Johanes Cristanto

Full Stack Engineer

Singapore, Singapore8 yrs 7 mos experience

Key Highlights

  • Led successful decentralized application projects raising over USD 6 million.
  • Developed innovative solutions bridging digital art and retail industries.
  • Implemented scalable mobile applications for Southeast Asia's leading Super App.
Stackforce AI infers this person is a Fintech and SaaS expert with strong full-stack development capabilities.

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Skills

Core Skills

BlockchainWeb3

Other Skills

Amazon Web Services (AWS)C#C++Cloud ComputingCocoaPodsEthereumGo (Programming Language)Google Cloud Platform (GCP)HTMLJavaJavaScriptLaravelLeadershipModel-view-viewmodel (MVVM)MongoDB

About

I have 3 years of building, leading, and managing remote team experience, and 8 years of hans-on full stack experience, ranging from blockchain, web, mobile development. Utilising modern stack technologies such as Solidity, Web3, React, Go Lang. 2 years mobile development experience using Swift RIBs architecture, and RxSwift, building a highly scalable mobile application for leading South East Asia's Supper App.

Experience

Paradex

Senior Fullstack Engineer

Sep 2024Present · 1 yr 6 mos · Singapore · On-site

Decentralised finance

Advisor

Apr 2024Aug 2024 · 4 mos

  • - Advised several DeFi projects across chains (EVM, Solana, Fuel), from planning to execution

The acemeta company

Chief Technology Officer

Apr 2023Apr 2024 · 1 yr · Singapore · Hybrid

  • The AceMeta Company, a leading provider of innovative solutions that bridge the gap between digital art(NFTs) and retail industries. Our cutting-edge approach, known as "Layer 2.5", leverages the power of blockchain technology to provide a seamless and secure pathway for these two industries to connect.
EthereumSolidityWeb3Blockchain

Leading decentralised launchpad platform

Chief Technology Officer

Dec 2021Mar 2023 · 1 yr 3 mos · Remote

  • Led, scaled, and expanded the international remote engineering team sustainably by defining the high standard of hiring criteria and thresholds; while making sure ramp up onboarding time as short as possible by having good product and engineering documentation.
  • Led product development, engineering and architecture of decentralised application with cross chain support under EVM for both smart contract and web app. Raised over USD 6 millions across 14 projects having one of the highest average ROI on the launchpad market.
  • Led product development and design with a user centric approach. We focused on the quality of the UI/UX to reduce the normally-high-learning-curve web3, to onboard as many people as we can to leverage web3 technology.
  • Designed & created a multi-chain blockchain ecosystem by integrating with several bridges, to leverage the functionality beyond one chain; Enabled a cross chain allocation launchpad with no token bridge in the process.
EthereumSolidityWeb3Blockchain

Grab

4 roles

Senior Software Engineer

Sep 2021Dec 2021 · 3 mos

Software Engineer, Mobile - iOS

Jul 2019Sep 2021 · 2 yrs 2 mos

  • Implemented a platform where users can explore available nearby merchants to increase merchant’s discoverability. Furthermore the ability to do advertisement & self funded promotion will help merchants to reach new customers which will unlock their full potential as well as reducing Grab promo cost.
  • Implemented apple sign in feature as a new social login method in Grab which has the ability to mask user’s email to increase user’s privacy experience.

Software Engineer, Full Stack - Consumer Experience

Jan 2019Jun 2019 · 5 mos

  • Reduced time to load home screen feed by 60% on iOS (from 38s to 15s on P95) by rewriting the whole stack and architecture (moved from webview to native and build backend from scratch) I was involved on end to end development from backend (including set up server on AWS, designed DB Scheme, and implemented API) and frontend (iOS) development.
  • Developed an end to end personalized Year In Review for users to reflect back on how they used the Grab app in the past year. The project timeline was only 2 weeks and it finished on time.

Software Engineer, Full Stack - Growth

Apr 2018Dec 2018 · 8 mos

  • Developed end to end (frontend to backend) experimentation platform called Grab daily which increased user’s engagement and became a key point to be a Super App. Due to its potential it was moved to the home screen of the Grab app, accessed by 8+ millions users every day with 300+ QPS. This platform enabled Grab to have a new revenue stream from ads.

Gii hok im tong

Full Stack Developer

Jan 2017Apr 2018 · 1 yr 3 mos · Bandung, West Java, Indonesia

  • Developed a cloud-based church management software for managing membership and events, with more than 4000 active users having various roles.
  • Implemented a web-based self-service portal that allows members to update their personal particulars, along with a review system to ensure data validity.
  • Developed an event ticketing system that allows multiple schedules on different venues with multiple ticket classes (e.g. VIP, Regular, etc).
  • Planned and built tools for migration membership data from a legacy relational DB (SQLBase) into MongoDB.

Education

Institut Teknologi Harapan Bangsa

Sarjana Teknik — Teknik Informatika

Jan 2014Jan 2017

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