Angelo Sinday full stack developer building with AI

Stack: React

Ready when you are

Let’s build something worth launching.

Your vision, shaped into a polished digital product—from first idea to launch day.

Tell me about your project

Product Work

Products built end-to-end.

Designed, architected, and shipped solo — from database schema to UI polish. Case studies included.

AI capability / evidence log / systems operational

Not AI demos. Working systems.

I design and ship customer-facing assistants, product intelligence, and automated workflows—then connect them to the real products and operations they need to improve.

CASE_01 // GYAN HERMES

From a visitor's question to a qualified conversation.

A context-aware portfolio assistant grounded in real project data. It answers within defined guardrails, guides visitors toward relevant work, and routes genuine inquiries directly to me.

  • Grounded answers Responds from verified portfolio context
  • Built-in guardrails Protected scope, rate limits, and safe fallbacks
  • Lead routing Turns serious interest into an actionable inquiry

SYSTEM_02 // CLIENT OPERATIONS

The handoffs happen without the copy-paste.

Connected workflows that move information between the tools a business already uses, reducing repetitive work around quotes, notifications, and back-office operations.

  • API integrations Connects existing products and services
  • Notifications Routes useful updates to the right destination
  • Workflow automation Removes repeatable manual handoffs

SYSTEM_03 // WORDPRESS OPERATIONS

A content workflow built to publish—and perform.

AI-supported content operations paired with the technical SEO, on-page improvements, and performance maintenance required to make the published work useful.

  • Content operations Supports repeatable research and publishing
  • Technical SEO Improves crawlability and on-page foundations
  • Performance care Maintains the WordPress experience behind the content

Client Work

Sites shipped for real businesses.

Consumer brands and service businesses — WordPress builds I develop, optimize, and maintain. Each one streams through the scanner, compiling from source into the live site.

Why hire me

Problems solved. Businesses running better.

Business owners bring me the thing that’s slowing them down. Hiring managers get someone who owns it from database to UI.

01 · Riverry Studio · Order system

The whole studio now runs from one app.

Problem
Orders, artists, proofs and shipping spread across an ageing backend and a separate app.
Built
One Next.js order system: customer app, staff workspaces, two quality gates. Migrated to Postgres without stopping orders.
Read the case study

02 · Churv · My own product

A one-school idea became a campus network.

Problem
A complete social product — feed, chat, onboarding, moderation — with no team behind it.
Built
Designed and built solo: codename posts, school feeds, realtime chat and an admin panel.
Read the case study

Next

Want the full story?

Experience, skills, client testimonials — and two ways to reach me.

Or email me directly — angelosinday.dev@gmail.com