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Sr. AWS Developer, and Lambda

2 weeks ago

Mississauga, Ontario, Canada Bank of Montreal Full time $75,900 - $141,900

Application Deadline:

04/02/2026

Address:

VIRTUAL59 - REMOTE/TELETRAVAIL - ON - BMO

Job Family Group:

Technology

We are seeking a highly skilled Senior AWS Developer to design, develop, and maintain serverless applications using AWS Lambda and . This role focuses on building scalable, secure, and efficient cloud-native solutions. The ideal candidate should have strong expertise in AWS services and development, with a passion for delivering high-quality code and solutions.

If you're ready to lead to solve real-world security challenges, and make your mark in a collaborative, forward-thinking team, this is your next move

This role is 100% remote

KEY Responsibilities:

  • Design and implement AWS Lambda functions using for various business use cases.

  • Develop and maintain serverless architectures leveraging AWS services such as API Gateway, DynamoDB, S3, CloudWatch, and IAM.

  • Optimize Lambda performance, cost, and scalability.

  • Collaborate with architects and product teams to define technical requirements and solutions.

  • Implement best practices for security, monitoring, and error handling in AWS environments.

  • Write clean, maintainable, and well-documented code.

  • Participate in code reviews and mentor junior developers.

CORE Technical  Skills:

  • 5+ years of professional software development experience.

  • Min of 3+ years of hands-on experience specifically in AWS Lambda and

  • Strong understanding of AWS core services (API Gateway, DynamoDB, S3, CloudWatch, IAM).

  • Experience with serverless frameworks (e.g., Serverless Framework, AWS SAM).

  • Proficiency in JavaScript/TypeScript.

  • Knowledge of CI/CD pipelines for AWS deployments.

  • Strong problem-solving and debugging skills.

Highly desired Skills:

  • Familiarity with event-driven architectures and microservices.

  • Experience with AWS security best practices.

  • Knowledge of unit testing frameworks (e.g., Jest, Mocha).

  • Exposure to Terraform or CloudFormation for infrastructure as code.

Develops scalable and accessible business cloud applications. Focuses on the technical design, development, enhancement, testing, debugging and maintenance of Cloud applications and supports the design of business processes in the cloud. Applies expertise and in-depth understanding of managed services environments, next-generation databases and, developer tools. Migrates existing applications to the cloud, and modifies existing applications for the cloud, or builds new cloud-native applications.​

  • Creates and maintains various applications using different types of programming languages.
  • Integrates data sources and identifies the kinds of problems that can arise due to incompatibility or security concerns.​
  • Designs, configures and implements the cloud-native software that solves actual business problems using cloud technology​.
  • Maintains applications and infrastructure for cloud-based platforms​.
  • Supports the creation of strategies to enhance the performance of existing cloud technologies.
  • Develops workflows and processes following best practices and the cloud architecture​.
  • Understands specific cloud resources, services, architectures and service-level agreements in order to create scalable and extensive software products.​
  • Creates instructions for cloud computing operations and documentation.
  • Establishes a development environment and continuous integration pipeline. Utilizes modern application patterns and code efficiency.​
  • Translates user needs into technical specifications by understanding, conceptualizing, and facilitating technical requirements from users.​
  • Focus is primarily on business/group within BMO; may have broader, enterprise-wide focus.
  • Provides specialized consulting, analytical and technical support.
  • Exercises judgment to identify, diagnose, and solve problems within given rules.
  • Works independently and regularly handles non-routine situations.
  • Broader work or accountabilities may be assigned as needed.

Qualifications:

Foundational level of proficiency:

  • Agile methodology.
  • Creative thinking.
  • Learning Agility.
  • Emotional agility.

Intermediate level of proficiency:

  • It automation.
  • Databases.
  • Configuration management.
  • Elastic computing.
  • SaaS.
  • PaaS.
  • Cloud security.
  • Customer Centricity.
  • Verbal & written communication skills.
  • Collaboration & team skills.
  • Analytical and problem solving skills.
  • Data driven decision making.

Advanced level of proficiency:

  • Cloud computing.
  • Cloud solutions.
  • Software development.
  • Scripting languages.
  • Troubleshooting.
  • Software development lifecycle.
  • Cloud storage.
  • Typically between 5 - 7 years of relevant experience and post-secondary degree in related field of study or an equivalent combination of education and experience.
  • Deep knowledge and technical proficiency gained through extensive education and business experience.

Salary:

$75, $141,

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.

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.