Backend / NoSQL
2255 USD 
(1) Prepare Beckend ' s flow charter, align the proposed architecture with STO
(2) harmonise with the STO the type of OBD to work with the API set
3) from a set of existing APIs to collect an algorithm to calculate the balance
(4) OBD: storage of part of the information on transactions, part of the user ' s info, part of the user ' s mob, other info in small quantities
(5) QR generation, seed phrase generation
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Kyiv