Software Engineer (AI)

Title: Software Engineer (AI) Location: New York, NY, US / Remote ## **About Numeral:** * Numeral is transforming how taxes get done. Digital businesses are currently bogged down by a painful web of regulations across 47 states and 50+ countries. We’re eliminating this burden so teams can focus on their core mission. * We’re the largest and fastest growing AI-native tax solution. Started in 2023, Numeral has raised over $57M from Benchmark, Mayfield, Y-Combinator, and many others. We now serve over 2,500 paying customers and have more than tripled our revenue every year in our history. * For this role we’re primarily hiring in our NY office, but do hire remotely in some cases ## **About the role:** We’re looking for a **Foundational AI Engineer** who thrives in ambiguity, enjoys building real-world AI systems end-to-end, and wants to define the technical and architectural foundations of an early-stage startup. This is a hands-on role for someone who wants to design and implement LLM-powered automation systems: model orchestration, tool calling, MCP-style integrations, agentic workflows, and automation-driven tooling. ## **What you’ll do:** * Design, build, and operate production AI systems, including tool-calling agents, model orchestration layers, and RAG. * Implement and maintain AI integrations using modern frameworks, MCP servers, and external model providers. * Build and evolve scalable backend services and APIs that power automated workflows and customer-facing features. * Think in automation and workflows: design systems using tools like n8n, Claude Code-style agents, or similar orchestration approaches. * Make architectural decisions that balance latency, cost, reliability, and iteration speed. * Own infrastructure, observability, and performance for both AI and non-AI services. * Collaborate closely with product, design, and data teams to ship features that solve real customer problems. * Help define engineering best practices, AI safety/reliability norms, and our overall technical culture. ## **What you’ll bring:** * 7+ years of experience building products in high-growth environments. * 2+ years of experience building with LLMs. * Avid use of state-of-the-art AI development tools such as Cursor and Claude Code. * Fluency with backend technologies like PostgreSQL, Redis, and cloud services (AWS preferred). * Experience with frontend development, especially TypeScript and its ecosystem. * Strong product sense, balancing performance, flexibility, and speed. * Comfortable working in dynamic startup environments with evolving needs. * Excellent communication and collaboration skills. * Startup mindset: Not scared of ambiguity and hungry for rapid growth * Intensity & Ownership: This is not a 9-5 — we’re scaling rapidly and have a massive opportunity ahead of us. * Customer Obsession: You deeply care about the user experience and solving their problems ## **Even better:** * Experience in payments, tax, accounting, or regulatory tech. * Experience with automation tools (n8n, Zapier-style systems, workflow engines) or building internal automation platforms. * Familiarity with MCPs, tool calls, agent frameworks, or model orchestration patterns. * Understanding of vector databases and concepts (such as Pinecone, HNSW). ## **What we offer:** * Competitive salary and equity - you’ll share directly in the company’s success * Full medical, dental, and vision coverage * Wellness perks like Headspace and the Peloton One App * 401(k) to help you build long-term financial security * Lunch and snacks when you’re in the office * Regular team offsites and company events as we grow * A culture built on ownership - your work matters and people will see it!