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Alpaca is a US-headquartered fintech infrastructure company serving hundreds of financial institutions globally with institutional-grade APIs for stocks, ETFs, options, crypto, and fixed income trading. The company is backed by $400M in funding from top-tier investors including Spark Capital, Tribe Capital, and Y Combinator, with a globally distributed team of 400+ members.
As Senior AI Platform Engineer, you will own the technical capability layer for Alpaca's new AI Enablement function, moving the company from scattered AI experimentation to durable, company-wide productivity gains. You will build and maintain platform infrastructure, connectors, execution patterns, and self-service tooling that enables engineering and business teams to use AI safely at scale.
Key responsibilities include:
- Owning the connector and service integration layer powering AI workflows across the company
- Designing and shipping execution environments for agents and autonomous AI workflows, including isolation boundaries and access controls
- Building reusable platform services, golden paths, and self-service templates to reduce setup friction
- Productizing onboarding for both developers and non-developers without manual intervention
- Defining and enforcing technical standards for agent execution, evaluation loops, and deployment
- Partnering with Security and IT to ship deployable patterns for higher-risk AI capabilities
- Owning the AI governance layer: access controls, audit trails, approval criteria, and deployment boundaries
- Setting reliability, observability, and operational standards for AI-specific infrastructure
- Acting as technical escalation point for onboarding and platform issues
- Reducing company dependence on individual heroics by turning exception handling into repeatable paths
This role requires hands-on experience building with agentic AI systems—LLM-powered agents, tool use, evaluation loops, and autonomous workflow execution. You should be comfortable making opinionated decisions about execution patterns, isolation boundaries, and what "safe and reliable" means for agents with real tool access. This is a startup-inside-a-scaleup role requiring speed with limited resources while meeting regulated fintech standards. You will work closely with DevOps, Security, IT, and engineering teams across the company.
