Are you an experienced engineering professional eager to advance your career with a dedicated, community-focused, award-winning company? Tatham Engineering offers the opportunity to join a supportive team that values mentorship and provides challenging, rewarding work. Put your knowledge and experience to meaningful use in an setting where collaboration and growth are encouraged.

We are seeking to fill a new role of a Senior Contract Administrator, Construction Inspector to work in the Water & Wastewater group out of our Barrie office.

This position is responsible for the contract administration and inspection of vertical infrastructure such as treatment plants and pump stations (water and sewage), water storage reservoirs, yard piping, watermains and sanitary force mains. Contract administration duties include conducting site meetings and preparing meeting minutes, payment certificates, contract change orders, reviewing, negotiating and settling claims for extra work, responding to public enquiries and liaison with municipal and agency staff. Inspection duties include liaison with contractors, preparing field inspection reports, collecting for record construction data and verifying quantities and quality of work.

Key Position Requirements

Graduate of Engineering Technology or Technician program
C.E.T. certification preferred
Minimum of 10 years of prior relevant experience
Demonstrated understanding and knowledge of contract drawings, tender documents and design and construction standards
Field experience working around heavy equipment
Solid communication and interpersonal skills
Enthusiasm to work in a team structure and a willingness to help and collaborate with others




Demonstrated ability to handle multiple projects and work independently under minimal supervision
Valid Driver’s License and reliable transportation

How To Apply

Click the “Apply Now” button below and follow the instructions to create your account. Please include your resume and contact information.

We thank all candidates for applying, however only those selected for an interview will be contacted.

Tatham Engineering does not use artificial intelligence in the hiring process. All applications are reviewed by Human Resources and the appropriate hiring managers.

Why Tatham?

At Tatham, our key values are reflected in everything we do. We aim to be the engineering consulting firm of choice by upholding our core values: Service, Communication, Teamwork, Relationships & Community . Our company has experienced significant growth by putting these values into action.

What We Offer

Competitive compensation, perks, health spending account, RRSP matching and profit sharing
Flexible work arrangements and work-life balance
Paid volunteer opportunities
Vacation starting at 3 weeks minimum for all positions – prorated in the first year
Challenging and rewarding work on notable projects
Career development, training,



mentorship program and career progression opportunities
Reimbursement for annual professional dues
Collaborative and engaging workplace environment
Regular office/team socials and recreational outings, including an activity allowance for approved events
Shareholder opportunities

Company Information

Tatham Engineering is a Canadian employee-owned, consulting engineering firm that specializes in Coastal, Land Development, Municipal, Structural (Buildings and Bridges), Transportation, Water Resources, Water & Wastewater, Electrical and Mechanical engineering, and provides specialized services in Air & Noise, Climate Resilience and Hydrogeology. The firm was founded in Collingwood, Ontario, in 1988 and currently employs over 200 staff with branch offices in Barrie, Bracebridge, Guelph, Orillia and Ottawa.

Tatham is proud to be recognized as one of Southwestern Ontario’s Top Employers of 2026 and Canada’s Top Small & Medium Employers of 2026!

Diversity, Inclusion, and Accommodations

Tatham Engineering is an equal chance employer that values diversity in the workplace and welcomes applications from all qualified candidates. We are committed to ensuring the selection process is inclusive, accessible, and barrier-free. If you require accommodation, please contact Human Resources at [email protected] and the request will be addressed confidentially.

Expected Hiring Range for This Position

$90,000 to $125,000

Compensation will reflect the unique skills and experience each candidate brings to the role. The posted range serves as a general guideline, and final offers may vary.
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📌 Senior Contract Administrator, Construction Inspector - Water/Wastewater (Ontario)
🏢 Tatham Engineering
📍 Ontario