• Developed the company’s money flow system from an MVP to a robust state machine optimized for extension, consistency, predictability, monitoring, and error recovery.• Mentored both junior and senior engineers, both new and experienced with Clojure from day 1 to independent contributors.• Designed and built new financial products, payment methods, account types and APIs.• Tools: Clojure, Datomic, GraphQL, AWS

• A tool to solve my problem with note reuse – I believe notes should naturally grow into personal knowledge graphs.• I attempted to productize it, but I failed to find a market of people actively trying to solve this problem for themselves.• Tools: Clojure, Postgres, GraphQL, AWS, JavaScript, React

• I resigned to watch our 3yo for 6mo when daycare closed for COVID-19.• Worked on the audio transcription pipeline and various API features.• Tools: Clojure, Redis, Kafka, Postgres, REST, AWS

• Led project at NASA Ames HCI Group to develop a search application integrating dozens of various data sources in a modern UI in support of the SLS Program.• Refactored ETL DSL and pipeline to reduce lines of code by ~50% and size of ETL job descriptions by ~90% while greatly improving system flexibility, performance, and expressive power.• Worked on the Studio IDE Team delivering features such as query plan rendering, editor auto-complete, and data-driven interfaces for system configuration.• Tools: Clojure, Java, Stardog, Solr, GraphQL, JavaScript, TypeScript, Electron, React

- Led the transition from a synchronous and rigid system to an asynchronous, flexible and horizontally scalable system.- Removed a key scaling constraint by designing and implementing a domain-specific job scheduler with Lua and Redis.- Iteratively improved system capacity ~100x without adding resources...and had the next 10x bottleneck pinpointed with a design to clear it- Built a pattern-matching tool to simplify mapping platform APIs to our application domain.- Designed and implemented a structured logging toolchain which became the foundation of our system monitoring.

Built model-driven systems with Clojure, ClojureScript and Datomic using an order of magnitude less code than previous JS and Python projects per unit of functionality (however that's measured).More specifically...- Developed a data and ontology driven web application- Designed and implemented powerful abstractions which enabled us to drive behavior from our data models (such as pub/sub on graph data steroids and ui component layering with clear semantic boundaries)- Implemented novel solutions to common UI problems where we could do something different because of our formally modeled data environment

- Developed a legally binding e-signature tool and document management workflow- Built a document-as-code data structure that produces bespoke documents from user data- Moved expensive functions out of the database and web server into queued services- Routinely implemented new front-end designs to match .psd/.ai files- Implemented subscription payments with Stripe- Refactored a ~10k loc feature (db through ui) to increase flexibility and performance while also cutting loc in half.

Liquidity and Collateral Operations | Margin, Valuations, and Pricing | Master Agreement Risk Management- Modeled hundreds of OTC Derivatives Master Agreements (ISDA, Rahmenvertrag, FBP, etc.) - Data used for pricing, margining, liquidity management, credit risk and various other purposes- Identified and worked cross-divisionally to resolve nuanced systems and process issues- Led project to analyze and improve department’s internal communications practices - Department of 6 teams, 8 locations and ~250 employees- Redesigned my team's reporting and risk metrics to better tell our story, improve management visibility and reduce cost to produce

Derivatives Operations | Margin, Valuations, and Pricing | Master Agreement Risk Management- Restructured the team’s decade-old global shared drive.- Facilitated external consultants’ translation of foreign-language agreements- Performed day-to-day document reconciliations.

- Mac OS X widgets and iGoogle gadgets- 30,000 users and 1,000,000 hits per month- Contextual advertising- Featured in an Apple newsletter, TUAW and magazines in the US, UK, Germany and Japan- iSend, MiniMail, iSnap, iTMS RSS