Dayforce is a global human capital management (HCM) company headquartered in Toronto, Ontario, and Minneapolis, Minnesota, with operations across North America, Europe, Middle East, Africa (EMEA), and the Asia Pacific Japan (APJ) region.
Our award-winning Cloud HCM platform offers a unified solution database and continuous calculation engine, driving efficiency, productivity and compliance for the global workforce.
Our brand promise - Makes Work Life Better - Reflects our commitment to employees, customers, partners and communities globally.
About the opportunity Dayforce is building a next-generation Agent Platform to power intelligent automation, AI-driven workflows, and tool-enabled execution across our product ecosystem.
We are seeking a Senior Software Developer to design and build core services that enable secure, scalable, and observable AI agent execution. This role focuses on deep technical implementation, platform reliability, and enabling other engineering teams to successfully integrate with Agent Platform capabilities.
The ideal candidate is a strong hands-on engineer who thrives in distributed systems environments and enjoys solving complex backend and infrastructure challenges.
What You'll Do Core Engineering Design and implement production-grade backend services supporting AI-driven workflows
Contribute to execution orchestration, task routing, and tool invocation systems
Develop APIs and service contracts that are reliable, extensible, and well-documented
Implement robust authentication, authorization, and secure execution patterns




Reliability & Observability Build systems with strong logging, metrics, and tracing from the ground up
Improve system resilience, fault tolerance, and performance
Participate in production readiness, monitoring, and incident response processes
Platform Enablement Collaborate with product and engineering teams integrating with the Agent Platform
Provide technical guidance on best practices and integration patterns
Contribute to reusable infrastructure components and developer tooling
Skills and experience we value Able to work with a distributed team
Strong understanding of object-oriented design and development
5+ years of delivering enterprise-level software and building high performing applications
In depth knowledge of C# and .NET framework
Strong with SQL, TSQL, database design, and query optimization
Experience building high performance and scalable applications
Experience with or desire to work in an agile development environment
Interest in AI-assisted software development and emerging technologies
Exposure to integrating AI-powered capabilities or third-party AI services into applications




Familiarity with modern AI developer tooling such as GitHub Copilot, ChatGPT, or similar tools
Understanding of how AI and automation can enhance user and developer experiences
Curiosity around practical applications of large language models (LLMs) within enterprise software
What would make you really stand out Experience working with SaaS products
Experience building tools for use by other developers
Experience experimenting with AI/LLM-powered features or integrations
Awareness of emerging AI trends and their application within modern software development workflows
What's in it for you Dayforce is fueled by the diversity of our talented employees. We are an equal opportunity employer and consider and embrace ALL individuals and what makes them unique. We believe our employees should be happy and healthy, with peace of mind and a sense of fulfillment.
We encourage individuals to apply based on their passions.
Dayforce encourages personal and professional growth. We offer excellent time away from work programs, comprehensive wellness initiatives and recognition through competitive pay and benefits.
With a commitment to community impact, including volunteer days and our charity, Dayforce Cares we provide opportunities for you to thrive both in your career and personal life. Our focus is not just on your job but on supporting you to be the best version of yourself.
Artificial intelligence may be used in the screening, assessment, or selection of applicants for this position.

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📌 Senior .Net Software Developer (Ontario)
🏢 Dayforce
📍 Ontario