We are Citi’s Markets team—a group of passionate and talented engineers, product managers, and tech specialists transforming ambiguous ideas into cutting-edge, scalable products. We specialize in Generative AI, backend engineering, and cloud-native architectures to develop mission-critical systems at a global scale. Our team is at the forefront of innovative AI-powered applications, large-scale infrastructure, and modern backend development using Java, Python, Golang, Spring Boot, Flask, and Kubernetes. We focus on integrating RAG-powered LLMs, implementing advanced vector search (FAISS, Milvus, Pinecone), and building scalable and high-performance AI-driven solutions.

You Might Be a Good Fit If You:

• Have deep hands-on software engineering expertise in Java or  Python
• Thrive in a results-driven, flexible environment
• Have experience with backend development for AI-powered systems
• Enjoy building high-performance APIs using Spring Boot, Flask
• Want to develop AI-powered applications leveraging RAG frameworks, Vector and Similarity search
• Have experience with Maven or Gradle for Java project dependency management
• Understand security best practices (Spring Security, SSO, authentication protocols)
• Are comfortable working with Kubernetes, Docker, and cloud-native architectures

What You’ll Do as Part of the Tech Strategy Team:

• Develop AI-driven applications using Java, Python, and modern backend frameworks
• Integrate LLMs into enterprise-scale systems using internal frameworks and libraries
• Design and implement vector search solutions using FAISS, Milvus, and Pinecone
• Build scalable APIs and backend services using Spring Boot, Flask, and FastAPI
• Optimize data storage and retrieval with PostgreSQL/MongoDB and distributed databases
• Deploy and manage cloud-native applications using Kubernetes and Docker
• Implement security best practices with Spring Security and SSO
• Leverage Maven or Gradle for efficient Java project build and dependency management
• Mentor and support fellow engineers, fostering a culture of learning and collaboration

Experience That Will Help You Succeed in This Role:

• Proficiency in Java or  Python for backend development
• Strong knowledge of Spring Boot, Flask, FastAPI, and API design
• Experience with  vector search frameworks (FAISS, Milvus, Pinecone)
• Expertise in Kubernetes and Docker for scalable deployment
• Understanding of authentication & security frameworks (Spring Security, SSO)
• Hands-on experience with PostgreSQL and distributed storage
• Experience with Maven or Gradle for Java project management
• Familiarity with Golang (a plus but not mandatory)
• Experience working in cloud-native, high-performance environments
• Contributions to open-source AI/ML or backend engineering projects

Why Join Us?

• Work on cutting-edge GenAI-powered applications at a global scale
• Collaborate with top engineers in AI, backend, and cloud technologies
• Innovate with LangChain, vector search, and cloud-native architectures
• Build enterprise AI applications that impact millions of users

If you’re excited about backend engineering for AI-powered systems, LLM integrations, and scalable infrastructure, we’d love to hear from you!

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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.

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