Integration developer

**Job Title: E-Invoicing Integration Developer / Technical Integrator** We are looking for an experienced integration developer to connect client accounting and ERP systems with an e-invoicing ASP platform. The ideal candidate should have strong experience with REST APIs, webhooks, JSON/XML, authentication, databases, middleware, data mapping, invoice validation, error handling and system testing. Experience integrating QuickBooks, Zoho Books, SAP, Oracle, Microsoft Dynamics, Tally or similar systems is highly preferred. Knowledge of Peppol, UBL, AS4, e-invoicing or tax-compliance platforms is an advantage. This is mainly a backend and systems-integration role; full-stack experience is useful but not essential. The developer must communicate clearly, document integrations properly and be available for ongoing client onboarding and technical support.