Hi all, I'm Lê Công Đắt

I'm a Full-Stack Software Engineer with 2 years of experience designing and scaling backend systems in Python (Django, FastAPI, Flask), including serverless functions on AWS Lambda, with a strong focus on performance and reliability. I build and optimize REST APIs and microservices, manage distributed workloads with Celery, RabbitMQ, and Redis, and work comfortably across the stack with React and TypeScript. I enjoy collaborating with distributed, multinational teams to ship maintainable features in real-world SaaS products.

See My Resume

What I do

CRAZY FULL STACK DEVELOPER WHO WANTS TO EXPLORE EVERY TECH STACK

Full Stack Development

⚡ Designing and scaling backend systems and REST APIs in Python (Django, FastAPI, Flask)

⚡ Profiling and optimizing slow endpoints; microservices and serverless functions on AWS Lambda

⚡ Managing distributed workloads with Celery, RabbitMQ, and Redis

⚡ Building responsive web apps with React, Next.js, Gatsby, and TypeScript

⚡ Integrating SSO (SAML 2.0), Stripe, and LLM APIs (Google Gemini, OpenAI)

⚡ Building cross-platform mobile applications with Flutter

Languages
Backend & Architecture
Frontend & Mobile
Databases
Cloud & DevOps
Tools

Experience

Netpower

Netpower

Software Engineer
Jun 2025 - Present
Key contributor to SDS Manager, a microservices-based SaaS platform for global chemical compliance and workplace safety, backed by a database of 17M+ safety data sheets serving corporate clients across multiple regions.
  • Cut response times on heavy API endpoints from 50+ seconds (frequent timeouts) to 2–4 seconds via database indexing, query restructuring, and Redis caching.
  • Designed and maintained scalable backend services in Python (Django, FastAPI, Flask) and PostgreSQL following microservices patterns.
  • Engineered background processing and task queuing with Celery and RabbitMQ for high-volume, reliable data synchronization.
  • Built high-performance, SEO-optimized UIs with React, TypeScript, and Gatsby; integrated Elasticsearch for near real-time document retrieval.
  • Implemented secure SSO via SAML 2.0 for corporate clients and integrated Stripe for automated global subscription billing.
  • Integrated LLM APIs (Google Gemini, OpenAI) for safety-document processing and used Cloudflare R2 for scalable object storage.
Splus-Software JSC

Splus-Software JSC

Software Engineer
Oct 2024 - May 2025
Delivered full-stack web and mobile products across CAD workflows, live commerce, and mobile apps, with serverless backends on AWS.
  • Built a CAD drawing order platform for automated cost estimation and subcontractor routing with serverless processing. (Python, React, AWS Lambda, API Gateway, S3, RDS)
  • Created an e-commerce livestream web app using Cloudflare Stream with secure SSO and a highly available AWS backend. (Python, React)
  • Engineered a cross-platform baseball-statistics mobile app and shipped it to Google Play and the App Store. (Flutter, Python, AWS Lambda, DynamoDB)
  • Developed a tablet restaurant-ordering app using Clean Architecture with offline real-time receipts over the local network. (Flutter, Dart)

Education

University of Science, VNU-HCM (HCMUS)
University of Science, VNU-HCM (HCMUS)
Bachelor of Science in Software Engineering
10/2020 - 11/20249.01

GPA: 9.01/10.0 (3.81/4.0) — Graduated with Distinction.

  • Excellence Scholarships for 4 semesters (2021–2024)
  • Dean's List, Faculty of Information Technology

Certificates

TOEIC 860/990
ETS
2024

Listening 455, Reading 405

TOEIC Speaking & Writing 330/400
ETS
2024

Speaking 140, Writing 190

Honors & Awards

Vietnamese Olympiad in Informatics (VOI)

National-level contestant; Top 3 in the Provincial Selection Exam for the National VOI Team.

Excellent Student Competition in Informatics

Second Prize (Provincial Level) and First Prize (District Level); Top 1 student of high school by GPA.

Projects

Vietnam Geo Platform

Full-stack platform gamifying Vietnamese geography through interactive maps, built around Vietnam's 2025 administrative merge (63 → 34 provinces). Features a server-authoritative anti-cheat scoring API, Redis-cached GeoJSON, interactive d3-geo SVG maps with province → district → ward drill-down, and 7-language i18n. (Django 6 / DRF, React 19 / TypeScript, Redis)

LetTutor

English E-Learning Application for Vietnamese students. LetTutor is a platform where students can learn English with native speakers and other students. The platform includes features like booking, video calling, chat.

Demo

KDN-Classroom

Classroom Management Tools for Teachers and Students. KDN-Classroom is a platform where teachers can create classes, add students, and manage their classes. Students can join classes, view grades, review.

Demo

TechWorld-Shopping

Next.js-based e-commerce web is a cutting-edge online platform that offers a wide range of high-quality tech devices for tech enthusiasts and gadget lovers

Demo

LCD-Shopping

Full Stack Shopping App base on Amazon along with Admin Panel. LCD-Shopping is a platform where users can buy products, add them to the cart, and checkout. Admin can manage products, orders, and users.

View more on GitHub

Reach Out to me!

DISCUSS A PROJECT OR JUST WANT TO SAY HI? MY INBOX IS OPEN FOR ALL

🚀 Full-stack Developer | Python | React | Flutter | ExpressJS

Ho Chi Minh City