Women Who Build

Stronger Construction Strategy

From financial controls to technology adoption, Sierra De Sousa helps interior systems contractors plan, measure and execute with confidence.

By John Wyatt, Editor, Tanja Kern, Strategic Content Editor

Sierra De Sousa
Vice President of Finance, Maxan Interior Systems

Sierra De Sousa oversees financial strategy, controls, IT and risk management across multiple branches. Her entry into the wall and ceiling industry came through the financial and operational aspects of construction, attracted by its complexity, fast pace and real-world impact.

Early on, Sierra recognized that true credibility comes from understanding project execution on the ground, not just managing numbers. She deliberately immersed herself in operations, learning workflows, site challenges and how upstream decisions affect field outcomes. This integrated perspective defines her leadership, positioning her at the crossroads of estimating, project management, and operations to deliver better risk visibility and predictable results.

Her key achievements include redesigning reporting systems for earlier project performance insights, implementing disciplined work-in-progress methodologies, strengthening controls and modernizing IT infrastructure for scalability. She has bridged gaps between finance, estimating, and project teams, while contributing to strategic planning, M&A and growth initiatives.

Sierra launched “Women at Maxan,” focusing on mentorship, visibility, and advancement pathways for women in office and field roles. She also engages in external board governance, applying her expertise to sustainable operations.

Looking ahead, Sierra envisions a technology-driven, precision-focused industry where top performers excel through accurate estimating, reality capture, and layout tools that minimize rework. She stresses earlier information flow, coordinated leadership, and accountability to widen the gap between average and elite companies. She appreciates the industry’s tangible accountability (work either succeeds or fails visibly) and advocates shifting from “build-then-fix” to “measure-then-build” for efficiency and confidence on-site.

“The most impressive thing I’ve seen from Sierra is how quickly she can take complex, cross-functional issues and make them clear enough to drive decisions and action,” says Dane Flynn, president and general manager of Maxan Interior Systems. “She can step into situations with incomplete information and competing priorities, identify what matters, and move teams forward. She doesn’t operate at arm’s length. Whether it’s financial risk, operational bottlenecks, technology adoption, or leadership gaps, she gets close to the work, asks the right questions, and builds structure that holds up under pressure.”

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John Wyatt is editor of Walls & Ceilings magazine, bringing more than two decades of experience with BNP Media. He joined the company in 2000 as an associate editor, contributing to both Walls & Ceilings and Roofing Contractor before assuming the role of editor in 2008. In addition to his work with the brand, Wyatt collaborates across BNP’s architecture, engineering and construction (A/E/C) portfolio, supporting related publications and initiatives. He can be reached at 248-205-6659 or wyattj@bnpmedia.com.

Tanja Kern covers economic trends and the intersection of architecture, design, and construction for Walls & Ceilings, with an emphasis on the forces reshaping the industry. She develops and amplifies content that connects construction professionals with the intelligence they need to compete and grow.

With more than 20 years of experience, Tanja has written for national business, consumer and trade publications. She holds a Master of Science in magazine publishing from Northwestern University's Medill School of Journalism. She can be reached at kernt@bnpmedia.com.