Designed, coded, tested, deployed, and supported enterprise backup and information security software. Designed, coded, and tested endpoint monitoring code. Provided technical leadership across teams in the areas of tooling, workflow, and test automation.* Maintained and enhanced Code42 desktop and cloud engines for CrashPlan, including exabyte scale distributed storage architecture and Rabin blocking. (kotlin, java, S3, C++, rocksdb)* Designed and implemented exfiltrated file collection (XFC) sub-system for INCYDR. (rust, kotlin, Spring Boot, ECS, DynamoDB, S3, sqlite)* Instrumented server processes and implemented dashboards with application telemetry. (InfluxDB, CloudWatch, grafana, dynamoDB)* Created and maintained CI tooling and pipelines (concourse, jenkins, golang, docker, AWS, ECR)* Acted as a Test Champion (kotlin, java, jUnit, jAssert, mockito, jacoco, jArchitect)* Added functionality to Code42 messaging layer. (java, protobuf, netty)* Wrote acceptance and performance testing tools and test definitions. (ruby, cucumber, java, clojure, Ansible, EC2).* Implemented Windows SharePlan client and associated tools. (C#, WPF, WCF)

Designed, coded, tested, and supported real-time, mission-critical software for the financial industry. Projects included execution management, risk management, algorithmic trading, APIs, and test infrastructure, including:* Created testing tools and methodologies for EMS systems, including procedural and declarative test harnesses, randomized soak testing, opinionated soak testing, stochastic functional testing, and post-facto scenario-driven correctness testing. These tools regularly detected logical failures and stability issues in release candidates (C#).* Maintained and enhanced risk analysis and algorithmic trading engines, added unit test coverage to the codebases, added features for customers, and wrote documentation and APIs.* Designed and coded APIs and middleware to provide customers with programmatic access to order management and quote distribution systems from VB, C++, .NET, and Microsoft Excel. (C# / C++ / VB / COM / VSTO / Excel / RTD).* Designed and coded line-of-business applications for OTS reporting, ATDL editing, and various other applications related to order management. (C# / WinForms / Silverlight / ASP.NET MVC).* Designed and coded real-time management console software for order management and quote distribution systems with hundreds of servers. (C# / WinForms).* Led 5 developers to design and code the matching engine for ARCAX, the United States' first fully electronic stock exchange. (C++).* Designed and coded the ARCA ECN routing engine. (C++).* Designed and coded a simulated options exchange for teaching options trading. (C++).* Coded one of the first cable television stock crawl displays for CNNfn. (C++).

Taught "Introduction to Computer Science" and "Algorithms".