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Senior Java Engineer – Backend & AI-Assistant Vice President

Job in Mississauga, Ontario, Canada
Listing for: Citigroup Inc.
Full Time position
Listed on 2026-09-23
Job specializations:
  • Software Development
    Backend Developer, Java Developer
Salary/Wage Range or Industry Benchmark: 132000 - 197000 CAD Yearly CAD 132000.00 197000.00 YEAR
Job Description & How to Apply Below

Citi is looking for a Senior Java Engineer to design and deliver high-performance backend systems at the intersection of enterprise software development and applied AI tooling. Based within Citi's Technology organization, this role offers the opportunity to build production-grade Java applications using Spring Boot and MongoDB while actively integrating modern AI-assisted development practices into everyday engineering workflows. You will operate with meaningful autonomy, owning application modules end-to-end and contributing to the standards that shape how the team builds and ships software.

Responsibilities
  • Design, develop, and deploy robust backend applications using Java and Spring Boot, with MongoDB as the primary data store, ensuring performance, reliability, and maintainability at scale.
  • Build and maintain RESTful APIs and microservices that meet defined business requirements, translating complex functional needs into clean, efficient backend solutions.
  • Own and deliver discrete application modules from requirements through to production, maintaining accountability across the full software development lifecycle including analysis, design, construction, testing, and release.
  • Identify and surface technical and delivery risks early, proposing concrete mitigation plans to keep projects on track.
  • Integrate and champion AI-assisted development tools — including Git Hub Copilot, Devin, Claude, and Codex — to accelerate delivery and improve code quality across the team.
  • Define and uphold engineering standards and operational processes, contributing to a consistent and high-quality development practice.
  • Apply sound technical judgement when assessing the impact of decisions on system integrity, data quality, and business outcomes, escalating issues transparently where needed.
Required Qualifications & Skills
  • 5+ years of backend software engineering experience, with a focus on Java application development in commercial or enterprise environments.
  • Deep expertise across the Spring Framework ecosystem, including Spring Boot, Spring MVC, Spring Data JPA, and Spring Security.
  • Demonstrated ability to design and implement RESTful APIs and microservices architectures that are scalable, secure, and well-documented.
  • Hands‑on experience with CI/CD pipelines and tooling, including Jenkins, Git Lab CI, Git Hub Actions, Docker, Kubernetes, and Maven or Gradle.
  • Solid command of Git version control and established branching strategies such as Gitflow, applied in a team delivery context.
  • Practical experience working with AI‑assisted development tools such as Git Hub Copilot, Devin, Claude, Codex, or equivalent, as part of a professional engineering workflow.
  • Familiarity with web service standards including REST and SOAP, and data formats including XML and JSON.
Beneficial

Skills & Qualifications
  • Frontend development experience using Angular, enabling collaboration with full stack teams and contribution to end‑to‑end feature delivery is nice to have.
  • Experience managing or contributing to software delivery projects, with the ability to coordinate work streams and meet shifting deadlines effectively.
  • Exposure to project management or consulting methodologies that support structured delivery in complex engineering environments.
  • A bachelor's degree in Computer Science, Engineering, or a related field — or equivalent practical experience.
What We Offer

At Citi, you will work on technology that operates at genuine global scale, within a team that values engineering craft, clear ownership, and continuous improvement. This is a role where your backend expertise will have direct impact — not just on internal systems, but on how Citi delivers for its clients worldwide.

  • A hybrid working arrangement with 3 days in the office and 2 days…
Position Requirements
10+ Years work experience
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