Martin Sosa

• ★ Legendary Private repo

  KODA — Scholastic Esports LMS

  Full-Stack Engineer · Jan 2026 – Present

  A React 19 / TypeScript learning-management platform for K–12 scholastic esports on a Firebase backend, designed for an addressable market of 700+ Title I schools in NYC. Shipped KODA Coach — an in-app AI assistant on the Gemini API via a Firebase callable function, with auth gating, rate limiting, prompt-injection input sanitization, and per-user context injection. Real-time bracket engine (single/double elimination + round-robin) and role-based access control, built to FERPA/COPPA standards.

  • 110+ PRs merged
  • Zero-downtime previews
  • FERPA / COPPA
  • React 19
  • TypeScript
  • Firebase
  • Gemini API
  • GitHub Actions
• ◆ Epic Private repo

  Ledes — Category-Selective Microblogging

  Full-Stack Mobile Engineer · Sep 2025 – Present

  A social mobile app with a novel “lede” model — followers subscribe to specific content buckets (e.g. Tech vs. Sports) per creator. React Native (Expo) + TypeScript front end on a Node.js / Express 5 + PostgreSQL backend: an 18-endpoint REST API, JWT auth with silent token refresh, gesture-driven UI (Reanimated), optimistic updates, and full-text search.

  • 18-endpoint API
  • Silent token refresh
  • Optimistic UI
  • React Native
  • TypeScript
  • Node / Express
  • PostgreSQL
• ❖ Rare Private repo

  Hermes — Self-Hosted LLM Stack

  Deployment & Ops · 2026

  Deployed & operate a self-hosted Qwen3-8B (64k context) via Ollama alongside a Dockerized ComfyUI/SDXL image service with NVIDIA CUDA GPU passthrough on a remote box. Shared-VRAM management (model eviction before image generation), idempotent phased deploys (preflight → build → smoke → integrate) with automatic rollback, and zero-port-forward remote access over a Tailscale (WireGuard) mesh — wired into a Discord /imagine command.

  • Shared-GPU VRAM ops
  • Phased deploys + rollback
  • WireGuard mesh
  • Ollama
  • Docker
  • NVIDIA CUDA
  • Tailscale

• warbase

  Map-based conquest game on the Foursquare API — claim and hold real-world locations. Ruby

• exp-atk

  Full-stack forum platform built by a team of four. Ruby

• personal-pokedex

  Pokédex powered by the PokéAPI with AJAX & JSON. JavaScript

• ROScripts

  Scripts for Ragnarok Online private servers — where the adventure started. Game dev

⛁ Browse all 32 repositories in the archives →

1. Jan 2025 – Present

   Independent Software Engineer

   Remote

   Full-stack product engineering and AI infrastructure — KODA, Ledes, and the Hermes self-hosted LLM stack (see the Quest Log above).

2. Oct 2018 – Jan 2025

   Software Engineer

   Equitable — Secaucus, NJ (Remote/Hybrid) · promoted from Workflow Analyst

   Optimized the Python services powering Hyperscience, an AI-driven OCR platform parsing high-variance, semi-structured insurance documents — including incomplete and corrupted inputs. Refined the SmartFix classification algorithm and automated email-to-database and batch workflows with Python + SQL feeding Tableau dashboards.

   • +60% classification accuracy
   • −90% manual effort
   • −75% manual data entry
   • +60% uptime (<1% downtime)
   • −40% turnaround
3. Origin

   Training

   B.S. Computer Science — Polytechnic Institute of NYU, 2014.
   Software Engineering Intensive Certificate — NY Code + Design Academy, 2018.