We design, build, and automate digital products — end to end, powered by AI.
DDD is a founder-led studio for founders and small teams who want senior-level design, development, and automation without hiring three people.
Product Design + Full-Stack Build
Startups and teams building a full product who don't want to coordinate a separate backend team
Figma design system, frontend build, backend and integrations, delivered as one complete working product
Frontend-only, handoff-ready delivery available for teams with their own backend.
Learn more →Automate & Augment
Existing businesses that want to cut manual, repetitive work
Workflow and agent automation built with Claude Code and modern AI tooling, layered onto tools you already use
Learn more →Merchant Payments & EDC Systems
Payment processors, banks, and fintechs building merchant-facing payment apps, EDC/terminal management portals, or cashier systems
UI/UX and frontend build for payment flows, TMS agent portals, and EDC-integrated apps — shipped in production for a national bank and two payment platforms
Learn more →Field Service Automation
Field service and dispatch businesses (home services, maintenance, logistics) losing hours to manual scheduling and status-chasing
AI-assisted job intake, triage, and dispatch routing that plugs into your existing dispatch board — grounded in a field-ops Android rebuild we shipped for Sentra Service
Learn more →Featured work
See all work
BTN
EDC Cashier Payment App
Payment app UI/UX for cashiers, integrated with banks and e-wallets.
Read the case study
Payment2Go
EDC TMS Portal
Redesigned agent portal supporting Ingenico, Sunmi, Verifone, and more EDC devices.
Read the case study
PT Global Sentra Teknologi
Merchant Web & Mobile App
QR payment, transaction history, and terminal management for merchants.
Read the case study
PT Global Sentra Teknologi
Company Profile Website
Redesigned company profile website for payment2go.co.id, refreshed with a modern look and easier access for visitors.
Read the case study
Sentra Service
Field Management System
Simplified an Android field-ops app, cutting load times and task complexity.
Read the case study
PT CNA Innilabs Indonesia
Food Issue
Food discovery and ordering platform, designed and built with AI-augmented tooling.
Read the case studyAbout DDD
Primadika Dwijantara — Founder, DDD
I started DDD after several years designing and building payment and field-ops products inside other people's teams — watching good ideas get slowed down by handoffs, meetings, and headcount. DDD is the answer: one operator, senior-level across design and code, augmented by AI tooling that used to require a team of three.
That's shipped real products: payment and EDC apps for BTN and Payment2Go, a merchant platform for PT Global Sentra Teknologi, a field-service rebuild for Sentra Service, and a consumer ordering app for Food Issue — covering UI/UX, frontend, backend, and Android, end to end.
Engagements start with a call to scope the real problem, then move fast: Figma prototypes reviewed early, a working build you can click through within days (not months), and direct access to me throughout — no account manager between you and the person doing the work.