Senior Front End Engineer

Arcade • San Francisco, CA

12d • Onsite

About The Position

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. NOTE: This role is based in San Francisco and requires 5 days a week in the office. Please only apply if you can meet that requirement and or are willing to relocate to the San Francisco California area. 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 No matter how effective our MCP & AI tool-calling platform is, if folks can't find it or understand how to use it, we are dead in the water. We need to have the best developer experience possbile, and that includes our docs, onboarding flow, and learning materials. We are building a brand synonymous with MCP that can stand along side the LLM giants. As an engineer deployed to our Growth team (Sales, Marketing, and Developer Relations) you'll be working on our marketing site and landing pages with the goal of teaching and sharing via example projects and agents. This role is primarily focused on expanding our growth funnel, but as an early member of a startup, you’ll be working up-and-down the stack. We build our sites in Typescript, and expect you to be a pro in modern react and the front-end ecosystem. We also use tools like Webflow and Lovable which you will manage. We are looking for people who constantly ship and don't get stuck - we are looking for folks who are always learning and able to apply that knowledge to their work and teach it to the team.

Requirements

• An insatiable desire to ship.
• 4+ years of frontend software engineering experience using react and modern frameworks like Tanstack and Next.js
• Experience contributing to design systems and building assets with tools like Figma or generative AI.
• Experience implementing analytics tools (e.g. Posthog, Mixpanel, Amplitude, Segment, Google Analytics)
• Proficiency with SQL and data analysis
• Experience with A/B testing methodologies and statistical significance
• Familiarity with marketing tools and APIs (email platforms, CRMs, ad platforms)
• Understanding of SEO technical requirements and web performance optimization
• Comfort on the command line as well as with front-end infrastructure providers like Vercel and Cloudflare.
• Track record of writing clean, well-documented, well-tested code.
• User-centered approach to designing developer-centric products and tools.

Nice To Haves

• Interaction or Graphic Design skills
• Familiarity with LLMs and AI frameworks (Langchain, LlamaIndex, etc)
• Open-source contributions
• You’ve been at a startup before and love it

Responsibilities

• Design, build, and maintain growth infrastructure including referral systems, onboarding flows, tracking systems, and conversion optimization tools.
• Run rapid experimentation cycles across acquisition channels, activation flows, and retention mechanisms.
• Build internal tools, dashboards, and agents to enable data-driven decision making.
• Create automated marketing tools and integrations to power campaigns for us and our partners.
• Identify and exploit viral loops and network effects in the product
• Share your work with our customers and community, building our (and your) brand.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed