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JOTARA LAB // SOFTWARE STUDIO & R&D · MALANG

High-Performance Business Engines.
POS, Warehouse Sync & Private AI.

We design and ship mission-critical operational systems: offline-first POS, real-time multi-warehouse inventory sync, and private AI pipelines. Built for speed and resilience, with direct access to senior engineers and zero procurement friction.

✓0% Stock Mismatch & Offline-First POS
✓Private AI & 100% Data Sovereignty
✓Direct Senior Engineers (No Bureaucracy)
LIVE DEMO

Your business, running itself: even at midnight.

See how we automate replies, orders, stock, and invoices, so you can focus on growing.

Choose the scenario that best reflects your operations, then compare Before and After when daily workflows run automatically.

Flash Sale 12.12 · 00:00 Starts in 00:00:03
0
orders/min
🖨 0 shipping labels printed
Hoodie L stock: synced across channels
Shopee
60
Tokopedia
60
TikTok Shop
60
Instagram
60
WhatsApp
60
Chat auto-replies
 

How much time could you save?

±87
hours/month saved
±Rp 2.610.000
staff cost saved/month

Estimate: 26 working days, Rp 30.000/hour staff baseline (~Rp 5.2M/month fully loaded operational cost).

Technical Pillars

Built for Stability, Intelligence, and Scale.

Five core engineering disciplines power our operational engines, distributed backends, and private AI pipelines.

PILLAR // 01 // EDGE_SYNC_CDC

Core Business Engines & Operational Systems

Deep Dive Assessment

We engineer custom mission-critical business engines tailored to complex operational workflows. By integrating offline-resilient edge POS clients with real-time multi-warehouse inventory synchronization, double-entry financial ledgers, and conflict-free change data capture (CDC), we eliminate inventory mismatches and transaction discrepancies. Our systems guarantee continuous business continuity even during complete network partitions, automatically reconciling ledgers upon reconnection.

Key Capabilities & Objectives
POS & Multi-Warehouse Real-Time Sync
Offline-Resilient Edge & Desktop POS
Automated Double-Entry Financial Ledgers
Zero Discrepancy Change Data Capture
Core Tech Stack
GoSQLite/PostgreSQLRedisChange Data Capture (CDC)NATS.ioElectron/TauriTypeScript
ISOLATION OFFLINE EDGE // HYBRID CLOUD
AUDIT POSTURE ZERO MISMATCH AUDIT
TELEMETRY 0% MISMATCH // REAL-TIME
// CORE CAPABILITIES All 5 pillars can be deployed incrementally or as a unified production platform.
Explore What We Build →
Active Lab Projects

Experiments You Can Touch.

Two working prototypes from our R&D. Both run real logic in your browser: click around, try to break them.

Try them directly in your browser — no form, no login. Two interactive simulations demonstrating how we solve operational bottlenecks in the field.

[BENCH_01: OFFLINE_FIRST_POS]

Offline-first POS

outbox + HLC + idempotent replay
Cashier 1 0 queued
Cashier 2 0 queued
LINK UP · sales go straight to server
Cloud server · authoritative stock
Kopi Susu ×5Roti Bakar ×3Air Mineral ×8
Sync log
  1. Ring up a sale, then cut the internet.
Sales recorded 0 Rp 0
Lost revenue Rp 0
Backorders flagged 0

Same store, same outage. Online-only loses the sale at the register; offline-first queues it locally and reconciles on reconnect. Conflicts are flagged, never silently dropped.

[BENCH_02: PII_REDACTION_LAYER]

PII Redaction Before the LLM

pattern + checksum · in-browser
LOAD:
1. Outbound prompt → external model sanitized at perimeter
Hi team, this is Rina ordering 2 pastry boxes for Saturday. Please deliver to Jl. Kemang Raya No. 12, reach me on WhatsApp at [PHONE_1] or email [EMAIL_1]. National ID (NIK) for tax invoice: [NIK_1]. BCA acct [ACCOUNT_1] under Rina.
Local vault · stays in your network
  • [PHONE_1] 0812••••7890
  • [EMAIL_1] r•••@gmail.com
  • [NIK_1] 3174••••0003
  • [ACCOUNT_1] 5240••••2811
2. Model response (untrusted LLM) zero PII exposed
Thanks, request received. Identity verified against [NIK_1]. Our team will call [PHONE_1] to confirm. A receipt goes to [EMAIL_1]. The transfer will be sent to [ACCOUNT_1].

The external model only sees and returns anonymous token IDs.

Private vault rehydration · inside your secure network
3. Delivered to customer client-facing delivery
Thanks, request received. Identity verified against 3174051205900003. Our team will call 0812-3456-7890 to confirm. A receipt goes to rina.wijaya@gmail.com. The transfer will be sent to 5240392811.

Tokens are swapped back to real values locally before rendering to customer.

Entities found 4 PHONE×1 · EMAIL×1 · NIK×1 · ACCOUNT×1
PII seen by model 0 0 of 61 chars exposed

Runs entirely in your browser; nothing is transmitted. Prompts are tokenized at your boundary, the model operates solely on anonymous tokens, and real values are rehydrated in-memory before reaching the user. Production pipelines add NER for names and addresses.

Want to benchmark your own infrastructure? Run the Interactive Architecture Risk Diagnostic →

Start a Project / Consultation

Consult Your System Architecture.

We scope and build everything from POS and multi-warehouse sync to private AI and cloud platforms. You work directly with our senior engineers, without procurement bureaucracy.

What to expect
  • Direct engineering contact
  • Async-friendly technical scoping
  • No procurement gatekeeping
Fast-Track ConsultationDirect Lead Channel

Need a quick discussion?

Message an engineer on WhatsApp or book a 30-minute technical scoping call.

Start a Project / Architecture Intake

Technical Scoping Intake

SLA < 24H
System Focus & Architecture Preference (choose at least one)
● Mutual NDA & data confidentiality protected from day zero.