Involved in every aspect of the technical side of this beauty product marketplace.Part of a small team that decided to split an existing Rails e-commerce app into several Clojure services. The team unanimously agreed that Clojure would better match our goals of having a healthy and enjoyable codebase that worked well for the company and its customers.Implemented event-sourced order placement and payment system using Clojure, DynamoDB and Elasticsearch. Payment integrated with Stripe, Apple Pay, PayPal and internal store credit systems. This and many other services presented CQRS-style HTTP APIs and broadcast changes to Kafka.Designed and built several services which listen to Kafka topics and broadcast data to third-parties for shipping, customer activity tracking, SMS and email communication.Used ClojureScript, Om, and reagent/re-frame to implement a number of customer and admin web apps. Established CSS tools and practices and worked closely with designers to create beautiful and useful interfaces.Designed and built ETL systems for warehousing data. Most data was sourced from event streams. Worked with data analysis team to write jobs and queries which tested features, monitored operations, summarized performance indicators, and made projections.Maintained open-source Clojure libraries: kafka-component, for managing and testing several threads of Kafka readers using Stuart Sierra's Component; standalone-test-server, for spawning mock servers inside tests, to simulate external APIs; and ring-logging, middleware for logging data about ring requests and responses as they travel through several services.Interviewed new candidates and trained new hires.Maintained service- and system-level test suites.Administered servers using Amazon EC2 Container Service, OpsWorks and several other AWS tools. Responsible for all DevOps, security and on-call monitoring of systems.

Helped tiny startups get off the ground and more established startups ship new features, cleaned up code, and smoothed out bumps in team process.

Built data manipulation tools for medical research projects using Clojure. Learned a few programming languages and spent some time in the hammock.

Opened a new Pivotal office in Boston, as its first Office Director. Responsible for project sales, leading development teams, community involvement, hiring, finding and setting up the new office, and taking out the trash.

As the Pivotal office in SF grew from 40 people to 150 I became one of the most trusted project leaders. I worked on teams of just two developers but also led teams of ten to fifteen developers.At Pivotal I helped build a consumer electronics retail giant's high-performance product catalogue, inventory and location API. I made a major social media company's first tools which allow organizations to manage their presence on the service. I helped ad companies, non-profits and angel investing firms build fast, clean, carefully tested code. I wrote JS animation libraries and Android apps. I developed a sense for when to start from scratch and when to use the best existing tools.Pivotal's teams follow the (lower-case-a) agile principles - the ones focused on releasing good products with happy and productive teams. I understand deeply the value of testing code, of releasing often, of pairing on hard problems or with new team members, of organizing work so you have both high throughput and can make quick adjustments.

Rails developer for Blurb, a startup that lets anyone create bookstore-quality books. Led projects across the full stack - from complex front-end overhauls, to low level database and query design and server administration. Created the data warehouse and wrote the credit-card processing and author reimbursement code.