Technical Account Manager at Vonage

Department: API Customer Care

Language

Location: Warsaw, Masovian Voivodeship
Level: senior
Posted: Sep 17, 2026

Description

Vonage is hiring a Senior Customer Success Manager to own and grow a portfolio of strategic enterprise accounts across its communications API suite. The role serves as a strategic advisor to technical and executive stakeholders, develops customer success plans, drives API adoption and ROI, manages renewals and expansion, escalates complex issues, and contributes customer feedback to product and engineering. Candidates need fluency in English and German, at least 8 years of relevant customer-facing experience, CPaaS and API knowledge, strong communication and data-analysis skills, and limited regional travel.

Required Skills

CPaaS
REST APIs
Webhooks
SDKs
Customer health
Salesforce
Gainsight

Additional Information

Required Previous Experiences: 8+ years in Customer Success, Technical Account Management, or a similar strategic customer-facing role within a SaaS/CPaaS or technology company, with a track record of managing complex enterprise accounts.
Hands-on familiarity with CPaaS products, messaging APIs, voice and video, authentication, REST APIs, webhooks, and SDKs.
Proven ability to navigate complex, multi-stakeholder environments and drive alignment across competing priorities.
Proficiency in analyzing customer health scores, usage data, and engagement metrics, and using CRM or customer success platforms such as Salesforce or Gainsight.
Preferred Qualifications: Prior experience with global CPaaS providers or enterprise-scale integrations and high-volume traffic platforms.
Experience with conversational AI, chatbot platforms, or omnichannel engagement strategies.
Familiarity with VoIP, SIP, or WebRTC protocols.
Translation Company Name: Vonage