We are seeking a highly experienced and technically proficient AI-First Full Stack Engineer to join our team in Mississauga. This critical senior‑level individual contributor role will pioneer the integration of Artificial Intelligence into our software development lifecycle.

The ideal candidate is a passionate, hands‑on engineer who operates with a high degree of autonomy to solve complex problems, set technical direction, and mentor other engineers through influence and example, without direct managerial responsibilities.

You will translate complex business challenges in the financial domain into robust, scalable, and high‑performance applications built using an AI‑augmented approach.

Key Responsibilities

- AI-Augmented Solution Design & Implementation: Lead the end-to-end design, architecture, and hands‑on implementation of complex full‑stack applications, embedding AI-powered tools (e.g., Devin, Git Hub Copilot, Codex) to accelerate development, automate tasks, and validate architectural patterns.
- Champion Elite Engineering Craftsmanship: Drive a culture of quality through disciplined Spec‑Driven Development (SDD) for clear planning, and Test‑Driven Development (TDD) / Behavior‑Driven Development (BDD) for flawless execution. Use AI to generate intelligent test cases and automate quality gates.
- Architect for Scale and Resilience: Provide deep expertise in modern application architecture, designing for cloud readiness by applying 12‑Factor App principles and microservice patterns to build scalable and resilient systems.
- Technical Leadership & Mentorship: Act as a primary subject matter expert in modern software engineering, providing technical leadership and guidance to the team, fostering best practices in AI‑augmented development and scalable system design through code reviews, technical discussions, and collaborative problem‑solving.
- Strategic Vision & Innovation: Embrace an agile, iterative mindset that avoids “Big Up‑Front Design” (BUFD). Contribute to the strategic vision for AI in engineering by researching and evaluating new AI technologies, methodologies, and tools to maintain a competitive edge.
- Full‑Stack Problem Solving: Mastermind database interactions across Oracle and MongoDB, employing AI to analyze query performance and recommend optimizations.



Work across the entire stack to resolve high‑impact problems through deep evaluation of business and system processes.

Qualifications & Experience

- 6+ years of experience in software engineering, with at least 6 years in a senior or lead role delivering complex, enterprise‑grade applications.
- Demonstrated success building and deploying applications in financial services, banking, or capital markets domains.
- Proven experience leading technical implementations and mentoring other engineers in a senior individual contributor capacity.
- Strong communication and stakeholder management skills, with the ability to articulate complex technical concepts to diverse audiences.
- Advanced degree (or equivalent experience) in Computer Science, Engineering, or a related quantitative field is preferred.

Must‑Have Engineering & Technical Acumen

- Deep practical knowledge of designing for cloud readiness, including microservice architecture, 12‑Factor App principles, and modern design patterns.
- Proven experience championing Spec‑Driven Development (SDD), Test‑Driven Development (TDD), and Domain‑Driven Design (DDD) within an agile environment; advocate for these practices.
- Mastery of up-to-date Java (JDK 17/21) and the core Spring Framework (Spring Boot, Spring MVC, Spring Data JPA, Spring Cloud).
- Hands‑on experience with modern UI frameworks such as Angular, using Type Script/Java Script to build intuitive user interfaces.
- Strong, hands‑on experience with both relational (Oracle, SQL) and NoSQL (MongoDB) databases.
- Proficiency with modern CI/CD pipelines (e.g., Harness, Jenkins), containerization with Docker, and container orchestration platforms, specifically Open Shift and Kubernetes.
- Demonstrable, hands‑on experience using and integrating AI development tools (e.g., Devin, Git Hub Copilot, Claude, Codex) into the software development lifecycle for tasks like code generation, debugging, and documentation.
- Strong understanding of the concepts underpinning modern AI tools (LLMs, prompt engineering,



Retrieval‑Augmented Generation – RAG, MCP, A2A) and a clear vision for how to leverage them to transform engineering productivity and quality.

What Success Looks Like

- AI‑powered tools and best practices are deeply and effectively embedded into the team's daily engineering workflow.
- A measurable increase in developer velocity, code quality, and time to market for the team's projects.
- You are the go‑to expert for AI‑augmented development, actively mentoring and elevating the team's capabilities.
- The successful delivery of complex, full‑stack financial applications built with a quality‑first, AI‑augmented approach.

Why Join Us?

- Shape the Future: Redefine how software is built at a global financial institution, setting the standard for AI‑augmented engineering.
- High‑Impact Role: Enjoy significant autonomy and visibility as you lead a critical technical transformation from the front line.
- Culture of Excellence: Join a team that values and invests in technical craftsmanship, continuous innovation, and modern engineering principles.
- The Best of Both Worlds: Work at the intersection of cutting‑edge AI, modern software engineering, and the complex, high‑stakes world of finance.

Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions are conducted by individuals; our automated processing does not involve relying on automatic or autonomous decision‑making.

Equal Opportunity Employer

Citi is an equal‑opportunity employer. Qualified candidates will receive consideration without regard to 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, please refer to Accessibility at Citi. View Citi’s EEO Policy Statement and Know Your Rights poster.

#J-18808-Ljbffr

📌 AI-First Full Stack Engineer - Vice President (Mississauga)
🏢 Citigroup
📍 Mississauga