01/26/2026 updated
100 % available
Java Backend Engineer (Freelance) | Spring Boot, Quarkus, Kafka | Background in Kubernetes & Cloud
Milan, Italy
Only remote
Bachelor of Science, Computer EngineeringAbout me
Hi! I’m a Freelance Software Engineer specializing in the Java ecosystem (Spring Boot, Quarkus). My background is a mix of infrastructure work (I started my career working with Microservices and Kubernetes) and product development (managing logic-heavy accounting software).
Java (Programming Language)AccountingApplication Programming Interfaces (APIs)Amazon Web ServicesAmazon S3ArchitectureAutomationBash ShellCloud ComputingCloud EngineeringSystem ConfigurationContinuous IntegrationData QualityLinuxDevOps
I focus on backend development, but coming from a DevOps-oriented consultancy, I am also comfortable navigating the operational side (Docker, logs, CI pipelines) when needed.
How I can help:
• Java Development: I write maintainable code and have experience managing complex accounting logic and data consistency.
• Architecture: Hands-on experience implementing Event-Driven systems using Apache Kafka.
• Infrastructure: While I focus on code today, I have a solid background in Kubernetes and AWS from my previous experience. I can dockerize apps and understand infrastructure constraints.
? Tech Stack:
• Core Expertise: Java, Spring Boot, Quarkus, SQL, Apache Kafka.
• Infrastructure: Kubernetes, AWS, Docker, Terraform, Jenkins/GitLab.
• Additional Exposure: Redis, React, TypeScript.
Experience
Professional experience0 - 5 years
Freelancer since2026
Languages
GermanBasic knowledgeEnglishFluentItalianNative speaker
Project history
● Led development of a multi-module Quarkus application for accounting processing.
● Refactored services backed by Dapr and Redis, reducing average API latency by 20%.
● Defined and enforced SonarQube quality gates within GitLab CI pipelines.
● Reduced Docker images size by 50% by using Alpine and multi-stage builds
● Developed and maintained distributed event-oriented Spring Boot applications with Kafka, processing millions of events per day.
● Analyzed and created PostgreSQL indexes, resulting in an approximately 30% decrease in response time for critical reporting queries.
● Orchestrated hundreds of containerized applications using Kubernetes with Helm.
● Automated infrastructure provisioning and management using Terraform.
● Created scripts and configured Linux systems with performance monitoring.
● Integrated Jenkins pipelines for CI/CD, enforcing code quality gates.
Fixed-term engineering internship completed during my Bachelor's degree.
● Maintained a web application stack consisting of a React frontend, Node.js backend, and MySQL database.