Senior Full Stack Java Engineer (Agentic AI)

Citi Group; Irving (TX); On-site; USD 140,000 - 190,000; Full time

Job summary

Citi Group is seeking a Senior Full Stack Lead Developer within Banking Technology to drive engineering excellence through hands-on contributions and high technical standards. You will influence cross-functional teams, deliver robust middleware platforms, and apply modern engineering practices to complex financial systems.

You will mentor engineers, translate business requirements into actionable designs, and champion innovative solutions including AI-enabled approaches to accelerate delivery

Qualifications

• Minimum of 6+ years of backend Java development with React frontend.
• Experience owning design and delivery of large-scale software as a senior IC.

Responsibilities

• Contribute to long-term technical vision and architectural roadmap.
• Mentor and guide senior and junior engineers.
• Translate business requirements into technical designs.
• Drive adoption of advanced architectural patterns and emerging tech.
• Leverage AI tools to boost development efficiency.
• Collaborate cross-functionally with product management and operations to deliver scalable solutions.
• Ensure on-time delivery with high quality and security considerations.

Skills

Java Backend

React Frontend

Software Architecture

Mentoring

Technical Leadership

Tools

Spring Boot

Kafka

GraphQL

NoSQL Databases

Job description

Role Overview

The Senior Full Stack Lead Developer is a highly experienced individual contributor within Banking technology division. This role is responsible for driving engineering excellence through hands‑on technical contributions, setting high technical standards by example, and delivering robust, scalable, and secure middleware platforms. The Principal Engineer will apply innovative modern software engineering practices to solve complex business challenges, directly contributing to Citi's global banking objectives. This position requires exceptional technical mastery, strategic problem‑solving abilities, and the capacity to technically guide and influence project outcomes and peers across the organization.

Key Responsibilities

• Technical Vision & Architectural Contribution: Actively contribute to and uphold the long‑term technical vision and architectural roadmap for core platforms within the Banking Technology middleware ecosystem, encompassing Java, Spring Boot, Kafka, Microservices, GraphQL, and NoSQL databases. Implement and advocate for organizational engineering standards, best practices, and architectural patterns to ensure scalability, reliability, security, and maintainability across all engineering initiatives.
• Technical Mentorship & Skill Development: Lead by example in coding, design, and problem‑solving. Mentor and provide technical guidance to senior and junior software engineers, fostering a culture of innovation, continuous learning, and technical excellence. Share knowledge, best practices, and innovative solutions with the team.
• Technical Advisory & Problem Solving: Act as a primary technical advisor to senior business leaders and product owners, translating complex business requirements into clear, actionable technical designs and innovative solutions. Effectively articulate technical insights, architectural decisions, and development progress to diverse audiences.
• Innovator & Early Adopter: You are a forward‑thinking technologist who actively drives the exploration, evaluation, and hands‑on application of emerging technologies, advanced architectural patterns, and innovative solutions (e.g., Apache Flink, Artificial Intelligence) to enhance product offerings and improve engineering productivity. You are a relentless champion of continuous improvement in software architecture, development processes, and tooling.
• You effectively leverage AI tools to enhance development efficiency, accelerate problem‑solving, and drive innovation in your daily work.
• Cross-Functional Technical Collaboration: Collaborate extensively with other engineers and technical leads across engineering, product management, and operations to ensure alignment of technical designs, seamless integration of solutions, and achievement of broader organizational goals. Influence technical decisions through deep expertise and well‑reasoned arguments.
• Accountability for Technical Delivery & Quality: Take ultimate accountability for the successful, on‑time delivery of complex, high‑quality, and user‑centric software components. Uphold rigorous engineering standards through thorough design, code, and security reviews, and contribute to comprehensive technical documentation, ensuring a culture of engineering excellence.

Who You Are

• Expert System Designer: You are an engineer with a proven ability to design and build critical middleware ecosystems. You possess deep expertise in creating and applying sound architectural patterns to ensure the scalability, reliability, security, and maintainability of enterprise platforms.
• Passionate Hands‑On Developer: You are an exceptional developer who thrives on solving complex problems with clean, efficient code. You are passionate about your craft and enjoy mentoring other engineers, leading by example with a commitment to technical excellence and continuous learning.
• Effective Technical Partner: You are an adept partner to the business, capable of engaging with product owners to translate complex requirements into clear, actionable, and innovative technical solutions. You excel at articulating technical insights and architectural decisions to diverse audiences.

Required Qualifications

• Experience: Minimum of 6+ years of progressive experience in backend Java development with React on the front end, with a proven track record of owning the design and delivery of complex, large‑scale software projects as a senior individual contributor.
• Technical Mastery: Deep, hands‑on expertise and architectural understanding of enterprise‑level middleware technologies including Java, Spring Boot, Kafka, Microservices architecture, GraphQL, and NoSQL databases. Demonstrated experie