Senior Software Engineer – Agent Developer Platform

Overview

Senior Software Engineer to build Alpaca's agent-facing developer platform, including MCP servers, tools, skills, and the APIs behind them, used by agents and partners to integrate with Alpaca.

What you'll do

• Design and build Alpaca's agent-facing developer platform: MCP servers, tools, skills, and the APIs behind them.
• Evolve that platform as the MCP protocol and connector, plugin, and skill standards change.
• Build new APIs that make trading and account capabilities available to apps and agents.
• Decide which components the platform renders, so developers and partners build apps faster from shared building blocks.
• Keep Alpaca's execution model current with the MCP protocol and with connector, plugin, and skill standards, and translate what changes into the application architecture of the developer platform.
• Own production reliability and quality for the services you build.
• Mentor engineers and raise the quality of design and implementation in this area.

What you'll need

• 5+ years of software engineering experience, with ownership of production systems that other developers use.
• Shipped a developer-facing API, SDK, or platform as a primary contributor.
• Enough MCP architecture to work with stateless and stateful behavior, and experience building to MCP, or to connector, plugin, or skill standards, as they have changed in production.
• Strong API design, including schemas, compatibility, and responses other developers can rely on.
• Proficiency in Python or TypeScript, and a willingness to work primarily in Go.
• Strong architectural judgment, with a record of shipping while requirements are still being defined.
• Clear communication with engineers, product, compliance, and risk partners.

Nice to have

• Experience shipping developer-facing tools, SDKs, or MCP servers.
• Experience building agents with a framework such as LangChain.
• Experience or understanding of financial markets.
• Production experience with Go.
• Experience working at a startup.
• Experience working remotely.

Details

• Remote, Europe or Americas.