Application Support Specialist - Commerce

Contribute to the City of Hamilton, one of Canada’s largest cities - home to a diverse and strong economy, an active and inclusive community, a robust cultural and dining scene, hundreds of kilometers of hiking trails and natural beauty just minutes from the downtown core, and so much more. Join our diverse team of talented and ambitious staff who embody our values of sensational service, courageous change, steadfast integrity, collective ownership and being engaged empowered employees.

Help us achieve our vision of being the best place to raise a child and age successfully. #Be The Reason

• Job :
  Application Support Specialist
• Union: CUPE Local 5167
• Job Description  #: 7868
• Close date:
  Interested applicants please submit your application online at  by 4:00 p.m. on February 18, 2026.
• Duration: 24 months
• Vacancy type:
  This posting is for an existing vacancy
• Internal applicants should apply with your work e-mail address. External applicants are considered only after the internal posting process has been completed. Only applicants chosen for an interview will be contacted.

Summary of Duties

Reporting to the Supervisor, Business Applications, the Application Support Specialist - Commerce will play a crucial role in ensuring the smooth operation of point-of-sale (POS) systems. This position requires a strong background in Microsoft Dynamics 365. You will be responsible for assisting in the implementation, maintenance, troubleshooting, and optimization of our D365 Commerce System. Your expertise will be essential in maintaining the POS and Commerce system, providing technical support to clients, and contributing to a dynamic team environment.

General Duties

• Perform full lifecycle application development in Microsoft D365 Finance & Operations, including configuration, coding, unit testing, code walk-through, debugging and code deployment, utilizing Microsoft Azure Dev Ops, LCS and employing coding standard and patterns.
• Design and develop custom features and enhancements in D365 F&O using X++.
• Lead D365 F&O enhancement/optimization.
• Participate in system upgrades and apply patches while ensuring system stability and performance adhering to the SSDLC framework and processes.
• Collaborate with functional consultants and architects to understand business requirements and translate them into technical solutions.
• Manage support tickets, maintain the support site, monitor support emails, troubleshoot user issues, engage with vendors, and submit Vendor support requests.
• Investigate and support user incidents and requests by recommending, testing, and implementing possible solutions.
• Respond to critical incidents and collaborate with supervisors, IT operations teams, business stakeholders, and vendors to resolve application issues. Support user changes and security permissions as required.
• Leverage vendor support documentation to optimize request fulfillment and engage vendors as required to resolve issues.
• Support special projects related to implementing applications, changes, features, and processes, including integrations with other enterprise systems.
• Perform other related duties as assigned that are directly related to the major responsibilities of the job.

Qualifications