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Validation Administrator (Invoicing)
Posted on March 13, 2026
- Mississauga, Canada
- 0 - 0 USD (yearly)
- Temporary
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*NOTE – applicants must be prepared to participate in the interview process via phone and/or video conference. *
INTERNAL JOB TITLE
Invoicing Validation Administrator
EMPLOYMENT TYPE: Contract | 12 Months
WORKING HOURS: Mondays to Fridays | 8:00AM - 4:30PM
COMPANY OVERVIEW
For over 20 years, Lakeside Performance Gas Services Ltd. has been proudly serving the natural gas industry across Ontario and Quebec in partnership with top Utilities service providers. The company further excels in providing innovative solutions to its customers and extended group of clients. Headquartered in Mississauga with satellite offices throughout Ontario and Quebec, the company values its dedicated group of personnel who consistently provide customers with the highest level of support.
POSITION SUMMARY
This position is responsible for reviewing, validating, and billing based on internal guidelines to ensure accuracy and transparency.
PRIMARY RESPONSIBILITIES
The primary responsibilities for this position include, but NOT limited to the following –
- Review and validate invoices to ensure accuracy, completeness, and compliance with internal standards.
- Identify, investigate, and escalate inconsistencies to Management.
- Apply internal pricing guidelines accurately and maintain a balance between varying pricing structures.
- Coding of calls and perform necessary corrections in the internal systems based on established processes, procedures, and guidelines.
- Collaborate with various departments to clarify invoice related issues and ensure timely resolution.
- Maintain confidentiality and ensure security of invoicing records.
- Perform any additional administrative or invoice-related duties as assigned.
EDUCATION, EXPERIENCE & SKILLS REQUIREMENT
- High school or equivalent diploma. Asset to have a post-secondary diploma in Business Administration or equivalent.
- 1 – 2 years of experience in an administrative role.
- Exceptional computer skills (MS Office, Intermediate Excel).
- Strong analytical and problem-solving skills, with the ability to work well under pressure.
- Able to multitask, prioritize, and manage time effectively in a fast-paced environment.
- Detail-oriented and highly organized, with a proactive self-starting attitude.
- Strong team player with the ability to work independently when needed.
WORKING AT A LAKESIDE LOCATION
- Flexibility is key; willing to work at a fast pace with attention to detail and accuracy.
- No travel.
INCLUSION AND EQUAL OPPORTUNITY EMPLOYMENT
At Lakeside Gas Services, our belief is that diversity and inclusion are fundamental and integral part of its business innovation and growth.
We are committed to building diverse and inclusive teams within an equitable workplace for our staff to collaborate and bring their true selves to work. We also strive to provide an accessible candidate experience for our prospective staff with various abilities. Please let us know if you need any accommodations during the recruitment process. Lakeside continues to actively address and improve on issues of inequity and systemic bias to support our diverse talent, clients, and communities.
Job Type: Fixed term contract
Contract length: 12 months
Pay: $21.20 per hour
Expected hours: 40 per week
Benefits:
- Casual dress
- Company events
- Dental care
- Extended health care
- Life insurance
- On-site parking
- Paid time off
- Vision care
Application question(s):
- Are you willing to undergo a background check (criminal, professional and academic), in accordance with local law and regulations?
- Are you legally eligible to work in Canada and location specified in the job posting and, if applicable, hold a valid permit that allows you to fulfill the requirements of this role?
- This position is in Mississauga (L5T 2H7) and may be inaccessible by public transit. Do you currently have a valid driver's license AND reliable/independent transportation?
- Are you willing to start at $21.20 per hour with a compensation review after probation?
- Are you a referral and/or related to a current Lakeside worker? If yes, please share the name.
- How would you rate your Microsoft Excel skills?
- The formal job title to be displayed on all employment related documentation will be Invoicing Validation Administrator and cannot be modified. Please confirm your acknowledgement and consent to proceed.
- The working hours for this position are every Mondays to Fridays from 8:00AM - 4:30PM and it is a 12 months contract. Can you commit to these requirements?
Work Location: In person
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