Jordan Timmerman

Experience

• Senior Engineer

  Legend Labs

  (see also: legend/agents)
  June 2024 ‒ Present

  Same team from Compound Labs. Consumer crypto app; pivoted to agentic finance API. Worked across the stack from smart contracts, to React Native, to DX/DevOps, to backend, to AI. First eng to adopt + advocate for Claude Code.

  "Penny" Finance Agent

  • OpenAI
  • Anthropic
  • Gemini
  • React Native
  • Expo

  https://trypenny.ailegend/agents

  Personal finance agent. Built with Expo/React Native, Elixir, and OpenAI/Anthropic/Gemini APIs. Multi-provider AI backend, skills/tools, multi-turn context management + websocket connectivity persistence.

  CI/CD, DevEx, DevOps

  • shell
  • Docker
  • Kubernetes
  • Google Cloud
  • Pulumi / Terraform
  • GitHub Actions
  • Cloudflare

  Built and owned end-to-end production development process. From GitHub Actions CI/CD pipelines, to automating releases across codependent packages in our monorepo, to the Pulumi IaaC codebase that deploys our Kubernetes clusters and the Xcode builds that ship our iOS clients. Fast and well-maintained.

  Portfolios

  • Elixir
  • Postgresql
  • Solidity
  • Redis
  • EVM
  • Solana

  Designed + built core portfolios data pipeline. Crawls networks, tracks user positions across chains and DeFi protocols. Batches accounts for latency and cost. Tracks work in a priority queue for optimal update cadence.

  Node Provider Proxy

  • Redis
  • Elixir
  • EVM
  • Solana
  • Telemetry / OpenTelemetry

  Smart routing for node RPCs for Ethereum and Solana chains. Follows policies, e.g. submit transactions on mainnet to flashbots. Races latency-sensitive requests across many providers. Emits traces and telemetry.

  Quark smart wallet

  • Account Abstraction
  • Solidity
  • Foundry

  https://github.com/compound-finance/quark

  Smart wallet. Developed nonce-scoped isolated storage system, QuarkStateManager. Implemented gas snapshot regression testing. Prior to the availability of tstore, implemented stateless re-entrancy guard.

• Senior Engineer

  Compound Labs

  July 2022 ‒ June 2024

  Cured chronic unreliability. Eliminated legacy cost centers. Managed web application firewall to address abuse.

  Compound III API

  • Cloudflare Workers
  • Workers KV
  • TypeScript
  • EVM

  https://v3-api.compound.finance

  A strongly-typed symbolic execution engine written in TypeScript, taking advantage of compiler techniques to evaluate complex graphs of EVM queries and bundle requests into huge JSON-RPC batches. Backed by a self-healing global hierarchical cache hosted on Workers KV.

• Senior Software Engineer (Link Platform)

  Plaid

  April 2021 ‒ May 2022

  Shipped Flex Link, a new server-driven architecture driving all of Plaid's user experiences. Migrated traffic while shipping new products. Acted as the new platform's pinch hitter. Filled leadership gaps.

  Flexible ("Flex") Link

  • golang
  • LaunchDarkly
  • Jenkins / CI

  Rolled out Flex Link. Ran team retrospectives. Solved rollout failures via least-common version resolution.

  Transfer UI

  • golang
  • protobuf
  • TypeScript
  • React.js

  https://plaid.com/docs/transfer/using-transfer-ui/

  Co-led with Transfer team: drop-in 2-tap bank transfer user experience built on Flex Link. Designed "intents."

  Multi-Product Link

  • golang
  • protobuf
  • documentation
  • leadership

  Championed and designed first novel API changes in 6 years to Link's SDKs to support multiple product experiences in a single user flow. (E.g. link bank account -> transfer funds, without exiting Link.)

• Software Engineer (Core Tech)

  Better.com

  June 2019 ‒ March 2021

  Core Tech Office Hours

  • public speaking
  • event organization
  • leadership

  Popular monthly event regularly attended by 65+ engineers. Organizer, host, regular presenter.

  Plaid for Underwriting

  • TypeScript + Node.js
  • Ember.js
  • AWS S3, ActiveMQ
  • WebSockets
  • Internal frameworks

  Rebuilt asset uploads integration with Plaid instead of AccountChek. Conversion improved from 5% -> 20%.

• PhD Student (CompSci)

  Northwestern University
  September 2018 ‒ June 2019

  Compilers research in autoparallelization using LLVM, Clang, OpenMP and C++.

• Founding Engineer

  Deep Dish Technology
  June 2017 ‒ February 2019

  Led team of 4. Built a visual forms engine on JavaScript, AWS API Gateway, Lambda, DynamoDB, S3.

• Founding Engineer

  Encurate Mobile
  June 2016 ‒ December 2016

  Serverless CMS for interactive Museum apps. TypeScript, Angular 2, AWS API Gateway, Lambda, DynamoDB, S3.

  >>> does anyone else remember bluetooth beacons?

• Student Developer

  Northwestern University
  October 2013 ‒ June 2017

  Built audio recording software in online language placement exams for iOS, Android, and browsers.

  >>> cross-platform WebAudio in 2016! fun times.