Principal AI Engineer | Onsite

Posted Yesterday
Be an Early Applicant
2 Locations
In-Office or Remote
64K-225K Annually
Senior level
Agency • Information Technology
The Role
Lead enterprise-grade Generative AI architecture and delivery: design RAG and agentic workflows, ensure production readiness, partner with business teams to deploy GenAI use cases, enforce governance and security, mentor engineers, and influence platform roadmap.
Summary Generated by Built In

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

Compensation, Benefits and Duration

Minimum Compensation: USD 64,000
Maximum Compensation: USD 225,000
Compensation is based on actual experience and qualifications of the candidate. The above is a reasonable and a good faith estimate for the role.
Medical, vision, and dental benefits, 401k retirement plan, variable pay/incentives, paid time off, and paid holidays are available for full-time employees.
This position is available for independent contractors
No applications will be considered if received more than 120 days after the date of this post

Skills Required

  • 7+ years software engineering experience with depth in AI/ML or data-intensive systems
  • 2+ years Python programming
  • 2+ years designing and delivering production-scale Generative AI systems in an enterprise
  • 2+ years experience with LLMs, prompt engineering, and RAG architecture
  • 2+ years experience with vector databases and semantic search
  • 2+ years experience with API-driven, cloud-native architectures
  • 2+ years experience with distributed systems and performance optimization
  • Strong understanding of non-functional requirements: security, scalability, resiliency, observability, cost management
  • Demonstrated Principal-level impact influencing multiple teams or platforms
  • Experience operating in highly regulated environments (financial services preferred)
  • Hands-on experience with agentic AI frameworks and multi-model orchestration
  • Prior Forward Deployed Engineer or embedded engineering model experience
  • Ability to communicate complex technical concepts to senior executives and non-technical stakeholders
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The Company
HQ: London
5,017 Employees
Year Founded: 2007

What We Do

Photon.com has emerged as one of the world’s largest and fastest-growing Digital Agencies. We work with 40% of the Fortune 100 on their Digital initiatives and are known for our ability to integrate Strategy Consulting, Creative Design, and Technology at scale. Please visit www.photon.com to learn more about us, how we work, and our customer case studies. Digital Transformation Starts Here.

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