Customer Solutions Engineer — Post-Sales Impact & Growth

Sent, Inc.; New York (NY); On-site; USD 105,000 - 145,000; Full time

Benefits offered by this job

Equity

Medical coverage

401k match

Unlimited PTO

NYC workspace meals

MacBook Pro

Studio Display

Job summary

Sent, Inc. in New York City is seeking a Customer Solutions Engineer to own the post-sale journey from contract to live and expansion. You will onboard, activate, and support customers, building relationships and delivering value that keeps them with us.

This early-stage team offers high ownership, a founder mindset, and meaningful equity. You will work with cross-functional teams to resolve technical issues and scale post-sales processes.

Qualifications

• 3+ years in customer success, post-sales solutions engineering, or related roles.
• Ability to read API docs, call APIs, and write basic code; comfortable with AI tools.
• Clear communication of technical concepts to developers and non-technical stakeholders.
• Strong trust-building, warmth, and customer-outcome focus.
• Founder mindset with high agency and impact in a startup.

Responsibilities

• Onboard customers through API integration, webhooks, templates, and provisioning.
• Activate customers and move them to live traffic quickly; identify blockers.
• Debug delivery, routing, and compliance issues; escalate with context as needed.
• Build trusted relationships through regular check-ins and proactive outreach.
• Identify expansion opportunities and drive account growth.
• Monitor usage and health signals to protect revenue and reduce churn.
• Create docs, scripts, templates, and playbooks to accelerate onboarding.

Skills

Customer success

Post-sales eng

Tech acct mgmt

Job description

Sent, Inc. in New York City is seeking a Customer Solutions Engineer to own the post-sale journey from contract to live and expansion. You will onboard, activate, and support customers, building relationships and delivering value that keeps them with us.

This early-stage team offers high ownership, a founder mindset, and meaningful equity. You will work with cross-functional teams to resolve technical issues and scale post-sales processes.