How to hire for your organization
A three-part series from 9/21/20 to 10/5/20 on how to hire for your organization.
The Tempral Workflow Framework
Let’s look at a use case. A customer signs up for an application with a trial period. After the period, if the customer has not cancelled, he should be charged once a month for the renewal. The customer has to be notified by email about the charges and should be able to cancel the subscription at any time.
The business logic of this use case is not very complicated and can be expressed in a few dozen lines of code. But any practical implementation has to ensure that the business process is fault tolerant and scalable. There are various ways to approach the design of such a system.
AI Constraint Solver
I was asked to implement a solver as an interview question. OptaPlanner is a framework that makes solving such problems
There’s no need to input constraints as mathematical equations. Under the hood, OptaPlanner combines sophisticated Artificial Intelligence optimization algorithms (such as Tabu Search, Simulated Annealing, Late Acceptance and other metaheuristics) with very efficient score calculation and other state-of-the-art constraint solving techniques.