> Markdown version of [/jobs/ext/4618553-sr-software-engineer-ai-agents](https://www.wearedevelopers.com/jobs/ext/4618553-sr-software-engineer-ai-agents). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. Software Engineer (AI Agents) - **Company:** Arcadia Inc. - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Data Mining, Software Engineering, Large Language Models, Backend, Agentic-AI, AI Platforms, Kubernetes, Front End Software Development, Data Pipelines, Web Api - **Published:** November 7, 2026 - **Apply:** https://www.juju.com/job/28_25303_fa43ae0f942104a4118432bad0cc7bd5 ## About the Role * 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, * 6+ 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, * Experience with retrieval pipelines, orchestration frameworks, or structured data extraction * Background in logistics, operations, or other data-intensive domains * Prior experience at an early-stage startup ## Description We're hiring 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, * 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