Application Architect .NET

Title: Application Architect _.NET

Location: Hybrid 3X/Week onsite in Markham, ON

Contract: 6 Months to Hire

Start Date: ASAP

Interview Process: 2 Rounds

Compensation: $70-$75/hour

Day to Day:

• The architect will lead the middleware design supporting the order management system migration, working closely with the architecture director and participating in hands-on whiteboarding and solutioning sessions.


• They will define integration patterns, architect synchronous APIs and asynchronous event-driven workflows, and produce high- and low-level designs across Azure Event Hub, microservices, API gateways, and messaging platforms.


• This role requires partnering with .NET and Node.js teams to translate architecture into scalable solutions, guiding AKS deployment approaches, and ensuring proper implementation of event publishing, consumption, and queue-based processing.


• They will design how core systems such as e-commerce platforms, email services, Azure middleware, SQL Server, Cosmos DB, and Google Cloud Platform BigQuery connect and exchange data.


• The architect will also determine when to use direct APIs, when to adopt event streaming through Event Hub, and when to leverage message queues for reliable transactional workflows.


• Strong collaboration with engineering teams, mentoring senior developers, and clearly communicating architectural decisions are essential components of the role.

Must-haves:

• Minimum 10 years of application development experience with the last two years heavily focused on design or architecture.


• Hands-on experience designing and building RESTful APIs in .NET or Node.js.


• Strong understanding of event-driven architecture and asynchronous messaging patterns.


• Direct experience with Azure messaging technologies including Event Hub, Service Bus, queues, topics, and pub/sub.


• Experience working with SQL Server and Azure Cosmos DB.


• Experience deploying solutions on Azure Kubernetes Service (AKS).


• Ability to design integrations across multi-cloud environments (Azure and Google Cloud Platform).


• Ability to whiteboard and design solutions in real time and explain tradeoffs clearly.


• Ability to articulate strengths and gaps in technical knowledge.

Nice to have:

• Experience with microservices (Kafka, MQ, or similar)


• Experience with payment gateway integrations.


• Experience with middleware platforms (Mulesoft, Boomi, TIBCO, etc.).


• Experience with Kafka, RabbitMQ, or ActiveMQ in microservices environments.


• Experience in cloud data environments such as Google Cloud Platform BigQuery.


• Cloud certifications (Azure or Google Cloud Platform).


• Experience supporting OMS or ERP modernization