403-650-6050 info@debbiemastel.com

About Us


Who We Are

DMA is a boutique, WBE Canada certified woman-owned HR Consulting firm. We have unique and effective solutions to recruitment hurdles. We are experienced in working in a variety of industries and have a proven track record of filling difficult to fill and critical roles using our coveted mapping and sourcing process.

Debbie Mastel

Critical Talent Specialist

Debbie Mastel is a Career Coach and Talent Acquisition Professional with experience working in house with some of Calgary’s best oil companies. She has her Bachelor of Arts degree from Augustana University College in Camrose (now University of Alberta), is a Registered Professional Recruiter and was one of less than 500 LinkedIn Certified Professional Recruiters worldwide.

She has helped hundreds of people from New Grads to the Vice President level with their career transition by applying her practical, strategic focused approach to job search. She is a Certified Laughter Yoga Leader, and enjoys spending time with her boys, Jake a Golden Retriever and Batman the bulldog. She was a member of Toastmasters and won numerous awards including first place in an Area Humorous Speech Contest.

Debbie Mastel was ranked the #1 Recruiter in Calgary and #4 in Canada.

Brenda Cullum-Shergold, RPR

Senior Recruitment Specialist

Brenda is a seasoned recruitment professional with a diverse skillset. In her role as Senior Recruitment Specialist, her focus is on supporting the needs of our clients in the corporate space to find “that perfect fit”. Brenda builds trusting relationships with candidates and clients by sharing her knowledge on the current labour market, as well as advice and guidance on recruitment, attraction and retention strategies within their organization.

Brenda Cullum-Shergold was ranked the #1 Recruiter in Calgary and Canada.

Heather Park

Talent Acquisition Professional

Heather Park has a Master of Business Administration (MBA) from Bond University (Queensland, Australia), and a BA(Honours) from Queen’s University. She has had ten years of experience in HR, focusing on recruitment within the oil and gas industry. Heather is also a professional resume writer that designs resumes to significantly increase your chances of getting the right job, working with people from all levels and industries

Mark Jensen

Talent Acquisition Professional

Mark is an independent recruiter who places experienced technical professionals into compelling roles. He firmly believes that every candidate has a story that will land them the position. It is his job to find it and share it with clients. Mark has worked with a variety of recruitment agencies. He has placed candidates from entry level through the C-Suite.

Mike Derry

Senior Talent Consultant (CPHR, SHRM-SCP)

Mike is an HR professional with over 20 years of experience specializing in Talent acquisition, management, organizational effectiveness, retention, and performance. He has built custom talent programs and developed in-house recruitment and talent management programs. He has led and developed teams in unionized, high-volume, and professional environments. He is a true human resources business partner with expertise in recruitment.

Mike is a proven head-hunter, talent sourcer and master networker. He continues to uncover passive and active candidates across multiple industries including Engineering, Accounting, Finance, Human Resources, Supply Chain, Power Engineering, Operations & Maintenance, Marketing, Telecommunications, Environment, Regulatory, Health & Safety and others. He is always finding creative and unique ways to advertise and locate the right candidates.

What People Are Saying About DMA

Vacancy Filled:

“Very personable, friendly, really cares about getting the right fit with you as a candidate and the hiring company. Best recruiter I have worked with in Calgary. Quick to arrange interviews for you if she has a role that is fit and responds quickly to emails or messages, very honest in anwering questions. Volunteers her time in helping people in the community with networking and resumes.”

Arti Jairath

Husky Energy

Vacancy Filled:
Business Development

“Debbie is one of the most passionate and connected recruiters I have worked with throughout my career. She genuinely cares about both the company and candidates and will always provide realistic insight into the market, the probability of finding qualified candidates or alternate strategies to deliver to the business.”

Helen Rol

ATCO Energy Solutions

Vacancy Filled:
Placement Coordinator

“I would recommend Debbie in a heartbeat. I’ve known her for years and she has always been my go to for her vast sense of knowledge and her network. Debbie has helped me and my family find jobs and I never hesitate to send new people to her. It will be a very sad day when Debbie is no longer recruiting as she has touched the lives of so many candidates in her career.”

Jennifer Walchuck


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