Fullstack Engineer

Célien AUPIAIS


Technical Lead with 5+ years building and leading web application projects across the full stack. Expert in TypeScript, Angular, NestJS, and cloud technologies (Azure, AWS). Combines hands-on development skills with team leadership experience, currently training engineers and managing quality for Azure Web Apps at Concentrix while collaborating with Microsoft on complex technical issues.


Fullstack Engineer
CheckUrGoup

2024 - Present


CheckUrGroup is a SaaS project I have co-created with a designer associate. I'm currently responsible for all the technical parts from development to production hosting.
This project is a business application aimed to the professional and group tourism sector. Our clients range from small touristic sites to public actors.
The application is developed around two websites. The first one using the universal rendering engine for the public commercial website, optimizing SEO, and flat file CMS to reduce the computing needs for this part.The latter is a fullstack application containing multiple components, the Angular CSR frontend, a main nest api and standalone micro services to manage asynchronous operations based on a messaging queue.Tech stack : Angular, NestJS, Prisma, Postgres, Redis, BullMQ, Gitlab CI/CD, Scaleway (TEM, S3), DockerTools : Zed, Ollama


Technical Lead
Azure Web Apps

2024 - Present


In this position I've been responsible to train and continually assist a team of Support Engineers to deliver premium level technical support for the Azure App Services hosting platform. One of my mission was to assist the product engineering team in gathering more details, using internal tools and databases with extensive KQL requests, to speed up the escalations. The issues were related to linux and windows server environment configuration, CI/CD, SSL configuration, runtime configuration, networking and other Azure services integration.Tools : Dynamics 365, M365, Copilot, Azure Data Explorer, KQL, Azure Platform, Internal tools


Custom CRM
Studio Smile

Freelance mission - 2 month


This project is an internal CMS aimed to assist a network of dental clinics and a central laboratory in managing the order, manufacturing and logistics of orthodontic appliances. It allowed the clinics to enhance their productivity and accuracy thanks to the integrated automated workflows.Tech stack : Angular, TailwindCSS, Strapi, S3, DockerTools : VSC, Sourcegraph Cody


Lead developer
Avocalix

2023


During this mission I've coordinated a technical team composed of 6 developers under the CEO and CTO supervision. I translated product vision in technical specifications and task, managed the tasks for the different collaborators according to their specialty (frontend, backend, AI/ML) and reviewed the code as part of delivery management.Tech stack : React, NextJS, Material UI, NestJS, MongoDB, Prisma, Docker, AzureTools : VSC, Github Copilot


Fullstack engineer
SIRAP

2023


At SIRAP, I've joined a project team of 5 collaborators to help develop a complex business application. This application was aimed to network managers such as internet infrastructure, gas, electricity and water providers. It needed to be entirely configurable, including the data model and supported recursive data by default as required by the broad range of target customers and network topologies.Tech stack : Angular, Angular Material, NestJS, TypeORM, Docker


UPE05


This project is a website that includes an easy-to-use content management system, allowing independent content updates with full site editing capabilities. It also features an application section where representatives can easily create activity reports. The project was developed in partnership with the communication agency Com'etc.Tech stack : OctoberCMS (Laravel), TailwindCSS, AlpineJS, S3Tools : VSC, Tabnine


Génération documentaire
EUROVIA


This project is software built using Electron to streamline the creation of product specification sheets. It was developed in collaboration with the Com'etc agency.Tech stack : Electron, TailwindCSS, Puppeteer, AlpineJS


Site vitrine
CBAS


This project is a multilingual website equipped with a straightforward content management system that enables independent content updates. It was created in partnership with the communication agency Com'etc.Tech stack : WinterCMS (Laravel), TailwindCSS, AlpineJS


Site e-commerce
Six Décembre

Durée de la mission : 3 mois


This project is an e-commerce website initially built on PrestaShop in 2021, then redesigned on Shopify. It's a concept store specializing in childcare products. The site was developed in partnership with the Com'etc agency.Tech stack : Shopify Liquid

The shop is now offline, you may still access the theme demo using the following password : xomaog


Content update
Fruits and wine


A short-term assignment involving content updates, layout adjustments, and optimization on a website without a CMS, built entirely with PHP and JavaScript.Tech stack : PHP, JavaScript


Fullstack developer
WeKey

2021


Mission de renfort sur un développement d'application métier (RH) au sein de WeKey à destination des clients de ce cabinet de recrutement.Technologies utilisées : Symfony 3, MySQL, JQuery


Virtual Open Day Platform
UCO Niort

Early 2020


This project was created during the health crisis to enable a remote open day event for exploring the campus and various degree programs. It also included a feature for real-time conversations with students from the respective programs.Tech stack : Laravel, Livewire, SocketIO, TailwindCSS.


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Let's work together on your next project!


Looking for development expertise and impressed by my portfolio? Whether you need a showcase website, a custom business application, or an e-commerce platform, I'm available for freelance projects or permanent positions. Don't hesitate to contact me to discuss your needs and how I can contribute!