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Job Overview
We areseekinga highly experienced and technically proficient AI-First Full Stack Engineer to join our team in Mississauga. This is a critical, senior-level individual contributor role for a deep technical expert who will pioneer the integration of Artificial Intelligence into our software development lifecycle.
The ideal candidate is a passionate, hands-on engineer whooperateswith 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 be instrumental in translating 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. StrategicallyembedAI-powered tools (e.g., Devin, GitHub Copilot, Codex) to accelerate development, automate complex tasks, andvalidatearchitectural patterns.
Champion Elite Engineering Craftsmanship:Drive a culture of quality through the disciplined application ofSpec-Driven Development (SDD)for clear planning, andTest-Driven (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 deepexpertisein modern application architecture,designing forcloud readinessby applying12-Factor App principles and microservice patternsto build scalable and resilient systems.
Technical Leadership & Mentorship:Act as a primary subject matter expert in modern software engineering. Provide technical leadership and guidance to the team, fostering bestpractices in AI-augmented development and scalable system design through code reviews, technical discussions, and collaborative problem-solving.
Strategic Vision & Innovation:Embrace anagile, iterative mindsetthat 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 tomaintaina 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 in-depth evaluation of business and system processes.
Qualifications & Experience
6+ yearsof experience in software engineering, with at least6 yearsin a senior or lead role delivering complex, enterprise-grade applications.
Demonstrated success building and deploying applications infinancial services, banking, or capital markets domains.
Proven experience leading technical implementations and mentoring other engineers in a senior individual contributor capacity.
Strong communicationand 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
Engineering Principles:Deep, practical knowledge of designing forcloud readiness, includingmicroservice architecture, 12-Factor App principles, and modern design patterns.
Development Methodologies:Proven experience championingSDD(Spec Driven Development), TDD(Test Driven Development),and DDD (Domain Driven Design)within an agile environment. Youdon'tjust use these practices; youadvocate forthem.
Core Backend Stack:Mastery of modernJava (JDK 17/21)and the coreSpring Framework (Spring Boot, Spring MVC, Spring Data JPA, Spring Cloud).
Frontend Technologies:Hands-on experience with modern UI frameworks likeAngular, usingTypeScript/JavaScriptto build intuitive user interfaces.
Databases:Strong, hands-on experience with both relational (Oracle, SQL) and NoSQL (MongoDB) databases.
DevOps & CI/CD:Proficiencywith modern CI/CD pipelines (e.g., Harness, Jenkins), containerization with Docker, and container orchestration platforms, specifically OpenShift and Kubernetes.
AI-First Expertise
Practical Application:Demonstrable, hands-on experience using and integrating AI development tools(e.g., Devin, GitHub Copilot, Claude, Codex)into the software development lifecycle for tasks like code generation, debugging, and documentation.
Strategic Mindset:Strong understanding of the concepts underpinning modern AI tools (LLMs, prompt engineering, Retrieval-Augmented Generation–RAG, MCP, A2A) anda clear visionfor how toleveragethem 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, andtimetomarketyour 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 youleada 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 exciting intersection ofcutting-edgeAI, modern software engineering, and the complex, high-stakes world of finance.
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Job Family Group:
Technology------------------------------------------------------
Job Family:
Applications Development------------------------------------------------------
Time Type:
Full time------------------------------------------------------
Primary Location Full Time Salary Range:
$120,800.00 - $170,800.00------------------------------------------------------
Most Relevant Skills
Please see the requirements listed above.------------------------------------------------------
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------
Automated Processing and AI
We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) 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, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.
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This job opening is for an existing job vacancy.
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