- OpsBuddy is an alerting tool for your Slack #operations channel.- As sole founder, I took the idea from concept to production. Development discontinued due to insufficient traction.- Technologies: Slack APIs & OAuth, Python, Django.

- Tech Lead for Monetization: we built usage tracking, billing plans & self-serve checkout, enabling us to go from zero to significant ARR.- Platform & architecture work, including a new task scheduling &execution system to replace the old one we had outgrown.- Significant contributions to developer productivity & new engineeronboarding.

Infrastructure at scale:Worked on in-house consistent cache that serves 20 million req/sec.Implemented failover across datacenters.Responsible for performance & resilience: improved availability to 99.9999%.Front-end application development:Worked on Dropbox Paper. Responsible for mentoring new hires & interns.

Architected, built and operated major product features and mission-critical infrastructure, including:- Part of the team tasked with scaling existing systems and introducing new technologies. We introduced and productionized Kafka, and operated multiple redundant cross-DC Kafka clusters, as well as new mission-crtiical services that rely on Kafka.- Architect and technical lead for the team that built the Advanced Analytics features. The design included a streaming ETL process, with suitable design choices that would meet PagerDuty's reliability goals. Advanced Analytics is a key enterprise feature, and significant revenue contributor.- PagerDuty's integration agent: Owned research and product specification. Co-developed and documented the agent. See github.com/PagerDuty/pdagentTechnologies: Scala, Ruby, Elixir, Python, Chef, AWS, Docker, JavaScript, and many others.

Worked on the application stack, including: virtual database lifecycle system, web services, logging policies, and GUI development. Technologies: Java, Flex.

- I worked with the Founder/CTO to develop the company’s main product LabManager. I was involved in all engineering areas of the company, from day one through to acquisition by Citrix.- Architected the product, implemented key backend components. Managed and mentored a team of 10 engineers. Key contributor for product management and user interface.- Responsible for all technical aspects of our Citrix OEM relationship and subsequent acquisition, including technical due-diligence.- Technologies: Advanced Python development, including Twisted, multi-threading, multi-version, and cross-platform code; web and SQL framework development. Networking. Virtualization. x86 multi-boot. Postgresql and Sqlite. Web development.