Senior Developer - RSI

Senior Developer – RSI at Reamined Systems Inc. (ISC)

Company Name: Reamined Systems Inc.

Location: Toronto, Ontario

Status: Two (2) Full‑time Permanent Vacancies

Salary: $78,000 – $117,000 per year (depending on experience and qualifications)

Closing Date: January 18, 2026

Reamined Systems Inc. (RSI) provides specialized real‑property assessment and tax delivery assistance to municipalities in Ontario, Canada. We are looking for two experienced Senior Developers to help grow our business, deliver high‑quality web applications, and contribute to our future.

• Design, develop, and maintain web‑based business applications using C#, ASP.NET MVC/ASP.NET Core, and Telerik UI components.
• Build and optimize SQL Server databases, stored procedures, and queries for performance and reliability.
• Participate in all stages of the software development lifecycle – requirements analysis, architecture, coding, testing, and deployment.
• Collaborate with cross‑functional teams to gather and refine business requirements.
• Review code, mentor junior developers, and enforce best practices and coding standards.
• Identify and troubleshoot software defects and performance bottlenecks.
• Contribute to continuous improvement initiatives, including process automation, CI/CD, and Dev Ops practices.
• Maintain comprehensive technical documentation.
• Perform other related duties as required.

• Bachelor’s degree in Computer Science, Software Engineering, or a related field.
• 5+ years of software development experience using C# and .NET (Framework/Core) with Web APIs.
• Strong knowledge of HTML5, CSS, JavaScript, and modern front‑end frameworks.
• Experience with Telerik UI for web development and version control (Azure Dev Ops or similar).
• Proficiency in SQL Server (T‑SQL, stored procedures, query optimization, database design).
• Strong understanding of OOP, design patterns, and SOLID principles.

• Experience with Delphi.
• Familiarity with Power BI for data visualization.
• Exposure to asynchronous programming, caching, and queue systems.
• Experience with Azure Cloud, CI/CD pipelines, or Docker.
• Knowledge of Agile/Scrum methodologies.

• Strong analytical and problem‑solving skills for identifying and resolving software issues and performance challenges.
• Effective collaboration and communication skills for cross‑functional teamwork.
• Commitment to continuous improvement through process automation, CI/CD, and modern Dev Ops practices.
• Adherence to coding standards, SOLID principles, and best practices to ensure code quality and maintainability.
• Experience mentoring junior developers and fostering knowledge sharing.

This position is eligible for a hybrid work arrangement consisting of in‑office and remote work.

• We believe in progress with purpose.
  • Innovative technology
  • Growth through strategic partnerships
  • Investment in new products
• We support your growth.
  • Career development opportunities
  • Education support
• We care about people.
  • Competitive salary and benefits package
  • Hybrid work schedule
  • Recognition programs

• Seniority level: Mid‑Senior
• Employment type: Full‑time
• Job function: Engineering and Information Technology
• Industries: Information Services

If this opportunity interests you, please apply by January 18, 2026
. Only selected candidates will be contacted for interview.