Senior Full Stack Developer — Hybrid, Flexible Hours

LRO Staffing; Mississauga; Hybrid; CAD 110,000 - 120,000; Full time

Benefits offered by this job

Flex Time

Strong benefits

Hybrid work

Job summary

LRO Staffing is seeking a Senior Full Stack Developer to join our engineering team. You will design, develop, and maintain full-stack web applications using a modern .NET-based stack, with emphasis on Blazor UI and Azure-based services.

You'll work across legacy Classic ASP codebases and modern cloud-native architectures, collaborate with product and design, mentor junior developers, and help shape engineering standards while delivering high-impact solutions.

Qualifications

• 5+ years of professional software development experience with a strong full-stack background.
• Ability to work with legacy codebases and modern architectures while staying collaborative.
• Strong communication skills to explain technical decisions to non-technical stakeholders.
• Team-first attitude with ownership and accountability.
• Curiosity and commitment to continuous learning.

Responsibilities

• Design, develop, and maintain full-stack web applications using a modern .NET-based stack.
• Work with Classic ASP codebases—maintaining, refactoring, and migrating legacy systems where appropriate.
• Build rich, responsive user interfaces using Blazor (WebAssembly and/or Server).
• Develop and maintain RESTful APIs and backend services using .NET Core.
• Write efficient, well-structured database queries and manage schemas in SQL Server/Azure SQL.
• Architect and implement Azure Microservices to support scalable, resilient application design.
• Collaborate closely with product, design, and other engineering stakeholders throughout the development lifecycle.
• Participate in code reviews, technical discussions, and contribute to setting engineering standards.
• Mentor junior developers and share knowledge across the team.
• Troubleshoot production issues and own resolution end-to-end.

Skills

Full-stack development

ASP/Blazor

Azure/Azure SQL

REST APIs

SQL Server

Legacy refactoring

Mentoring

Communication

Tools

ASP Classic

Azure

SQL Server

Job description

LRO Staffing is seeking a Senior Full Stack Developer to join our engineering team. You will design, develop, and maintain full-stack web applications using a modern .NET-based stack, with emphasis on Blazor UI and Azure-based services.

You'll work across legacy Classic ASP codebases and modern cloud-native architectures, collaborate with product and design, mentor junior developers, and help shape engineering standards while delivering high-impact solutions.