Senior Software Engineer II - AI

Role Description

The Sr. Software Engineer II - AI will lead the build of GenAI-powered product experiences and the shared AI platform infrastructure that powers them. This includes:

• RAG pipelines over the iHerb catalog and customer reviews
• LLM-driven personalization
• A conversational Wellness Agent
• Agentic workflow systems
• The evals and MLOps layer that makes AI features production-grade and repeatable

Specializations within this track include:

• RAG and personalization
• Agent framework and tool use
• Evals and guardrails
• LLM application development for internal business functions such as marketing automation and BI agents

Job Expectations:

• Design, build, and operate production AI features: RAG pipelines, LLM-driven recommendations, conversational agents, or agentic workflow automation
• Build the shared AI platform layer: retrieval infrastructure, eval frameworks, model monitoring, guardrails, and observability
• Write LLM applications and integrations with marketing platforms, BI tools, or customer-facing product surfaces
• Evaluate model and feature quality using structured eval frameworks; iterate on prompts, retrieval strategies, and model selection using data
• Use AI-driven SDLC tooling such as Claude Code as a daily practice for both AI and non-AI code
• Coordinate with the Personalization team to align GenAI product features with existing ML personalization signals
• Document AI system design decisions, evaluation results, and operational lessons in the shared knowledge base
• Own the observability of AI systems you build: latency, cost, quality drift, and error rates; participate in on-call rotation and respond to production incidents

The duties and responsibilities described above may provide only a partial description of this position. This is not an exhaustive list of all aspects of the job. Other duties and responsibilities not outlined in this document may be added as necessary or desirable, with or without notice.

Qualifications

• AI-driven SDLC: hands-on experience shipping production code with AI-assisted development tools such as Claude Code, GitHub Copilot, or Cursor
• Full-stack awareness: comfortable contributing across layers of the stack when needed
• Production ownership: experience owning features end-to-end from spec through deployment, observability, and on-call
• Code quality fundamentals: strong grasp of software design principles, automated testing, code review, and CI/CD
• Fully autonomous; drives technical decisions within the team; mentors junior engineers
• Python proficiency; comfortable building and operating production LLM applications
• Hands-on experience with at least one specialization: RAG and retrieval systems, LLM evaluation, agentic frameworks (LangChain, LlamaIndex, or similar), or LLM-based workflow automation
• Understanding of prompt engineering, context window management, and LLM output quality tradeoffs
• Familiarity with vector databases, embedding models, or semantic search
• High degree of accuracy and attention to detail
• Excellent organization skills and ability to multi-task

Requirements

• Generally requires a minimum of 10+ years of software engineering experience
• Bachelor’s Degree in Computer Science or related field preferred, or a combination of education and equivalent work experience

Benefits

• Employees (and their families) that meet eligibility criteria as outlined in applicable plan documents are eligible to participate in our medical, dental, vision, and basic life insurance programs
• May enroll in our company’s 401(k) plan
• Eligible for Time Off and Paid Sick Leave pursuant to the company’s policies
• Paid holidays throughout the calendar year
• Hired applicant may be awarded Restricted Stock Units and receive annual bonuses pursuant to eligibility and performance criteria defined in the respective plan documents and policies

For more information on iHerb benefits, visit us at iHerbBenefits.com .