Marcus Cole

Full-Stack Developer — SaaS MVP (Next.js + Supabase)

Feb 2026 - Apr 2026 • 2 mos

What I Built: - Architect and implement a multi-tenant data model in Supabase using row-level security (RLS) - Built a responsive, high-performance frontend in Next.js 14 with server components and streaming - Integrated Supabase Auth (email/password, OAuth, magic link) with role-based access control - Designed and expose a clean REST or tRPC API layer for frontend consumption - Stripe billing integration — subscriptions, webhooks, customer portal - Set up CI/CD pipelines (GitHub Actions), environment management, and Vercel deployments - Wrote unit and integration tests with a minimum 70% coverage threshold - Delivered clean, documented, handoff-ready code with a technical README

Senior Full-Stack Developer — AI-Powered SaaS Platform (Agentic Workflows + Claude API)

Dec 2025 - Apr 2026 • 4 mos

What I built: - Multi-tenant SaaS architecture with Supabase (RLS policies, org-level isolation, role-based access) - Agentic workflow engine — multi-step AI task chains using Claude API with tool use and function calling - Agent memory and context management — short-term and long-term state persistence across sessions - Clean, responsive React.js dashboard — real-time task status, agent activity logs, and user controls - Human-in-the-loop checkpoints — approval flows for high-stakes agent actions before execution - Observability layer — structured logging, token usage tracking, and error recovery for agent runs - Supabase Edge Functions for serverless API orchestration and secure Claude API proxying - Webhook integrations and third-party tool connections for agent action execution - Stripe billing — usage-based or per-seat subscription tied to agent run consumption - Full deployment pipeline via Vercel with environment management and CI/CD via GitHub Actions

Multi-Tenant Field Service SaaS — Web Dashboard + Android & iOS Apps

Nov 2025 - Mar 2026 • 4 mos

Core features I built - Multi-tenant architecture: isolated workspaces per business, with org-level settings and billing - Admin dashboard — job management, scheduling calendar, customer records, and reporting - Technician mobile app — job list, real-time status updates, GPS check-in/out, photo capture - Real-time notifications and job status sync across web and mobile (Supabase Realtime) - Role-based access control: admin, dispatcher, and field technician roles - In-app invoicing and digital signatures on the mobile app - Stripe billing — per-seat or per-usage subscription model - Push notifications (Expo / FCM / APNs) for job assignments and updates - App Store and Google Play submission support