Office & administration jobs in Milton, Ontario

Find office & administration jobs in Milton, Ontario and nearby towns within 25 km. Read the full details and apply.

Newest first

Within 25 km of Milton

Added 2 months ago
Strategic Sourcing Specialist
Hatch
Mississauga, ON
Added 2 months ago
Administrative Assistant
Nippon Express Canada
Mississauga, ON
Added 2 months ago
VG
Operations Supervisor
Vortex Group of Companies
Mississauga, ON
- $70,000 to $90,000 CAD / year
Added 2 months ago
Survey Data Processor
EBC Inc.
Mississauga, ON
Added 2 months ago
Execution Contract Manager
Veolia Environnement SA
Oakville, ON
Added 2 months ago
Asset Management Analyst
Ausenco
Burlington, ON
Added 2 months ago
Senior Administrative Assistant
Doane Grant Thornton LLP
Mississauga, ON
Added 3 months ago
User Access Management Analyst (12-month contract)
goeasy Ltd.
Mississauga, ON
Added 1 month ago
Registered Products Administrator
Fidelity Canada
Mississauga, ON
Added 2 months ago
Administrative Coordinator - Mississauga
Raffi Jewellers Yorkdale Inc
Mississauga, ON
Added 3 months ago
Dental Receptionist/Dental Office Administrator
Dr. Seema Steffens Family and Cosmetic Dentistry
Mississauga, Ontario
Added 2 months ago
Operations Supervisor - Mississauga / Milton, ON
Alpine Recruitment and Talent Attraction
Mississauga, ON
Added 2 months ago
Medical Office Administrator/Lab Technician
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Brampton, ON
Added 3 months ago
Property Administrator-Residential
Morguard
Mississauga, Ontario
Added 2 months ago
Operations Supervisor
Vortex Freight
Mississauga, ON
Added 1 month ago
Property Administrator
4Sight Search Solutions Inc.
Milton, ON
Added 4 months ago
Insurance Business Consultant
Echelon Insurance
Mississauga, Ontario
Added 4 months ago
OP
Office Administrative Assistant
Onyx-Fire Protection Services Inc.
Mississauga, Ontario
- $40,000 to $45,000 CAD / year
Added 4 months ago
Operations Supervisor
Metro Supply Chain
Mississauga, Ontario
Added 3 months ago
Administrative Coordinator - Olive Grove School (2026-2027)
The Muslim Association of Canada
Mississauga, ON
Added 1 month ago
Senior Office Administrator
SSRG
Mississauga, ON
Added 4 months ago
Senior Contract Administrator, Water
R.V. Anderson Associates Limited
Burlington, Ontario
Added 3 months ago
A
Procurement Manager - Rail & Transit
AECOM
Mississauga, ON
- $135,000 to $185,000 CAD / year
Added 3 months ago
Administrative Assistant - Schools (Olive Grove School)
The Muslim Association of Canada
Mississauga, ON
Added 3 months ago
Contract Administrator
GHD Group Pty Ltd
Mississauga, ON

Onyx-Fire Protection Services Inc.

Office Administrative Assistant

Mississauga, ON, Canada

$40,000 to $45,000 CAD / year · Full-time

Within 25 km of Milton · About 20.9 km from the city centre

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Job details

Pay: $40,000 to $45,000 CAD / year
Job type: Full-time
Apply by: Dec 1, 2026
Posted: Jun 22, 2026

Original job description

Onyx-Fire Protection Services Inc. is the fastest growing full-service fire protection company.

At this time, we are seeking a permanent, full-time Key Accounts Administrator.

Responsibilities:

Collaborate and co-ordinate with the various departments within Onyx-Fire (Estimating, Operations & Service) is required to ensure detailed and accurate support for our clients.
Ensuring customer satisfaction during daily customer interactions with a strong attention to detail and a focus on fast turnaround and delivery for our clients.
Processing jobs
Creating quotations
Managing document flow

Required Skills and Qualifications:

High school diploma or equivalent
Excellent communication skills both verbal and written
Intermediate to advanced knowledge of Microsoft Excel, Word
Excellent typing and data entry skills
Ability to deal effectively and courteously with all staff, customers and general public
A proven team player with the ability to succeed in a fast-paced, rapidly changing environment
Strong understanding and commitment to the requirements of confidentiality
Exceptional organizational skills, attention to detail and the ability to multi-task
Able to work independently with minimum supervision
A positive, can-do attitude and customer focused approach that will enable you to deal with challenging situations with integrity, empathy and sincerity

What We Offer:

Top benefits.
Unlimited opportunity for advancement.

We are actively recruiting for this open role and will initiate onboarding as soon as a candidate is chosen.

Join Us: Headquartered in Mississauga, with deep operations throughout Canada, Onyx-Fire is the quality choice for local and national clients alike. We deliver preventative maintenance and project services to protect our client’s people and their properties.

Onyx Fire Protection Services is an equal opportunity employer committed to fair and respectful treatment of all individuals. We value diversity as a strength and strive to create an inclusive workplace.

In accordance with provincial legislation and our Accommodation Policy, we welcome accommodation requests throughout the hiring process.

Our high-performance culture provides an environment for people to grow and develop in their careers, take on more responsibility, and be part of a team that shares the same goals.

Apply About employer

More about this job

Responsibilities

The Key Accounts Administrator will collaborate with various departments to ensure detailed and accurate support for clients. Responsibilities include processing jobs, creating quotations, and managing document flow.

Requirements

Candidates must have a high school diploma and excellent communication skills. Proficiency in Microsoft Excel and Word, along with strong organizational skills and the ability to work independently, are also required.

Skills

Communication Skills
Microsoft Excel
Microsoft Word
Typing Skills
Data Entry Skills
Team Player
Organizational Skills
Attention to Detail
Multi-tasking
Independent Work
Customer Focused
Problem Solving
Confidentiality
Fast-paced Environment
Empathy
Integrity

Visa sponsorship

Not detected in the job text

Keywords

Fire Protection
Office Administration
Customer Satisfaction
Estimating
Operations
Service
Quotations
Document Flow
Data Entry
Confidentiality
Organizational Skills
Fast-paced Environment
Team Player
Communication Skills
Microsoft Excel
Microsoft Word

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