most of us had experience with traditional development only, so we had to adopt devops mentality to be really effective, the company had ~4 system engineers who

most of us had experience with traditional development only, so we had to adopt devops mentality to be really effective, the company had ~4 system engineers who were working on the monolith full-time, so we had to take care of the microservices we built ourselves. by AWS services I meant things like cloudformation, packer, ansible, consul, the nitty-gritty of ELB, EC2, S3, docker, hardest part for me was IAM and vpc/subnets, dealing with multiple caches instead of a big one, also distributed sessions(in the end we got rid of sessions and used identifiers and a key-value store). Jenkins jobs to deploy and test every single service on its own, and for deploying everything to a test environment and run integration tests. UAT for testing all services on test environment. There is much more than that but these are the things I remember from the top of my head.