Senior Software Engineer (AI Products)

Mutiny • New York City, NY

27d • Onsite

About The Position

The #1 priority of every CEO is to grow the company. But the business teams responsible for revenue are stuck in a soul-crushing web of dependencies that prevent them from growing. Marketing has a winning idea but design and engineering can't prioritize building the campaign. Sales needs a custom business case to close a deal but marketing is slammed. Every dependency is revenue missed. We built Mutiny to solve this problem. Mutiny is the self-improving AI infrastructure for GTM teams to execute faster and close more revenue. Our ambition: do for revenue velocity what Cursor and Claude Code did for engineering velocity. With Mutiny, everyone in sales and marketing gets a bench of GTM athletes that handle any work across their revenue motion and learn from what's actually moved their deals. From breaking into new verticals and personas to personalizing every interaction with every customer, Mutiny takes on the manual work so your team can run faster. In April we re-launched the product as an agent-first platform. Anthropic showcased us as a leader in AI GTM. MRR is growing at 100%+ month-over-month, 10x faster than any product we have launched, with customers like Rippling, Uber, Snowflake, Zendesk, and Gusto. Now we're ramping up the team to help us build a generational company. The opportunity Most engineers spend their career making predictable systems faster. You'll spend yours making non-deterministic ones trustworthy. As a senior engineer on our AI product team, you'll architect the Campaign Builder and Agent experiences marketers and sellers open every day to go from idea to personalized assets in minutes. You'll partner directly with product, design, and the founders to define what an agent-first GTM platform should feel like, and your calls on architecture, evals, and guardrails compound across thousands of customer accounts. This role is in person in New York City, five days a week, and we ship weekly.

Requirements

• Full-stack experience (prompt to backend to UI).
• Shipped on top of LLMs in production (RAG, evals, agent frameworks, coding agents).
• Strong in a backend language (Python, TypeScript, Kotlin, Ruby).
• Ability to write code that remains readable.
• Clear communicator, able to explain technical decisions in writing and in real time.
• Ability to prototype hard interactions in ambiguity.
• Ability to raise the bar for engineers through code review and mentorship.

Responsibilities

• Architect and ship the Campaign Builder and Agent experiences end-to-end.
• Make non-deterministic models feel deterministic at the surface by building retries, fallbacks, and orchestration.
• Define how we measure quality, catch regressions, and keep brand and tone consistent across thousands of customer accounts.
• Obsess over AI product latency and the loop between intent and output, using coding agents and agent networks to ship faster.
• Partner with product and design, prototype hard interactions, and decide what ships.
• Shape the next year of development through code review, hiring, and architectural decisions.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed