# Senior Software Engineer - Company: [Moonshot Ai]() - Location: New York City - Team: Engineering - Employment type: Full Time - Salary: $150K – $210K - Posted: January 23, 2026 ## Job description ## **Why Moonshot AI?** Imagine websites that **rebuild themselves on autopilot** to sell more, convert better, and grow faster. At **Moonshot AI**, we’re making that happen — merging **generative AI, large-scale data pipelines, and experimentation** into a self-evolving web. We’re a **well-funded, very early-stage startup** with a massive vision. Joining now means you’re not just an employee — you’re helping **set the technical and cultural DNA** of the company. If you’ve ever wanted the autonomy of a founder with the backing of top-tier investors, this is it. ## **What You’ll Build & Achieve** As our Senior Fullstack Engineer, you’ll be **hands-on across the stack** — designing, building, and scaling systems that power our AI-driven platform. Expect autonomy, speed, and a ton of ownership. * **Architect and build scalable systems** — from backend APIs to frontend dashboards — that process tens of millions of web events per day. * **Design large-scale data infrastructure** that explains how websites are built, why they perform the way they do, and how to optimize them. * **Train and integrate LLMs** into production to automatically hypothesize, generate, and validate website variants. * **Shape engineering culture & practices** — your fingerprints will be all over our tech stack, architecture, and team processes. * **Experiment, prototype, and iterate** — research + product + AI + scale, all at once. This isn’t about maintaining yet another SaaS app — it’s about **building an AI engine that redefines how digital products are created.** ## **Who We’re Looking For** * **A software craftsman** — you write clean, scalable code and know how to ship at speed. * 5+ years fullstack experience (Python, JS, AWS preferred, but not a blocker). * Experience leading teams or driving major projects. * Background in CS, EE, Math, or equivalent hands-on mastery. * An **AI enthusiast** who wants to build with LLMs and shape how they’re applied in the real world. ### **Bonus Points:** * Startup experience (you thrive in zero-to-one). * Experience training or deploying ML models in production. ## **At Moonshot, culture isn’t fluff — it’s how we win** * **Curiosity & Growth** → We challenge assumptions, ask big questions, and push for mastery. * **Low Ego** → No ivory towers — everyone gets their hands dirty. * **Ownership** → You own outcomes, not just outputs. Shipping is step one; impact is the goal. * **Trust** → Radical transparency and accountability, even when it’s hard. * **Agility** → We move fast, test faster, and aren’t afraid to pivot. * **This Is Your Company** → Ideas fuel breakthroughs. We’re all builders here. * **Enjoy the Ride** → Startups are a rollercoaster — we create good vibes and celebrate wins together. ## **What We Offer** * **Competitive compensation** * **Meaningful equity** — real ownership in Moonshot AI’s success. * **Full health coverage** (medical, dental, vision) for you + your family. * **Unlimited PTO** — we trust you to take the time you need. * **Tax free commuter and parking benefits** * **Office-first culture (4 days/week)** — Midtown Manhattan, in the middle of it all. * **Work directly with the founding team** — your impact is immediate, visible, and career-defining. * **Free One Medical** Membership * **401k** ## Apply [Apply on Moonshot Ai]() Canonical job page: