Projects

Selected work and engineering case studies.

Each project page focuses on product context, system architecture, implementation choices, and trade-offs.

2024 - Present Full-Stack Engineer

Jalintraksi

Creator monetization platform for memberships, premium content, donations, and personalized creator pages.

Supported a platform serving 500+ creators with livestream monetization, memberships, and premium content distribution
Built a tiered subscription system that grew recurring revenue from around IDR 1M to IDR 18M
Helped operate a system handling 1,000+ transactions per month with improved observability and lower infrastructure cost

2025 Full-Stack Engineer

Gym operations platform for member onboarding, subscriptions, invoicing, trainer scheduling, and QR-based access control.

Replaced manual admin work with one system for 10+ staff users and active members
Automated subscription validation, invoicing, payment tracking, and role-based access control
Reliably handled 100+ transactions per month on a self-managed VPS deployment

2025 iOS Engineer

Privacy-first iPhone wellness app for mood tracking, journaling, gentle goals, breathing exercises, and daily self-care routines.

Shipped an iPhone wellness app that combines mood check-ins, journaling, and guided breathing in one experience
Brought goals, reminders, sleep and cycle tracking, and emergency contact access into a single self-care product
Published the app on the App Store with a privacy-first positioning for personal wellness data

2024 Full-Stack Engineer

Bilingual forestry consulting website built with Astro and Strapi CMS to present services, expertise, and sustainable forest management capabilities.

Delivered a bilingual company website for forestry and environmental consulting services
Structured service, team, project experience, and Q&A content in a CMS for easier updates
Supported a clearer digital presence for sustainable forestry, carbon planning, and geospatial service offerings

2024 Full-Stack Engineer

Modern gym website with membership flows and an AI advisor for personalized workout and nutrition guidance.

Delivered a responsive site for services, schedules, and membership discovery
Added an AI advisor for personalized workout routines and nutrition planning
Improved membership retention by 30% through a more useful and engaging experience

2023 - 2024 Backend Engineer

Backend systems for emissions management, forest project operations, NGO monitoring, and ESG contribution flows.

Built backend systems for greenhouse gas calculation, target setting, and emissions offset workflows
Developed forest project and planted-tree monitoring systems for companies and NGO stakeholders
Added API-key contribution flows, payment integration, containerized deployment, and CI/CD automation

2023 - 2024 Backend Engineer

Backend platform work for user onboarding, KYC, CRM workflows, payments, and trading-system features.

Implemented backend services for user registration, KYC verification, file storage, email delivery, and payments
Delivered a CRM application for marketing workflows including demographic analysis and newsletter targeting
Contributed backend features for a trading system using QuestDB, Redis, and socket.io

2023 Full-Stack Engineer

Geospatial analytics platform combining ETL workflows and an interactive dashboard for business decision-making.

Built ETL tooling to collect, transform, and load structured geospatial datasets
Delivered a React dashboard that made spatial analysis easier for business users to explore
Enabled faster decision-making with one system for data processing, querying, and visualization

2023 Backend Engineer

Backend system for property tokenization operations covering asset management, transactions, dividends, affiliation, and KYC flows.

Built backend operations for property tokenization across asset, user, transaction, and dividend workflows
Supported affiliation and KYC processes needed for regulated user onboarding and platform participation
Centralized business logic for tokenized property operations into one backend system