Engineering studio · Jakarta

We build the backend so you can ship the product.

A three-person engineering studio behind CRUD Builder and its CMS — a self-hosted dynamic backend that turns a schema into a working API and admin panel.

See the productsMeet the founder
cms.aster-tech-indo.me/schemas
Schema manager listing tables
Field list of the team_members schema
Relation builder linking to products
Image field with an uploaded photo and its URL
Visual flow editor
Scheduler with recurring flow sweeps and cleanups
Access page with a partner and its key and grant controls
Workspaces list, each on its own PostgreSQL schema

01 / 08 · Schemas

Every table becomes a live REST API.

Reagent SandraFounder

Reagent Sandra

Founder & Owner

Roles
10
Certificates
10
Skills
37
LinkedIn

Founder

Software engineer from Jakarta who has built banking systems, run DevOps and delivered enterprise integrations, from a loan management system for Bank Negara Indonesia to IBM App Connect enablement. I founded Aster Tech Indo to build CRUD Builder and its CMS, so teams can go from schema to production faster.

Journey

Skills

Backend

  • Golang
  • Gin
  • GORM
  • Core Java
  • Spring Boot
  • Maven
  • JBoss EAP
  • Liquibase
  • Laravel
  • PHP

Frontend

  • Next.js
  • TypeScript
  • React.js
  • Tailwind CSS

Data & messaging

  • MongoDB
  • Redis
  • Redis Cluster
  • Confluent
  • ksqlDB
  • Confluent Tiered Storage

DevOps & cloud

  • Docker
  • Linux
  • Nginx (reverse proxy)
  • Jenkins
  • Ansible
  • CI/CD
  • Red Hat
  • Microsoft Azure
  • Google Cloud Platform
  • Infrastructure
  • Log Analysis

Integration & low-code

  • IBM App Connect Enterprise
  • IBM System i
  • AppSheet

Practice

  • Unit Testing
  • IT Consulting
  • Service Operation

Soft skills

  • Communication
  • Leadership
  • Problem Solving
  • Creative Problem Solving
  • Analytical Skills
  • Problem Analysis

Achievements

  • GPA 3.59 / 4.00 — Computer ScienceBINUS University
  • I/O Webdev National Competition
  • Scholarship bootcamps — mostly with Hacktiv8Digitalent Scholarship, Kementerian Komunikasi dan Informatika RI
  • Hackathon — BNCC Elite TeamBina Nusantara Computer Club
  • Gamebooth Indonesia exhibitor — “Udin's Nightmare”BINUS Game Development Club · 2021

Two products, one engine.

CRUD Builder is the backend. The CMS is the panel on top of it. Together they power this very page.

  1. CMS
  2. CRUD Builder
  3. This website
POST /api/products/search200 OK
{ "limit": 2 }  →
{  "code": 200,  "data": [    {      "name": "CRUD Builder",      "summary": "Define a schema, get a production API."    },    {      "name": "CMS",      "summary": "The admin panel your client can actually use."    }  ],  "total_data": 2}

CRUD Builder

Define a schema, get a production API.

A dynamic backend engine: schemas hot-reload into REST endpoints with search, bulk create, soft delete and restore. Flows, a job scheduler, multi-tenant workspaces and import/export bundles are built in.

  • Schema manager
  • Runtime CRUD
  • Flows
  • Scheduler
  • Multi-tenant
  • Import / Export
crud-builder-demo.aster-tech-indo.meAPI docs
CMS screenshot

CMS

The admin panel your client can actually use.

A self-hosted CMS powered by CRUD Builder. Manage schemas, roles, permissions and data in one place — this website is edited from it.

  • Schemas
  • Roles & RBAC
  • Permissions
  • Data management
cms.aster-tech-indo.meRequest a demo

Schema in. API and page out.

Edit the schema on the left. The API response and the rendered card update instantly — exactly how a CMS change reaches this site.

01Schemaproducts
02API response200
{
  "code": 200,
  "data": [
    {
      "id": "a1f3…",
      "cover": null,
      "title": "Spring catalogue",
      "price": 129000,
      "is_active": true
    }
  ]
}
03Rendered<Card />
Image goes here

Spring catalogue

price
129,000
is_active
Yes

Three people. The whole stack.

Select a person to see their experience, skills and achievements.

Shipped work.

Projects delivered with our stack, maintained in the CMS.

Shipped · 2025

Irennie — Art Studio website

Irennie (lila & co.)

Website for an illustration and art-class studio: portfolio of digital illustrations, art class listings, project gallery, about page and a contact form.

  • Next.js
  • Portfolio
  • Art classes
Visit irennieart.com
irennieart.com
Irennie — Art Studio website — Home