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Hoàng Tuấn Kiệt Chung

@hongtunkitchung

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Backend Engineer at Indikay who built a real-time trading bot system and reduced server costs by 90%.

Vietnam

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At Indikay (Formerly Goonma), I developed modules for a trading bot platform, including web socket, pricing, bot, and order services. I reduced server costs by 90% by merging indicator instances, implementing multi-threading, and optimizing event-driven signal calculations.

I also built a fault-tolerant real-time trading bot system within a microservices architecture, along with a web socket service and supporting SDK for real-time data.

At Teko, I developed smart contract features on Cardano and built services for interacting with contracts, including a Go-based transaction watcher. I also implemented a smart contract for a betting game on Polygon.

At Sotatek, I work on a healthcare e-commerce project, implementing features and data migrations. I optimized a large query using CTEs, indexes, and query analysis, cutting API response time by 80%.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer

Current

Sotatek

Sep 2024 - Present (2 years 1 month)

Working on an E-commerce project in the healthcare domain using Golang, Redis, Postgres, GraphQL, and Microsoft Azure. Optimized big queries using CTE, index, and EXPLAIN to improve API response time by 80%.

Go Redis PostgreSQL GraphQL Azure ArgoCD Datadog SAP SQL Optimization

Backend Engineer

Indikay (Formerly Goonma)

Oct 2022 - Apr 2026 (3 years 6 months)

Designed and implemented modules for a trading bot platform, including web socket, indicator, real-time pricing, bot, and order services. Reduced server costs by 90% through optimization and built a fault-tolerant real-time trading bot system.

Go Python NATS Vault Redis PostgreSQL Kubernetes WebSockets Microservices

Senior Backend Engineer

Second

Jun 2024 - Dec 2024 (6 months)

Designed and implemented an RBAC service using Casbin and built a notification service with Twilio. Implemented microservices with CQRS pattern and Domain Driven Design.

Go Casbin Twilio NATS PostgreSQL CQRS Domain Driven Design Microservices

Backend Engineer

Teko

Apr 2023 - Jun 2024 (1 year 2 months)

Developed critical smart contract features using Aiken on the Cardano blockchain, created a Go-based transaction-watcher, and implemented a TypeScript transaction-builder service. Also implemented smart contracts in Solidity for a betting game on Polygon.

Go Aiken TypeScript Solidity PostgreSQL AWS Blockchain Smart Contracts Cardano Polygon

Associate Software Engineer

Buymed

Oct 2022 - Apr 2023 (6 months)

Developed a recommendation system for basket consolidation, reducing operation time by 40%. Created a box suggestion feature and implemented an error reporting system to halve processing time.

Go MongoDB Recommendation Systems Algorithm Optimization

Backend Developer

Wolffun

Jun 2022 - Oct 2022 (4 months)

Built an in-house support system for dynamically configurable services using Golang, Redis, and MongoDB. Supported building features on Thetan Arena Game Blockchain.

Go Redis MongoDB Blockchain Integration Testing

Fullstack Developer

Blockchain Lab

Apr 2020 - Jun 2022 (2 years 2 months)

Developed a blockchain wallet for Bitcoin and Ethereum using NodeJS, implemented a multisign feature, and researched NFT transfers on Bitcoin using bitcoind, Merkle trees, and IPFS. Also experimented with the Lightning Network.