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! ------------------------------------------------------ **Job Family Group:** Technology ------------------------------------------------------ **Job Family:** Applications Development ------------------------------------------------------ **Time Type:** Full time ------------------------------------------------------ _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 (https://www.citigroup.com/citi/accessibility/application-accessibility.htm)_ _._ _View Citi’s_ _EEO Policy Statement (https://www.citigroup.com/global/eeo-aa-policy)_ _and the_ _Know Your Rights (https://www.eeoc.gov/sites/default/files/2023-06/22-088\_EEOC\_KnowYourRights6.12ScreenRdr.pdf)_ _poster._ Citi is an equal opportunity and affirmative action employer. Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.