Full Time Weekend Software Developer Jobs in Toronto, ON

.Net/React Software Developer (Hybrid) Mississauga, Ontario, Canada The systems behind modern utility operations must exchange critical information securely, quickly, and without interruption. Survalent is looking for an experienced Software Developer to help expand our core SCADA platform into API and web technologies. You’ll build the secure connection between external applications and critical utility software while helping create a new configuration application from the ground up. If you enjoy solving complex security and performance challenges, this is an opportunity to help shape the next generation of our platform. Why You’ll Enjoy this Role * Build the secure API layer connecting external applications to our core SCADA/ADMS platform. * Help create a greenfield configuration application used by utility engineers to manage live databases and SCADA settings. * Influence the architecture, technology stack, development standards, and technical direction of new applications. * Solve meaningful challenges involving cybersecurity, authentication, scalability, and performance * Work across the full technology stack, from modern React interfaces to .NET APIs, databases, and real-time communications. What You’ll be Doing * Design and develop a secure DMZ-to-core API gateway that allows external applications to safely exchange data with the SCADA/ADMS platform. * Apply threat modelling, authentication, data protection, and performance optimization to maintain a regulated isolation boundary. * Build a new configuration application that enables utility engineers to manage live grid databases and SCADA settings. * Help define the architecture, technology stack, development standards, and technical direction for new applications. * Design and build RESTful APIs and full-stack web applications. * Take ownership of client-side and server-side architecture. * Optimize applications for performance, scalability, security, and operation under heavy loads. * Write tests and deliver dependable, mission-critical software where accuracy and correctness are essential. * Comply with Survalent’ s ISO/IEC 27001:2022 Information Security Management System (ISMS) Policy. * Comply with Survalent’ s ISO 9001:2015 Quality Management System (QMS) Policy. * Other duties as required What You’ll Bring * Degree or diploma in Computer Science, or equivalent experience. * 5 years of full-stack development experience. * Experience with React, JavaScript/TypeScript, and related front-end development tools. * Experience with C#, ASP.NET Core Web API, microservices, identity authentication, and SignalR/WebSockets. * Experience with SQL Server and/or PostgreSQL, MongoDB, and Redis. * Strong knowledge of object-oriented programming, multithreading, and performance-focused design. * Experience with Git, Docker, and CI-style workflows. * Strong communication skills and the ability to work cross-functionally. * Experience with C++, WPF, Windows Forms, mapping libraries, encrypted data, or real-time systems is an asset. This full-time role reports to the Team Lead of SCADA. The salary range for this role is $120,000- $130,000. If you are interested in joining a growing organization in this exciting role, please submit your cover letter and resume. About Us: Survalent Technology Corporation is the leading provider of real-time smart grid management systems for enabling visualization, optimization and improved operations for utilities. For six decades, we have helped more than 800 utilities use operational data to increase reliability, efficiency, and customer service. With our proven and reliable SCADA (Supervisory Control and Data Acquisition), Distribution Management System (DMS), Outage Management System (OMS), and Substation Automation (SA) solutions, utilities transform data into actionable intelligence. We partner with utilities across the globe to create mission critical solutions that will achieve the promise of the Smart Grid. Survalent values a diverse workplace and strongly encourages women, people of all races, color, creed, ancestry, ethnic origin, sexual orientation, gender identity or expression, age, religion, national origin, citizenship status, disability, marital status, family status, and those with disabilities to apply.  We use AI tools to help streamline parts of our recruitment process, but every application is reviewed by a member of our team. Survalent is an equal opportunity employer. We are committed to providing accommodations for persons with disabilities. If you require accommodation, we will work with you to meet your needs. While we appreciate the interest of all applicants, only those selected for an interview will be contacted.