Customer Solutions

The role

You will own the customer journey from signed contract to live status. You will onboard customers, debug technical issues, and build relationships to drive expansion and retention.

What you will do

• Guide new customers through API integration, webhooks, templates, sender registration, number provisioning, and voice setup.
• Drive customers from signed to sending live traffic fast.
• Debug delivery, routing, and compliance issues.
• Dig into logs and the API and escalate to Engineering when needed.
• Be the trusted technical partner for accounts through regular check-ins and proactive outreach.
• Identify new use cases, channels, and volume to bring expansion opportunities to the team.
• Monitor usage and health signals to catch churn risk early.
• Build docs, scripts, templates, and playbooks to scale onboarding.
• Turn customer patterns into product feedback for Product and Engineering.

Required qualifications

• 3+ years in customer success, post-sales solutions engineering, or technical account management (or you're an engineer or founder who loves working with customers)
• Can read API docs, make API calls, and write basic code
• Fluent in using AI tools for efficiency
• Explain technical concepts clearly to developers and non-technical stakeholders
• Build trust quickly and communicate with warmth and directness
• Care about customer outcomes more than a to-do list
• Operate with a founder mindset

Nice to have

• Experience with technical products / developer tools, communications APIs, messaging
• Familiarity with SMS compliance (10DLC, TCR, opt-in/opt-out), the WhatsApp Business Platform, RCS, or voice
• Early-stage startup experience
• Experience building lightweight automations or internal tools

Benefits

• Meaningful equity with high growth potential
• Top-tier medical, dental, vision fully covered
• 401(k) with 100% match up to 4%
• Unlimited PTO
• Beautiful NYC workspace with daily meals and unlimited snacks
• New MacBook Pro + Apple Studio Display
• Fully comped Wellhub Gold or Equinox membership

About the company

Sent is a developer tool for customer engagement that helps developers and agents deliver messages across voice, SMS, WhatsApp, and RCS through a single API.