Lead Python AI Engineer, Agentic Systems

Citibank (Switzerland) AG; Irving (TX); Hybrid; Confidential; Full time

Benefits offered by this job

Hybrid work model

Competitive compensation

Benefits package

Wellbeing programs

Learning & development

Job summary

Citi is seeking a Senior Python-AI Engineer to design and deploy production-grade Agentic AI systems for Funds Transfer Pricing and Financial Hedging. You will own complex AI agent architectures from concept to global deployment, driving automation and decision intelligence across critical workflows.

You will lead the integration of LLMs, retrieval pipelines, and planning frameworks, mentor engineers, and influence technical strategy in a high-visibility, global context.

Qualifications

• 7+ years of professional software development and system design experience.
• Proficiency in Python and SQL with production-grade Agentic AI experience (LangChain, LlamaIndex or equivalent).
• Experience building multi-agent systems with planning, reasoning, memory, and API integrations.
• Applied knowledge of LLMs within agentic architectures and APIs for AI services.
• Advanced Prompt and Context Engineering skills for robust model performance.
• Experience with Vector Databases as part of AI retrieval/memory architectures.

Responsibilities

• Design and build multi-agent systems with autonomous agents across financial platforms.
• Develop and optimize Retrieval-Augmented Generation (RAG) architectures and pipelines.
• Implement planning and reasoning using knowledge graphs and rule-based systems.
• Construct resilient agent architectures with error recovery and feedback-driven improvement.
• Integrate LLMs, predictive models, and reasoning frameworks into agent systems for complex decisions.
• Build APIs and microservices to connect AI capabilities with enterprise apps.

Skills

Python

SQL

LangChain

LlamaIndex

Multi-agent systems

LLMs

Vector databases

Education

Master's degree in Computer Science

Tools

Google ADK

LangGraph

AutoGen

CrewAI

Job description

Senior Python-AI Engineer, Agentic Systems Citi is building some of the most consequential AI solutions in global financial services, and this Senior AI Engineer role sits at the heart of that mission — designing and developing production-grade Agentic AI systems for Funds Transfer Pricing and Financial Hedging platforms. You will take ownership of complex AI agent architectures from concept through to global-scale deployment, driving automation and decision intelligence across critical financial workflows. This is an opportunity to shape the next generation of AI-powered financial technology at one of the world's leading institutions.

Responsibilities

• Design and build multi-agent systems where autonomous agents collaborate to solve complex, real-world business problems across financial platforms.
• Develop and optimize Retrieval-Augmented Generation (RAG) architectures, including embedding strategies, vector databases, and retrieval pipelines, to improve the accuracy and reliability of AI-generated outputs.
• Implement planning and reasoning capabilities using knowledge graphs, rule-based reasoning, and search algorithms that enable agents to execute multi-step workflows reliably.
• Construct resilient agent architectures with built-in mechanisms for error recovery, self-correction, and feedback-driven improvement to maintain performance in production environments.
• Integrate large language models (LLMs), predictive models, and reasoning frameworks into agent systems that support complex financial decision-making workflows.
• Build APIs, tools, and microservices that connect AI capabilities with enterprise applications, enabling seamless integration at scale.
• Optimize AI systems for low latency and high throughput, applying techniques such as response streaming, caching, and token usage optimization to ensure performance and cost-effectiveness.
• Apply current AI research to real business challenges and collaborate with engineers across the team to elevate AI development practices and foster engineering excellence.
• Act as a subject matter expert, driving the technical strategy for AI within the Funds Transfer Pricing and Financial Hedging domains by staying abreast of state-of-the-art research and identifying opportunities for innovation.
• Mentor junior engineers on AI best practices and provide technical leadership across multiple project teams, fostering a culture of engineering excellence.

Required Qualifications & Skills

• 7 or more years of professional experience in software development and system design, with a demonstrated history of delivering large-scale production systems.
• Proficiency in Python and SQL, with hands-on experience building production-quality Agentic AI solutions using frameworks such as LangChain, LlamaIndex, or equivalent tools.
• Practical experience developing multi-agent systems using frameworks such as Google ADK, LangGraph, AutoGen, or CrewAI, including implementation of planning, reasoning, and memory systems.
• Applied knowledge of large language models (LLMs) within agentic architectures, including designing and integrating APIs for AI services.
• Advanced skills in Prompt and Context Engineering, with the ability to structure, compress, and optimize information for consistent and high-quality model performance.
• Experience working with Vector Databases as part of AI retrieval and memory architectures.

Beneficial Skills & Qualifications

• Experience working within the financial services industry, particularly in areas such as Funds Transfer, Pricing, Hedging, or Treasury technology.
• Proficiency in Java as a secondary programming language alongside Python.
• A Master's degree in Computer Science or a closely related field.

What We Offer

At Citi, you will work alongside talented engineers on technology that operates at global scale and drives real impact across financial markets.

This is a high-visibility role within a firm-wide AI modernization initiative, offering the technical scope and career momentum that comes with building systems that matter.

A hybrid working model with 3 days in the office and 2 days working remotely, giving you flexibility alongside meaningful in-person collaboration.

The opportunity to work on a firm-wide AI initiative with broad organizational impact, giving your work visibility at the highest levels of the business.

Access to continuous learning and professional development, with exposure to cutting-edge AI research and the tools to apply it in production.

Collaboration with a high-caliber engineering team where knowledge sharing, mentorship, and technical growth are part of how the team operates every day.

Competitive compensation and a comprehensive benefits package that supports your financial wellbeing and long-term security.

Wellbeing and family support programs designed to help you maintain balance across all areas of life.

The scale and reach of a global institution, with the ability to see the direct effect of your engineering work across international markets and platforms.

Build the AI systems that power global financial decision-making —

Job Family Group: Technology

Job Family: Applications Development

Time Type: Full time

Primary Location: Irving Texas United States

Primary Location Full Time Salary Range: $125,760.00 - $188,640.00

Anticipated Posting Close Date: Sep 01, 2026

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