~/developer/portfolio

Liviu .ioNESI

Technical Lead & Senior Full-Stack Engineer. Building the digital backbone of the Automotive and Fintech industries. I specialize in Spring Boot microservices, React frontends, and driving high-velocity, enterprise-grade software delivery through AI-augmented workflows.

package dev.portfolio;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class LegacyBackendApplication {

    public static void main(String[] args) {
        SpringApplication.run(LegacyBackendApplication.class, args);
        System.out.println("Java EE Enterprise Logic Initialized...");
    }
}

Compiling...

02.

Work experience

<Senior Software Developer/>

company="DAT Group"time="Sep 2020 - Mar 2026"type="Automotive Software"location="Remote / Hybrid"size="501-1,000 employees"

Senior full-stack developer on the Costing Applications team behind SilverDAT 3 "calculate", the insurer-recognized standard for vehicle repair-cost calculation. Used industry-wide by workshops, dealers, appraisers, insurers, banks, and manufacturers across 70,000+ vehicle variants.

<Software Developer/>

company="evia solutions GmbH"time="Feb 2016 - Aug 2020"type="IT Services & Consulting"location="On-site"size="51-200 employees"

Developer and consultant at a cross-industry IT system house, delivering custom and standard software across the Banking, Insurance, and enterprise Microsoft domains. Worked in cross-functional Scrum and SAFe teams, from legacy Java EE maintenance to a greenfield microservices migration.

<Junior Software Developer/>

company="PRODYNA AG"time="Nov 2014 - Jan 2016"type="IT Consulting"location="On-site / Travel"size="201-500 employees"

Developer and consultant at an IT consultancy, embedded on-site with a major enterprise client to deliver their portal project end to end — from consulting and design through implementation and testing.

<Internship in Software Development/>

company="Alpine Electronics R&D Europe"time="Sep 2012 - Aug 2013"type="Automotive Electronics"location="On-site"size="1,000+ employees"

System Integration Intern in the OEM Car Infotainment division, developing software modules for the internal "Alpine Test Automation Framework".

03.

Education

<dual study/>

State-Certified Computer Scientist— Technical Systems

institution="Gottlieb-Daimler-Schule 2 - Akademie für Datenverarbeitung (ADV)"

degree="State-Certified Computer Scientist"

year="2011 - 2014"location="Böblingen, Germany"

3-year vocational trainin. Included a one-year practical internship at Alpine Electronics R&D Europe GmbH with the thesis: "Alpine Voltage Curve Editor" (Graded: Excellent).

<master/>

Master— Mathematics Teacher Education

institution="West University of Timișoara (Universitatea de Vest din Timișoara)"

degree="Master"

year="2009 - 2011"location="Timisoara, Romania"

Advanced academic program focusing on complex mathematical models and educational methodologies. The first year of this Master's was completed abroad at the University of Stuttgart via the Erasmus program. Core coursework included: Vectorial Analysis, Advanced Algebra and Geometry, Iterative Methods, Statistical and Probabilistic Methods, and Educational Management Software.

<bachelor/>

Bachelor— Mathematics and Computer Science

institution="West University of Timișoara (Universitatea de Vest din Timișoara)"

degree="Bachelor"

year="2006 - 2009"location="Timisoara, Romania"

Dual-focus curriculum bridging theoretical mathematics with applied computer science and software engineering. Core coursework included: Data Structures, Artificial Intelligence, Database Systems, Computer Networks, Computational Geometry, Logical and Functional Programming, and Mathematical Modeling/Simulation.

<college/>

High School Diploma (Baccalaureate)— Mathematics and Computer Science

institution="National College of Computer Science "Spiru Haret" Suceava"

degree="High School Diploma (Baccalaureate)"

year="2002 - 2006"location="Suceava, Romania"

Intensive Computer Science and Mathematics curriculum.

04.

