Available for contract/fulltime — -95/hr or -250K+ Grand Prairie, TX (Remote-first | Open to SF/NYC relocation) US Citizen. No sponsorship needed. Phone: (469) 371-8556 | Email: jquindao1@icloud.com
| Repo | What it does | Tech |
|---|---|---|
| stripe-webhook-guard | HMAC SHA-256 webhook idempotency — zero duplicate charges | Node.js, PostgreSQL, Redis |
| sql-reconciliation-engine | Sub-5ms SOX-adjacent double-entry ledger variance detection | PostgreSQL, TypeScript |
| temporal-deployment-engine | Distributed deployment sagas, exponential backoff, compensation rollbacks | Temporal.io, TypeScript |
| railway-orchestrator | Container control plane — Railway GraphQL v2, real-time log streaming | Next.js 14, TypeScript |
| anti-cheat-sdk | Ring-3 userspace game integrity — PE hash verification, DLL injection detection | Rust, C++, Node.js |
| nexus-agent-framework | Multi-agent orchestration — AWS Bedrock, MCP, autonomous execution loops | TypeScript, AWS |
| gg-loop-platform | Live esports rewards platform — React 18, Express, PostgreSQL, Stripe + PayPal | React 18, Node.js |
Languages: TypeScript · JavaScript · Python · Rust · C++ · SQL Platforms: AWS (Bedrock, Lambda, CloudWatch) · Railway · Vercel · Cloudflare Databases: PostgreSQL · Redis · SQLite Payments: Stripe · PayPal (HMAC webhook idempotency, zero duplicates) AI/Agents: AWS Bedrock · MCP · Temporal.io · Autonomous pipeline loops
I am available immediately for:
- Contract / Freelance — -95/hr, weekly direct deposit
- Full-time engineering — -250K, remote-first
- B2B engagements — Webhook audits (.5K-7.5K), SQL reconciliation (-10K), anti-cheat SDK (-15K)
📧 jquindao1@icloud.com | 📞 (469) 371-8556 | 🌐 djjrip.github.io