Serko Ltd.

Principal Engineer – Agentic AI Applications

Serko Ltd.

full-time

Posted on:

Location Type: Hybrid

Location: SeattleWashingtonUnited States

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Salary

💰 $168,000 - $230,000 per year

Job Level

About the role

  • Own the end-to-end technical architecture for agentic systems, including multi-agent orchestration, memory management, and reasoning pipelines.
  • Implement robust infrastructure to handle non-deterministic loops, including automated circuit-breakers, latency-aware orchestration (targeting P99 SLAs), and granular token/cost-observability.
  • Define engineering patterns, design standards, and best practices for agentic application development across the entire organization.
  • Mentor and grow Senior engineers; conduct deep-dive architecture reviews and drive high-stakes technical decision-making and be instrumental in the hiring process.
  • Partner with AI Ops to ensure agentic workloads are efficiently built, served, and monitored with state-of-the-art observability.

Requirements

  • 12+ years of software engineering experience, with at least 4+ years in technical leadership or principal-level roles.
  • Deep hands-on experience shipping LLM-powered or agentic systems to production (utilizing frameworks like LangGraph, AutoGen, CrewAI, or custom-built runtimes).
  • A proven track record of architecting distributed, high-availability systems. You understand that "it worked on my machine" is not the same as "it works at scale."
  • Mastery of Python and modern backend frameworks. Deep familiarity with RAG pipelines, vector databases, tool-calling APIs, and multi-step reasoning. (TypeScript/Node.js is a plus).
  • Ability to distill complex "black box" AI concepts into clear technical roadmaps for executive stakeholders and cross-functional partners.
  • A desire to influence org-wide engineering culture, prioritizing code quality, observability, and rigorous testing in an AI-first world.
Benefits
  • A competitive base pay
  • Medical Benefits
  • Discretionary incentive plan based on individual and company performance
  • Focus on development: Access to a learning & development platform and opportunity for you to own your career pathways
  • Flexible work policy
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
software engineeringtechnical leadershiparchitecting distributed systemsPythonbackend frameworksRAG pipelinesvector databasestool-calling APIsmulti-step reasoningLLM-powered systems
Soft Skills
mentoringtechnical decision-makingcommunicationinfluencing engineering culturedistilling complex conceptscollaborationorganizational skillsleadership