Principal Engineer – Agentic AI Applications

🔥 2 minutes ago

🏄 California, Washington – Remote

🏄 California – Remote ☕ Washington – Remote

💵 $168k - $240k / year

⏰ Full Time

🔴 Lead

🧑‍💻 Full-stack Engineer

👻 Ghost score 3%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Serko Ltd.

WebsiteLinkedInAll Job Openings

201 - 500 employees

💼 Consulting

📦 Logistics

✈️ Travel

Consulting • Logistics • Travel

Serko Ltd. is an integrated online travel and expense management technology provider headquartered in New Zealand, with offices in Australia, the United States, China, and India. Its solutions empower organizations to effectively manage their corporate travel programs and expense administration through robust and intuitive online tools. With a focus on the travel industry, Serko offers products like Zeno, which utilizes artificial intelligence to provide personalized travel solutions that simplify booking and enhance user experience. The company serves hundreds of thousands of organizations across more than 180 countries and employs over 360 people globally.

📋 Description

• Define how autonomous AI agents are designed, orchestrated, and deployed at scale • Lead the technical vision and architecture for next-generation agentic AI applications • Own end-to-end architecture for agentic systems, including multi-agent orchestration, memory management, and reasoning pipelines • Implement infrastructure for non-deterministic loops, circuit breakers, latency-aware orchestration, and token/cost observability • Define engineering patterns, design standards, and best practices for agentic application development • Mentor and grow senior engineers • Conduct architecture reviews and drive high-stakes technical decisions • Participate in hiring • Partner with AI Ops to build, serve, and monitor agentic workloads • Collaborate with Product, Research, and Platform teams to deliver reliable, high-availability products

🎯 Requirements

• 12+ years of software engineering experience • At least 4+ years in technical leadership or principal-level roles • Deep hands-on experience shipping LLM-powered or agentic systems to production • Experience with LangGraph, AutoGen, CrewAI, or custom-built runtimes • Proven track record architecting distributed, high-availability systems • Mastery of Python and modern backend frameworks • Deep familiarity with RAG pipelines, vector databases, tool-calling APIs, and multi-step reasoning • Ability to distill complex AI concepts into clear technical roadmaps • Desire to influence organization-wide engineering culture • TypeScript/Node.js is a plus

🏖️ Benefits

• Competitive base pay • Medical Benefits • Discretionary incentive plan based on individual and company performance • Access to a learning & development platform • Opportunity to own your career pathways • Flexible work policy