Senior Application Developer

Key Responsibilities

• Own the design, development, and ongoing health of complex applications or services, taking accountability for technical quality, resiliency, and performance.
• Lead end‑to‑end technical design, translating business requirements into scalable, secure, and maintainable solutions.
• Design and build applications using Java and Spring Boot within a microservices and cloud‑native architecture.
• Lead and support application integrations using APIs, MQ, Kafka, and SFTP (RESTful services, JSON, XML).
• Develop and optimize data solutions using Oracle SQL.
• Use AI‑assisted tools to analyze large or complex codebases, identify technical debt, and assess cross‑system impacts during design, modernization, and change initiatives.
• Apply AI to accelerate solution design exploration, architecture evaluation, prototyping, and test strategy improvement.
• Leverage AI during complex production issue analysis, incident triage, and root‑cause investigations to reduce mean time to resolution and improve system reliability.
• Troubleshoot and resolve complex system issues, leading root‑cause analysis and implementing long‑term fixes.
• Set and enforce engineering standards for code quality, testing (SIT/UAT), security, performance, and SDLC best practices.
• Provide technical leadership and mentorship to junior and intermediate engineers across coding standards, solution design, testing practices, and modern engineering approaches.
• Mentor and guide engineers on the effective, responsible, and judicious use of AI throughout the software development lifecycle.
• Guide teams through technical ambiguity, helping define direction, trade‑offs, and implementation approaches.
• Collaborate with business partners, architects, and product teams to ensure solutions are aligned with business priorities.
• Contribute to continuous improvement of engineering processes, tools, and delivery practices.

Leadership & Ownership Expectations

Demonstrated ownership of applications or services, with the ability to clearly explain what was built, your role, and the business and technical impact delivered.

Experience setting clear expectations for development quality, delivery timelines, and engineering best practices.

Proven ability to influence technical decisions and raise the bar for team performance, system quality, and operational excellence.

Experience working in enterprise environments; banking or financial services experience preferred.

Ability to set the standard for responsible AI usage, including adherence to data privacy, security, and regulatory compliance expectations.

Required AI Capabilities

• Hands‑on experience using AI‑assisted coding or developer productivity tools, such as Microsoft Copilot, GitHub Copilot, or similar tools, in day‑to‑day development workflows.
• Strong judgment and accountability in reviewing, validating, and refining AI‑generated code, designs, and technical recommendations to ensure correctness, security, maintainability, and alignment with enterprise standards.
• Solid understanding of responsible, ethical, and secure AI usage in an enterprise environment, including data privacy, intellectual property protection, regulatory considerations, and secure software development practices.

Qualifications & Experience

• 6+ years of professional software development experience, with a related post‑secondary degree or equivalent experience.
• Hands‑on experience delivering production systems in large, complex enterprise environments.
• Strong communication skills, with the ability to articulate complex technical concepts to both technical and non‑technical stakeholders.

Technical Skills

• Languages & Frameworks: Java, Spring Boot
• Architecture: Microservices, distributed systems
• Integration: APIs, MQ, Kafka, SFTP; REST, JSON, XML
• Databases: Oracle SQL
• Cloud: AWS (EC2, EKS, Lambda, S3, RDS, Redshift, Bedrock)
• SDLC & Testing: Full SDLC ownership, SIT/UAT
• AI & Cloud Experience: Recent AI / GenAI experience (within the past 3 months) using AI to solve real technical or business problems, including: AI‑assisted code analysis, refactoring, and technical debt assessment; AI‑enabled design exploration, prototyping, and test strategy improvement; AI‑supported production issue investigation and root‑cause analysis; Experience integrating AI/ML/GenAI tools or consuming AI services and APIs (e.g., Microsoft Copilot, ChatGPT, Claude). AWS experience within the past 12 months, including deploying, hosting, and supporting applications in AWS‑based environments.

Work Model Hybrid – 2–3 days per week in office

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:

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

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.

Who we are

We’re proud to be fueling growth and expanding possibilities for individuals, families and businesses. More than 12 million customers count on us for personal and commercial banking, wealth management and investment services. As the 8th largest bank in North America by assets, we provide personal and commercial banking, wealth management and investment services to more than 12 million customers. In Canada, the United States and across the globe, we’ll continue to build, invest and transform to drive performance that serves the good that grows.