Senior Software Engineer

Role overview

Responsibilities

• Design and deliver full-stack applications with JavaScript, TypeScript, MongoDB, Express.js, React, and Node.js.
• Build accessible React interfaces and secure, scalable Node.js and Express.js APIs, middleware, and backend-for-frontend services.
• Design performant MongoDB data models, queries, indexes, and access patterns.
• Guide complex solutions, application architecture, API contracts, authentication, caching, and event-driven integrations.
• Promote secure coding, data protection, automated security scanning, and broad testing practices.
• Own delivery from investigation and design through release, validation, and closure; lead root-cause analysis and incident learning.
• Use observability data to troubleshoot services and identify technical risks and operational gaps.
• Drive CI/CD, rollback planning, release support, and post-production validation.
• Collaborate across product, design, QA, architecture, cloud, security, SRE, and application teams.
• Mentor colleagues, conduct code and design reviews, maintain documentation and runbooks, and improve engineering quality and efficiency.

Qualifications

• 10+ years of software development experience supporting complex customer-facing platforms.
• Strong expertise in JavaScript, TypeScript, React, Node.js, Express.js, and MongoDB.
• Experience with component-based accessible React applications, reusable UI libraries, secure APIs, middleware, microservices, and backend-for-frontend services.
• Experience with MongoDB schema design, indexing, query optimization, and transaction patterns.
• Knowledge of asynchronous programming, API versioning, caching, event-driven integration, OAuth 2.0, JWT, and secure service integration.
• Experience with Jest or equivalent, modern testing practices, CI/CD, Git-based development, artifact management, and security scanning.
• Experience with observability platforms and knowledge of application performance, resiliency, accessibility, dependencies, and security.
• Ability to mentor colleagues, conduct reviews, influence technical direction, own complex delivery, and collaborate across functions.
• At least 4 years working in Agile delivery models such as Scrum or Kanban.

About Scotiabank