DealHub.ai is a leader in business applications, and with its unique quote-to-revenue solution, helps the hottest names in the industry increase their revenue and manage their growth. With an amazing customer-oriented approach and sharp minds, the Support team helps our customers solve technical problems and find the right solutions for their business needs. We're seeking a Senior Customer Support Specialist — a deep technical expert on the DealHub platform who can independently untangle the hardest, most ambiguous customer issues, including complex CRM integration and configuration edge cases that go beyond standard troubleshooting playbooks. Key Responsibilities Own and resolve the most complex, technically ambiguous, and escalated support cases for DealHub's customers worldwide. Provide expert-level application support on DealHub's platform, with deep knowledge of configuration logic, workflow engines, and integration behavior with CRM platforms (Salesforce, HubSpot, Microsoft Dynamics). Diagnose issues that span multiple systems (DealHub - CRM - third-party integrations), tracing root cause across API calls, data sync logic, and configuration layers. Work on a ticket system and communicate with customers via email, phone, and video calls — handling cases too complex or high-stakes for standard resolution paths. Use advanced SQL to investigate data-layer issues, validate hypotheses, and confirm fixes. Serve as the internal go-to technical reference for other Support Specialists on difficult product or integration questions. Ensure every ticket is fully solved — not just closed — with a clear understanding of why the issue occurred. Make the customer feel confident and well taken care of, even in the most technically difficult situations. Requirements Have significant, hands-on experience (several years) as a Support Specialist in B2B SaaS companies, with demonstrated depth on the hardest tier of support cases. Have advanced, proven experience with C
