Ste Contreras Email & Phone Number

Redmond, Washington, United States

Seattle, Washington, United States

Customer re-engagement & personalization engineer for Prime Video owning the recommendation engine for customer minimizing time to stream & maximizing ease to find content - Coordinated and executed scaling efforts based on data driven infrastructure stress testing to ensure availability while minimizing financial cost- Ensured 99.999% availability with 100k+ transactions per second via deployment automation, proactive engineering excellence & on call monitoring - Planned and analyzed A/B testing for proposed service changes to ensure data driven customer experience decisions - Maintained and supported machine learning based recommendation engine driving ~65% of streams - Tracked and aggregated product metrics & customer feedback into actionable tasks for improvement - Assessed design and operational decisions in a hybrid cloud environment for full cloud migration

Plano, Texas

Operations automation engineer creating reliable and regulatory compliant services and tooling to ensure stability and observability in a fast growing large financial institution - Designed and implemented .Net Core microservice architecture in C# replacing legacy monolith allowing for containerization, improved scalability and uptime. - Implemented Continuous Integration/ Continuous Deployment process for windows and linux multi-server product releases with integrated change management controls and tracking - Planned and developed automated systems with python in collaboration with end users, product owners and security to shorten patching and upgrade time - Developed auto-remediation software to address common workstation issues using C# and C in the .Net Common Language runtime to implement lower level windows system calls - Designed and developed software for tracking system state and changes to meet audit requirements and retire sunset database and vendor software - Prioritized and deconflicted long term projects with business and dependent technical teams in scaled agile environment - Monitored system health and performance of production services in collaboration with multiple teams - Coordinated with product owners to refine technical requirements and priorities for target project milestones

Houston, Texas

- Programmed automated website generator with integration into pre-existing infrastructure allowing use by non-technical staff- Designed novel intranet setup based on research on industry recognitions and internal focus groups- Wrote technical documentation and produced training materials for project handoff- Collaborated in international team following agile methodologies

Austin, Texas

- Standardized website creation process reducing time spent by non-specialized staff on remediating defects- Lead formal training sessions on updated website management tools and procedures- Verified functionality and consistency of software through in depth quality assurance testing