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Who We Are

Calero-MDSL brings a unique mix of software and services to each client engagement that enable key functional areas to be managed across spend categories.

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A Software Provider Focused on
Client Outcomes

Technology expense management made easy with Calero-MDSL.

We challenge convention and exceed expectations by delivering superior solutions with integrity and personal service that is lacking from our competition. Our solutions are designed to provide clarity, control, compliance and cost savings across your global technology estates. Whether you're considering a relationship with us as a customer, a partner, or a member of our team, we invite you to get to know us and our passion for this industry.

The World's Best Brands Choose Calero-MDSL

of the Top 6
Global Credit Card Companies

of the Top 5
Global Software Firms

of the Top 10
US Banks

of the Top 5
US Automotives

of the Top 15
US Universities

of the Top 5
Beverage Companies

Our Values

Customer Focused

Customer
Focus

Be reliable, responsive and easy to do business with.

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We Are
One Team

We will go further and faster together.

Collaborative and Innovative

Collaborate and Innovate

Via our people, our platform and our processes.

Initiative and Accountability

Initiative and Accountability

To ourselves, our clients, our company and our community.

Meet Our Industry Innovators

Our leadership team is focused on executing our vision to innovate and automate to simplify recurring expense management. We bring a mix of industry tenure alongside technology and process expertise to become an extension of your team.

Executive Leadership Team

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Scott Gilbert

Chief Executive Officer and Board Member

As CEO and member of the board, Scott is responsible for leading the Calero-MDSL organization into its next era of growth and innovation. A seasoned executive with over twenty years of experience in executive positions at telecom organizations, Scott brings a passion for how operations, sales, and technology can work together to deliver a truly exceptional customer experience. Scott most recently served as Chief Operating Officer of Calero Software prior to the merger with MDSL. Prior to joining Calero-MDSL, Scott led the technology and operations organizations as Executive Vice President and Chief Information Officer at FirstLight Fiber, a portfolio investment of Riverside Partners and Oak Hill Capital.

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Andrew Taylor

President and
Chief Revenue Officer

As President and CRO, Andrew is responsible for delivering an operative end-to-end customer and buying experience as well as providing strategic leadership within the company’s executive and senior teams. With nearly two decades of customer-facing experience in the telecom and managed mobility markets, Andrew aligns the marketing, sales and customer success teams around a go-to-market strategy that streamlines the customer journey. Prior to Calero-MDSL, Andrew was the VP, Sales at DMI where he helped them to achieve Leader status in the Gartner Magic Quadrant.

Brian Brady

Brian Brady

Chief Financial Officer

Brian joined Calero-MDSL in 2020 and oversees the global Finance function, including accounting, forecasting, legal and compliance.

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Simon Mendoza

Chief Technology Officer

Simon joined MDSL in 2003 as part of the Development Team after graduating from the University of Cambridge with an MA in Computer Science. He drove the development of a number of key technologies, including MDSL’s e-billing handler architecture, which led to the rapid growth of MDSL’s TEM offering. He now has responsibility for aligning the company’s IT policy with its overall business direction.

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Patrick Mulvehill

EVP, Operations

Patrick oversees Calero-MDSL’s ongoing customer operations, which includes ensuring best-in-class service to its growing customer base. With over 20 years of operations and technology leadership, Patrick most recently served as Chief Technology Officer at Excellus Blue Cross Blue Shield where he was responsible for strategic oversight and execution of the enterprise’s technology and investment strategies.

David Bliss

David Bliss

Chief Product Officer

David is responsible for Calero-MDSL's strategic product vision, development roadmap and go-to-market activities. David brings a wealth of experience in leading product management teams and taking a customer focused approach to strategic planning.

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Kris Sleeper

VP, HR and Development

Kris is responsible for attracting and developing talent across the nine worldwide office locations and building a strong company culture through advanced learning and engagement initiatives.

Featured Leadership

Ashley Kelm, Vice President/General Manager 

Ashley is responsible for spearheading the Pioneer Business Unit within the operations organization. She and her team are responsible for the seamless transition from the implementation phase, in-lifecycle management, and technical services configuration for our clients. As the VP/GM of the Pioneer Business Unit, she has oversight of all operational lifecycles. The Business Unit structure allows for full management control for our operational leadership and gives Ashley the ability to ensure we provide the best service experience possible for all our clients’ services.

Ashley joined Calero-MDSL in early 2020 and since then has utilized her Six Sigma Black-Belt (University of San Diego) and 17 years of experience within operations to manage continual improvement opportunities. Prior to joining the Calero-MDSL Team, Ashley oversaw the Global Service Delivery department at AOTMP where her teams consulted both the enterprise and vendor environments on best practice procedures. Additionally, she was a divisional head within the Business Process Outsourcing (BPO) space, assisting organizations properly structure outsourcing strategies that helped them meet their internal corporate needs and maintained best in class service for their customers.

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Featured Leadership

Shelly Widlansky, Director of Service Operations

Shelly has been highlighted by the executive team as our quarterly featured employee. According to her VP, Shelly’s accomplishments are the result of hard work, dedication, and always putting her clients’ needs first. Shelly has over 15 years of experience in Contact Center Management and spent 12 years at Sutherland Global Services in various leadership roles. Most recently she served as the Chief Operating Officer of the Louis S. Wolk Jewish Community Center in Rochester, NY. Shelly’s versatile experience has allowed her to have a unique 360 view of the expense management industry. She has a proven track record of quick deficiency identification and the ability to implement sustainable process improvements. Shelly graduated from Tel Hai collage in Israel with a degree in visual art and art history.

Thank you Shelly for all you do every day at Calero-MDSL!

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Interested in working at Calero-MDSL?

We have job openings all over the world.

Join Our Team