AgileEngine is seeking a Senior Backend Engineer to build and maintain backend services, automation workflows, and Salesforce API integrations for a GTM data platform. You will develop REST APIs and webhook-based lead routing, integrate with Salesforce EVO/Omnichannel, and contribute to AI SDR automation using Java or Python in an Agile sprint. The role requires 4+ years of backend experience with Salesforce or API integration, and English communication at an upper-intermediate level.