Senior Software Engineer / AI / Full Stack

Arcadia; New York (NY); On-site; USD 140,000 - 190,000; Full time

Job summary

Arcadia, a fast-growing Series C startup, is hiring a Senior Software Engineer who wants ownership over a AI-native product. You will build across the stack, from backend to frontend, and integrate agentic AI into core features.

You'll shape technical direction in a lean team, participate in reviews, and mentor others as you ship high-quality code in a fast-paced environment.

Qualifications

• Strong experience with Python, TypeScript, and React.
• Curiosity and initiative around agentic AI or LLM-powered systems (shipped something, even a side project or POC).
• Startup experience navigating ambiguity and speed.

Responsibilities

• Architect and ship high-quality code across the stack, backend to frontend
• Build agentic AI workflows that are core to the product
• Own product areas end to end, from design through deployment
• Shape technical direction alongside a lean, high-context team
• Champion code quality through reviews and strong engineering practices

Skills

Python

TypeScript

React

Agentic AI curiosity

Startup experience

Job description

This fast-growth Series C startup is going after a massive, outdated industry and rebuilding it from the ground up with AI-native software. Real traction, real revenue, and a team that ships fast. They're hiring a Senior Software Engineer who wants ownership, not tickets: full-stack, agentic AI woven into the core product, and real say in technical direction at a company small enough that your fingerprints are on everything.

If you're the engineer who gets bored maintaining someone else's architecture and would rather build the AI-native version from scratch, this is that.

What you'll do

• Architect and ship high-quality code across the stack, backend to frontend
• Build agentic AI workflows that are core to the product
• Own product areas end to end, from design through deployment
• Shape technical direction alongside a lean, high-context team
• Champion code quality through reviews and strong engineering practices

What you bring

• Strong experience with Python, TypeScript, and React
• Curiosity and initiative around agentic AI or LLM-powered systems (shipped something, even a side project or POC)
• Startup experience navigating ambiguity and speed