st. catharines, on administrative & consulting Jobs – 9 Openings This Week

Office Administrator
Niagara Soils Solutions Ltd —Thorold, ON
- From $24 an hour
- Part-time
- Microsoft Word
- Microsoft Excel
- Administrative experience
Quick apply
5d
Human Resources Consultant
Niagara College Canada —Niagara-on-the-Lake, ON
- $100,363–$125,454 a year
- Hybrid work
- Human resources
- Business
- Communication skills
- Disability insurance
- Dental care
1d
Forensic Investigator
Treasury Board Secretariat —St. Catharines, ON
- $86,379–$127,288 a year
- Weekends as needed
- Bilingual
- Word processing
- English
6d
Fleet Procurement Coordinator
Town of Oakville —Oakville, ON
- $69,259–$84,483 a year
- Full-time
- Microsoft Excel
- Microsoft Office
- Analysis skills
1d
Pharmacy Assistant After Hours Support (Data Entry) Part Time
CareRx —Oakville, ON
- $19–$23 an hour
- Part-time
- Microsoft Office
- Organizational skills
- Communication skills
- Dental care
Quick apply
5d
Senior Donor Engagement Manager (Hamilton-CDE)
Indwell —Hamilton, ON
- $88,740–$105,264 a year
- Weekends as needed
- Public speaking
- Microsoft Office
- Supervising experience
- Disability insurance
- Dental care
Quick apply
1d
Pharmacy Assistant (Kroll Data Entry)
CareRx —Oakville, ON
- $19–$23 an hour
- Microsoft Office
- Organizational skills
- In-person
- Dental care
Quick apply
Manager, Technical Services - Electrical
Sheridan College —Oakville, ON
- $99,544–$124,429 a year
- Full-time
- Customer service
- Engineering
- Project management

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Talent Acquisition Specialist
Romet Limited Canada —Mississauga, ON
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$65,000–$74,000 a year
6d
Talent Consultant
Adecco Canada —Brampton, ON
Develop and execute targeted sourcing strategies using job boards, social media, networking, and referrals. Deliver market insights, talent trends, and hiring…
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6d

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Investment and Executive Associate
Smart Investments Group —Markham, ON
A disciplined, risk-first approach emphasizing capital preservation and sustainable returns. Provide executive support to senior leadership (Chairman / CEO /…
$75,000–$90,000 a year
Quick apply
11d
Human Resources Coordinator
CLS Catering Services Ltd. —Mississauga, ON
In return, we offer an excellent compensation program including a 100% employer paid benefits package, competitive salary, pension program, free parking and hot…
$48,000–$58,000 a year
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5d

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Office Administrator

Niagara Soils Solutions Ltd
Thorold, ON

Quick apply

Job details

Permanent | Part-time
5 days ago

Benefits

Casual dress
On-site parking

Skills

Microsoft Word
Microsoft Excel
Accounts payable
Filing
Administrative experience
Accounting
QuickBooks
Payroll
Communication skills

Full job description

OFFICE ADMINISTRATOR

At Niagara Soils Solutions Ltd., we’re committed to tackling environmental issues with forward-thinking, sustainable approaches. Our skilled professionals manage diverse projects—simple to complex—for both public and private sector clients throughout the Niagara Region.

We are seeking a detail-oriented Office Administrator with strong accounting experience to support our growing consulting firm. This is a key position responsible for supporting accounting, payroll, and administrative functions while managing day-to-day office operations.

The role can be structured as part-time for the right candidate, with the potential to transition to full-time hours for someone with strong experience and the ability to take on additional responsibilities.

This position is ideal for someone who enjoys balancing accounting responsibilities with broader office coordination in a professional services environment.

KEY RESPONSIBILITIES

Accounting & Finance

Manage Accounts Payable and Accounts Receivable
Perform account reconciliations and support financial record-keeping
Process invoices, track collections, and follow up on outstanding balances
Assist with payroll processing and maintain accurate employee records
Enter and maintain data in Quickbooks Online (experience preferred)
Complete and submit Source Deductions and WSIB reporting

Administration & Office Operations

Oversee daily office operations including phones, mail, filing, and general organization
Maintain and improve administrative systems and workflows

HR & General Support

Assist with employee onboarding and HR record-keeping
Support internal team coordination and general administrative needs

Qualifications & Experience

Minimum 3+ years experience in an accounting or bookkeeping role (AR/AP, invoicing, payroll)
Experience with QuickBooks Online is required
Advanced proficiency in Microsoft Excel and Word
Strong attention to detail and accuracy
Ability to manage multiple priorities and deadlines
Excellent communication and interpersonal skills
Accounts Payable and Receivable
Collections
Assist in human resources functions such as onboarding new employees and maintaining employee records
Support budgeting activities and financial record-keeping
Oversee office operations including mail distribution, filing systems, and general office upkeep
Assist with payroll processing and maintain accurate records
Utilize QuickBooks for financial transactions (account reconciliations, invoice processing, data entry)
Self-motivated with the ability to work independently

Why Join Us

Flexible hours with part-time or full-time opportunity depending on fit
Stable, growing environmental consulting firm with long-term opportunities
Collaborative and professional team environment
Role with variety and responsibility across accounting and office operations
Opportunity to take ownership and improve internal processes

How to Apply

If you are a motivated and detail-oriented professional looking for a well-rounded administrative and accounting role, we encourage you to apply.

NSSL is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Job Types: Part-time, Permanent

Pay: From $24.00 per hour

Benefits:

Casual dress
On-site parking

Flexible language requirement:

French not required

Application question(s):

Do you have Quickbooks experience?

Work Location: In person

Quick apply

Refine Your Search

administrative & consulting jobs in st. catharines, on

Office Administrator

Human Resources Consultant

Forensic Investigator

Fleet Procurement Coordinator

Pharmacy Assistant After Hours Support (Data Entry) Part Time

Senior Donor Engagement Manager (Hamilton-CDE)

Pharmacy Assistant (Kroll Data Entry)

Manager, Technical Services - Electrical

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