I design and modernize critical Java applications.

Lead Java Developer · Backend & Full Stack, with more than 15 years of experience in finance and the public sector. I improve applications that run in production and I design distributed architectures, with clean and tested code.

  • 15+ years
  • Java
  • Spring Boot
  • Kafka
  • Microservices
  • AWS
Photo of Aymen Jamaaoui

How I work

High standards, every day

In a bank or a stock exchange, an error in production is seen at once. I learned to work with this constraint: test before delivery, migrate without stopping the service, and leave code that others can take over. I apply this rigor to every project, whatever its size.

Where I worked

Environments where reliability matters

Euronext European stock exchange operator
Société Générale CIB Corporate and investment bank
Bibliothèque nationale de France Heritage and public service
BNP Paribas Securities Services Securities services and settlement

Certifications

Skills you can check

Each badge links to its official verification page.

Skills

My toolbox

The technologies I use every day.

Languages

  • Java
  • TypeScript
  • Shell
  • Python
  • Groovy

Backend

  • Spring Boot
  • Kafka
  • REST
  • SOAP
  • GraphQL
  • WebSockets

Frontend

  • Angular
  • PrimeNG
  • React

Cloud & Infra

  • Docker
  • Cloud
  • Kubernetes
  • Jenkins
  • Ansible
  • AWS

Data

  • PostgreSQL
  • Oracle
  • MySQL
  • MongoDB
  • Redshift

AI & agents

  • Claude Code
  • LLM
  • RAG
  • MCP
  • function calling

Contact me

A question, a project, an idea?