Sr. Full Stack Software Developer (.NET Core, C#, ReactJS, Azure/AWS) with expertise in legacy application modernization, MS Access/on-prem migration, PowerShell scripting, SQL/DB2 - 8630

S.i. Systems • Toronto, Ontario • Posted June 23, 2026

Position Overview

Sr. Full Stack Software Developer (.NET Core, C#, ReactJS, Azure/AWS) with expertise in legacy application modernization, MS Access/on-prem migration, PowerShell scripting, SQL/DB2 -

Duration: 6 Months

Location: Winnipeg, London or Toronto 

Hybrid: Yes, 3x/week at preferred office 

Overview:

  • Help Lead a dynamic team to design, develop, integrate, test, transition to production, and maintain internal software applications.
  • Mentor and guide existing developers, providing technical leadership and fostering a collaborative team environment.
  • Collaborate with various functional teams, analysts, and architects to define and implement technical solutions.
  • Contribute to problem elimination through permanent fixes, including identifying solutions, scoping the work, and executing changes.
  • Provide production support, application monitoring, and tuning for applications.
  • Deliver meaningful r...