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The Full Stack Engineer (AI & Agentic AI Systems) is a strategic professional who will play a pivotal role in architecting and delivering next‑generation intelligent applications that blend advanced software engineering, autonomous agents, and robust end‑to‑end engineering. In this role, you will work across the entire technology stack— REACT based front ends, designing scalable backend services (JAVA/Python), intuitive user experiences, and AI‑driven workflows that reason, plan, and act with minimal human intervention. You’ll collaborate with cross‑functional teams to transform complex business challenges into innovative, production‑ready AI systems that push the boundaries of automation, intelligence, and modern software engineering.
Job Responsibility:
Design and deliver end‑to‑end solutions spanning architecture, system design, low‑level design, and high‑quality coding across modern full‑stack environments
Build responsive, modular UI applications using React, integrating complex AI-driven workflows and real‑time interactions
Develop scalable, high‑performance backend services in Java / Python, implementing resilient APIs, event‑driven patterns, and microservices architectures
Engineer AI‑powered features leveraging Google Gemini LLM, Vertex AI, ADK, vector databases (A2A), RAG pipelines, MCP, context engineering, and advanced prompt engineering techniques
Implement secure, well‑structured REST and GraphQL APIs, ensuring reliability, versioning discipline, and clean integration patterns across platforms
Optimize system performance and scalability, applying profiling, load‑testing insights, caching strategies, and distributed system tuning
Partner with QE to build and maintain automated test suites (UI, API, integration, and performance), improving release quality and reducing regression risk
Identify, diagnose, and remediate performance bottlenecks, penetration testing vulnerabilities, and production issues with precision and root‑cause clarity
Collaborate cross‑functionally with AI scientists, architects, and product teams to translate business challenges into production‑ready, intelligent agentic systems
Turn tech stack and application design into code on multiple development platforms (e.g. iOS, Android, web/Angular, services)
Address a variety of responses to problems, questions, or situations by applying established criteria to directly influence development outcomes
Responsible for applications systems analysis and programming activities that may include assisting with feasibility studies, time and cost estimates and implementation of new or revised applications systems and programs
Accountable for development, design, construction, testing and implementation and write secure, stable, testable and maintainable code
Engage in digital applications development, risk technology, Middleware, Mainframe applications, Non Mainframe applications, Analytic Model Development and Application support activities to meet specific business needs of user areas and to test systems to ensure integrity of deliverables
Take the time to fully learn the functionality, architecture, dependencies, and runtime properties of the systems involved with your projects
Understand the business context and the associated customer use cases
Understand the team’s technologies and are able to evaluate system designs and architecture as you participate in solution discussions, development and the creation of application / systems documentation
Drive clarity into technical implementation by driving system build and performance discussions, providing technical context to team members as required and competently represent your team’s systems to others both inside and outside Digital
Build and maintain integrated project development schedules that account for internal / external dependencies, differing SDLC approaches, numerous constraints, and adequately factor in contingency for unplanned delays
Negotiate features and associated priority and help the team and their customers reach consensus
Improve team development related processes that accelerate delivery, drive innovation, lower costs, and improve quality
Ensure self and peers are actively seeking ways to objectively measure productivity
Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency
Requirements:
2-5 years in an Apps Development role
Demonstrated execution capabilities
Strong analytical and quantitative skills
Data driven and results-oriented
Experience in running high traffic, distributed, cloud based services
Experience in affecting large culture change
Experience leading infrastructure programs
Skilled at working with third party service providers
Excellent written and oral communication skills
Bachelor’s/University degree or equivalent experience
Strong expertise in SQL (Oracle, PostgreSQL)
Strong expertise in no SQL DB like MangoDB
Strong expertise in PYTHON
Strong expertise in JAVA
Strong expertise in APIs
Strong expertise in Authentication & Authorization like OAuth and others