Customer Success Engineer

Resend is hiring a Customer Success Engineer for a remote role open to applicants in United States. It pays $120k-$140k a year and Level rates it ; you can apply on Resend.

Level's read on this job

Works on AI ●●●○ is how Level rates this customer service role: the daily work is on AI products, without building the model.
The listed pay starts 20% above the typical customer service posting on Level.
The posting lists this role as remote.
Tools and skills the posting cites include Next Js, Plain and Raycast.
Level lists 13 other open roles at Resend.

AI in this role

Support developer customers and train an AI support agent by refining prompts, adding tools, and running evaluations.

next-jsplainraycastretoolnotion

customer-supportprompt-engineeringevaluationautomation

Resend is growing fast, and there are now over 4 million developers using it. Many of these customers are coming for a superior support experience. We're looking to extend our cracked Success team to support the next wave of developers.

As our user base continues to grow, we have increased demand across all time zones and days of the week.

This role is fully remote based in UTC-3 to UTC-8 time zones, with some expected travel for team offsites, conferences, meetups, and more.

In this role, you will…

Be the front-line of customer requests
Debug, report, and ship scoped fixes for bugs and regressions
Turn recurring tickets into permanent fixes by shipping docs, product PRs, or agent improvements so the same question doesn't come back
Train and improve our AI support agent by refining prompts, adding tools, and running evals so more tickets resolve before reaching a human
Create guides and examples that showcase what's possible with Resend
Proactively build relationships and identify potential papercuts for customers
Advocate for customer needs to the greater Resend team

You will be a great fit if you...

Love helping solve problems for developers
Can handle and perform under customer pressure
Have 3-5 years of technical support or success experience
You've scaled support at a high-growth company, using automation and AI to grow resolution capacity faster than headcount
Have experience improving email deliverability

What it means to join the team:

Honest and low-ego team
Autonomy to “just ship it”
Ownership of problems and solutions
100% remote team with flexible working schedules
Modern tech stack (Next.js, Plain, Raycast, Retool, Notion, etc.)
Comp: $120,000 - $140,000 USD, commensurate with location and experience

Learn more about how we work:

About Resend

We are building the modern email sending platform for developers. We care deeply about quality, craft, and the developer experience.

Our fully remote team of 50 spans 15 countries and counting. We're backed by a16z, Y Combinator, and others. Meet the humans →

How we rate this

Customer Success Engineer at Resend rates 65 out of 100 for how much of the daily work is AI. That makes it Works on AI (AI Level 3 of 4). The level is about AI in the job, not seniority.

Classification

Works on AI. The daily work is on AI products, without building the model.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Key facts

Customer Success Engineer is an open job at Resend.
Level rates this role AI Level 3 of 4: Works on AI.
The listed salary is $120k-$140k a year.
The role is based in Americas and is marked remote.
The job was posted on July 20, 2026.
Seniority: mid.
Applications are handled by Resend. Apply on Resend

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

Customer SupportPrompt engineeringEvaluationAutomationNext JsPlainRaycastRetool

Also common in customer service jobs at this level

AI agents LLM Generative AI SQL AWS Python

Pay

This job starts at: $120k
Typical customer service job: $100k

This posting starts 20% above the typical customer service job. See customer service jobs

Questions you could be asked

Tell me about a project where customer support was part of your work. What did you do?
How do you structure and test a prompt to get consistent output from a language model?
Tell me about a project where evaluation was part of your work. What did you do?
Tell me about a project where automation was part of your work. What did you do?
Walk me through how you've used Next Js in your day-to-day work.

Adapt your resume

List these exact terms on your resume: Customer Support, Prompt engineering, Evaluation, Automation, and Next Js. An applicant tracking system matches the wording, not the idea.
Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
Show where AI is part of your daily process, not a one-off project. This role expects it to be a running habit.

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