Projects

<Filmpire Microservices Platform/>

stack=["Java 25", "Spring Boot 3.5", "Spring Cloud", "PostgreSQL", "MongoDB", "Redis", "Spring AI", "gRPC", "REST", "JUnit 5", "Testcontainers", "JaCoCo", "GitHub Actions", "Docker", "Podman", "Kubernetes"]

An end-to-end enterprise microservices platform for movie discovery, managed from idea to delivery-ready product using a GitHub Project Kanban boards (Epics, Stories, Tasks). Eight independent Java 25 / Spring Boot 3.5 services including Spring Cloud (Eureka, API Gateway), backed by a hybrid PostgreSQL/MongoDB strategy and a Redis cache that falls back to the TMDB API. Integrates Spring AI (Whisper/GPT-4) over both REST and gRPC. Built to strict modern standards — record DTOs, constructor injection, virtual threads — and a rigorous test bar (JUnit 5, Testcontainers, 85% JaCoCo coverage) wired into GitHub Actions CI/CD. Deployed using Kubernetes on Minikube

<Defense Asset Manager/>

stack=["React 19", "Vite", "Zustand", "Material UI v9", "MSW", "OpenAPI 3.1", "TypeScript", "Vitest"]

An enterprise-grade React 19 application for asset and personnel management in the defense sector, enforcing a strict Feature-Based (Domain-Driven) architecture to support SAFe delivery across multiple teams. Fully typed contract-first against OpenAPI 3.1 and built on Vite for instant HMR. Uses Zustand with Immer for immutable state, Mock Service Worker for offline REST mocking, and high-contrast Material UI v9 components, with safety-critical UX such as destructive-action confirmations.

<Antigravity IDE Portfolio/>

stack=["Next.js 16", "TypeScript", "Tailwind CSS v4", "React Icons", "Framer Motion", "Geolocation API", "PDF Generation"]

A highly interactive developer portfolio that meticulously recreates the aesthetic of Google's Antigravity IDE — activity bar, file-tree explorer, editor area, live status bar and a working command palette — built on the Next.js 16 App Router (with React Compiler) and lazy-loaded Framer Motion micro-animations. Features automated CV generation to PDF in multiple templates and languages, plus a dynamic contact form that uses the Geolocation API to compute and display the physical distance between visitor and developer.

<Filmpire Frontend/>

stack=["React 17", "Material-UI", "Redux Toolkit", "Alan AI"]

A modern, interactive movie-discovery application in React 17 and Redux Toolkit, serving as the dedicated frontend client for the 8-service Filmpire microservices backend. Integrates the TMDB API for browsing categories and managing favorites, and its defining feature is an Alan AI SDK integration providing a fully conversational voice interface. Quality enforced with Jest / React Testing Library and ESLint (Airbnb).

<DevOps Toolchain Showcase/>

stack=["Jenkins", "JFrog Artifactory", "Podman", "Gradle", "Java 17"]

A fully containerized, declarative CI/CD toolchain demonstrating enterprise DevOps practices, orchestrated via Podman Compose. A customized Jenkins server uses Docker-outside-of-Docker (DooD) to build and push application images through a multi-stage Jenkinsfile. Automates JaCoCo coverage reporting and artifact publishing to JFrog Artifactory, and uses custom Bash + curl + jq scripting to push test metrics to external ALM/MQC systems via REST APIs.

<DevFlow - Full-Stack Q&A Platform/>

stack=["Next.js 14", "TypeScript 5", "MongoDB Atlas", "Tailwind CSS", "OpenAI API", "NextAuth", "Zod"]

A sophisticated, community-driven developer Q&A platform built natively on the Next.js 14 App Router with Server Actions in place of a separate API tier. Features a robust tagging system, global search across questions, answers, users and tags, and personalized recommendation feeds. An advanced reputation-and-badge engine gamifies participation, authentication runs through NextAuth.js (Google/GitHub OAuth + credentials) with end-to-end Zod validation, and the OpenAI API generates comprehensive AI answers and code snippets.

<Python GUI Automation Framework/>

stack=["Python 3.10", "OpenCV", "Tkinter", "ADB", "Bash"]

A resilient, cross-platform Python desktop application with a Tkinter GUI that controls and automates an Android application. Uses OpenCV template matching to visually detect and interact with dynamic on-device UI elements via the Android Debug Bridge (ADB), rather than any underlying API. Incorporates human-like interaction profiles — coordinate jitter and randomized timing — to evade bot-detection heuristics, and runs either from the GUI or headless as a Linux daemon.