Taking part in the development of a web application named Cash&Billing. It's used by bank tellers. My responsibilities:1. minor tasks according to the new laws and regulations passed by the National Bank of Ukraine (changing or adding new commissions, payment purposes, correcting receipt patterns, applying new rules for currency operations and other payments);2. integrations with payment systems (online and offline both) and money transfer systems (local transfers, Western Union, MoneyGram);3. integrations with web services and other applications used by banks (POS terminals, deposit guarantee fund service);4. other bank-ordered tasks: modules for metals, coins, travel checks, offbalance accounts monitoring.