Open to opportunities

// hi, I'm

AlexandreMathieu.

Full-Stack Developer — back-end leaning · 3 yrs XP

available

@Nauwk07🎮🚗🏋️🎬

I work on mature object-oriented stacks — .NET / C# and Java / Spring — with Angular on the front end and PostgreSQL as the database. I enjoy designing clean APIs, writing tested and readable code, and committing to a product for the long run. I'm looking for a demanding tech team, where quality beats rushing.

MSc
Master's, ESIEA: 0+
years of experience: Fullstack
front · back · DevOps: FR/EN
professional bilingual

GitHub LinkedIn 06 38 01 09 32

Tech stack.

the tools I use daily, sorted by layer

C#/Java/TypeScript/JavaScript/WinDev / WLanguage/SQL/PL/SQL/.NET/Spring (Boot)/Hibernate / JPA/REST APIs/SOAP/Quarkus/Angular/RxJS/TypeScript/Kendo UI/HTML/SASS / CSS/PostgreSQL/MySQL/MongoDB/Oracle (PL/SQL)/Git/Docker/Jenkins/Linux (Debian/Ubuntu)/Caddy/Cloudflare/AWS (S3)/Jira/Trello/Cursor/Claude Code/Codex/Junie/GitHub Copilot/Agile / Scrum/Clean Code/Pair Programming/Code Review/Unit testing (JUnit)/C#/Java/TypeScript/JavaScript/WinDev / WLanguage/SQL/PL/SQL/.NET/Spring (Boot)/Hibernate / JPA/REST APIs/SOAP/Quarkus/Angular/RxJS/TypeScript/Kendo UI/HTML/SASS / CSS/PostgreSQL/MySQL/MongoDB/Oracle (PL/SQL)/Git/Docker/Jenkins/Linux (Debian/Ubuntu)/Caddy/Cloudflare/AWS (S3)/Jira/Trello/Cursor/Claude Code/Codex/Junie/GitHub Copilot/Agile / Scrum/Clean Code/Pair Programming/Code Review/Unit testing (JUnit)/

languages

C#
Java
TypeScript
JavaScript
WinDev / WLanguage
SQL
PL/SQL

back-end

.NET
Spring (Boot)
Hibernate / JPA
REST APIs
SOAP
Quarkus

front-end

Angular
RxJS
TypeScript
Kendo UI
HTML
SASS / CSS

// personal exploration

React
Next.js
Tailwind
Drizzle ORM

databases

PostgreSQL
MySQL
MongoDB
Oracle (PL/SQL)

tools & ops

Git
Docker
Jenkins
Linux (Debian/Ubuntu)
Caddy
Cloudflare
AWS (S3)
Jira
Trello

AI tools

Cursor
Claude Code
Codex
Junie
GitHub Copilot

methods & practices

Agile / Scrum
Clean Code
Pair Programming
Code Review
Unit testing (JUnit)

Experience.

professional history — most recent first

now

Sep. 2025 → present

Aix-en-Provence, France · Remote
Software publisher for chartered accountants and their clients
Team of 6 developers

Full-Stack Developer · ACD GroupePermanent (CDI)

.NET / C# · HTML / CSS / JS / jQuery · Kendo UI · Razor · WinDev · SQL

Technical lead for e-invoicing since March 2026: owning the topic in the context of the French e-invoicing reform. Development and integration of connectors, company registration management, invoice lifecycle management, regulatory watch, centralizing the team's knowledge. 250+ pilot customers supported during the test phase.
Customer access management overhaul: migrating the module from the desktop client (WinDev) to the web (.NET). Full design and implementation of the administrator account registration flow (≈ 1/3 of the project scope).
Full-stack development on both products of the group — web application (.NET) and desktop application (WinDev) — back end, front end and database.
Technical interface with customers on e-invoicing topics and product evolutions.

Mar. 2023 → Aug. 2025 · 2.5 yrs

Les Angles, France
Life-insurance management delegation
Architecture team · 4 developers + lead architect

Developer · PACK SolutionsApprenticeship

Java / Spring · Quarkus · PL/SQL · PostgreSQL · Angular · SOAP / REST · Jenkins · Jira

Critical batch optimization for the company's biggest client: complete rework of a data-processing job, cutting execution time by 67% (from 2h to ~40 min over 120,000 rows).
Database migration from Oracle PL/SQL to PostgreSQL: contributed to porting the schema, stored procedures and the data-access layer.
Angular front-end migration from v12 to v19: 7 major version upgrades, code adaptation, handling breaking changes.
Development and maintenance of data-processing batches (Java/Spring) for life-insurance business processes.
Maintenance and development of SOAP and REST APIs on the business information system.
Writing technical specifications for upcoming projects.
PoC for AI-driven test automation: automating UI journeys in a business application.
Methodology: Agile / Scrum, Jira, pair programming.

Mar. 2022 → Jul. 2022 · 5 months

Client: high-end campsite chain (~90 sites across Europe)
Team of 4 developers · 12h / week

Back-End Developer · Yelloh! VillagesClient academic project · ESIEA

Java JEE (vanilla) · Angular · PostgreSQL · Leaflet

Web application for building dynamic maps of the group's campsites — markers, zones, points of interest (premium areas, restaurants, pools...). A headquarters tool to manage the maps of the whole network.
Design and full development of the back-end API in vanilla Java JEE (no framework) and the associated PostgreSQL schema.
Contributed to integrating Leaflet into the Angular front end (interactive maps, markers, zones).
Multi-role management system: headquarters administrators + "mapper" users in charge of customizing the maps.
Client methodology: bi-monthly meetings with Yelloh! headquarters, monthly demos, formal specifications.
Shipped to production on the client's servers.
ESIEA Tech'Day award winner — annual class project showcase, grade 36/40.

Personal projects.

side-projects in production, 100% personal code & design

art-vm.fr

Complete e-commerce website — clothing and art paintings. Catalog, cart, Stripe payments, back office.

Next.js
PostgreSQL
Drizzle
Tailwind
Stripe

domainedusoleilcouchant.fr

Showcase website for a seasonal rental estate — presentation, gallery, booking form. Built for a real client.

Next.js
PostgreSQL
Drizzle
Tailwind

admin.nauwk.dev

Management interface for a Discord bot — full dashboard: authentication, server management, command configuration, monitoring.

Next.js
PostgreSQL
Drizzle

Education.

academic background

ESIEA

Software Engineering Expert

On-site in Nîmes, then remote in Agen

RNCP Level 7 — Master's degree equivalent

September 2025

Lycée Pasquet

French Baccalaureate in Engineering Sciences

European section — Arles, France

2018

Certifications.

certifications & credentials

TOEIC

English — ETS

945/990

Certificat Voltaire

French spelling proficiency

707/1000

English4IT

Technical English

Git Fundamentals

GitKraken Academy

Languages.

spoken languages

🇫🇷

French

native

🇬🇧

English

professional — fluent conversation, tech doc reading

get in touch.

form or direct contact — fast reply guaranteed

alxxmtu@gmail.com 06 38 01 09 32 github.com/Nauwk07 linkedin.com/in/alxxmtu