01
Real-time AI
Volt
Built a low-latency voice pipeline across speech recognition, language models, and voice synthesis for live conversations.
Role
Architecture · Backend systems · Delivery
Core stack
Python / FastAPI / LiveKit / OpenAI / AWS
Senior full stack engineer
Jakarta · Available worldwide
Arthur Pello / Technical lead
I build the systems behind the promise.
Architecture, hands-on delivery, and calm technical leadership for software that has to perform under real pressure.
10+ yearsshipping production software
2 acquisitionsfrom platforms I helped scale
CTO experiencefrom roadmap to runtime
Operator profile / 001 Direct inquiry
Complex products. Clear decisions. Systems built to last.
Acquired
Bridestory → Tokopedia
Acquired
Schoters → Ruangguru
Real-time AI
Voice pipeline at Volt
CTO
Seasonal scale at Umroh.com
Selected systems
Four engagements where architecture, execution, and product pressure met.
Proof lives in what survived production.
02
Marketplace infrastructure
Umroh.com
Stabilized platform infrastructure for sharp seasonal demand in a high-trust travel marketplace.
Role
CTO · Platform · Team leadership
Core stack
PHP / Symfony / GCP / Microservices / Python
03
Marketplace at scale
Bridestory
Helped carry the product from MVP through regional scale to acquisition by Tokopedia.
Role
Architecture · Early platform build
Core stack
PHP / Laravel / Node.js / AWS / GCP
04
Education platform
Schoters
Improved platform performance and scalability through a period of rapid growth and acquisition.
Role
Architecture · Backend optimization
Core stack
Go / Node.js / PostgreSQL / Microservices
Open the project archive (11 additional engagements)
Active
SnapTally
AI-powered receipt scanning & expense tracker SaaS.
Active
HeyReplyMe
WhatsApp AI auto-reply SaaS for Indonesian SMBs.
Active
SprocketRocket
High-performance modular design system and page builder for HubSpot, developed at Lean Labs. Powering scalable marketing websites for enterprise clients.
Modernizing
ibudanayah.com
Indonesian parenting content platform.
Active
citysoul.id
Jakarta-based faith community platform for worship gatherings and charity events.
Active
javaunited.com
Launch website for Java United Football Club, introducing the club and connecting supporters with its growing social presence.
Delivered
MyPayFast
Australia-based wage-advance platform. Successfully delivered the production MVP for early customer validation.
Delivered
Huntstreet
Scalable full-stack features supporting high-traffic e-commerce workflows.
Delivered
Mujigae
F&B/Retail platform. Bridged the technical transition and architecture modernization during a critical growth phase.
Delivered
Uenafood
Online food ordering system with robust platform architecture.
Delivered
Enlight
CFO Services. Landing Page.
Operating model
Technical leadership without the theater.
I am most useful when momentum is real and the consequences are visible: a product must feel instant, infrastructure must survive demand, or an early architecture has reached its limit.
“Calm is not the absence of urgency. It is knowing what matters next.”
A practical sequence for consequential software work.
- 01
Diagnose
Find the real constraint before adding code. Align product pressure, technical risk, and the shortest credible path forward.
- 02
Build
Stay close to implementation. Architecture decisions are tested against production behavior, not presentation diagrams.
- 03
Transfer
Leave the team with clearer systems, stronger judgment, and software they can continue operating without dependency.
Hands-on
Backend platforms, AI workflows, customer-facing products, migrations, and the connective systems between them.
Leadership
Architecture direction, cross-functional planning, team clarity, and senior execution through difficult product transitions.
Technical range
Broad range. One standard.
Tools change. The standard does not: reduce complexity, protect the critical path, and leave each system easier to operate than I found it.
01
Backend
PHP · Laravel · Symfony · Python · FastAPI · Node.js · Express.js · Hono.js · NestJS
02
Frontend
Vue.js · Nuxt.js · React · Next.js · React Native · Astro · TypeScript
03
Infrastructure
AWS · GCP · Docker · Kubernetes · AWS ECS · Railway · Vercel
04
Databases
PostgreSQL · MySQL · Redis · Elasticsearch · Supabase
05
AI / ML
OpenAI · LangChain · STT-LLM-TTS · ElevenLabs · LiveKit
06
Streaming & Video
HLS · MP4 · Real-time Streaming · Video Processing
Start here
What is putting pressure on the product?
Tell me what you are building, where the system is straining, and what a useful outcome looks like. I will reply with a direct assessment of fit.
- Good fit
- New architecture, platform modernization, AI-heavy products, and technical leadership.
- Working mode
- Focused engagements with direct access, clear ownership, and visible outcomes.