Darmawan Zulkifli

• Product champion for Aptus Aware, responsible for what the product should be, not only for how it gets built.
• Built the Matrix.org proof of concept for the messaging backend, then reviewed and migrated backend code onto it.
• Extended location-aware presence, hunt-group routing and nurse-call configuration across both organisation-managed and personal handsets.
• Own the integration of Aptus Aware with Aptus Concierge, including its AI layer.
• Build features, fixes and backend services for the mobile product.
• Own release hygiene end to end, covering version control, testing to standard, releases, and issue tracking.

• Built and ran the Algorai Admin platform, the operational surface for configuring products, monitoring positions and reconciling on-chain state.
• Owned the reconciliation seam between on-chain state and the application store, so the chain and the database that recorded it could not silently drift apart.
• Integrated Algorai with the Algorand blockchain using the official SDK.
• Built the Go REST services behind the platform on Gin and gorilla/mux, layered along SOLID lines. Thin HTTP handlers, business logic in services behind interfaces, and MongoDB access in repositories, so each layer could be tested and replaced on its own.
• Built decentralised applications on Algorand, with React front ends over smart-contract backends, enabling on-chain trading and asset management.
• Built the trading machinery: DEX integrations, order matching, limit and market orders, and liquidity pools using Algorand atomic transfers.
• Built cross-chain bridges and integrations (Ethereum, Solana, Polygon) so users could swap assets across networks while minimising slippage.
• Designed secure wallet connections (Pera Wallet, MyAlgo) for transaction signing, staking and real-time trading.
• Optimised for high-frequency trading, with oracle price feeds, transaction batching, and reduced confirmation times.

• Spearheaded project planning and estimation, effectively catering to a predominantly European clientele.
• Built Kupongfia, a Swedish grocery-deals app, with React Native for cross-platform delivery.
• Engineered robust systems tailored to client specifications using Flutter for cross-platform delivery (web, Android, iOS).
• Developed high-performance backend services leveraging Golang and Node.js.

• Built a COVID-19 contact-tracing app with React Native.
• Deployed and maintained the DHIS2 health information system with HISP Indonesia.
• Optimised queries for external processes and maintained database performance.

• Led feature delivery and product maintenance across enterprise and government office-automation products.
• Worked directly with clients on feature planning and estimation, translating ambiguous requirements into scoped work.
• Owned application releases and deployment into staging and production environments.

• Talked to clients directly to understand what they actually needed, then translated it into product requirements the team could work from.
• Delivered project-based software from requirements through to a working product.

• Built and maintained full-stack web applications.
• Installed and set up CCTV systems for clients.
• Managed servers and handled networking setup and maintenance.

Clinical communications for care teams — moving nurse call, presence and escalation off the wall panel and onto the handsets staff already carry.

An on-chain finance platform on Algorand — bringing structured financial products to retail, not just institutions.

A community-driven decentralised exchange for the Aptos ecosystem, powered by a self-optimising ve(3,3) model.