Nathan O. Email & Phone Number

Walldorf, BW, DE

• Developed and maintains Hermes, a highly scalable multi-tenant notification service for SAP Cloud Computing (SAPCC), using Python and Golang. Hermes provides reliable event-driven communication for critical cloud.
• Created openstack-audit-middleware, a comprehensive auditing tool for OpenStack using Golang, ELK stack, and CADF audit mappings. This middleware significantly increased security visibility and facilitated compliance.
• Deploys and manages global cloud infrastructure using Helm, Kubernetes, and various CNCF projects, substantially improving system scalability, reliability, and automation capabilities. Proficient in working with.
• Implemented and maintains monitoring solutions using Prometheus, Grafana, ElasticSearch, Logstash, RabbitMQ, and OpenSearch, enabling proactive issue detection, improved troubleshooting, and data-driven decision making.
• Leverages Concourse CI for efficient CI/CD pipelines, ensuring high quality code deployments and faster time-to-market for new features and enhancements.
• Implemented a Netflow monitoring solution that greatly improved network transparency, anomaly detection, and troubleshooting capabilities, resulting in reduced mean-time-to-resolution for network incidents.

London, London, GB

Lead team to build and architect a Petabyte scale Data Warehouse for Intel. Partners included EMC, Lenovo, SAP, Intel, and Bluefin. Data Warehouse included the in-memory database HANA connected with a Dynamic Tiering implementation as well as a Spark cluster utilizing HANA Vora. The work involved was displayed at the SAP TechEd 2015 Keynote with John.

Walldorf, BW, DE

Split time working in the Cloud Systems Engineering team helping on several projects including Baremetal deployments on Openstack, and the architecture of the HANA Enterprise Cloud. Worked on project to move Successfactors and Ariba to SAP HANA. Helped develop architecture for the HANA Enterprise Cloud to enable Hadoop deployments. Built monitoring system.

Walldorf, BW, DE

Enterprise Architect at SAP in the CIO Office. Major projects that I've worked on have included upgrading SAP's internal global business systems (CRM/ERP) to HANA. Customer engagements communicating the experience of our internal implementations (SAP Runs SAP). Speaking at SAP Conferences TechEd, DKOM, and Sapphire. Created a whitepaper for SAP's.

Design AI Mods for Civilization 4 and Civilization 5. Included Fall From Heaven, and Fall Further. Python, Lua, SQL, and C++ skills involved.

Implement retail pricing for customers using Khimetrics advanced retail analytics software. Helped Architect the software, and host it from Khimetrics Data Centers, as well as implementing it onsite at customers like Petsmart, Lowes, and El Corte Ingles. Linux Administrator, Aix Administration, Veritas Backups, Nagios monitoring, IBM Blade Center.

Indianapolis, Indiana, US

Tier 3 support for large insurance company. Valuable experience with a range of enterprise software and support.

Support for IndyNet, a dial up ISP located in Indianapolis. Provided phone support for dial up customers.