Leo Chen
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Leo Chen

Leo Chen led a team of 8 engineers at Amazon Web Services. There he built high-throughput storage virtualization for more than 200k EC2 instances. At Amazon Lab126, Leo built the first generation of Kindle Fire and architected FireOS for all Amazon devices. At Ericsson and Broadcom he worked on their Linux kernel, embedded systems, and large-scale distributed systems.

Leo holds a master’s degree in computer science from Simon Fraser University and a bachelor’s degree from Zhejiang University. Leo has completed 8 full marathons and hiked the Grand Canyon R3, John Muir Trail, and soon the entire Pacific Crest Trail.

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Leo's 2022 Plan
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Uptime and Scaling for Services
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Cloud cost breakdown and reduction plan
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InfraDAO

Monthly Goals

Jan/2022

  • System: launch beacon chain DB size pruning to reduce 30-50% of disk size for beacon chain DB for shard1/2/3 nodes (state pruning)
  • System: initial design and implementation of new scalable RPC architecture, roll out new end point for public testing
  • NFT: initiate and start Metaverse DAO to expand the NFT/GameFi ecosystem on Harmony

Upcoming Plans

  • Yearly Planning: 2022 Q1 - Q3
    • System: support external leader rotation and slashing; reduce system resource consumption of validators by 30% incl. CPU/Network/Storage; metrics, monitoring, and alarm dashboard of the entire network.
    • Technical Partnership: set the strategy and drive the collaboration with wallet/exchange/API partners; expand the ecosystem of NFT infrastructure and tooling partners.
    • Decentralized Ops: fully decentralized the network infrastructure and services to external partners and DAOs;

Ownership

  • system: system-level optimization; system monitoring; system architecture for all services
  • technical partners: oversee technical partners with blockchain contributors; middleware; infrastructure providers
  • NFT: oversee all NFT initiatives; build NFT partnership; drive collaboration of NFT projects

Weekly Update

2021-01-24

  • Blue Metaverse - cross-chain identity
  • Continue Rosetta mainnet testing, fixing implementation issues
  • Deploy deep pruning support

2021-01-17

  • Continue Rosetta mainnet testing, testnet test passed
  • Launch staking smart contract support
  • Launch beacon chain pruning support

2021-01-10

2021-01-03

2021-12-13

2021-12-06

  • upgrade explorer nodes to fix /node-sync checking regression in the 4.3.1 release
    • RPC investigation and mitigation on high latency
  • Review AWS bill and discuss with the team on how to reduce it; made a plan
  • prepare for the Day ONE talk
  • Day ONE event
  • Bounty for BSC/Avax NFT bridge
  • Recording the IOSG Old Friends Reunion Panel
  • Attend Polygon ZK day
  • Fix/Resurrect the snapshot service. It was stopped for a few days due to snapshot nodes failed to catch up with latest blocks.
  • Support Chainlink nodes

2021-11-29 - done

  • discuss with validators on various HIP proposals (1, 2)
  • finally launched cross-chain NFT bridge (twitter, youtube)
  • fixed gitbook doc on redundant node setup
  • handled explorer indexer lagging behind issue
  • help triage release and explorer issues

2021-11-22 - done

  • Cross-chain NFT bridge mainnet testing, shoot video with Adrian
  • 2022 roadmap/milestones
  • Perf review, role model review
  • Thanksgiving Holiday

2021-11-15 - done

2021-11-08 - done

2021-11-01 - done

2021-10-25 - done

2021-10-18 - done

2021-10-08 - done