Lead Full Stack .NET Developer – React | Toronto, ON (Hybrid)

Toronto, ON
Hybrid
Posted Nov 6, 2026
1 position

Opens LinkedIn

Employment type: Contract
Experience level: Lead
Posting language: English
Office presence: 3 days per week
Application method: Apply on LinkedIn (LinkedIn sign-in required)

Job summary

Develop React UI components and .NET Core APIs and services, write unit and integration tests, and participate in code reviews and Agile ceremonies. Contribute to architecture and technical discussions, support cloud-based and containerized deployments, and mentor team members.

Job details

We are looking for an experienced Senior Full Stack .NET Developer for a contract opportunity in Toronto, Canada. Position: Lead Full Stack .NET Developer – React & PostgreSQL Work Arrangement: Hybrid – 3 Days Onsite/Week Interview Process: 1 Internal Interview + 1 Client Interview What the Client Is Looking For A strong Full Stack Developer with expertise in .NET Core, React, and PostgreSQL, capable of developing scalable UI components and backend APIs. The ideal candidate should have strong application architecture knowledge, hands-on testing experience, and familiarity with cloud deployment and containerized environments. Mandatory Skills & Experience Strong experience with C# and .NET Core Hands-on experience with React Experience developing and designing REST APIs Strong knowledge of PostgreSQL Experience with Unit Testing and Integration Testing Familiarity with Docker and containerized deployments Experience with GCP or equivalent cloud platforms Strong understanding of application architecture and debugging Experience participating in Agile/Scrum ceremonies Ability to mentor team members and contribute to code reviews Key Responsibilities Develop React UI components and .NET Core APIs/services. Write unit and integration tests and participate in code reviews. Support Agile ceremonies, including standups, sprint planning, demos, and retrospectives. Contribute to application architecture, estimation, and technical discussions. Support containerized deployments and cloud-based applications. Mentor team members and help improve development practices.

What you’ll do

Requirements

Requires strong experience with C# and .NET Core, hands-on React development, REST API design, and PostgreSQL. Candidates should also have testing experience, familiarity with Docker and cloud platforms such as GCP, knowledge of application architecture and debugging, and the ability to contribute to Agile practices, code reviews, and mentoring.