Bekasi, Indonesia · WIB (UTC+7)
Hafiz Adha Febrian
Java & Spring Boot, TypeScript & LoopBack 4, and PostgreSQL. Currently a Full Stack Programmer at PT Techno International Mandira, building SIMPeL4 for the Ombudsman of the Republic of Indonesia.
Open To Work
An internship project at PT Indonesia Indicator that became my undergraduate thesis: encrypting employee ID numbers, tax IDs, family card numbers and addresses inside PostgreSQL with pgcrypto, then comparing Blowfish and AES-256 on response time.
Read more →PT Techno International Mandira
Rejoined PT Techno International Mandira, assigned to the SIMPeL4 application project for the Ombudsman of the Republic of Indonesia.
Spring Boot · LoopBack 4 · PostgreSQL
PT Techno International Mandira
Built and maintained 4 backend services for SIMPeL4 (Ombudsman RI), JasperReports reporting modules, and Swagger REST API documentation. Contributed to an AI Business Intelligence chatbot PoC on AWS for BPJS Ketenagakerjaan.
LoopBack 4 · Spring Boot · PostgreSQL · MyBatis · JasperReports · Docker · GitLab
Alibaba Cloud Indonesia · GoTo · Komdigi
Built the backend of the ai-nutrition prototype with a team of 4 in 48 hours.
Alibaba Cloud · Qwen LLM · SahabatAI LLM · PAI · RDS · ECS
PT Indonesia Indicator
Built Spring Boot REST APIs for an HR system with PostgreSQL column-level encryption (pgcrypto, AES-256, Blowfish, RSA), plus a Scrapy web scraping engine integrated with Apache Kafka.
Java · Spring Boot · PostgreSQL · Python · Scrapy · Kafka
PT Indonesia Indicator
Built Spring Boot REST APIs with OAuth 2.0/OpenID Connect SSO and third-party IAM, including logging, unit and integration tests, and OpenAPI documentation.
Java · Spring Boot · OAuth 2.0 · OIDC · JUnit5 · Mockito · Swagger
Built Spring Boot REST APIs for an HR system with PostgreSQL column-level encryption (pgcrypto, AES-256, Blowfish, RSA), plus a Scrapy web scraping engine integrated with Apache Kafka.
Built Spring Boot REST APIs with OAuth 2.0/OpenID Connect SSO and third-party IAM, including logging, unit and integration tests, and OpenAPI documentation.
An AI prototype in the food space for the GoTo ecosystem. I owned the backend and the integration of Qwen LLM, SahabatAI LLM, PAI, Model Studio, RDS and ECS.
A web scraping engine built with Scrapy (Python) that streams its results through Apache Kafka.
A collaborative proof of concept for an AI-powered Business Intelligence chatbot on AWS.
Universitas Teknologi Digital Indonesia, Yogyakarta
Thesis: Implementing Column-Level Database Encryption in an Employee Data Microservice (Case Study: PT Indonesia Indicator).
Want to talk backend, collaboration, or future opportunities? The fastest way to reach me is by email or LinkedIn.