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Fullstack Developer

UI/UX Designer

More than a developer, I'm your product partner. I design concrete digital solutions to address your challenges and accelerate your growth.

Portrait
Rocket
RoleFullstack Developer
Available
Latest companiesTizzy • Eurosérum

About Me

Fullstack developer passionate about creating concrete digital solutions. My approach blends technical rigor with design sensitivity to transform your challenges into high-performing products.

Léna GB
Hey there! 👋
🎯

Results-oriented

I transform objectives into concrete solutions with a pragmatic and efficient approach.

🤝

Team player

Fluid communication and active collaboration to achieve common goals.

🚀

Proactive

I anticipate needs and propose continuous improvements to optimize projects.

🎨

Creative

I design intuitive and aesthetic interfaces that enhance user experience.

📚

Continuous learner

Constant technology watch and quick adaptation to new technologies.

⚡

Adaptable

Ability to evolve in changing environments and take on new challenges.

Projects

A recent selection. The rest sleeps in well-organized branches 😌

OPSY

Private

Industrial automation software for Eurosérum company.

C#MAUIOPCDASSMS
  • OPC Read/Write
  • Database recording
  • 1.2 second speed
  • Multi-threading
  • Error handling and auto-diagnosis

FluCast - Hackathon (48h)

Open-source

Project ideation during a Hackathon. Creation of a tool to optimize flu crisis management.

Python/StreamlitProphet
  • Regional and national maps
  • Flu tension forecasts s+1
  • Data analysis
  • Prophet trained on multiple datasets
  • Result accuracy
View repoView live

FitMe

WIP

Sports application for menstruating or menopausal people.

React NativeExpoTailwindCSSNestJSFirebaseDocker
  • Cycle tracking
  • Exercise suggestions aligned with cycle phase
  • Motivating UI
  • Streak system
View repo

Tizzy

Private

Product design, mockup and initial development of a mobile app dedicated to last-minute ticket resale.

FigmaFlutterFirebase
  • Authentication
  • Seat visualization
  • Search and filters
  • Drop system
  • Profile

Copilote

Private

Development of Eurosérum's ERP, particularly the maintenance section.

Vb.netSSMS
  • Stock management
  • Manual item entry
  • Filters
  • Excel reading for auto-entry
  • CRUD

Portfolio

Open-source

Development of my portfolio

Next.jsTypescriptTailwindCSSFramer MotionSelf-hosted on server
  • Project listing
  • About me section
  • 3D Hero
  • Contact
  • Experiences and education
View repo

Experience

A selection of my adventures.

  • Mobile Developer Apprentice (UI/UX)

    ·Tizzy
    Sep 2024 — Nov 2025 · Nancy / Hybrid · Apprenticeship

    Development of Tizzy startup and mobile application implementation

    FlutterFirebaseFigma
    • Product Design/Thinking
    • Decision-making and leadership
    • Application mockup design
    • Mobile development

  • Software Developer Apprentice & OPC Specialist

    ·Eurosérum (Sodiaal Group)
    Sep 2023 — Sep 2025 · Port-Sur-Saône · Apprenticeship

    Development of factory automation software and automation of time-consuming tasks (interfaces, workflows, reliability).

    VB.NETSSMSMySQLOPCDAC#DockerGitlabNetwork
    • Replaced Excel sheets with simplified and robust screens
    • Understanding of OPC DA systems and automation
    • Created dashboard tool for tracking and processing automation data
    • Client-oriented vision and factory needs communication
    • Installation of new tools to simplify processes
    • Technology watch

  • Volunteer/Seasonal Firefighter

    ·SDIS 70
    Sep 2020 — Today · Gray · Volunteer

    Volunteer firefighter for fire and rescue operations

    Non-technical
    • Deployment on various interventions
    • Emergency and stress management
    • Rigor
    • Courage and dedication
    • Discipline

Hard Skills

My technical skills and preferred tools.

React / Next.js

Frontend · 2 years

85%
Next 15/16App RouterServer Actions

Vue.js

Frontend · 2 years

60%
Options/Composition APINuxt

TypeScript

Frontend · 2 years

60%
InterfacesGenericsTypes

TailwindCSS

Frontend · 2 years

90%
Design tokensDark modeMotion

Framer Motion

Frontend · 2 years

80%
VariantsLayoutId

Three.js

Frontend · 1 year

30%
R3FShaders3D

Passions & Interests

Beyond code, what drives me daily

🎨

Design & UI/UX

Passionate about creating elegant and intuitive interfaces. I love exploring design trends and crafting memorable user experiences.

🚒

Volunteer Firefighter

Civic engagement and community service. An experience that taught me rigor, teamwork, and stress management.

🎮

Gaming & E-sports

Passionate gamer, I enjoy strategy, team coordination, and the competitive challenges of video games.

📚

Tech Watch

Always on the lookout for the latest tech innovations, frameworks, and best practices. I love learning and experimenting with new technologies.

✈️

Travel & Discovery

Exploring new cultures, cuisines, and landscapes. Every trip is a source of inspiration and open-mindedness.

🎵

Music

From Radiohead to Chopin, through System Of A Down and Twenty One Pilots. An eclectic passion ranging from metal to classical.

Let's work together

Available for new opportunities. Let's discuss your project!

Available immediately

Contact

Email

lena.gonzalez.breton@gmail.com

Location

Epinal | Nancy, France

Status

Epitech Student

Socials

LinkedIn

GitHub

Have a project in mind?

Let's discuss how I can help bring your ideas to life.

Meet me !