Available for opportunities

Raditya WibhawaBackend Developer.

Backend Developer architecting scalable, enterprise-level applications with Java, Node.js, and Python.

Bandung, Indonesia
Portrait of IGD Raditya Wibhawa MN

01 / About

A bit about me

Results-driven Backend Developer with proven expertise in architecting scalable, enterprise-level applications using Java (Spring Boot, Quarkus), Node.js (NestJS), and Python (Flask). Skilled in designing RESTful APIs, implementing microservices architecture, and optimizing database performance to deliver robust and efficient backend solutions.

Backend services shipped
20+
RESTful APIs designed
50+
API performance gain
65%
Years of experience
2+

02 / Experience

Where I've worked

A timeline of roles where I've shipped backend systems for healthcare, government, and internal enterprise products.

  1. Java Software Engineer

    Mandiri Inhealth

    Current

    Feb 2026 — Present

    • Designed and implemented 15+ RESTful API endpoints for claim processing workflows including admission, daily monitoring, discharge, cancellation, and status updates for both inpatient and outpatient services.
    • Built complex business logic for claim status mapping and routing based on approval status codes with automated workflow orchestration.
    • Created 2 scheduled jobs using Quartz Scheduler for automated claim processing and document upload synchronization with configurable intervals — reducing manual intervention by 100%.
    • Built admission and periodic claim data enrichers to process healthcare claims with proper data type conversions and validation logic.
    • Implemented robust error handling for missing or invalid data scenarios in claim processing workflows, ensuring data integrity across admission and billing operations.
  2. Backend Developer

    Padepokan 79

    Oct 2023 — Jan 2026

    • Developed and maintained 20+ scalable backend services and microservices using Java (Spring Boot, Quarkus) and Node.js (NestJS, Express.js).
    • Engineered and documented 50+ RESTful APIs to ensure seamless and secure communication between frontend and backend systems.
    • Utilized SQL and NoSQL databases (PostgreSQL, SQL Server, Redis) for efficient data storage, retrieval, and caching — improving API performance up to 65%.
    • Managed CI/CD pipelines (Jenkins), monitored application health and logs on container platforms like OpenShift, and integrated message brokers (ActiveMQ) to support asynchronous operations.
  3. Backend Developer

    Jabar Digital Service (Padepokan 79 Vendor)

    Oct 2025 — Jan 2026

    • Built RESTful APIs for Generator Management System using Flask with MVC architecture. Developed 20+ endpoints with standardized response handling and Swagger documentation, delivered within a 3-month timeline.
    • Implemented JWT authentication with role-based access control (RBAC) for 4 user roles. Integrated bcrypt password hashing and Redis session management — reducing session management overhead by 60% versus database-based sessions.
    • Designed PostgreSQL database schema with SQLAlchemy ORM. Created 13+ data models with soft delete patterns, audit trails, and relational integrity, managing 100+ generator records across West Java.
    • Containerized application using Docker. Implemented system health monitoring and logging infrastructure for production deployment.

03 / Projects

Selected work

A selection of backend systems and APIs I've designed, built, and shipped.

Oct 2025 — Jan 2026

Generator & Solar Power Plant Mapping Dashboard

West Java / Jabar Digital Service

Web application to map generators and solar power plants across West Java. Features a dashboard for visual data analysis and an admin side for data handling.

Python 3.11FlaskPostgreSQLRedisDocker

Sep 2025 — Oct 2025

SIAP Jasindo — Agriculture Insurance Information System

Internal Project at Tujuh Sembilan

Digitalizes administrative activity supporting agricultural insurance for rice farming. Enables farmers and field officers to register, monitor policies, submit claims, and access e-policies through a paperless system.

  • Built backend & RESTful APIs for farmer and field officer workflows
  • Optimized services with Java 21 + Quarkus for scalability and performance
Java 21QuarkusMySQLJasperReportGitLab

Feb 2025 — Oct 2025

FEMA — FIF Employee Management Application

Internal Project at Tujuh Sembilan

Mobile-based application centralizing and streamlining employee service management via a reliable microservices backend.

  • Designed RESTful APIs for seamless mobile integration
  • Integrated ActiveMQ for asynchronous microservice communication
Java 11Spring BootPostgreSQLRedisActiveMQMicroservices

Jan 2025 — Feb 2025

EngageOne — 1-on-1 Meeting Booking App

Internal Project at Tujuh Sembilan

Web application enhancing 1-on-1 booking between Human Capital and talents, streamlining scheduling and communication.

TypeScriptNestJSPostgreSQLSwaggerGitLab

Jan 2024 — Jan 2025

Loan Origination System

Internal Project at Tujuh Sembilan

Streamlines the loan application process — users submit data forms processed through stages by different internal roles.

  • JWT-based authentication and authorization
  • MinIO integration for cloud file storage
Java 21Spring BootSQL ServerMinIOJWTGitLab

04 / Personal Project

Something I built on the side

Side projects are where I get to chase ideas just because they're interesting. This one started as a weekend itch and turned into a tool I actually use every day.

Personalcodename · docqa

SmartShape

A privacy-first desktop app I built so I can finally ask my own folder of documents real questions — and get answers I can actually trust.

SmartShape lives on your machine. Point it at a folder of PDFs, Word docs, Markdown, or plain text, and it quietly indexes everything in the background. From there you can chat with your library, jump straight to the exact paragraph an answer came from, and keep working without anything ever leaving your computer. It runs fully offline with Ollama, or with your own API key if you'd rather use a hosted model — your key stays in the OS keychain, not in some cloud database.

  • Ask questions and get answers with click-able citations that take you back to the source paragraph
  • Knowledge Graph in 3D to see how your documents and ideas connect
  • Turn any document into a slide deck or a podcast-style audio summary
  • Drop a file in your folder and SmartShape picks it up automatically — no re-indexing button to press
  • Fully offline mode with Ollama, or bring your own API key if you prefer
Tauri v2RustReactTypeScriptOllamaOS Keychain
Free · Privacy-first

Grab the installer below and try it on your own machine. Nothing leaves your computer unless you tell it to.

Download SmartShape
PlatformWindows · x64 · v0.1.0
Size11 MB
FileSmartShape_0.1.0_x64_en-US.msi

05 / Skills

What I work with

The languages, frameworks, and tools I reach for when building backend systems.

Backend

JavaSpring BootQuarkusNode.jsNestJSExpress.jsPythonFlask

Databases

PostgreSQLMySQLOracleSQL ServerMongoDBRedis

Tools & Methods

GitDockerJenkinsActiveMQKafkaMicroservicesOpenShiftSwagger

Soft Skills

CollaborationCommunicationTeamworkCuriosityAdaptable

06 / Education

Education & credentials

Education

Bachelor of Informatics

Telkom University

2018 — 2022

GPA · 3.25 / 4.00

Certifications
  • Oracle Foundation Associate Database Certification
  • BNSP Certified Senior Programmer
Courses
  • IBM Data Analytics with R and Excel
  • DeepLearning.AI TensorFlow Developer
  • IBM AI Engineering

07 / Contact

Let's build something

Open to backend roles, contract work, and collaborations. The fastest way to reach me is email.