Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
SAP HANA - SAP HANA is an in-memory, column-oriented, relational database management system.