Senior Software Engineer (AI Agents)

Arcadia; New York (NY); On-site; USD 150,000 - 230,000; Full time

Job summary

Arcadia seeks a Senior Software Engineer (AI Agents) to build core systems for an intelligent automation platform used in complex industries. You’ll design and ship production-grade LLM systems, contribute across the stack, and influence product and architectural decisions.

This high-ownership role involves close collaboration with the founding team and shaping technology that scales to real-world operational problems.

Qualifications

• 5+ years of professional software engineering experience.
• Experience designing and shipping production backend systems and APIs.
• Hands-on experience building or integrating LLM-powered or agent-based systems.
• Ability to design scalable services and data pipelines.
• Strong technical judgment and ability to make sound tradeoffs.
• Clear communicator who can collaborate cross-functionally and with customers.

Responsibilities

• Build and scale the core automation and AI agent systems that power the platform.
• Work across the stack: backend APIs, data pipelines, orchestration layers, and frontend workflows.
• Design and deploy agent-based LLM components for reasoning, extraction, and decision-making.
• Collaborate directly with users to understand workflows and ship high-impact solutions.
• Contribute to architecture discussions and help drive key technical decisions.
• Write clean, reliable, maintainable code with strong engineering fundamentals.
• Support roadmap execution and help elevate engineering standards as the team grows.

Skills

Senior-level engineer

End-to-end ownership

Backend APIs

AI agents / LLM

Data pipelines

Distributed systems

Clear communicator

Job description

We're looking for a Senior Software Engineer (AI Agents) to build the core systems behind an intelligent automation platform used in highly complex, operations-heavy industries. You’ll design and ship production-grade LLM systems, contribute across the stack, and play a key role in evolving both the product and technical architecture.

This is a high-ownership, high-impact role where you’ll collaborate closely with the founding team, contribute to major architectural decisions, and build technology that solves real-world operational problems at scale.

What You’ll Do

• Build and scale the core automation and AI agent systems that power the platform

• Work across the stack: backend APIs, data pipelines, orchestration layers, and frontend workflows

• Design and deploy agent-based LLM components for reasoning, extraction, and decision-making

• Collaborate directly with users to understand workflows and ship high-impact solutions

• Contribute to architecture discussions and help drive key technical decisions

• Write clean, reliable, maintainable code with strong engineering fundamentals

• Support roadmap execution and help elevate engineering standards as the team grows

Who You Are

• A senior-level engineer with experience in high-growth or startup environments

• Comfortable owning projects end-to-end with minimal oversight

• Strong in 0→1 product development and able to operate in ambiguous problem spaces

• Genuinely interested in applied AI and complex operational workflows

• Pragmatic, execution-focused, and thoughtful about long-term system design

What We’re Looking For

• 5+ years of professional software engineering experience

• Experience designing and shipping production backend systems and APIs

• Hands-on experience building or integrating LLM-powered or agent-based systems

• Ability to design scalable services and data pipelines

• Strong technical judgment and ability to make sound tradeoffs

• Clear communicator who can collaborate cross-functionally and with customers

Bonus Points

• Experience with retrieval pipelines, orchestration frameworks, or structured data extraction

• Prior experience at an early-stage startup

Why You’ll Love This Role

• Meaningful equity and ownership at a high-growth startup

• Opportunity to help shape the core architecture of a category-defining AI platform

• Direct collaboration with founders on product and technical strategy

• High-trust environment with real autonomy

• The chance to modernize a critical global industry with automation and intelligent systems