Senior C# Developer at Bank of Montreal in Toronto, Ontario, Canada

Senior C# Developer Location: Toronto, ON, CAN Application Deadline: 06/25/2026 Address: 33 Dundas Street West Job Family Group: Technology We are seeking a seasoned C# developer with deep expertise in branch banking applications under Channels Technology. The ideal candidate understands that success in development comes from mastering core business processes, aligning with business requirements, and adhering to architecture patterns and technology strategy (e.g., Transformation, SmartCore, DevOps). In this hybrid role, you will design, develop, and integrate software solutions that meet functional and non-functional requirements, ensuring compliance with security, logging, error handling, and performance standards. Your work will align with architectural patterns and technology strategy, while considering upstream and downstream impacts on process, data, and risk. Key Responsibilities Assess design decisions for impact on performance, schedule, budget, and quality; recommend creative solutions for optimization. Recommend and implement solutions based on analysis of issues and business implications. Identify emerging trends and issues to inform decision-making. Lead and implement initiatives to deliver business objectives. Conduct detailed code reviews and provide constructive feedback. Design and develop scalable, supportable solutions aligned with architectural patterns. Decompose business requirements into detailed design specifications and code. Interact with business and technology stakeholders to define and deliver requirements. Perform unit testing, create documentation, and facilitate final delivery. Support production issues, including root-cause analysis and resolution. Devise new algorithms and data structures for target environments. Automate and streamline processes to improve operational efficiency. Mentor team members and contribute to communities of practice. Stay current with industry trends and best practices. Qualifications 9+ years of relevant experience or equivalent combination of education and experience. Advanced knowledge of software development practices and concepts. Strong expertise in .NET 8, C#, and Entity Framework. Experience with front-end technologies, Oracle/SQL databases, and multi-layer banking applications. Knowledge of Domain Driven Design, modularization of legacy code, and modern development patterns. Understanding of mission-critical financial applications and E2E integration. Familiarity with Agile/Scrum and Waterfall methodologies. Strong design, architecture, and solutioning skills. Excellent communication, collaboration, and problem-solving abilities. Ability to work independently and lead project teams. In-depth influence and data-driven decision-making skills Salary: $75,900.00 - $141,900.00 Pay Type: Salaried The above represents BMO Financial Group’s pay range and type. Salaries will vary based on factors such as location, skills, experience, education, and qualifications for the role, and may include a commission structure. Salaries for part-time roles will be pro-rated based on number of hours regularly worked. For commission roles, the salary listed above represents BMO Financial Group’s expected target for the first year in this position. BMO Financial Group’s total compensation package will vary based on the pay type of the position and may include performance-based incentives, discretionary bonuses, as well as other perks and rewards. BMO also offers health insurance, tuition reimbursement, accident and life insurance, and retirement savings plans. To view more details of our benefits, please visit: https://jobs.bmo.com/global/en/Total-Rewards About Us At BMO we are driven by a shared Purpose: Boldly Grow the Good in business and life. It calls on us to create lasting, positive change for our customers, our communities and our people. By working together, innovating and pushing boundaries, we transform lives and businesses, and power economic growth around the world. As a member of the BMO team you are valued, respected and heard, and you have more ways to grow and make an impact. We strive to help you make an impact from day one – for yourself and our customers. We’ll support you with the tools and resources you need to reach new milestones, as you help our customers reach theirs. From in-depth training and coaching, to manager support and network-building opportunities, we’ll help you gain valuable experience, and broaden your skillset. To find out more visit us at https://jobs.bmo.com/ca/en. BMO is committed to an inclusive, equitable and accessible workplace. By learning from each other’s differences, we gain strength through our people and our perspectives. Accommodations are available on request for candidates taking part in all aspects of the selection process. To request accommodation, please contact your recruiter. Note to Recruiters: BMO does not accept unsolicited resumes from any source other than directly from a candidate. Any unsolicited resumes sent to BMO, directly or indirectly, will be considered BMO property. BMO will not pay a fee for any placement resulting from the receipt of an unsolicited resume. A recruiting agency must first have a valid, written and fully executed agency agreement contract for service to submit resumes.