Just about every one I've interviewed with recently has been breaking their monolith up into micro-services for some reason.
When I've done this in the past I had a key goal: reliability. The cost was about 10x the development effort of the monolith in order to add an extra 9 to the reliability. The monolith was wonderful for getting up and running quickly as a business solution but it actually crippled the business because they had failed to identify how essential reliability was. KYC.
Personally I've come to the conclusion that the main benefits of SOA/MSA are not necessarily technical but more organisational/sociological. Having distinct silos of activity/responsibility, separate teams and communications channels; all can make a large project more manageable than the monolith by allowing the lower level problems to be abstracted away (from a management perspective).
When I've done this in the past I had a key goal: reliability. The cost was about 10x the development effort of the monolith in order to add an extra 9 to the reliability. The monolith was wonderful for getting up and running quickly as a business solution but it actually crippled the business because they had failed to identify how essential reliability was. KYC.
Personally I've come to the conclusion that the main benefits of SOA/MSA are not necessarily technical but more organisational/sociological. Having distinct silos of activity/responsibility, separate teams and communications channels; all can make a large project more manageable than the monolith by allowing the lower level problems to be abstracted away (from a management perspective).