Mission Critical Group CFO Julie Peffer [Composite image; original photo: Mission Critical Group]

Julie Peffer has been appointed chief financial officer of McKinney-based critical power infrastructure company Mission Critical Group, which specializes in the design, manufacturing, delivery, and service of advanced electrical systems.

“Julie’s leadership and financial expertise will be instrumental as we continue scaling MCG’s unified power and energy infrastructure platform,” Mission Critical Group CEO Jeff Drees said in a statement. “Her record in driving operational excellence and global financial performance aligns perfectly with our mission to deliver reliable, high-performance solutions across critical markets.”

At MCG, Peffer will oversee all financial, accounting, and IT, supporting the company’s continued growth as a U.S.-based manufacturer and innovator in mission critical power systems. Peffer brings more than three decades of experience leading financial operations and strategic growth initiatives across global organizations, including Amazon Web Services (AWS), Flowserve, Raytheon, Lennox International, and Textron.

She joins MCG from BigBear.ai (NYSE: BBAI), where she was CFO and guided the company’s financial strategy through rapid expansion in the defense and artificial intelligence sectors. Peffer also serves as a board member of Nine Energy Service (NYSE: NINE), a publicly traded oil and gas services company.

“I’m excited to join Mission Critical Group at such a dynamic time in its growth,” Peffer said in a statement. “MCG’s integrated approach to powering data-driven industries represents a significant opportunity to enhance both operational and financial efficiency for customers.”

MCG said her appointment underscores its continued investment in building a world-class leadership team to support its expanding customer base and manufacturing footprint across the United States.

Mission Critical Group designs, manufactures, delivers, and services innovative solutions to solve its customers’ critical power challenges.

MCG offers packaged power solutions and products, leveraging more than 1,000 employees with more than 200 years of combined mission critical staff leadership experience. Operating across more than 1 million square feet of manufacturing space, MCG said it is ready to meet evolving industry demands effectively. MCG said its companies include JTS, Point Eight Power, and DVM Power + Control.

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