CareerPlan

Junior Customer Success Manager (API)

Tokyo, Japan (Hybrid)Full-time2026-10-07 → 2026-11-11

Core

Drive adoption of Vonage's CPaaS APIs, foster customer relationships, and ensure long-term satisfaction and retention for businesses integrating messaging, voice, video, and authentication.

Role type

Junior Customer Success Manager (API)

Builds

Cloud communications solutions (messaging, voice, video, authentication) for businesses

Domain

CPaaS / Cloud Communications

Required skills

API familiarity, cloud communications knowledge, SaaS/CPaaS experience, data analysis, strategic problem-solving

Preferred skills

Fluent English and Japanese, technical acumen, cross-functional collaboration

Technologies

APIs, cloud communications platforms, CPaaS solutions

Responsibilities

Build and maintain strong relationships with key stakeholders; Develop success plans to align API solutions with customer goals; Monitor usage patterns and identify expansion opportunities; Act as the voice of the customer to collaborate with internal teams; Identify upsell and cross-sell opportunities; Provide ongoing education and resources to customers; Collect and relay customer feedback to influence product roadmap.

Seniority

Junior, hands-on IC