Fullstack Engineer - C#/.NET & React

About The Opportunity Avenue Code is looking for a Fullstack Engineer to join a Platform Engineering & Enterprise Systems team.

In this role, you will help design, build, and evolve internal platforms that support day-to-day operations across a large, multi-brand organization.

Working as part of a collaborative product squad, you will develop scalable web applications and backend services that improve operational efficiency and enhance the employee experience for thousands of team members across Canada. This opportunity is ideal for a developer who enjoys solving real business problems, modernizing applications end-to-end, and contributing to a fast-paced Agile environment.

Responsibilities

• Design, develop, test, and deliver high-quality full-stack software solutions and product features.
• Build and maintain modern web applications and backend services using C#, .NET, React, and TypeScript.
• Develop, integrate, and support RESTful APIs, including integrations with third-party and vendor platforms.
• Write and optimize SQL queries, stored procedures, and data transformation logic against relational databases.
• Contribute to the design and implementation of enterprise data integration and ingestion workflows.
• Deploy, configure, and support cloud-based applications and services within Microsoft Azure environments.
• Collaborate closely with developers, QA engineers, product managers, and business stakeholders to deliver scalable and reliable solutions.
• Participate in code reviews and contribute to maintaining high standards for code quality, performance, scalability, and maintainability.
• Troubleshoot and resolve issues across application, API, and database layers.
• Contribute to logging, monitoring, and operational best practices to support system reliability and performance.
• Create and maintain technical documentation to support knowledge sharing and operational continuity.
• Take ownership of assigned initiatives by managing priorities, communicating progress, and contributing throughout Agile/Scrum sprint cycles.
• Continuously learn and adapt to evolving technologies, tools, and engineering best practices.

Required Qualifications

• 3+ years of professional experience in full-stack or backend-focused software development.
• Strong proficiency in C# and .NET / .NET Core.
• Experience developing frontend applications using React, with TypeScript preferred.
• Strong knowledge of SQL and relational database design, including complex queries and stored procedures.
• Demonstrated experience building and consuming RESTful APIs.
• Solid understanding of data integration patterns, including batch processing and API-driven pipelines.
• Hands-on experience with Microsoft Azure cloud services.
• Familiarity with logging, monitoring, and production debugging practices.
• Proficiency with Git in a collaborative development environment.
• Familiarity with Agile and Scrum software delivery methodologies.
• Strong analytical and problem-solving skills.
• Excellent written and verbal communication skills.

Nice To Have Skills

• Experience with Azure cloud services and CI/CD pipelines, including Azure DevOps or GitHub Actions.
• Experience working with microservices architecture and distributed systems.
• Familiarity with authentication and authorization standards such as OAuth2, OpenID Connect, and JWT.
• Exposure to DevSecOps practices and secure application development.
• Experience using AI-assisted development tools to improve developer productivity and code quality.

Avenue Code reinforces its commitment to privacy and to all the principles guaranteed by the most accurate global data protection laws, such as GDPR, LGPD, CCPA, and CPRA. Candidate data shared with Avenue Code will be kept confidential and will not be transmitted to disinterested third parties, nor will it be used for purposes other than the application for open positions. As a consultancy company, Avenue Code may share your information with its clients and other companies from the Compass UOL Group to which Avenue Code consultants are allocated to perform their services.