BACPS is the electronic network for financial transactions in Bangladesh. We have designed and implemented the complete BACH solution from scratch. Our solution is secure, expandable, web based interface, easy to administer and completely follows Bangladesh Bank standard. My part in this project includes overall architecture design, Scanner driver implementation, Outward processing module, web 2 interface and secure web-service implementation. Currently the system is used by Shahjalal Islami Bank Limited, Prime Bank Limited, and Bangladesh Krishi Bank.