Rafi Zadanly.

Backend-leaning full-stack engineer building web products and the services behind them.

Conceptual illustration of the Single Sign-On architecture. — Single Sign-On

ArchFlow realtime architecture workspace. — ArchFlow

Software, in practice.

Shared authentication, service routing, and ERP-connected commerce.

Full-stack Engineer / Internal

Single Sign-On

Challenge: Give internal applications shared sign-in, configurable redirect destinations, and role-based access control.
My contribution: Built the Next.js frontend and Fastify backend from scratch in TypeScript.
Result: Registered applications share authentication and access controls, with a documented flow to exchange redirect tokens for application JWTs.

Next.js
Fastify
TypeScript

Case study

Full-stack Engineer / Internal

API Gateway

Challenge: Connect applications to internal services without tying clients to each service.
My contribution: Implemented and maintained token/access checks, request validation, and routing rules for internal services.
Result: Clients reach backend services through one API entry point with shared access checks.

Next.js
Fastify
PostgreSQL

Case study

Full-stack Engineer / Live

Indoteknik

Challenge: Replace the legacy online store without losing its connection to ERP product and stock data.
My contribution: Led the Next.js migration and maintained the APIs connecting the store to Odoo.
Result: The store supports product search and ERP stock updates, with caching to reduce direct ERP requests.

Next.js
Odoo ERP
PostgreSQL

Case study

View all projects

Inside the system.

Why the Indoteknik rebuild separates browsing, search, and ERP updates.

Choose a layer to see the decision and trade-off.A simplified model of the work, not a deployment diagram.

Custom Odoo API

Storefront API

Product pages need access to prices, stock, and orders without holding those rules themselves.

Decision

Use a custom Odoo API between the storefront and ERP.

Trade-off

Storefront changes must still work with the API that Odoo provides.

Case study

Interfaces meet infrastructure.

I’m based in Jakarta, Indonesia. I like working on the connections between what people see in a product and the systems a business uses to run it.

Beyond the featured work

Internal operational tools: Backend services for internal tools and data processing.PT. Spasi Indonesia
Procurement workflows: Hospital purchasing and approvals · ongoing.Asian Technology Solutions · Mayapada Hospital Group

Experience

My roles and responsibilities.

Jun 2026 - Present

Asian Technology Solutions

Full-Stack Engineer

Implemented approved procurement changes in Odoo 16 while assigned through Asian Technology Solutions to Mayapada Healthcare Group.

Maintained existing Python jobs in Apache Airflow that generate Purchase Requests (Auto-PR) from replenishment/orderpoint suggestions.
Removed RFQ logic and supplier dependencies from Auto-PR, including obsolete filtering, sorting, and fields; updated execution summaries for PR-only processing.
Reviewed scheduler dependencies and preserved existing Airflow/DAG references while refactoring the flow.
Implemented Odoo models, views, fields, purchasing logic, and predefined procurement-request approval steps.
Maintained internal eProc documentation with Next.js, Fumadocs, and Markdown/MDX; validated converted content and corrected table rendering.

May 2024 - Jun 2026

PT. Spasi Indonesia

Full-Stack Engineer

Built an SSO platform from scratch and implemented and maintained API Gateway services for internal applications, covering authentication, access control, routing, and integration documentation.

Implemented and maintained API Gateway token/access checks, request validation, and routing rules for internal services.
Built SSO from scratch in Next.js/Fastify with TypeScript: application registration, redirects, SSO/application RBAC, and token issuance, management, flushing, and revocation.
Built and maintained Python crawling workflows with RabbitMQ for asynchronous news ingestion.
Developed backend services for internal tools and data processing.
Set up Next.js routing, caching, and containerized deployments.
Documented APIs and version changes, plus Swagger/Scalar SSO integration: stored application tokens enable redirect-token-to-JWT exchange.

Jan 2022 - May 2024