Sales Engineer
Stainlessapi
Posted: November 4, 2025
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Quick Summary
As a Sales Engineer for Sales, you'll be the technical partner to AEs on high-priority cycles, running demos, leading technical discovery, and building light prototypes.
Required Skills
Job Description
About Stainless
Stainless is a fast-growing tech startup building the future of APIs. Our customers include industry leaders like OpenAI, Anthropic, and Cloudflare.
We have raised over $35 million from a16z, Sequoia, and founders/C-levels from Stripe, Datadog, Segment, Linear, and more.
We are headquartered in NYC, just west of SoHo, and are a team of ~60 strong expecting to double in the next ~9 to 12 months.
About the role
As our first Sales Engineer for Sales, you’ll be the technical partner to AEs on high‑priority cycles. You’ll run crisp demos, lead technical discovery, build light POCs that de‑risk evaluations, and translate prospect needs into clear feedback for Product and Engineering. This role sits at the intersection of sales and engineering and is high‑leverage for landing and expanding strategic accounts.
What you’ll do
• Partner with AEs to plan and run technical discovery, demos, and proof‑of‑concepts
• Build minimal, targeted sample apps and snippets across programming languages to unblock evaluations
• Define and track technical success criteria for trials. Own timelines and next steps. Build out the playbook Stainless uses for Technical POC’s.
• Troubleshoot API and SDK issues quickly. Produce clean repros and guide prospects to “first successful call” fast
• Create and maintain a library of reusable demos, scripts, and objection‑handling notes
• Capture product gaps clearly with repros and priority. Close the loop with prospects when fixed
• Contribute public‑facing how‑tos or sample repos that strengthen top‑of‑funnel and mid‑funnel
Who you are
• 5+ years in Sales Engineering at a devtools or API‑first company
• Strong with APIs, OpenAPI, auth, and at least one major language. Comfortable context‑switching
• Excellent communicator. Clear written follow‑ups, crisp demos, credible with ICs and leaders
• Organized project manager for evaluations and mini‑POCs. Bias to action and high quality bar
Benefits
• We offer competitive salary and generous equity grants.
• Great healthcare coverage options (e.g., fully covered platinum plans).
• Paid commuter benefits & similar.
• Paid team lunch/meals during workdays.
• Flexible PTO plus 3 weeks of company-wide vacation a year (2 weeks in December, 1 week at the end of the summer).
• Flexible WFH and 1 month fully remote per year ("remote February").