張泰瑋 CHANG, TAI-WEI

:https://tw.linkedin.com/in/chang-tai-wei-644925139  : https://all-weather-protocol.on.fleek.co/
: https://github.com/david30907d
Founder of All Weather Protocol 🚀 Click Once, Farm the Best Forever! 🛡️
  • Management Experience
    • PyconTW: Lead data team with 7 members and do monthly 1-on-1
    • Dcard: Lead a four person team to do data labeling
  • Skill Set
    • Python, Node.js, Golang, Solidity
    • Airflow, Spark, ElasticSearch
    • Kubernetes, Terraform
    • Postgres, Snowflake, BigQuery
    • GCP, AWS
  • Language Skills:
    • Mandarin: native speaker
    • English: TOEIC 845
    • Japanese: N3

Selected Projects


All Weather Protocol - An Omnichain Yield Aggregator with the Highest Yield

  1. Situation: Users don't know where to find better farming pools
  2. Task: enabling users to effortlessly earn these high yields on autopilot with just one click.
  3. Action: Use 1inch, ERC4626 + Squid to build an omnichain yield aggregator with just one click.
  4. Result: APR 30% + TVL $25000
  5. DApp: https://all-weather-protocol.on.fleek.co/

Experience

All Weather Protocol, Founder, Mar 2023

▪️ Ditto
Company@2x

None Capital, Senior Backend, Nov 2022 ~ Mar 2023

▪️ Situation: Need to meet compliance requirement to get a Crypto Exchange thing in Taiwan
▪️ Task: Do some simple access control for GCP
▪️ Action: Revoked permission of production env from engs.
▪️ Result: would be reviewed by some ISO staff by 2022/01/17
Company@2x

NAOS Finance, Senior Backend Engineer (Contractor), Sep 2022 ~ Jan 2023

NAOS Finance is a decentralized real world asset (RWA) lending protocol that facilitates the borrowing of crypto native assets by using RWA as collateral.
▪️ Situation: Want to refactor the V1 code for better readability and maintenance.
▪️ Task: Design adn implement a new backend service to fulfill this goal.
▪️ Action: Implemented micro-service architecture with Helm, ethers.js
▪️ Result: Can scale TVL, APRs api service and NFT indexer separately.
Company@2x

Consensus DAO, Co-Founder, Sep 2022 ~ Present

▪️ It's a web3 version COSCUP (NGO). A tech conference to average person to reach mass adoption!
https://consensus-conf.on.fleek.co/
▪️DAO's Multi-Sig: https://app.safe.global/arb1:0xFBEb8FCcaDB61D4219864E80F95dc9E7DC0a1596/home 
Company@2x

Doorstead, Software Engineer, Dec 2021 ~ July 2022

Doorstead is pioneering a new class of risk-free property management "iRenting" by providing landlords guaranteed rental income, regardless of occupancy (e.g. $3,400/mo starting in 28 days)
▪️ Situation: The eng team cannot do code review for an UI tool called "Retool"
▪️ Task: Need to use its on-prem solution for having Github integration feature
▪️ Action: Used Terraform, an IaC framework, for this on-prem project
▪️ Result: Used Terraform improves our reproducibility, robustness and readability
Company@2x

Tresl, Software Engineer, Oct 2020 ~ Dec 2021

Tresl is a self-guided data marketing platform that helps you build long-lasting customer relationships. We ingest Data from Shopify, provide insights and send data back to other integrations (reverse ETL)
▪️ Situation: 10 pages of our product takes 30 seconds to load, it's because we were running heavy join query on the fly!
▪️ Task: To solve performance issue
▪️ Action: Used denormalization by following Alibaba's practice and built 3 db layers to speed up the query
▪️ Result: 10X faster (around 120M rows)
Company@2x

PyconTW, Data Team Lead Mar 2020 ~ Present

PyCon Taiwan (PyConTW) is the annual convention in Taiwan for the Python community
▪️ Situation: the team is not data driven
▪️ Task: need to build up a data team
▪️ Action: Setup Metabase for the organization, create vision for data team's volunteers and do monthly 1x1 with them
▪️ Result: retention rate for volunteers is around 50% + 3 teams are currently using Metabase for checking numbers
Company@2x

Atgenomix, Sr. Data Engineer, Apr 2020 ~ Sep 2020

Atgenomix provides fully-scalable genome sequencing Bio-IT solutions by Spark
▪️ Use Spark to run phasing/imputation in parallel

▪️ Improve CI, CD process 3 times faster by using Github Action

▪️ Slim Docker image size by 30% using multi-staged build

Company@2x

Dcard, Junior Data Engineer, Jul 2018 ~ Mar 2020

Dcard is a Taiwan version Reddit
▪️ Situation: need growth on time engagement
▪️ Task: create personalized recommendation system
▪️ Action: Integrate several colleague's algorithm by designing a multi-layer recommendation system and feature store from scratch + Serve 1M people for personalized feed by using K8s and GCP Pub/Sub
▪️ Result: 10% improvement of total engagement
Company@2x
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