It architect Jobs in Oakville, ON

We are looking for a highly experienced Backend / Software Architect to define and own the architecture of a next-generation, financial-grade software platform being built from the ground up. This is a hands-on, high-impact role for someone who thrives in designing complex, deterministic systems and enjoys creating original architectural blueprints rather than maintaining legacy solutions.

You will work closely with the founder and product leadership to shape the technical vision, make foundational technology decisions, and build systems that are scalable, auditable, and production-ready from day one. Fully remote contract role.

Key Responsibilities

Define, own, and evolve the overall system architecture for a greenfield platform

Select, evaluate, and lock in the technology stack and architectural patterns

Design deterministic, calculation-heavy, financial-grade systems with auditability and correctness as first-class concerns

Establish architectural standards, invariants, non-goals, and clearly defined failure modes

Partner closely with the founder and product team to translate product vision into technical design and execution

Provide architectural guidance across implementation, ensuring scalability, performance, reliability, and maintainability

Required Qualifications

10+ years of backend engineering experience, with 3+ years in an architecture or principal-level role

Strong proficiency in .NET / C# (required); experience with other strongly typed languages is a plus

Deep experience with ASP.NET Core, Entity Framework Core, and distributed .NET architectures

Strong relational database expertise with SQL Server / Azure SQL or PostgreSQL, including data modeling and transaction management

Proven experience designing distributed systems, deterministic processing pipelines, and complex business rule engines

Strong understanding of cloud-native architecture, with Azure strongly preferred

Solid grasp of design patterns, system invariants, and scalability principles

Nice-to-Have Experience

Workflow engines (e.g., Temporal)

Messaging and event systems (Azure Service Bus, Kafka)

Docker and Kubernetes

Event-driven architectures or event sourcing

CI / CD pipelines and modern DevOps practices

• This job posting is for a current vacancy with our client.
• Our specialized recruiting professionals apply their expertise and utilize our proprietary AI to find you great job matches faster.
• architect
• .NET
• C#
• enterprise
• seniorarchitect

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This job posting is for a current vacancy with our client.

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