Justine Acosta
@KRAFT · GMT+8 ·

HOME / OVERVIEW

Software that keeps its promises.

Full-stack development, AI automation and workflow systems — built to keep running long after launch day.

Start a project See the work
DAILY DRIVERSTools I work with
  • React
  • TypeScript
  • Node.js
  • Python
  • PostgreSQL
  • Supabase
  • Docker
  • n8n
  • Figma
  • Claude
  • Next.js
  • Tailwind
  • FastAPI
  • Redis
  • MongoDB
  • Prisma
  • Vercel
  • Cloudflare
  • GitHub Actions
  • Git
  • LangChain
  • Hugging Face
  • Gemini
  • Zapier
  • Make
  • Stripe
  • Expo
  • GraphQL

Projects

Apps, workflows and internal tools built to remove one specific problem. Open a card to walk through the work.

About

How I work, and what I refuse to ship.

Animated pixel-art illustration of a developer workstation

Stack

The tools I build on daily, and the ones I'm still testing.

  • React
  • Node.js
  • PostgreSQL
  • Docker
  • Figma
  • Next.js
  • FastAPI
  • MongoDB
  • Vercel
  • GitHub Actions
  • LangChain
  • Gemini
  • Make
  • Expo
  • TypeScript
  • Python
  • Supabase
  • n8n
  • Claude
  • Tailwind
  • Redis
  • Prisma
  • Cloudflare
  • Git
  • Hugging Face
  • Zapier
  • Stripe
  • GraphQL
IN USEEXPERIMENTAL

Services

05
SCROLL FOR ALL FIVE
01 / 05
Full-Stack Web & SaaSProduct surfaces people use every day.BUILT TO LAST
02 / 05
AI Agents & RAGModels wired to your real data.GROUNDED
03 / 05
Automation & WorkflowsThe manual steps, removed.RUNS ITSELF
04 / 05
CRM, CMS & Internal ToolsThe admin your team stops dreading.TEAM READY
05 / 05
APIs & IntegrationsSystems that finally talk.TYPED

Badges

AWS Cloud Practitioner Essentials. HackerRank Software Engineer.