Leonardo seeks a Senior Software Developer in Toronto focused on APIs, architecture, data pipelines, and secure Microsoft application delivery.

As a senior individual contributor, you will design and support business applications serving hospitality customers and partners. The work includes RESTful and SOAP APIs, relational databases, ETL/ELT workflows, distributed architecture, and performance optimization. Customer needs guide every technical decision.

Key Responsibilities:

- Design maintainable integrations with customer and partner systems
- Build and support data pipelines and ETL/ELT workflows
- Optimize queries, APIs, and data processing performance
- Investigate production issues and implement durable remediation
- Improve logging, metrics, tracing, alerting, and documentation

Requirements:

- 10+ years of professional software development experience
- Bachelor’s degree in Computer Science or related discipline
- Solid multi-tier and distributed architecture knowledge
- Experience with RESTful and SOAP APIs
- Expertise in C#, .NET, SQL Server, and Blazor

Bring architecture, integration, performance, and Microsoft development expertise to Leonardo’s customer-centered hospitality software.

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