Steve Ypma Email & Phone Number

Duluth, Georgia

• Architect and technical lead developing cybersecurity software that protects infrastructure from USB attacks.Global Analysis Research and Defense (GARD) project:
• Architected and built threat intelligence services and customer-facing management portal in Azure.
• Transitioned customers from existing APIs (VM / SQL server / Angular) to microservice REST APIs documented with Swagger (App Services / Cosmos DB / React).
• Assisted Security Architect in release process, maintaining Threat Models, Data Flow diagrams, code analysis results from Coverity and SonarQube, OSS vulnerabilities reported by Black Duck SCA.Secure Media Exchange.
• Re-designed and built Windows Service from the ground up in.NET 7 to expand remote management capability, scanning functionality and increase performance by 500%.
• Technical lead responsible for architectural designs and code reviews.

Duluth, Georgia

• Team lead and Scrum Master of team developing cloud-based Video-On-Demand (VOD) back-office software. Collaborated with team leads and the System Management team to clarify requirements, prioritize user stories and.
• Developed API interfaces hosted by C# micro services and extended Cassandra data models to support new client functionality.
• Ensured product quality by adopting TDD, implementing unit tests and end-to-end functional tests.MDMS project:
• Extended erlang micro services, integrating with third-party billing and VOD catalog systems.
• Developed Python test framework and functional tests to automate nightly regression testing.
• Updated open-source erlang mongodb driver for wire protocol version 3 to leverage performance improvements in mongodb 3.

Duluth, Georgia

• Provided guidance and direction to a team of software engineers on a Next-Gen MediaPath content delivery product. Collaborated with Product Owner to create new product based on zBand’s transport layer, adding a Tomcat.
• Re-designed server software to achieve performance gains and eliminate technical debt and migrated to Linux to save Windows licensing costs.
• Evolved product to support delivery of non-VOD content to address new markets.
• Transitioned team to Agile Scrum from ad hoc to allow a consistent release schedule.

Thunder Bay, Ontario, Canada

• Provided guidance and direction to a team of software engineers on zBand content delivery product. Collaborated with architect, developers, and quality assurance (QA) to design solutions to fit product requirements..
• Transitioned to Unified Process from waterfall software development process to mitigate risk and ensure release deadlines were hit.

Thunder Bay, Ontario Canada

• Conducted embedded client software development for set-top-boxes, zBand content delivery product. Re-architected client software using a layered approach built on a transport layer kernel. Developed XML and plug-in.
• Created a client code base that could be custom-built for different embedded environments while supporting existing PC (Windows/Linux) builds.

Thunder Bay, Ontario, Canada

• Application server and transport layer development, zBand content delivery product. Designed and built XML-over-HTTP API for third-party integration. Implemented FTP server to allow content upload by third-party.
• Implemented erasure-coding based Forward Error Correction with interleave and asynchronous repair in UDP multicast-based transport protocol to provide reliability.
• Refactored transmission code to improve performance by a factor of at least 10.
• Extended PGM library to comply with latest draft specification.