Solidity Developer

Software Engineer | 10+ Years In Full Stack, Cloud, And Blockchain

Senior full-stack developer with 10 years of experience, building secure and scalable platforms across e-commerce, game, blockchain, and fintech. Strong with Python Flask, FastAPI, Django, C#/.NET Core, Nodejs. Deployed microservices and APIs on AWS and Azure with CI/CD pipelines. Battle-tested in compliance-heavy environments HIPAA, PCIDSS, KYC/AML. Led projects, improved performance, and tightened security — code keeps running even during peak traffic. I primarily operate in the EST timezone, flexible for any timezone, and am well-versed in remote collaboration.


Experience: 5 years

Yearly salary: $40,000

Hourly rate: $20

Nationality: 🇻🇳 Vietnam

Residency: 🇻🇳 Vietnam


Experience

Game Backend Developer
Midnight Society (MMORPG Game DeadRop)
2022 - 2025
Launched NFT Founders’ Pass platform onboarding 400k+ users in 1 week, Built Next.js Hasura + serverless backend → achieved 99.99% uptime during peak loads. Designed event-driven architecture reducing ops overhead by 40%. Over 3 years, this architecture evolved to support critical game platform features: authentication, fiat/crypto payments, player entitlements, season pass bundling, and internal admin tools for moderation and operations. Applied Hasura's RBAC, custom event handler, PostgreSQL change events triggering modular backend functions, event driven serverless architecture.
Founding Engineer / Lead Engineer
ESG Impact (Saas, Fintech)
2022 - 2022
Joined as first engineer, defined stack MERN, Svelte, Admin panel, and built core trial data platform. Owned secure microservice APIs with Express, K8s, and deployed on AWS powering researcher and investor workflows. Utilized the MERN stack and various tools to create a robust system aimed at delivering impactful insights derived from comprehensive metrics. Worked with leadership and researchers to shape the product roadmap, scaling from prototype to production.
Software Engineer
Waivlength (Social Platform)
2021 - 2022
Served as a Frontend Engineer at Waivlength, a next-generation social platform focused on creating a safer, more autonomous, and user-centric digital space. Led UI design and development for both web and mobile platforms using React and React Native. Collaborated on payment integrations, improving checkout reliability and cutting transaction failures by 15%. Contributed to a seamless and adaptable user experience aligned with modern web3 and privacy-first principles.
Senior Lead Web Engineer
Abstrakt Software (Saas)
2020 - 2021
Suggested and reviewed the architecture of web applications so that it is very modular and reusable for efficient whitelabel deployments for multiple clients with varying needs. Writed code for blockchain integrations and their test cases and closely worked with the backend team to ensure that the technology used is best suited for the business use cases. Used several frameworks and tools like React, Vue, Typescript, Node, Laravel, HocketApp, CI/CD.
Software Developer
SCALE IT
2019 - 2020
Built Algorand-based blockchain migration CLI tool similar to truffle-suite/truffle. Developed in TypeScript with a focus on modularity, automation, and open-source contribution. Development of a grain trading application that uses blockchain for data logging with integrity and availability improvements. Immutable Stellar ledger transaction lifecycle development: creation, signing, validation, propagation. Design and implementation of ledger account funding, permission, and multi-account load-balancing schemes. Back-end development with integration tests using Golang, GraphQL, ArangoDB, React (mobx, flow), Spacemacs, Fully remote.
Junior Software Engineer
Microsoft
2016 - 2019
FY20 ESI Champion Award: Data Platform. Published Enterprise Cloud Migration Kit base on Large Cloud Project Accumulation, which includes Playbook, tools and best practice. Driving the deployment of the customers’ workloads into Azure and increasing their consumption of the platform by providing deployment guidance, supporting development of the customers’ cloud adoption model, and providing appropriate recommendations to overcome blockers.

Skills

ai
cloud-engineer
full-stack
web3
solidity
english