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You will get I'll Build Your API — REST, GraphQL, MCP, Backend Services

Sean R.Status: Offline
Sean R. Sean R.
Preview imagePreview imagePreview image

Let a pro handle the details

Buy Web Application Programming services from Sean, priced and ready to go.
Sean R.Status: Offline
Sean R. Sean R.
Preview imagePreview imagePreview image

Let a pro handle the details

Buy Web Application Programming services from Sean, priced and ready to go.

Project details

I build APIs and backend services in TypeScript and Python. Recent work includes a 30+ action API powering a multi-featured dashboard, MCP servers for AI agent integration, and Docker Compose backends with PostgreSQL and Redis. I build typed, tested, documented backends, not throwaway scripts.
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Performance Optimization, Security, Design
What's included
Service Tiers Starter
$500
Standard
$1,500
Advanced
$3,500
Delivery Time 3 days 7 days 14 days
Number of Revisions
123
Design Customization
-
-
Content Upload
-
Responsive Design
Source Code

Frequently asked questions

Sean R.Status: Offline

About Sean

Sean R.Status: Offline
Full-Stack AI Engineer | Claude, Gemini, RAG, MCP Agents, OpenClaw
Livermore, United States - 11:45 am local time
I build production AI systems and full-stack applications — not prototypes, not tutorials, real deployed pipelines that handle errors, manage costs, and your team can maintain.

What I've shipped recently: a multi-agent platform searching 96 data sources with LLM batch scoring, 7 adapter types, cron automation, and 11-tab dashboard. A hub-and-spoke web platform generating production-ready sites across news, marketing, government, and education — 24 shared modules, 49 UI components, 2,276 test files. Cross-platform mobile apps with Expo/React Native — 35+ native integrations, App Store ready.

Before freelancing: $14M cloud cost reduction at GE Digital. Co-founded the OpenStack Foundation (valued at $5B). Unified 40+ team members across 5 countries at a global infrastructure company. 25+ years across enterprise (GE Digital, Yahoo, Walmart, VMware), government, and startups.

Tech: TypeScript, Python, Next.js, React, React Native/Expo, Claude API, Vercel AI SDK, LLaMA, Portkey, Langfuse, Docker, PostgreSQL, Redis, Terraform, AWS, Azure, GitHub Actions, GitLab CI, Vercel CD.

I have solid GitHub stats. I send pull requests, not slide decks.

Steps for completing your project

After purchasing the project, send requirements so Sean can start the project.

Delivery time starts when Sean receives requirements from you.

Sean works on your project following the steps below.

Revisions may occur after the delivery date.

Review requirements and deliver API spec

Build API and deliver for review

Review the work, release payment, and leave feedback to Sean.