khanhx Goto Github PK

I’m a solution-oriented developer, a lifelong learner, and an adventurer with 6-year experience in the software industry.

"We can't truly solve a problem until we're able to see it thoroughly" – That’s my favorite quote. I've had some projects in my career where I've created successful software that helps people solve their real-life problems. It feels great knowing you can bring positive impacts to people around with your codes :)

Through my career for all these years, I have been working on creating software solutions, designing and leading teams and development. Most of my experience is in SaaS (Messaging automation, Virtual office) and block chain industries (payments, card bank, digital wallets and banking integrations).

🙌 Let's get in touch through my social media accounts:

• Linked In: https://www.linkedin.com/in/khanh-chau/
• Email: [email protected]

Apr 2022 - Now / as a Senior Software Engineer

• What's it: Poko - Seamless Fiat Payments for Web3

• Technologies:

  • Language: Typescript
  • Framework: Next.js, NestJs, React, Taro
  • Database: PostgreSQL, Redis, RabitMQ
  • Cloud: AWS (k8s, Lambda, Cloudfront)

• What I Do:

  • Payment App: Building a Payment App from scratch using Blockchain technology; Implementing Blockchain analysis tools to track multiple-source transactions.
  • GraphQL Server: Setting up indexer containers to listen & store the transaction from multiple chains using GraphQL Server:
  • Direct checkout: Implementing direct checkout with smart contract to manage fund and enable non-gas fee NFT purchases using Fiat currency for customers
  • Onramp Aggregator: Implementing gateways for consumer and suggesting the best route for users to buy crypto from Fiat (Onramp Aggregator)
  • Offramp: Introducing the system to track the SMA accounts (ERC 4337); issue/top up to the VISA/Mastercard allowing users to issue an USD virtual Mastercard using their crypto wallet that’s available for any type of payments (Offramp)
  • Setting up and monitoring resources of all the above projects; constructing and implementing infra as code using AWS-SDK

• Refs:

  • https://www.pokoapp.xyz/

Sep 2021 - Apr 2022 / as a Senior Backend Engineer

• What's it: Supremetech - Today.ly (A Visual Office for Remote Teams)

• Technologies:

  • Language: Typescript
  • Framework: Express, React, Janus
  • Database: PostgreSQL, Redis
  • Cloud: AWS (k8s, Lambda, API Gateway)

• What I Do:

  • Collaborated with UX researchers to identify gaps & improve UX in the app.
  • Researched solutions to scaling WebRTC application; implemented scaling for Janus service.
  • Updated real-time service to handle messages/updated events among a large group of users in multiple instances of API service.

• Refs:

  • https://today.ly

Jan 2018 - July 2021 / as a Software Engineer

• What's it: BotStar - An Omnichannel Chatbots & Live Chat Application for SMBs

• Technologies:

  • Language: Typescript, Golang
  • Framework: Fastify, Express, React, Angular2+
  • Database: Mongodb, DynamoDB
  • Cloud: AWS

• What I Do:

  • Utilized multiple services to fetch/catch data; constructed the app and made it ready for working offline (PWA).
  • Set up a structured and scalable codebase that helped visualize all configurations in front of users.
  • Upgraded message exchanges service performance by combining a web app service to handle warning/locking, and avoid multiple editing of one resource at the same time.
  • Developed an end-to-end billing system from scratch to collect payments and manage subscriptions using Stripe.
  • Supported business by adding an endpoint on the server to streamline data, growth, churn, and financial status through customized reports and dashboard.
  • Implemented chatbot direct integration with Google Sheet in a week; allowed users to streamline data in/out of GoogleSheet in real-time.

• Refs:

  • https://botstar.com
  • https://chative.io

2017 - 2021 / Bachelor’s degree in Information Technology

• University: FPT University in Da Nang, Vietnam.
• GPA: 3.2/4