Data management and optimization. Applied distributed compute solutions for large-scale data processing pipelines.

Data management and optimization. Applied research. Technical lead for Amazon open source initiatives related to the Ray distributed compute framework.

Data management and optimization.

High performance column-oriented database development in C++.

• High performance transaction processing system development on a platform responsible for processing over $3,000,000,000 USD of transactions per year.• Developed custom NAnt extensions to automate the deploy and configuration process for all Authorize.net applications, reducing average deploy times for new application servers from days to minutes.• Brought dozens of web services and applications into compliance with strict security guidelines, including discovery and remediation of XSS, CSRF, SQL Injection, and authentication/session-management vulnerabilities.• Built and maintained C#/ASP.NET web apps, C++ ISAPI DLLs, and Windows services.• Microsoft SQL Server administration including development of T-SQL stored procedures for data manipulation and definition in business-critical production financial systems.• Undisputed interoffice Typing of the Dead welterweight and openweight champion.

• Created test suite development guidelines, examples, and presentations for SDETs across multiple teams.• Built C# libraries to test web interfaces via Selenium RC, act as HTTP clients to RESTful web services, interact with SOAP-based web services, perform JSON/XML serialization and deserialization, carry out various cryptographic functions, and perform data access layer tasks.• Wrote T-SQL queries, tested stored procedures, and analyzed Microsoft SQL Server database traces.• Leveraged the Fitnesse FIT and SLIM test systems to drive test fixtures developed in C#.• Maintained legacy web applications written in Delphi.• Worked with teammates to plan/prioritize work, define acceptance criteria, and create automatedacceptance tests to guide a test-driven development process.• Regularly work on both development and QA tasks within a highly technical and cross-functional team.• Experience using the AccuRev software configuration management system, NAnt, and Cruise Control.Net.• Agile/Scrum software development methodologies.

• Security and penetration testing. Identified and resolved business-critical security issues, and advocated secure coding practices.• ThreatPulse Client Connector (later known as Unified Agent) test lead from initial QA code drop to open beta.• K9 Web Protection test lead. Saw the initial 4.0.x versions to public release.• Automated tests and common tasks using various languages and technologies including Java, C++, BASH, and Selenium RC.• Extensive white and black box testing of Reporter 9 from initial QA code drop to post public release.• Cloud-based SaaS QA experience including configuration, management, and testing of backend TheatPulse cloud servers and ProxySG appliances.• Experience diagnosing and resolving complex network communication issues involving NAT, VLAN, VPN, SOAP, HTTP, LDAP, FTP, DNS, NetBIOS, TLS/SSL, SMTP, SSH, andgeneral routing/subnetting.• Configured and managed vsftpd, OpenLDAP, Apache Archiva, Apache HTTP, Microsoft IIS, and SMB servers.• RHEL and Ubuntu Server administration experience.

• Researched innovative security solutions to complex problems involving user authentication and data confidentiality in open systems.• Gained familiarity with the internal workings and application of popular security standards such as 3DES, AES, RC4, RSA, Diffie-Hellman Key Exchange, MD5, SHA, Kerberos, X.509 Certificates, PGP, S/MIME, SSH, and TLS/SSL.• Acquired knowledge of, and built applications to work in compliance with, common networking standards including SMTP, POP, IMAP, and CGI.

Principals of the software industry from both employee and managerial perspectives, software business plan feasibility analysis, and essentials of small software business entrepreneurship.