Post-Sales Solutions Engineer for Developers

sent.dm; New York (NY); On-site; USD 110,000 - 140,000; Full time

Benefits offered by this job

Equity with growth potential

Top-tier health benefits

401(k) with 4% match

Unlimited PTO

New NYC workspace meals & snacks

MacBook Pro + Studio Display

Wellhub/Equinox membership

Job summary

Sent, Inc. is seeking a proactive Customer Solutions professional to guide post-sales customers through API setup, onboarding, and enabling live traffic.

You will become a trusted technical partner, helping customers maximize value across messaging and voice channels while identifying expansion opportunities and preventing churn. You will collaborate with Product and Engineering, translate customer needs into actionable feedback, and contribute to scalable playbooks and automation to accelerate

Qualifications

• 3+ years in customer success or post-sales roles.
• Able to read API docs, make API calls, and write basic code.
• Able to explain technical concepts to developers and non-technical stakeholders.
• Build trust quickly with customers through warm, direct communication.
• Operate with a founder mindset, high agency, and impact at a young company.

Responsibilities

• Onboard: guide customers through API integration, webhooks, templates, sender registration, and provisioning.
• Activate: move customers to live sending traffic quickly and clear blockers.
• Solve: debug delivery, routing, and compliance issues; review logs and escalate with context.
• Build relationships: regular check-ins and proactive outreach as their technical partner.
• Grow accounts: identify new use cases, channels, and volume; pursue expansion opportunities.
• Protect revenue: monitor usage, health signals, churn risk, and save plans.
• Scale it: create docs, scripts, templates, and playbooks to speed onboarding.
• Close the loop: convert customer patterns into product feedback for Product/Engineering.

Skills

API docs reading

API calls

Basic coding

AI tools fluency

Explain concepts

Customer-focused

Founder mindset

Job description

Sent, Inc. is seeking a proactive Customer Solutions professional to guide post-sales customers through API setup, onboarding, and enabling live traffic.

You will become a trusted technical partner, helping customers maximize value across messaging and voice channels while identifying expansion opportunities and preventing churn. You will collaborate with Product and Engineering, translate customer needs into actionable feedback, and contribute to scalable playbooks and automation to accelerate