This portfolio is structured as backend evidence rather than a simple gallery. The featured case studies below follow a STAR-style narrative and include architecture, API, security, deployment, and operational thinking.
Detailed case-study pages are available for the featured projects and include STAR documentation, architecture diagrams, ERDs, API examples, security notes, ADR references, and delivery lessons.
Digital finance and resident operations platform for transparent community management.
Built the product foundation for a digital finance and services ecosystem that helps housing clusters and neighborhood operators manage dues, resident data, introduction letters, reporting, and communication in one platform.
Digital finance platform work inside Amartha's inclusive financial ecosystem.
Architected and delivered a full e-wallet platform from scratch inside Amartha's broader digital finance ecosystem, with a strong focus on clean architecture, observability, migration safety, and reusable backend modules.
Claims management platform built from scratch with multi-tenant and infrastructure ownership.
Architected and developed a reimbursement SaaS product from scratch that aligns with Klaim.id's public positioning as a fast, customizable claims management platform connected with WhatsApp.
Interactive maps, integrated data sources, and operational reporting.
Drove redevelopment of internal maps data visualization with interactive features, integrated several data sources, and improved the cost and effort of existing implementation flows.
IoT-backed road operations platform with reporting and map interaction.
Developed new features for a road management platform, integrated GPS and IoT hardware data, migrated map rendering from Mapbox to LeafletJS, and improved database maintainability by moving from MySQL to MariaDB.
Modular upstream system integrating rainfall and IoT insights.
Built a modular system from scratch, integrated IoT and rainfall data streams, and developed recommendation algorithms for fertilizer usage based on dynamic environmental conditions.
Full ticketing system with infrastructure and observability improvements.
Designed and developed a ticketing system from scratch, researched Docker-based infrastructure, implemented monitoring for logs and metrics, and integrated with external suppliers and financial systems.
Business operations system with financial reporting and bank integrations.
Developed a back office system from partial completion to full deployment, adding financial reporting, banking API integrations, ticket support, CSR management, and product knowledge workflows.