l
letrieuby

Le Vy

@letrieuby

Full Stack Web Developer, Backend APIs and Real Time Apps

Vietnam
Vietnamien
Certaines informations sont présentées en anglais.
À propos de moi
Full-stack developer with 3+ years building B2B/B2C web apps used by tens of thousands of people, including exam and survey platforms serving 20,000+ candidates and 50,000+ teachers. Backend: ASP.NET Core, C#, REST APIs, JWT auth, SignalR real-time, Kafka/Redis background jobs, automated PDF reports. Frontend: Vue 2/3, TypeScript, Tailwind. Databases: SQL Server, MySQL, PostgreSQL, MongoDB. DevOps: Docker, Nginx, AWS. I reply fast, keep timelines clear, and I am happy to start with a small task before bigger work.... Plus d’infos

Compétences

l
letrieuby
Le Vy
hors ligne • 
Temps de réponse moyen de 1 heure

Voir mes services

Sites Web personnalisés
I will build a b2b saas platform with quoting, workflow and asp net core
De80 $US / projetPlus de détails
Sites Web personnalisés
I will add real time features with signalr chat and notifications to your dotnet app
De85 $US / projetPlus de détails

Portfolio

Expérience professionnelle

BERPL_Technologies

Software Developer

BERPL Technologies • Temps plein

Oct 2025 - Present • 10 mos

Building Bid360, a B2B platform for interior finishes, remodeling, installation, pricing and bidding. - Develop ASP.NET Core backend modules and Vue.js frontend features using DDD, Clean Architecture, REST APIs, HATEOAS, domain events and background jobs. - Optimize template-based and batch PDF generation with Razor and ABCpdf. - Review code and designs; resolve migration, pricing, data, permission and runtime issues. - Use AI tooling for tracing, code review, documentation and sprint planning.

Software Developer

Blue Ocean Technology JSC • Temps plein

Aug 2022 - Sep 2025 • 3 yrs 1 mo

Built and deployed B2B/B2C ASP.NET exam, reporting and document systems used by nearly 20,000 candidates. - In 2025, delivered the citywide Foreign Language Competency Survey platform for the HCMC Department of Education and Training, serving 50,000 teachers; supported live assessment operations and urgent production fixes. - Used Kafka, Redis, .NET Channels and background jobs for asynchronous import/export; SignalR and WebSockets for real-time features. - Built low-memory template and batch PDF exports, plus Word/MathType content extraction. - Improved API speed 2x and reduced database size 40% through caching, indexing, partitioning and query optimization. - Worked with replication, read/write splitting and log shipping; deployed on Windows/IIS and Docker/Linux with Nginx load balancing.