Hai L.

Passionate 🧑‍💻 engineer crafting solutions through 💻 code and 🎨 creativity. 🚀 With over 7 years of experience as a Technical Leader for a SaaS startup specializing in live chat and chatbots, I possess expertise in the following tech stacks and tools: - Javascript/Typescript - React, Nextjs, Redux - Angular, NgRx, RxJS - ExpressJS, NestJS, Fastify - SCSS, Bootstrap, TailwindCSS, DaisyUI - Real-time communication using SocketIO - MongoDB, PostgreSQL, Qdrant, Redis - Kafka, RabbitMQ, SQS, SNS - Integration with third-party services: OpenAI, Stripe, Meta platforms - AWS services such as ECS, EKS, S3, Lambda, etc. - Docker, K8s, Helm, CI/CD by Github Actions - Git, Github, Gitlab, Nx, Vscode Utilizing these skills, I have contributed to various aspects of our projects, including: - Publishing NPM Authorization Packages to support the PBAC approach for access control and permission checks. - Providing direct support and solutions for customer problems. - Analyzing the requirements of our CEO and designing technical solutions for new features. - Researching and recommending solutions, and implementing features. - Conducting code reviews and training interns, while also providing support to other team members. - Optimizing web app and cronjob performance. - Refactoring the Redux implementation in the React application. - Migrating CI/CD from CircleCI to GitHub Actions, ECS to EKS, and moving product infrastructure between AWS accounts. - Transferring 700GB MongoDB between servers. - Collaborating with AWS Cloud Engineer to reduce system cost from $3000 to $1800 monthly. Thank you for visiting my profile. I look forward to the opportunity to collaborate with you in the future.