Design, integrate, and verify large-scale delivery systems. System design to support scale, security and observability, microservices and APIs, reliability, large datasets, handling PII.

Work with clients to deliver software with the greatest value. Discover and manage requirements, design architecture, plan and execute implementation and testing. Agile methodologies, frequent delivery, continuous integration. Handle changing business requirements, cloud deployments, infrastructure updates. Work with clients, users, other consultants, and support personnel from different organizations, and in different locations. Local and remote teams.

Work with clients to deliver software with the greatest value. Discover and manage requirements, design architecture, plan and execute implementation and testing. Agile methodologies, frequent delivery, continuous integration. Handle changing business requirements, cloud deployments, infrastructure updates. Work with clients, users, other consultants, and support personnel from different organizations, and in different locations. Local and remote teams.

TurboTaxOnline - on-line tax application. Working on large-scale high-availability, high-performance web application, large-volume data processing. Major changes: architecture, design, business logic, features, UI.Integration with in-house and third-party systems, modularization, API redesign. Unix(Solaris), Oracle, C++, Java, maven, SQL, JavaScript

Identity Theft detection and prevention. High-availability high-performance application server, MQ systems, client interfaces, processing large data sets, secure data handling. Designed, developed and deployed large-scale custom projects, worked with clients on integration and monitoring setup. Project planning, spec development, evaluating third-party tools, working with junior developers. Created and published product documentation, developed and presented support workshops. Unix(Linux, Solaris), Java, Ant, scripting languages, JUnit, MySQL, MQ systems, multithreading.

Worked on electronic trading system for fixed income securities. Updated trading rules logic, such as minimum quantity and increment, improved market data publishing protocols, updated straight-through processing (STP). Implemented user management processes on the system such as billing date calculations, market data access rules. Improved system reliability by implementing distributed logging. Created TradeWeb billing system. Worked with accounting department to compile system specifications, designed and documented business logic, implemented, tested and supported the system through the go-live. Reliability, data and process replication, interprocess communication, multi-threading.

Maintained a Reuters network; designed and developed information flow system consisting of an API and a proxy application to publish trading data onto Reuters channels. Maintained and enhanced electronic trading applications. Increased performance and reliability of the fixed-income trading system. Implemented a tool for load-testing, stability and scalability performance tests for the trading system.

Netscape security technology - PKI, SSLEnhanced PKCS11 and PKCS7 modules, implemented PKCS3 - Diffie-Hellman key pair generation.Enhanced SSL API and documentation.PSM - Personal Security Manager, released with Communicator 6.0 distribution. Created PSM framework object oriented design, based on connection objects, multi-threaded producer-consumer data flow organization.Implemented PSM functionality request-response communication model with the Communicator, digital certificate management, digital signature creation and verification and encryption for Netscape email client.

California Technology and Manufacturing. ETEST groupDesign and development software tools for process automation and data retrieval and visualization.Tcl/Tk(incr Tcl - object oriented), HP Basic