Senior Development Lead - (Cloud /Payment Systems)

BMO•Toronto, ON

1d•CA$94,600 - CA$176,000

About The Position

The Senior Software Development Lead provides hands-on technical leadership for the design, development, modernization and production stability of enterprise wire payment services. The role will mainly focus on the cloud-native applications while supporting integration with on-prem applications and upstream/downstream systems. The successful candidate will combine strong AWS serverless engineering capability with application design, coding, troubleshooting and delivery leadership. This person will guide internal and vendor developers, review designs and code, drive resilient implementation patterns, and remain actively involved from requirements and estimation through production implementation and post-release verification.

Requirements

AWS and cloud-native engineering
AWS Lambda
DynamoDB
SQS and DLQ
SNS
EventBridge
S3
API Gateway or enterprise API management
CloudWatch or comparable logging and monitoring
IAM and role-based security
AWS CDK and Infrastructure as Code
ECS/ECR knowledge for dashboard components
Resiliency, high-availability and failure-recovery patterns
Node.js and Java is a bonus
REST APIs and backend service development
Microservices and event-driven design
Message-driven processing using Kafka, MQ or equivalent
CI/CD pipelines and automated deployment
Code review, troubleshooting and performance analysis
Production incident diagnosis and root-cause analysis
NFR, performance, chaos and fallback testing
Observability, logging, tracing, alerting and telemetry
Estimation, planning and dependency management
Technical documentation and architecture review

Nice To Haves

AWS Certified Developer Associate or AWS Certified Solutions Architect Associate.
Experience with wire payments, financial messaging or other high-value payment systems is a bonus
Knowledge of ISO 20022, SWIFT, Fedwire, Lynx or payment-message processing is a bonus
Experience applying AI-assisted development, test design, log analysis or code-quality tooling.

Responsibilities

Provide hands-on technical leadership for the design, development and modernization of wire payment services.
Translate business and regulatory requirements into scalable, secure and resilient cloud-native solutions.
Design, develop and review AWS serverless applications using Node.js, Lambda, DynamoDB, SQS, SNS, EventBridge, S3, APIs and AWS CDK.
Lead solution design, code reviews, technical documentation, effort estimation and implementation planning.
Establish engineering standards for resiliency, error handling, retry, recovery, observability, security and performance.
Partner with QA on unit, integration, white-box, regression, performance, chaos and production-readiness testing.
Diagnose complex production issues, lead root-cause analysis and ensure permanent corrective actions are implemented.
Drive technology-currency, vulnerability and runtime remediation across application components and environments.
Provide technical guidance to internal and vendor developers, ensuring quality, accountability and knowledge transfer.
Promote automation and approved AI-assisted engineering practices to improve delivery speed, testing effectiveness and code quality.