Principal AI Architect - Director

Citigroup Inc.; New York (NY); On-site; USD 170,000 - 300,000; Full time

Job summary

Citigroup Inc. in New York seeks a Principal AI Architect to define and govern the enterprise vision for autonomous agentic systems and multi-agent frameworks across Citi's technology footprint.

You will chair the Agent Architecture Review Board, author enterprise blueprints, and translate field needs into core platform features on Arc Platform, R2D2 Gateway, Agentflow and Helix. This role requires deep leadership, mastery of modern AI architectures, and the ability to balance risk, innovation,

Qualifications

• 10+ years of software architecture and engineering experience in enterprise environments.
• 3+ years of hands‑on experience architecting and deploying production LLM‑powered applications, multi‑agent systems, and autonomous agentic workflows.
• Mastery of Python and/or Golang, OpenShift/Kubernetes, distributed microservices, OAuth2/JWT token delegation, API gateway management, and enterprise telemetry.
• Deep understanding of financial services compliance, Model Risk Management standards, and deterministic validation methodologies for non‑deterministic AI outputs.

Responsibilities

• Serves as the chief technical authority for autonomous systems, multi‑agent frameworks, and hierarchical sub‑agent architectures.
• Authors and maintains enterprise reference architectures and blueprints for single‑agent, hierarchical sub‑agent, and HITL workflows.
• Chairs the Agent Architecture Review Board (AARB) to conduct mandatory reviews for all high‑risk AI agents.

Skills

Executive communication

Leadership

Architectural governance

Education

Bachelor’s/University degree or equivalent experience

Master’s degree in Computer Science, AI/ML

Tools

Python

Golang

OpenShift/Kubernetes

OAuth2/JWT

API gateway management

OpenTelemetry

Splunk

Job description

The Principal AI Architect is a senior executive technical authority position responsible for defining, establishing, and governing the enterprise architectural vision for autonomous agentic systems and multi-agent frameworks across Citigroup. The overall objective of this role is to serve as Citi's chief technical authority for autonomous systems and multi-agent frameworks, co‑owning enterprise blueprints, review gates, playbooks, and the Product/Platform Loop bridging field implementations with core internal platforms (Arc Platform, R2D2 Gateway, Agentflow, and Helix).

Responsibilities

• Serves as the chief technical authority for autonomous systems, multi‑agent frameworks, and hierarchical sub‑agent architectures across Citi's global technology footprint.
• Authors and maintains enterprise reference architectures and blueprints for single‑agent, hierarchical sub‑agent, and Human‑in‑the‑Loop (HITL) workflows, ensuring strict adherence across all delivery pods.
• Acts as the primary technical bridge in the Product/Platform Feedback Loop with the Arc Core, R2D2 Gateway, and Agentflow platform teams—translating field friction from LOB deployments into core platform features.
• Chairs the Agent Architecture Review Board (AARB) to conduct mandatory technical, architectural, and security reviews for all high‑risk AI agents prior to UAT and Production promotion.
• Defines enterprise standards for Model Context Protocol (MCP) server integration, zero‑trust boundary enforcement via Tiramisu proxies, and COIN M2M identity token delegation.
• Establishes horizontal governance, code quality, testability, and automated evaluation standards across all Forward Deployed Engineering (FDE) pods.
• Advises senior business and technology leadership on emerging AI paradigms, non‑deterministic system validation, and foundation model capabilities.
• Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency, as well as effectively supervise the activity of others and create accountability with those who fail to maintain these standards.

Qualifications

• 10+ years of progressive software architecture and engineering experience in enterprise, distributed systems, or financial technology environments.
• 3+ years of hands‑on experience architecting and deploying production LLM‑powered applications, multi‑agent systems, and autonomous agentic workflows (e.g., LangGraph, AutoGen, CrewAI, Semantic Kernel, Agent Development Kit / ADK).
• Mastery of Python and/or Golang, OpenShift/Kubernetes, distributed microservices, OAuth2/JWT token delegation, API gateway management, and enterprise telemetry (OpenTelemetry, Splunk).
• Deep understanding of financial services compliance, Model Risk Management (MRM) standards, and deterministic validation methodologies for non‑deterministic AI outputs.
• Demonstrated leadership and track record of chairing technical governance bodies and influencing enterprise‑level architectural direction.
• Consistently demonstrates clear, concise, and persuasive executive‑level written and verbal communication.

Education

• Bachelor’s/University degree or equivalent experience
• Master’s degree in Computer Science, AI/ML, or related technical field strongly preferred.

Job Family Group

Technology

Job Family

Architecture

Time Type

Full time

Primary Location

New York New York United States

Primary Location Full Time Salary Range

$170,000.00 - $300,000.00

In addition to salary, Citi’s offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including: medical, dental & vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays. For additional information regarding Citi employee benefits, please visit citibenefits.com. Available offerings may vary by jurisdiction, job level, and date of hire.

Most Relevant Skills

Please see the requirements listed above.

Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

Anticipated Posting Close Date

Nov 30, 2026

Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi. Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision‑making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details. Illinois residents – AI Notice and Right

Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi’s EEO Policy Statement and the Know Your Rights poster.