Six new microservices/APIs designed, implemented and established by Isaak Tsalicoglou within 6 months at TECTRA Ltd , enabling the company to increase responsiveness and consistency by:
- making access to decision-making information (pricing, inventories, historical payment terms, etc.) instantaneous, as well as to
- generating/updating customer-facing information rapidly and with minimal effort.
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ProductItems: API for issuing/managing item codes for single-item products, and for bundle configuration management. 
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VATcheck: API for retrieving/storing/enriching info and classifying customers using NACE-related values from the EU VIES and the Greek GSIS databases. 
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Depot: API for inventory management. 
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Timologia: search across issued invoices going as far back as 2016. 
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CaseTrack: the management backend of the tracking service at track.tectra.gr – part of TECtrack 
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Offer: API that generates quotation/offer documents with QR codes for track.tectra.gr as HTML pages ready-to-print to PDF, and optionally as ready-to-download as an editable ODT document. 
 
        