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Job at Citi in Greater London
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Principal Generative AI Software Engineer - SVP

Job at Citi in Greater London

We are Citis 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 PythonThrive in a results-driven, flexible environmentHave experience with backend development for AI-powered systemsEnjoy building high-performance APIs using Spring Boot, FlaskWant to develop AI-powered applications leveraging RAG frameworks, Vector and Similarity searchHave experience with Maven or Gradle for Java project dependency managementUnderstand security best practices (Spring Security, SSO, authentication protocols)Are comfortable working with Kubernetes, Docker, and cloud-native architectures

What Youll Do as Part of the Tech Strategy Team:

Develop AI-driven applications using Java, Python, and modern backend frameworksIntegrate LLMs into enterprise-scale systems using internal frameworks and librariesDesign and implement vector search solutions using FAISS, Milvus, and PineconeBuild scalable APIs and backend services using Spring Boot, Flask, and FastAPIOptimize data storage and retrieval with PostgreSQL/MongoDB and distributed databasesDeploy and manage cloud-native applications using Kubernetes and DockerImplement security best practices with Spring Security and SSOLeverage Maven or Gradle for efficient Java project build and dependency managementMentor 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 developmentStrong knowledge of Spring Boot, Flask, FastAPI, and API designExperience with vector search frameworks (FAISS, Milvus, Pinecone)Expertise in Kubernetes and Docker for scalable deploymentUnderstanding of authentication & security frameworks (Spring Security, SSO)Hands-on experience with PostgreSQL and distributed storageExperience with Maven or Gradle for Java project managementFamiliarity with Golang (a plus but not mandatory)Experience working in cloud-native, high-performance environmentsContributions to open-source AI/ML or backend engineering projects

Why Join Us?

Work on cutting-edge GenAI-powered applications at a global scaleCollaborate with top engineers in AI, backend, and cloud technologiesInnovate with LangChain, vector search, and cloud-native architecturesBuild enterprise AI applications that impact millions of users

If youre excited about backend engineering for AI-powered systems, LLM integrations, and scalable infrastructure, wed love to hear from you!

What well provide you

This is a unique role that will put you in the position to be part of a new venture and actively drive change. Every day there will be new challenges that will help you develop new skills that can drive your career.

By joining Citi London, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:

27 days annual leave (plus bank holidays)

A discretional annual performance related bonus

Private Medical Care & Life Insurance

Employee Assistance Program

Pension Plan

Paid Parental Leave

Special discounts for employees, family, and friends

Visit our Global Benefits page to learn more.

Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive.

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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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.

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 Citis EEO Policy Statement and the Know Your Rights poster.

ID 1139642 Sectors:
in London, Greater London, England
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