Job Specifications
At Loblaw Digital, we know that our customers expect the best from us. Whether that means building the best, most innovative online shopping experience, or designing an app that will impact the lives of people across the country, we’re up for the challenge. From our office in Downtown Toronto, we’ve created leading eCommerce experiences in the online grocery shopping, beauty, pharmacy, and apparel spaces, and we’re only just getting started.
Why is this role important?
At Loblaw Digital, we know that our customers expect the best from us. Whether that means building the best, most innovative online shopping experiences, or designing an app that will impact the lives of people across the country, we’re up for the challenge. Loblaw Digital is the team responsible for building and operating the online businesses of Canada’s largest and most successful retailer. Based in downtown Toronto, we are an entrepreneurial, fast-paced, and collaborative team working towards transforming the way Canadians shop by creating leading eCommerce experiences in the online grocery shopping, beauty, pharmacy, loyalty, and apparel spaces, and we’re only just getting started! To achieve these goals, we are looking for talented and passionate individuals who want to collaborate and solve challenging problems and make a significant and lasting impact on Canadians.
As a Senior Backend Developer on our Customer Identity team, you will help build and evolve the services that power secure, seamless identity experiences across Loblaw’s digital ecosystem. Authentication and authorization are powered by an enterprise identity platform.
Our teams own the surrounding orchestration, session management, entitlement enforcement, integrations, and operational reliability that enable identity to work consistently across web, mobile, and backend systems at massive scale. You will work closely with engineers, product partners, security, and platform teams, operating with a high degree of ownership, autonomy, and technical judgment.
What You'll Do
Own and evolve core backend services in the Customer Identity domain, including authentication flows, authorization enforcement, session management, and identity lifecycle orchestration
Design, develop, test, and maintain cloud-native microservices that are secure, scalable, and highly available
Build and operate services that integrate with an external identity provider, extending platform capabilities through APIs, middleware, configuration, and custom logic
Make pragmatic architectural decisions, clearly articulating trade-offs related to security, performance, scalability, reliability, and developer experience
Translate product and platform roadmaps into well-scoped technical designs and execution plans
Lead investigation and resolution of complex identity-related production issues, including on-call participation, incident response, and post-incident reviews
Establish and continuously improve observability (metrics, logging, tracing, alerts) to ensure operational excellence
Act as a technical steward for code quality, architecture, and long-term maintainability
Mentor and support junior developers through code reviews, design discussions, and hands-on collaboration
Collaborate closely with frontend, mobile, security, and infrastructure teams to deliver cohesive end-to-end identity experiences
Proactively identify technical debt, risks, and gaps in requirements, and work with stakeholders to address them early
Does this sound like you?
Core Backend & Platform Experience
Extensive experience with Java, Kotlin, or similar backend programming languages
Strong experience building distributed, cloud-native microservices
Hands-on experience with event-driven architectures and asynchronous systems
Professional experience with GCP, AWS, or Azure
Experience working with relational and NoSQL databases at scale
Strong understanding of caching strategies (e.g., Redis), including cache invalidation and consistency trade-offs
Proven experience operating observable systems and diagnosing performance, scalability, and reliability issues in production
Identity & Security Experience (Strong Asset for This Role)
Experience integrating with enterprise identity providers, rather than building authentication systems from scratch
Strong understanding of authentication and authorization concepts such as OAuth 2.0, OpenID Connect, tokens, sessions, scopes, and entitlements
Experience designing identity orchestration layers, middleware, or gateways between clients, identity providers, and backend services
Comfortable working within vendor constraints and extending platforms through configuration, APIs, and custom services
Familiarity with secure session handling, token refresh, logout flows, and cross-application identity consistency
Senior-Level Expectations
You take ownership of systems beyond feature delivery, including reliability and long-term health
You make decisions based on data and instrumentation, not ass