Title: Human Resources Administrator

Location: Toronto, ON

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

Position Type: Net Current

Join the Future of Reliable Energy

Are you ready to shape the future grid? Hydrostor, a leading energy storage, technology and infrastructure company dedicated to developing utility-scale, long-duration energy storage solutions, is seeking an HR Administrator to join our team in Toronto. We’re supporting the development of a more resilient electricity grid and invite you to be at the forefront of this work

Why Hydrostor?

Our cutting-edge A-CAES technology is uniquely poised to revolutionize the energy landscape. Join us as we lead the way in shaping a reliable and secure energy future.

Your Mission

Reporting to the Chief People Officer, the HR Admin plays an important role in supporting a high-performing People & Culture team that is focused on creating exceptional employee experiences while enabling the organization's continued growth.

This role provides broad exposure across the HR function, with a strong focus on recruitment coordination, HR systems administration, employee onboarding, benefits administration, payroll coordination, and employee engagement initiatives. As a trusted member of the team, you'll help ensure our people processes are efficient, compliant, and scalable while contributing to a positive, values-driven culture.

If you're an organized, proactive HR professional who enjoys balancing administrative excellence with meaningful employee interaction, we'd love to hear from you.

Your Day-to-Day Adventures

Talent Acquisition & Recruitment





- Coordinate full-cycle recruitment activities for a variety of roles across the organization.
- Support the creation and posting of job descriptions across multiple recruitment channels.
- Review applications, conduct initial candidate screenings, and proactively source talent through platforms such as LinkedIn.
- Lead all intern and co-op recruitment activities, including building relationships with educational institutions, coordinating interviews, and supporting student onboarding.

HR Administration & Systems

- Maintain employee records and ensure accurate employee data within our Human Capital Management System (currently HiBob).
- Process employee lifecycle changes, including new hires, promotions, transfers, and departures.
- Support benefits administration, including enrollments, changes, and employee inquiries.
- Maintain organized and compliant employee files and HR documentation.

Payroll & Compliance

- Partner with third-party payroll providers to ensure timely and accurate employee updates.
- Coordinate and prepare bi-weekly payroll submissions and related documentation.
- Serve as a key contact for annual financial audit activities and HR-related reporting requirements.

Employee Experience & Culture

- Coordinate onboarding and orientation activities that help new employees feel welcomed, informed, and set up for success.




- Assist with employee recognition programs that celebrate accomplishments and reinforce our values.
- Partner with HR and Marketing teams to support engagement initiatives, social events, and team-building activities.
- Contribute to People & Culture projects and strategic initiatives throughout the year.

Who You Are

We're looking for someone who is detail-oriented, collaborative, and passionate about creating positive employee experiences. You enjoy working across a variety of tasks, thrive in a fast-paced environment, and bring a customer-service mindset to everything you do.

You are equally comfortable managing administrative details, supporting recruitment efforts, and building strong relationships with employees and stakeholders across the business.

What You Bring

- Approximately 1-3 years of experience in Human Resources, Talent Acquisition, or a related People & Culture role.
- Post-secondary education in Human Resources, Business Administration, or a related field.
- Progress toward, or completion of, a Chartered Professional in Human Resources (CHRP) designation is considered an asset.
- Experience working with HRIS/HCMS platforms; experience with HiBob is an asset.
- Strong organizational skills with exceptional attention to detail and the ability to manage multiple priorities simultaneously.
- Excellent communication and interpersonal skills, with a high degree of professionalism and discretion.
- Proficiency with Microsoft Office and collaboration tools.
- A proactive, team-first approach and willingness to contribute wherever support is needed.

Compensation Details <

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