Principal AI Engineer
  • Fixity Technologies
2 Days Ago
NA
C2C
Concord-CA, San Francisco-CA
7-10 Years
Required Skills: AI/ML , Python, agentic AI frameworks, GenAI
Job Description
Key Responsibilities 

Technical Leadership & Architecture 

  • Own and define enterprisegrade GenAI architectures, including RAG pipelines, agentic workflows, prompt orchestration, and multi‑model routing strategies. 
  • Drive production readiness for GenAI solutions, ensuring scalability, resilience, observability, and cost efficiency. 
  • Lead complex architectural decisions spanning data ingestion, vector databases, model selection, guardrails, latency optimization, and API scalability
  • Establish reference architectures and reusable patterns to accelerate GenAI adoption across Lines of Business. 
  • Enterprise UseCase Delivery (FDE Model) 
  • Act as a Forward Deployed Principal Engineer, partnering directly with business and product teams to deliver high‑impact GenAI use cases from ideation to production. 
  • Translate business problems into welldefined AI system designs and NFRs, ensuring measurable outcomes. 
  • Troubleshoot and resolve complex production issues across non‑prod and prod environments. 
  • Influence platform roadmap by feeding real‑world use‑case requirements back into central AI services (e.g., Tachyon). 
  • Governance, Risk & Compliance 
  • Ensure all AI solutions align with risk, cyber, and model governance standards, including AIRR, data protection, and guardrails. 
  • Partner with Cyber, MRM, Legal, and Risk teams to design compliant AI patterns without slowing delivery. 
  • Embed security, privacy, and ethical AI principles into solution design by default. 
  • Organizational Influence & Mentorship 
  • Serve as a recognized GenAI expert across the enterprise—regularly consulted by engineering, architecture, and leadership teams. 
  • Mentor senior and staff‑level engineers; raise the technical bar across teams. 
  • Contribute to internal communities of practice, architecture reviews, and executive‑level technical discussions. 
  • Represent GenAI capabilities in internal innovation forums and knowledge‑sharing sessions 

 

Required Qualifications 
  • 7+ years of software engineering experience, with significant depth in AI/ML or dataintensive systems
  • 2+ Years of experience in Python programming language. 
  • 2+ Proven experience designing and delivering productionscale Generative AI systems in an enterprise environment. 
  • 2+ years of experience in: 
  • LLMs, prompt engineering, and RAG architecture 
  • Vector databases and semantic search 
  • API‑driven, cloud‑native architectures 
  • Distributed systems and performance optimization 

 

Preferred Qualifications 
  • Strong understanding of nonfunctional requirements: security, scalability, resiliency, observability, and cost management. 
  • Demonstrated Principallevel impact: influence across multiple teams, platforms, or business units. 
  • Experience operating in highly regulated environments (financial services strongly preferred). 
  • Hands‑on experience with agentic AI frameworks and multi‑model orchestration. 
  • Prior experience in a Forward Deployed Engineer or embedded engineering model
  • Ability to communicate complex technical concepts clearly to senior executives and nontechnical stakeholders

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