> Markdown version of [/jobs/ext/2702756-foundational-ai-engineer](https://www.wearedevelopers.com/jobs/ext/2702756-foundational-ai-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Foundational AI Engineer - **Company:** Numeral Two Inc. - **Location:** New York, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Cursor (Graphical User Interface Elements), PostgreSQL, Automation of Marketing, Redis, Cloud Services, Software Safety, TypeScript, Large Language Models, Multi-Agent Systems, Zapier, Backend, Avid Media Composer, Nintex, Front End Software Development - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/software-engineer-ai-numeral-7686144 ## About the Role * 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). ## Description 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. ## Related Videos - [Postgres in the Age of AI (and Devin)](https://www.wearedevelopers.com/videos/1042-postgres-in-the-age-of-ai-and-devin) - [HR ROBO SAPIENS: Decoding AI Agents and Workflow Automation for Modern Recruitment](https://www.wearedevelopers.com/videos/1470-hr-robo-sapiens-decoding-ai-agents-and-workflow-automation-for-modern-recruitment) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Coffee with Developers - Maria Apazoglou](https://www.wearedevelopers.com/videos/1209-coffee-with-developers-maria-apazoglou) - [Create a Programmatic SEO Project Using Next.js and Static Site Generation](https://www.wearedevelopers.com/videos/449-create-a-programmatic-seo-project-using-next-js-and-static-site-generation) - [Accelerating Authentication Architecture: Taking Passwordless to the Next Level](https://www.wearedevelopers.com/videos/733-accelerating-authentication-architecture-taking-passwordless-to-the-next-level) ## Related Articles - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix) - [Graph and AI Trends 2026: Why Is AI Running but Not Yet Delivering?](https://www.wearedevelopers.com/magazine/680-graph-and-ai-trends-2026-why-is-ai-running-but-not-yet-delivering)