Vi So
Full Stack Developer
7+ years exp
6+ years ML exp
SQL
C++
C
Node JS
Python
JavaScript
TypeScript
Active 2 days ago
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Overview
Technical skills
Timeline
Roles
Overview
Full-stack and integration-focused engineer building API-driven web products, event-processing backends, authentication systems, payment integrations, telephony/SIP solutions, AI-enabled services, and Web3 components. Handles end-to-end delivery across architecture, implementation, integration, testing, deployment, and ongoing support, including webhook- and idempotency-centric workflows. Has project experience in multilingual platforms, live streaming pipelines, and embedded AI assistants powered by retrieval workflows.
Technical skills
SQL
C++
C
Node JS
Python• Senior • 7y+
JavaScript• Middle • 7y+
TypeScript• Senior • 7y+
C
FFmpeg• 7y+
Python
FastAPI• 7y+
Databases
PostgreSQL• 7y+
SQLite• 7y+
Supabase• 6y+
AI/ML
Embeddings
LangChain
Prompt Engineering• 6y+
RAG• 6y+
llama.cpp• 3y+
LangGraph
Frontend
Next.js• 7y+
React.js• 7y+
DevOps
Git
Platform Engineering
Rest API• 7y+
Web3
Smart Contracts
Solana• 6y+
TON• 5y+
Robotics
GStreamer• 7y+
QA
Playwright
Timeline
Integration Engineer / Full-Stack Engineer / Automation Consultant
•
Middle
Independent
•
Contractor
Delivered API-driven web systems, event-processing backends, and authentication flows for client projects from requirements through deployment and production handover. Integrated third-party services including payment providers and built reliable webhook-driven workflows with retries and idempotent processing. Implemented SIP/Asterisk telephony integrations and designed AI-enabled products using graph-based orchestration and retrieval-augmented generation. Built multilingual customer-facing websites and browser extension integrations tied to external APIs and services.
Rest API
FastAPI
Python
JavaScript
TypeScript
Next.js
React.js
PostgreSQL
Supabase
SQLite
FFmpeg
GStreamer
LangGraph
RAG
Prompt Engineering
llama.cpp
TON
Solana