Specialized & Core systems 

Single purpose services and micro services  Java, Spring, Hibernate, Oracle, REST, AMQP,   NodeJS, Angular JS, Bootstrap

Automated infrastructure 

Service Discovery (Consul)  Container Hosting (Rancher, Docker)  Central Application Logging (ELK)  Central Audit Logging (ELK)  Message Broker (RabbitMQ)  B2C & B2B authentication  Application monitoring, metric gathering

Scrum in 4-week sprints and  continuous delivery

Maintenance distributed amongst teams