TypeScript

  4. May 2022 – Apr 2023

    Backend Mentor · MobyDigital

    Designed the company's Backend Roadmap and mentored 8+ trainees, including candidates from the government's PIL program. 7 of 8 got hired, several now Senior Devs.

    • Mentorship
    • Technical Leadership

  5. Jan 2023 – Present

    Tech Lead · MobyDigital → ICBC Argentina

    Promoted to Tech Lead for YOY's payments and transfers team, later converting to a direct ICBC employee. Maintained 15+ reusable microservices behind transaction flows serving up to 640K logins on peak days. Since Oct 2025, scope expanded into architecture for ICBC's Retail segment: migration roadmaps, C4 diagrams, and ADRs for a platform serving 560K+ monthly active users.

    • Leadership
    • Payments
    • Microservices
    • Architecture
    • ADRs

  6. 2025 – Present

    Independent project · Gastra

    Building a restaurant-recommendation app on the side: hybrid retrieval (pgvector + geolocation + weather) that turns a natural-language query into a ranked result via LLM, hexagonal architecture, local inference via Ollama.

    • RAG
    • LLM
    • Spring AI
    • pgvector
    • Hexagonal Architecture

02 · Selected work

Case studies, not screenshots.

I've worked on a variety of projects, from banking-grade systems to production AI.

  • Product · AI

    Gastra

    A restaurant-recommendation app with hybrid retrieval (vector search, geolocation, live weather) that turns a natural-language query into a ranked list or a single high-confidence match. Hexagonal architecture, local LLM inference, built under Spec-Driven Development.

  • Platform · Banking

    Banking at scale

    Tech Lead for YOY, ICBC's mobile banking app: transaction flows serving up to 640K logins on peak days. Core microservices at scale: fraud prevention (~35M monthly hits), transfers (~13M), bill payments (~4.5M).

  • Engineering · This site

    degiorgi.dev

    This site: a static Next.js shell with a RAG-style console over my own work. Every answer traces back to the source chunk it came from.

03 · Stack

// languages

  • Java
  • Python
  • TypeScript

// frameworks

  • Spring
  • Next.js
  • LangChain
  • LangGraph
  • scikit-learn

// ai tools & models

  • Claude Code
  • Gemini
  • Cursor
  • v0
  • Ollama

// data

  • PostgreSQL
  • MySQL
  • Oracle SQL

// infra & devops

  • Docker
  • Kubernetes
  • OpenShift
  • GitLab
  • GitHub
  • Apache Maven
  • Bruno

// observability

  • Elastic
  • Kibana
  • Dynatrace

// tools change. The discipline doesn't.

Let's talk.

I like talking shop: fintech, distributed systems, AI engineering. If that's you too, reach out.

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