Hi there.

I'm Caesar Bimantara.

Full-Stack Developer · AI-Native Engineer

I ship AI-native products end-to-end.

Based in Indonesia. Async-first, remote-friendly.

Production SaaS, AI integrations, native Android, self-hosted infra.

Open to full-time, remote & freelance · Q3 2026
View workGet in touch
Caesar Bimantara
Selected Work

Built with intent.

Filter by category. Click a thumbnail to switch projects.

2026 — present · SaaS · Indonesian wedding market

Production

Marryio

My own SaaS for the Indonesian wedding market — conceived, built, and shipped as a solo founder. Three user roles (Client, Reseller, Superadmin) in one platform, twenty unique templates with their own motion, real Indonesian payment rails, and a Wedding Planner workspace on top.

0templates
0payments
0roles
2026year live
  • Built and shipped solo, end-to-end
  • Three user roles in one platform — Client, Reseller, Superadmin
  • Indonesian payment rails (QRIS, GoPay, VA, ShopeePay)
  • Reseller credit ledger with refund flows
  • Twenty templates, each with its own scene system and motion
  • Wedding Planner workspace with eight tabs and two-way timeline sync
Next.jsSupabaseTailwindGSAPMidtransCloudflare R2Upstash RedisResend
Visit liveRead case study

Click a project to view

Swipe to explore ↔

Upcoming

Next up.

Concepts and demos without polished details yet.

Public · GitHub demo

ETA · 2026

Millennial beauty brand landing for fictional 'Dewy Co.' — playful claymation visuals, nine-section product narrative, Indonesian-first conversion path. Repo public on GitHub; screenshot pending.

Get in touch →

Concept · 2026

ETA · 2026

Mobile-first vehicle marketplace for the Indonesian market — listing, discovery, and buyer-seller chat for how local buyers actually shop.

Get in touch →
About

Behind the code.

Bio

I'm Caesar Bimantara — a Computer Science graduate (S1 Teknik Informatika) who learned engineering by shipping, not by tutorial.

I started in 2023 building full-stack systems for local Indonesian businesses — a pharmacy chain, then a perfume retailer. Moved into remote engineering in 2025.

Since 2026, that's meant building Marryio — my own SaaS for the Indonesian wedding market, conceived, built, and shipped solo. Alongside it: an open-source kitchen ops dashboard for Indonesia's national school meals program, an omnichannel AI platform delivered to a Bali restaurant group, a West Sumatra hospitality showcase, a fully offline desktop tool built in Go, and a native Android app in development. All built solo, end-to-end.

Now I work as an AI-Native Engineer — wiring LLMs, agents, and RAG into production systems where they earn their keep. Real integrations on real products, not buzzword retrofits.

Based in Indonesia. Async-first, comfortable across timezones. Open to full-time roles, remote work, and freelance — startup, agency, or in-house.

Timeline

  1. 2026Career OS — offline job-search & lead tracker, built solo in Go
  2. 2026Channelflow — omnichannel AI ops platform, client delivery
  3. 2026MBG Dashboard v0.1.0 — Indonesian gov-tech, MIT open source
  4. 2026Marryio production — marryio.id live, multi-tenant SaaS
  5. 2026LandMarket — landing page for digital transformation services
  6. 2025Remote engineering · Data Entry.Coles
  7. 2024Full-stack developer · Azzwars Perfume
  8. 2023Full-stack developer · Apotik Medika Farma
  9. 2019–2023S1 Teknik Informatika

Toolbox

AI
  • LLM APIs
  • RAG
  • Agents
  • Mastra
  • OpenRouter
  • pgvector
AI dev
  • Claude Code
  • Codex
  • OpenCode
  • GLM
  • Kimi
Web
  • React
  • Next.js
  • Hono.js
  • Astro
  • TypeScript
  • Go
  • Tailwind
  • TanStack
  • GSAP
  • Tauri 2
  • Wails
Mobile
  • Kotlin
  • Jetpack Compose
  • Material 3
  • Hilt
  • Room
Data
  • PostgreSQL
  • Supabase
  • SQLite
  • Drizzle
  • Dexie
  • Redis
  • BullMQ
  • Socket.io
  • Zod
Ship
  • Docker
  • Vercel
  • Cloudflare
  • Coolify
Workspace
  • VS Code
  • Android Studio
  • Notion
  • Slack
Capabilities

The full stack, deployed.

Six areas. Tap any tile for the full toolbox.
Process

How we'll work together.

Five steps from first call to production handoff. Predictable, async-first, no surprises.
Writing

Notes from the build.

Read all writing

Contact

Let's build something together.

I reply within 48 hours. If it's a fit, we hop on a 30-min discovery call — no hard sell.

Other channels

GitHubgithub.com/Rimba-maker↗Instagram@ccbmantara↗
  • AI integration — LLMs, RAG, agents in production
  • Full-stack SaaS — design system to self-hosted infra
  • Full-time engineering roles — remote-first