Senior Software Engineer (AI Infrastructure)

Senior Software Engineer (AI Infrastructure)New York City | On-site | $180,000 to $250,000 + EquityIf you're the kind of engineer who enjoys building systems that haven't been built before, this is worth a look.Our client is a venture-backed AI startup tackling one of the hardest data problems in their industry. Their platform already powers hundreds of customers and some of the biggest names in AI, with demand growing rapidly after a major strategic partnership announced this year.This isn't another chatbot company. You'll be building the data and infrastructure layer that enables frontier AI systems to reason over millions of complex documents at scale.What you'll work onBuild large-scale Python data pipelines that enrich and connect millions of documentsDesign systems that automatically extract structured metadata using AI rather than manual reviewOwn highly reliable ingestion platforms and web scraping infrastructureDevelop APIs, MCP servers and real-time services powering AI productsImprove search, retrieval and evaluation systems using modern LLM toolingHelp shape technical architecture as one of a small team of highly experienced engineersTech StackPythonPostgreSQLPrefectDockerGCPElasticsearchTypeScriptWhat we're looking forStrong Python engineer with excellent backend fundamentalsExperience building production software in a startup or high-growth technology companyComfortable owning products and infrastructure from idea through deploymentExperience with distributed systems, APIs and data pipelinesFamiliar with modern AI tooling, LLMs and agentic workflowsEngineers who enjoy building side projects and experimenting with new technology outside work are especially encouraged to applyWhy join?Greenfield engineering problems with genuine technical ownershipSmall team where every engineer has significant influenceWork directly with cutting-edge AI infrastructure rather than building another wrapper around an LLMCompetitive salary plus meaningful equityModern engineering culture with an emphasis on craftsmanship, autonomy and shipping quicklyBeautiful Manhattan office with an in-person, collaborative environmentIf you're interested in solving difficult engineering problems and want to build infrastructure that will underpin the next generation of AI products, I'd be happy to tell you more.