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Lead Application Engineer, .NET Manager

Job Req Id:
26945091
Location(s):
Mississauga, Ontario, Canada
Job Type:
Hybrid
Posted:
Mar. 16, 2026

Discover your future at Citi

Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview

About Citi:

Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management.

As a bank with a brain and a soul, Citi creates economic value that is systemically responsible and in our clients’ best interests. As a financial institution that touches every region of the world and every sector that shapes your daily life, our Operations & Technology teams are charged with a mission that rivals any large tech company. Our technology solutions are the foundations of everything we do from keeping the bank safe, managing global resources, and providing the technical tools our workers need to be successful to designing our digital architecture and ensuring our platforms provide a first-class customer experience. We reimagine client and partner experiences to deliver excellence through secure, reliable, and efficient services.

Our commitment to diversity includes a workforce that represents the clients we serve from all walks of life, backgrounds, and origins. We foster an environment where the best people want to work. We value and demand respect for others, promote individuals based on merit, and ensure opportunities for personal development are widely available to all. Ideal candidates are innovators with well-rounded backgrounds who bring their authentic selves to work and complement our culture of delivering results with pride. If you are a problem solver who seeks passion in your work, come join us. We’ll enable growth and progress together.

The Role:

The Applications Development Group Manager is a senior leadership role responsible for directing the technology strategy and delivery for the North American Residential Mortgage trading business. This position serves as the primary technology partner to the trading desk, managing a complex book of work that includes a major front-to-back platform reengineering project. The ideal candidate will combine deep subject matter expertise in whole loan trading with proven experience in leading global technology teams and hands-on architectural experience with the .NET technology stack.

Responsibilities

  • Provide strategic and technical leadership for the technology group supporting the North American Residential Mortgage businesses.
  • Drive the architectural design and oversee the development of robust and scalable trading applications using .NET Core and C#.
  • Lead and manage multiple teams of technology professionals, including direct management of a core development team and site leadership for a larger local group.
  • Conduct all personnel management duties, including hiring, performance evaluations, resource allocation, and disciplinary actions.
  • Serve as the primary technology subject matter expert on whole loan trade processing and warehouse financing, facing off directly with the trading desk head and senior business stakeholders.
  • Manage, prioritize, and execute a complex book of work, balancing short-term urgent desk requests with long-term strategic deliverables.
  • Act as the accountable technology delivery manager for a critical, multi-system front-to-back reengineering project for the whole loan trading platform.
  • Coordinate across numerous internal technology, business, and control function groups to ensure cohesive and successful project delivery.
  • Oversee budget management, resource planning, and strategic influence to achieve established goals and monitor end results.
  • Ensure all application development and support activities adhere to firm policies, industry standards, and risk management protocols.
  • Influence and negotiate with senior leaders across functions and communicate with external parties as necessary.

Qualifications

  • Minimum of 10+ years' experience in applications development with 5+ years' experience in a management role
  • Minimum of 5 years' recent, hands-on architectural and development experience with .NET Core and C#.
  • Demonstrated experience running a front-office technology group for a trading business, with direct experience partnering with trading desk leadership.
  • Proven accountability for delivering complex, large-scale technology reengineering or transformation projects.
  • Experience managing large and/or global technology teams, with strong skills in staff management and development.
  • In-depth knowledge of modern application development concepts, software architecture, and industry best practices.
  • Strong technical decision-making capabilities and the ability to guide teams through complex problems.
  • Exceptional written and verbal communication skills, with a proven ability to influence and negotiate with senior stakeholders.
  • Strong understanding of risk assessment, compliance, and control standards within the financial services industry.
  • Deep subject matter expertise in Whole Loan Trading and Warehouse Financing for US Residential Mortgages is a major plus

Education

  • Bachelor’s degree in Computer Science, Engineering, Finance, or a related field
  • Master’s degree preferred

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Primary Location Full Time Salary Range:

$145,100.00 - $217,700.00

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

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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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Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their 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 review Accessibility at Citi.

View Citi’s EEO Policy Statement and the Know Your Rights poster.

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