Full-Stack Engineer

South San Francisco, California

Arcade AI, Inc
Apply for this Job
Everyone's talking about AI. But here's the truth: ChatGPT can't send your emails. It can't book your flights. It can't even order you lunch.

Why? Because AI is trapped in a chat box. It can't take real actions in the real world.

We are changing that forever. We're not just building another AI company - we're creating the infrastructure that will power every AI application you'll use in the future.

The Revolution Needs You

Every AI app needs agentic "tools" - special functions that let AI models take real actions. Without tools, AI can only chat. With tools, AI can actually do things. We're building the definitive tools catalog and tool-calling platform that will unlock AI's true potential. Think Zapier for AI Actions. Think Auth0 for AI. Think really big.

Why This Is The Opportunity of a Lifetime
  • Founder-Market Fit : Our CEO previously founded Stormpath (acquired by Okta), where he created the first Authentication API for developers. He's done this before - and this time the market is 10x bigger. Our CTO led the vector database team at Redis, shipped 100+ LLM applications, and is a contributor to LangChain and LlamaIndex. He knows this space better than anyone.
  • Dream Team : We've assembled authentication, integrations, distributed systems, and AI experts from Okta, Redis, Microsoft, Splunk, Ngrok, Google, Airbyte, Disney, and HPE who've built and founded multiple successful developer platforms.
  • Perfect Timing : We're at the inflection point of AI adoption. The biggest problem isn't better models - it's connecting AI to real-world actions. That's us.
  • Massive Market : We're building critical infrastructure for the biggest technological shift of our generation. Every AI app will need what we're building.
  • Backed By The Best: Our investors have backed Databricks, Clickhouse, MongoDB, Perplexity, Cohere, ScaleAI, Confluent, Elastic, and Firebase. They see what we see - this is going to be huge.
The Challenge

Build the runtime and registry for AI tools. Define both how AI interacts with the world, and how humans build and manage those tools. Create production-grade integrations, and the services & toolkits that run them. We are building both a SaaS application and allowing folks to run part of that infrastructure on-site via hybrid deployments. As an early member of a startup, you'll be working up-and-down the stack - from infrastructure to front-end, and everything in between. We build our software with Go, Python, and Typescript.

What You'll Do
  • Design, build, test, and deploy high-performance, secure, production-grade software
  • Build the infrastructure to manage the backplane for all future AI tools
  • Create integrations with major platforms (Google Workspace, Microsoft 365, Slack, etc.)
  • Develop SDKs and frameworks that make it easy for other developers to build custom tools
  • Help set industry standards for tool calling and authorization (for example, we helped write the MCP authorization spec)
  • Shape the roadmap for the team
  • Build leverage (via AI) - projects that take a week today should take a day next time.
  • Share your work with our customers and community
Required Skills
  • 10+ years of software engineering experience comprising of:
    • 5+ years of backend experience with either Python, Go, Ruby, Typescript, or a similar language
    • 2+ years of frontend experience with Typescript and a relevant frontend framework (e.g. React)
  • Strong experience building and maintaining production APIs
  • Track record of writing clean, well-documented, testable code
  • Insatiable desire to ship
  • User-centered approach to designing developer-centric products
Bonus Points
  • Experience building developer tools or SDKs
  • Familiarity with LLMs and AI frameworks (Langchain, LlamaIndex)
  • Open-source contributions
  • Experience with high-scale distributed systems
  • Experience leading teams and mentoring more junior developers
  • You've been a startup founder or early-state startup employee before

Join The Movement

We're not just building a product - we're leading a movement to transform AI from just chatbots to agents that can take actions against real systems. This is your chance to be at the forefront of that revolution.

If you want to look back in 5 years and say, "I helped build that", then we want to talk to you.

Ready to make AI actually useful? Apply Now
Date Posted: 07 May 2025
Apply for this Job