Senior Software Engineer · Backend & Data Engineering
I design and ship enterprise systems that stay up, stay secure, and scale — for Indonesia's largest organizations.
Years across oil & gas, healthcare, aviation, and financial services. Backend, data engineering, and security are where I do my best work.
At a glance
Selected work
Oil & Gas 2024
An HSM-backed tokenization service that replaces sensitive values with secure tokens at scale, with encryption keys held inside Thales hardware.
Tokenized sensitive data at scale, with encryption keys secured in Thales HSM hardware.
Python FastAPI HSM (Thales) Encryption APIs
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Healthcare 2024
A migration platform with real-time change data capture that moved millions of healthcare records without losing a single row.
Millions of healthcare records migrated with zero data loss.
Python Apache Airflow Debezium SQL Server
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Aviation 2023–Present
An end-to-end HRMS for air traffic navigation personnel — performance analytics, multi-rater evaluations, and automated workflows — which I also rolled out through hands-on training.
Adopted across departments; delivered hands-on training to 101 professionals.
Python Django Vue.js PostgreSQL
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Oil & Gas 2019–2020
Contributed to an IoT monitoring platform covering more than 5,000 fuel stations nationwide, with real-time device monitoring and sales analytics.
Real-time monitoring across 5,000+ fuel stations nationwide.
React Apache NiFi SQL Server
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GovTech 2025
A web application that manages halal certification end to end, integrated with government BPJPH systems and driven by automated workflows.
Streamlined certification with government API integration and automated workflows.
Ruby on Rails PostgreSQL Sidekiq API Integration
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Products
Outside client work, I ship my own products and own all of it: product design, engineering, payments and operations. All of them are live and used by real people.
Personal finance Live
Money tracking as fast as sending a chat.
Type an expense, snap a receipt or send a voice note to WhatsApp, and Kantong turns it into a categorised transaction. Budgets follow your payday instead of the calendar month, forwarded bank emails are logged automatically, and an AI assistant answers questions like "where did my money go?" for you or your whole family.
Visit kantong.dramar.web.id
Wedding tech Live
Digital wedding invitations that also run the door on the day.
Couples choose from 49+ themes, including Sundanese, Batak, Minang, Javanese and Balinese adat designs, and send every guest a personal link over WhatsApp. On the day, ushers check guests in by scanning a QR code with their own phone, with no extra hardware.
Visit undangan.dramar.web.id
EdTech Live
CPNS exam practice that feels like the real BKN test.
A full SKD simulation with 110 questions in 100 minutes, using the same timer, navigation and flag-for-review flow as the official CAT. Scores come back instantly against the TWK, TIU and TKP passing thresholds, with explanations for every question and an AI tutor for the parts that still don't click.
Visit tryout.dramar.web.id
Music Live
Sing along to whatever the radio is playing.
Hold your phone toward the car speaker and ZapLyrics recognises the song, from FM radio, CarPlay or Android Auto, then scrolls the lyrics in time. No mic? Pick a station from the Radio Browser directory and it follows the station's now-playing info instead. Free, with no account.
Visit lyrics.dramar.web.id
Tools I've built
Small interactive calculators — a side of the work that's more hands-on and visual.
Explore the tools →