09/29/2025

Company Overview:

DEFSEC Technologies Inc. (formerly KWESST Micro Systems Inc.) is an Ottawa-based defence and security company that develops and delivers next-generation technology for military and first responders. The Company is proudly Canadian and provides Dismounted/Mounted Domain Expertise in Command-and-Control software development, integration, and support services.

Job Description:

DEFSEC is seeking a detail-oriented and motivated Assistant Controller with 3-5 years of experience to join our finance team in this newly created role. The ideal candidate is a CPA student or graduate with a strong background in public accounting or experience at an accounting firm. The Assistant Controller will support the Controller in overseeing financial operations, ensuring accurate financial reporting, and maintaining compliance with regulatory standards.

This is an on-site position located in Kanata.

Key Responsibilities:

• Assist in the preparation of monthly, quarterly, and annual financial statements and managements’ discussion and analysis (MD&A) in accordance with IFRS 


• Support the Controller in managing general ledger activities, including journal entries, account reconciliations, and month-end close processes 


• Analyze financial data to identify trends, variances, and opportunities for cost savings or process improvements 


• Assist in the preparation and coordination of quarterly review, annual audit and SOX audit, working closely with external auditors to ensure compliance 


• Maintain internal controls to safeguard company assets and ensure accurate financial reporting 


• Support budgeting, forecasting, and cash flow management processes 


• Collaborate with cross-functional teams to provide financial insights and support business decisions 


• Assist in implementing and improving accounting systems, processes, and procedures 


• Supervise and mentor junior accounting staff as needed 

Qualifications: 

• Bachelor’s degree in Accounting, Finance, or a related field 

• CPA designation or actively pursuing CPA certification (preferred) 

• 3-5 years of relevant experience, with at least 2 years in a public accounting firm or equivalent accounting firm experience 

• Strong knowledge of International Financial Reporting Standards (IFRS) 

• Proficiency in ERPs and advanced Microsoft Excel skills 

• Excellent analytical and problem-solving skills with a keen attention to detail 

• Strong organizational and time-management skills, with the ability to meet deadlines in a fast-paced environment 

• Effective communication skills, both verbal and written 

• Deadline and detail oriented 

• Ability to work independently and collaboratively within a team 

• Must be able to obtain and maintain Canadian Security Clearance and Controlled Goods Program Clearance.  

• Eligibility to work in Canada either as a Canadian Citizen or Permanent Resident. 

How to Apply:

If you have a strong passion for this role and are eager to join the dynamic team at DEFSEC, we invite you to submit your resume to employment@defsectec.com

Please make sure to emphasize your pertinent experience and any certifications you hold.

DEFSEC is an equal opportunity employer and is committed to providing equal employment opportunities to all qualified individuals regardless of race, color, religion, sex, gender identity, sexual orientation, marital status, national origin, age, disability of any other protected status under applicable law. We celebrate diversity and are dedicated to creating a work environment that is inclusive and welcoming to all, including LGBTQ2S+ individuals. Our hiring decisions are based on qualifications, merit, and business needs. In every step of the interview procedure, DEFSEC is committed to providing accommodations.