<p>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.</p><p><br></p><p>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.</p><p><br></p><p><strong>Key Responsibilities</strong></p><p><br></p><p>Define, own, and evolve the overall system architecture for a greenfield platform</p><p>Select, evaluate, and lock in the technology stack and architectural patterns</p><p>Design deterministic, calculation-heavy, financial-grade systems with auditability and correctness as first-class concerns</p><p>Establish architectural standards, invariants, non-goals, and clearly defined failure modes</p><p>Partner closely with the founder and product team to translate product vision into technical design and execution</p><p>Provide architectural guidance across implementation, ensuring scalability, performance, reliability, and maintainability</p><p><br></p><p><br></p><p><strong>Required Qualifications</strong></p><p><br></p><p>10+ years of backend engineering experience, with 3+ years in an architecture or principal-level role</p><p>Strong proficiency in .NET / C# (required); experience with other strongly typed languages is a plus</p><p>Deep experience with ASP.NET Core, Entity Framework Core, and distributed .NET architectures</p><p>Strong relational database expertise with SQL Server / Azure SQL or PostgreSQL, including data modeling and transaction management</p><p>Proven experience designing distributed systems, deterministic processing pipelines, and complex business rule engines</p><p>Strong understanding of cloud-native architecture, with Azure strongly preferred</p><p>Solid grasp of design patterns, system invariants, and scalability principles</p><p><br></p><p><br></p><p><strong>Nice-to-Have Experience</strong></p><p><br></p><p>Workflow engines (e.g., Temporal)</p><p>Messaging and event systems (Azure Service Bus, Kafka)</p><p>Docker and Kubernetes</p><p>Event-driven architectures or event sourcing</p><p>CI/CD pipelines and modern DevOps practices</p><p><br></p><p><br></p><p>*This job posting is for a current vacancy with our client.</p><p><br></p><p>*Our specialized recruiting professionals apply their expertise and utilize our proprietary AI to find you great job matches faster.</p>

<p>*architect</p><p>*.NET</p><p>*C#</p><p>*enterprise</p><p>*seniorarchitect</p>

<p>Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.</p> <p>Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. <a href="https://www.roberthalf.com/ca/en/mobile-app" target="_blank">Download the Robert Half app</a> and get 1-tap apply, notifications of AI-matched jobs, and much more.</p> <p>This job posting is for a current vacancy with our client.</p> <p>Our specialized recruiting professionals apply their expertise and utilize our proprietary AI to find you great job matches faster.</p> <p>Questions? Call your local office at 1.888.490.4429. All applicants applying for Canadian job openings must be authorized to work in Canada.</p> <p>Only job postings for jobs located in Quebec appear in French.</p> <p>© 2025 Robert Half. By clicking “Apply,” you’re agreeing to Robert Half’s <a href="https://www.roberthalf.com/ca/en/terms">Terms of Use</a> and <a href="https://www.roberthalf.com/ca/en/privacy">Privacy Notice</a>.</p>