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Job Type: Permanent Work Model: Hybrid Reference code: 133257 Primary Location: Toronto, ON All Available Locations: Toronto, ON; Ottawa, ON

What will your typical day look like?

We're hiring a hands-on Solution Architect who will design and evolve both the high-level and detailed architecture for new product features while supporting and improving existing capabilities. You'll lead with code and architecture-pairing with engineers, producing reference implementations, and ensuring robust, scalable, cost-efficient solutions in Azure using .NET/C#, React/Node/TypeScript, and modern data-processing patterns.

Primary Responsibilities:

• Define HLD/LLD for new features and complex refactors (context & container diagrams, sequence diagrams, deployment views, data flows).
• Author and steward Architecture Decision Records (ADRs), validate decisions via experiments and load tests.
• Build reference implementations/PoCs in C#/.NET and React/Node to de-risk patterns, performance, and operability.
• Review and merge PRs, provide actionable feedback, and pair with engineers on tricky problems.
• Design event-driven and streaming architectures leveraging Azure Service Bus, Functions, App Services, AKS, and API Management.
• Engineer for high throughput and low latency: concurrency, async I/O, caching (Redis), partitioning, idempotency, back-pressure, and circuit-breaking.
• Model data across Azure SQL and Cosmos DB, including indexing, partitioning, consistency, and query optimization.
• Guide modern React (TypeScript) architecture: component design, state management, performance profiling, accessibility, SSR/BFF patterns with Node.js.
• Ensure clean API contracts (REST/JSON, GraphQL where appropriate), schema governance, and sound error semantics.
• Drive observability: distributed tracing (OpenTelemetry), metrics and logs (App Insights), and actionable dashboards/alerts.
• Bake in security: OIDC/OAuth2 (Entra ID), secrets management (Key Vault), OWASP ASVS, threat modeling.
• Define SLOs/SLIs, error budgets, and ensure production readiness-on-call participation and RCA for major incidents.
• Champion CI/CD (Azure DevOps or GitHub Actions), IaC (Bicep/Terraform), repeatable environments, and golden paths/templates.
• Optimize for cost and performance (FinOps): right-sizing compute, data tiering, caching, and workload scheduling

About the team

Deloitte Technology works at the forefront of technology development and processes to support and protect Deloitte around the world. In this truly global environment, we operate not in what is but rather what can be to help Deloitte deliver and connect with its clients, its communities, and one another in ways not previously conceived.

Enough about us, let's talk about you

Required:

• At least 7 years experience building production software, 3+ years as a hands-on architect or principal engineer.
• Deep proficiency in C#/.NET (7/8), ASP.NET Core, WebAPI, async/concurrency, performance profiling.
• Strong React (18+) + TypeScript and Node.js experience, testing with Jest/Cypress.
• Azure expertise: App Services, Functions, AKS, API Management, Service Bus/Event Hubs, Azure SQL, Cosmos DB, Storage, Key Vault, App Insights.
• Proven delivery of data-processing-intensive systems (batch/stream, resiliency, throughput, cost).
• CI/CD (Azure DevOps/GitHub Actions), IaC (Bicep/Terraform), containers (Docker, Kubernetes).
• Solid understanding of architecture trade-offs, DDD, integration patterns, and secure design.

Preferred:

• Experience with Databricks / Data Lake, Tableau or PowerBI.
• Multi-region active-active design, disaster recovery (RPO/RTO), OpenAPI/Swagger, GraphQL.
• Certifications: Azure Solutions Architect Expert, DevOps Engineer Expert.

Total Rewards

The salary range for this position is $85,000 - $156,000, and individuals may be eligible to participate in our bonus program. Deloitte is fair and competitive when it comes to the salaries of our people. We regularly benchmark across a variety of positions, industries, sectors, targets, and levels. Our approach is grounded on recognizing people's unique strengths and contributions and rewarding the value that they deliver.

Our Total Rewards Package extends well beyond traditional compensation and benefit programs and is designed to recognize employee contributions, encourage personal wellness, and support firm growth. Along with a competitive base salary and variable pay opportunities, we offer a wide array of initiatives that differentiate us as a people-first organization. On top of our regular paid vacation days, some examples include: $4,000 per year for mental health support benefits, a $1,300 flexible benefit spending account, firm-wide closures known as "Deloitte Days", dedicated days of for learning (known as Development and Innovation Days), flexible work arrangements and a hybrid work structure.