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Vaibhav Upadhyay

Full-Stack Systems Engineer

up.vaibhav1@gmail.com|Bangkok, Thailand|https://iamvb.com

Profile Summary

I am a Systems Engineer based in Bangkok, specializing in the intersection of decentralized finance and applied Artificial Intelligence.

Work Experience

Software Engineer

Menexus GmbH / Aureus

Oct 2022 — PresentBangkok, Thailand
  • Developed & maintained Flutter applications with Firebase integration, BLoC state management, and custom UI components.
  • Built & optimized CI/CD pipelines using Codemagic, reducing deployment time by 40%.
  • Integrated Google Maps API, authentication flows (OAuth, Firebase Auth), and REST APIs into mobile apps.
  • Implemented Flutter animations & UI improvements, enhancing user experience.
  • Led bug-fixing and performance optimization efforts, improving app responsiveness by 30%.
  • Collaborated with backend engineers to define API contracts and ensure smooth integration.
  • Conducted developer interviews and contributed to building a strong development team.
FlutterFirebaseDartBLoCCodemagicCI/CDGoogle Maps API

Senior Project

Assumption University

Nov 2021 — Oct 2022Bangkok, Thailand
  • Developed a van booking system for university students, including a mobile app (Flutter) and web admin panel.
  • Implemented real-time location tracking with Google Maps API and Firebase Realtime Database.
  • Created three apps: User App, Driver App, and Admin Panel for efficient management.
FlutterFirebaseGoogle Maps APIRealtime Database

Selected Projects

Institutional Decision Intelligence Engine

Zero-exposure HITL execution

Architected a compliance-ready, multi-agent consensus pipeline routing data through an 8-directorate LLM council. Engineered secure, Human-in-the-Loop (HITL) cryptographic signing flows to ensure strict non-custodial execution and verifiable on-chain settlement.

Python / FastAPI / Solidity / Next.js

Distributed Financial Sync Node

Sub-200ms synchronization

Designed a CRDT-based reconciliation engine for distributed ledger systems with AES-256 encryption.

Flutter / Dart / Firebase

Multi-Chain Wallet Infrastructure

Zero-exposure transaction signing

Integrated secure EVM-compatible signing flows with abstraction across chains.

Solidity / TypeScript / Web3 APIs

DEX Frontend System

Managed deployment & production stability for decentralized trading interface.

React / Next.js / CI/CD Pipelines

Skills

Mobile Development

Flutter, Dart, Kotlin, State Management (BLoC, Provider), Firebase, SQLite & Local Storage

Backend & APIs

REST APIs & GraphQL, Node.js, Firebase Cloud Functions, Authentication (OAuth, Firebase Auth), Agentic Workflow Automation, Solidity, TypeScript, Web3 APIs, FastAPI, PostgreSQL, pgvector, Claude API, Python, LLM Orchestration, Multi-Agent Systems, Zero-Exposure Signing

Tools & CI/CD

Git, GitHub, GitLab, Codemagic, Fastlane, Postman, CI/CD Pipelines, React, Next.js

Testing & Debugging

Unit & Widget Testing, Mockito, Debugging & Performance Optimization

Frontend & Web

React.js, Next.js, TypeScript, Tailwind CSS

Education

Computer Engineering

Assumption University

2018 - 2022Bangkok, Thailand

High School

Sunbeam School Varuna, Varanasi

2017 - 2018Varanasi, India

Languages

  • English: Fluent
  • Hindi: Native
  • Thai: Basic/Conversational

Certifications

  • Flutter Boot Camp – Dr. Angela Yu
  • Software Quality Assurance Boot Camp – Rahul Shetty Academy