Optimal work scheduler and routes planner for bank's couriers

Spring 2020. COVID lockdowns…

Banks need to QUICKLY build software for field managers (couriers) that visit customers to provide bank services that can’t be provided remotely: opening an account for new customer, a new credit card, etc.
Optimally plan work activities and routes for hundreds of bank couriers, considering:
- location of customers and desired time of visit
- desired location of the start and end day of the courier
- transportation of couriers by car or public transport
- predicted and actual real-time traffic jam
Customer scoring algorithms
Bi-directional integrations with other banking systems
Admin panel and rich end-user web GUI
Reporting subsystem, exports to Excel

PHP and Yii2 framework for rapid-development and easy integration with other PHP/Yii2-based bank systems
Vue.js for admin panel
API / Swagger for other bank systems written on Angular
Integration with external address parser and normalizer + caching
Integration with external routing service
Domain Driven Development (DDD) approach
Unit testing, Codeception
Docker, CI/CD process, and test environments with test data for all auto tests

The system was quickly developed, deployed and started to work in the bank (our client’s client)
The system helped the bank to attract many new customers everyday. And the customers receive all services without visiting the bank.
The bank’s couriers are now utilized in the most optimal way: optimal route schedule for every day for each courier, monitoring performance in real-time, optimal replanning when visits should be cancelled / shifted / added
The system is ready for scaling for other banks - so our client will multiply the profit