Senior Accountant

Senior Accountant

Location: Toronto, ON

Job Type: Full-Time – Hybrid (3+ days/week in office)

Travel Requirement: Up to approximately 10%

Are you ready to shape the future of sustainable energy? Hydrostor, a pioneer in Advanced Compressed Air Energy Storage (A-CAES) systems, is seeking a Senior Accountant to join our team in Toronto. We’re enabling the energy transition to a cleaner, more reliable electricity grid, and invite you to be at the forefront of this groundbreaking journey.

Our cutting-edge A-CAES technology is uniquely positioned to revolutionize the energy landscape. Join us as we lead the way in shaping a greener, more sustainable future.

We’re hiring a Senior Accountant to support our finance team with technical accounting expertise and collaboration across the organization. This role will focus on interpreting and applying IFRS standards, preparing financial documentation, and contributing to audit readiness and process improvements. The Senior Accountant will report to the Manager of Financial Reporting and work closely with internal stakeholders to ensure accurate and compliant financial reporting.

• Lead the interpretation and implementation of complex accounting standards under IFRS.
• Prepare clear, concise technical accounting memos for key transactions (leases, loans, revenue recognition, impairment, intercompany, etc.).
• Partner with cross-functional teams to ensure alignment with accounting policies and procedures.
• Assist in preparing financial statements and disclosures in accordance with IFRS.
• Stay ahead of changes in accounting standards and assess their impact.
• Support internal and external audits with technical insights and documentation.
• Contribute to automation and process improvement initiatives within the accounting function.
• Assist with quarterly journal entries, entity-level financials, and consolidation.
• Maintain and update quarterly working papers and year-end audit schedules.
• Respond to ad hoc requests from internal and external stakeholders with agility and professionalism.

You’re a seasoned accounting professional who brings both technical expertise and a collaborative spirit. You enjoy diving into the details, but you also see the bigger picture and understand how accounting supports strategic decision-making. You’re curious, adaptable, and committed to continuous learning. Whether you’ve worked in public accounting, a publicly traded company, or a fast-growing startup, you’re ready to bring your experience to a mission-driven organization.

• 7+ years of progressive accounting experience, with a strong focus on technical accounting.
• CPA designation (or equivalent) is required.
• Deep expertise in IFRS; familiarity with US GAAP.
• Experience in public accounting or a publicly traded company is preferred.
• Strong analytical and organizational skills, with excellent written and verbal communication.
• Proficiency in accounting software and Microsoft Excel.
• A collaborative mindset and a proactive approach to problem-solving.

To apply for this position, submit your resume by clicking "Easy Apply".

We thank all applicants for their interest, however, only those selected to move forward in the interview process will be contacted.

For more information on Hydrostor and the exciting journey we’re on visit our website at

At Hydrostor, we know that fostering an inclusive workplace, which values diversity, inclusion, and belonging is paramount to our success.

To fulfill our mission, our goal is to attract people who come from all backgrounds and walks of life, who bring diverse perspectives with wide-ranging experiences, and who share in our common passion to drive innovation and change the global energy landscape.

Hydrostor proudly embraces the principles of equal opportunity and inclusion. We are committed to providing opportunities for all employees and candidates. We ensure that all qualified applicants are considered for employment without regard to race, creed, colour, religion, gender, gender identity, gender expression, age, sexual orientation, national origin, marital status, parental, pregnancy, citizenship status, veteran status, disability, or any other protected status protected by applicable law.

Hydrostor is committed to making our application and interview process accessible to everyone, and we encourage applications from people with disabilities. If you require reasonable accommodation at any stage, please contact us at  In your application, we welcome you to specify your preferred pronouns (e.g. she/her/hers, he/him/his, they/them/theirs, etc.).

• Seniority level
  :
  Associate
• Employment type
  :
  Full-time
• Job function
  :
  Accounting/Auditing and Finance
• Industries
  :
  Renewable Energy Power Generation, Climate Technology Product Manufacturing, and Services for Renewable Energy