Hybrid Lead Full Stack Application Development Engineer

at Citi

• Job title: Lead Full Stack Application Development Engineer
• Job type: Full Time
• Experience level: Senior
• Salary: $125,760 - $188,640 per year
• Degree requirement: Bachelor's Degree
• Tech skills: Angular, AWS, Azure, Bootstrap, Cloud, Docker, Google Cloud Platform, JavaScript, Jest, Kubernetes, Python, SDLC, TypeScript
• Location requirements: Hybrid, Irving, United States

About the role

• Lead Full Stack Application Development Engineer developing advanced AI systems with a focus on Large Language Models at Citi. Collaborating with teams to innovate and ensure platform performance in a hybrid work environment.

Responsibilities

• Develop foundational components and advance technological capabilities within AI and LLM domains.
• Build robust, scalable, and user-friendly solutions, embracing agile methodologies with rapid iteration and adaptability.
• Partner closely with internal development teams and subject matter experts across the business to deliver integrated solutions.
• Ensure all software platforms adhere to Citi's security standards and Software Development Life Cycle (SDLC) processes.
• Manage and innovate the platform at scale, ensuring continuous evolution and high performance.

Requirements

• 6+ years of relevant experience in Application Development, including designing and developing web portals and intranet/internet applications.
• Strong proficiency in Programming Languages , with a preference for Python (asynchronous programming) , FastAPI , and Javascript/Typescript .
• Hands-on experience implementing web applications using Angular , JavaScript , Bootstrap , HTML5 , JSON , CSS , and AJAX .
• Solid understanding of the following AI/ML : Language Models such as GPT, Gemini, Claude, Transformers , including concepts like Attention Mechanisms and Encoder-Decoders Architectures .
• Agentic Frameworks , to build intelligent agents that operate autonomously, coordinate tasks and integrate with tools and platforms.
• RAG (Retrieval-Augmented Generation) , to optimize the output of a large language module so it references an authoritative knowledge base outside of its training data sources before generating a response.
• Proven experience in the following SDLC (Software Development Life Cycle) Activities : Systems Analysis: Gathering requirements, defining system specifications, and creating use cases for complex enterprise applications.
• Design : Architecting scalable solutions , creating database schemas , and designing API contracts .
• Coding : Writing clean, efficient, and well-documented code in Python , JavaScript , etc.
• Unit Testing: Developing and executing unit tests using frameworks like Pytest or Jest to ensure code quality.
• Other SDLC Activities : Integration Testing , Performance Testing , and Deployment Planning .
• Experience with Code Reviews , Continuous Integration , and ensuring code quality through Test Case Reviews .
• Experience with CI/CD pipelines and Source Code Management (SCM) tools like GIT, along with issue tracking tools like JIRA.
• Demonstrated experience building and running large-scale platforms.
• Solid understanding and experience with RESTful API design principles , including Designing Stateless APIs , using appropriate HTTP methods ( GET , POST , PUT , DELETE ), and Implementing Versioning and Authentication (e.g., OAuth2 , JWT ).
• Experience with Container technologies (e.g., Docker ) and Kubernetes for orchestration, deployment, and scaling of containerized applications.
• Proficient in Agile/Scrum methodologies , including participation in Daily Stand-ups , Sprint Planning , Backlog Refinement , and Sprint Reviews .
• Development experience with at least one major Public Cloud provider (e.g., AWS , Azure , GCP ).
• Ability to adjust priorities quickly and effectively as circumstances dictate.
• Demonstrated leadership and project management skills.
• Consistently demonstrates clear, concise, written, and verbal communication skills.

Benefits

• medical, dental & vision coverage
• 401(k)
• life, accident, and disability insurance
• wellness programs
• paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays