Just two examples from my prior gig (fashion e-commerce).
#1 Our hottest dataset (db of current products) stored in DynamoDB. Core dependency for all our code. Easily fits in < 1Gb of RAM. OMG, just make a hashmap. Over a year, I managed to persuade the team to start transition from DynamoDB to Redis.
#2 Tiny (vs micro) service that munged some URLs. Blocker for an important campaign. Prior team of 4 churned for a year, was no closer to delivery. Spring, ORMs, CI/CD pipelines, the works. I spent a week unraveling the requirements (repeated facepalm). A second week banging out a trivial nodejs thing. (My team preferred nodejs, which was their prerogative.) Really trivial. I felt so bad for the biz dev people who'd been dying to get this functionality for so long.
Just two examples from my prior gig (fashion e-commerce).
#1 Our hottest dataset (db of current products) stored in DynamoDB. Core dependency for all our code. Easily fits in < 1Gb of RAM. OMG, just make a hashmap. Over a year, I managed to persuade the team to start transition from DynamoDB to Redis.
#2 Tiny (vs micro) service that munged some URLs. Blocker for an important campaign. Prior team of 4 churned for a year, was no closer to delivery. Spring, ORMs, CI/CD pipelines, the works. I spent a week unraveling the requirements (repeated facepalm). A second week banging out a trivial nodejs thing. (My team preferred nodejs, which was their prerogative.) Really trivial. I felt so bad for the biz dev people who'd been dying to get this functionality for so long.