Darmawan Zulkifli

1. Mar 2024 — Present

   Sydney, NSW (remote)

   Software Engineer

   /

   Alexys International

   • Currently integrating Aptus Aware with Aptus Concierge, including its AI integration.
   • Implement features, fixes and backend services for the Aptus Aware mobile app.
   • Built a proof-of-concept on Matrix.org and reviewed and migrated backend code onto it.
   • Extended location-aware features: automatic presence, hunt-group routing and nurse-call configuration.
   • Own release hygiene end to end — version control, testing to standard, releases, and issue tracking.

   • Flutter
   • Matrix.org
   • Node.js
   • AI integration

2. Mar 2022 — Mar 2024

   Singapore

   Software Engineer

   /

   Undercurrent Capital

   • Developed and managed the Algorai Admin platform, ensuring robust functionality and user-friendly interfaces.
   • Integrated Algorai with the Algorand blockchain using the official SDK.
   • Built decentralised applications on Algorand — React front ends over smart-contract backends — enabling on-chain trading and asset management.
   • Implemented trading: DEX integrations, order matching, limit and market orders, and liquidity pools using Algorand atomic transfers.
   • Developed 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 — oracle price feeds, transaction batching, and reduced confirmation times.

   • Golang
   • React
   • MongoDB
   • Algorand
   • Smart contracts

3. Mar 2021 — Mar 2022

   Bali · Lombok · Sweden

   Software Engineer

   /

   Dua Digital

   • Spearheaded project planning and estimation, effectively catering to a predominantly European clientele.
   • 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.

   • Flutter
   • Golang
   • Node.js

4. Feb 2021 — Aug 2021

   Jakarta, Indonesia

   Software Engineer

   /

   Castellum Digital Indonesia

   • Deployed and maintained the DHIS2 health information system with HISP Indonesia.
   • Optimised queries for external processes and maintained database performance.

   • DHIS2
   • PostgreSQL

5. May 2020 — Jul 2021

   Jakarta, Indonesia

   Software Engineering Team Lead

   /

   PT Citra Digital Lintas

   • Led product maintenance and the delivery of innovative features.
   • Engaged with clients for strategic feature planning and accurate estimation.
   • Oversaw application releases and deployment to staging/production environments.

   • Golang
   • React
   • Flutter

6. Mar 2019 — May 2020

   Jakarta, Indonesia

   Software Engineer

   /

   PT Citra Digital Lintas

   • Golang
   • React

7. Jan 2018 — Mar 2019

   West Nusa Tenggara, Indonesia

   Software Engineer

   /

   Lumbung Inovasi

8. Jun 2017 — Aug 2018

   Mataram, Indonesia

   Fullstack Developer

   /

   Sol Interactive

• 01 2024—

  Aptus Aware

  Clinical communications for care teams — nurse call, presence and hunt-group routing on staff mobiles.

  • Flutter
  • Node.js
  • Matrix.org
• 02 2022—2024

  Algorai Finance

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

  • Golang
  • React
  • MongoDB
• 03 2025

  Tapp Exchange

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

  • Rust
  • Golang
  • React

beacon_broadcast (Dart, fork) · ws-wrapper (Go) · toldata (Go, fork) · xlsx_utilities (Go) · matrix-dart-sdk (Dart, fork) · jspdf-generator (TypeScript)

04 — Technical skills

Languages

Go · Rust · TypeScript · Dart · JavaScript · SQL

Backend

gRPC · Protobuf · Kafka · NATS · RabbitMQ · Matrix.org · REST

Frontend

React · Next.js · Flutter · React Native · Astro · Tailwind

Data

PostgreSQL · MongoDB · Redis · Firestore

Platform

Docker · Kubernetes · Linux · Bash · GCP · AWS

Chains

Algorand · Aptos · Story Protocol

AI

LLM integration · Voice agents · On-prem inference

Embedded

ESP32 · Microcontrollers

05 — Community & teaching

• Feb 2018 — Aug 2019

  West Nusa Tenggara, Indonesia

  DSC Lead

  /

  Developer Student Club

  A Google community programme for Indonesian university students. Selected as a DSC Lead directly by the programme manager.

• Mataram, Indonesia

  Lead, Linux Community

  /

  Universitas Bumigora

  Ran the university Linux user community.

• Jan 2017 — Jun 2018

  Mataram, Indonesia

  Lecture Assistant

  /

  Universitas Bumigora

06 — Education

• 2015 — 2019

  Bachelor of Engineering (BE), Computer Engineering

  Universitas Bumigora

• Certification

  Kotlin for Android — Beginner to Advanced