Manufacturing Manager

Oldcastle® APG, a CRH Company, is North America’s leading provider of innovative outdoor living solutions that enable customers to Live Well Outside. The manufacturer’s portfolio of premier building products inspires endless possibilities while providing enduring outdoor spaces where people can connect, reflect and recharge. Award-winning brands include Belgard® hardscape, Echelon® Masonry, Moisture Shield® composite decking, RDI® railing, Catalyst™ Fence Solutions, Sakrete® packaged concrete, Amerimix® mortar, Pebble Technology International® pool finishes, Lawn & Garden mulches and landscape features, and Techniseal® sands and sealant technologies.

The Manufacturing Manager is responsible for leading and integrating all non-production support functions that are essential to the safe, efficient, and high-quality operation of the plant. This role has direct ownership of site-level performance in quality, safety, engineering, processing, mix operations, and tooling. The Manufacturing Manager partners closely with production leadership to drive continuous improvement, ensure regulatory and corporate compliance, and support operational excellence across all manufacturing processes.

• This is an onsite role based in Flint, MI

• Provide strategic and tactical leadership to site-level quality, safety, engineering, processing, mix, and tooling teams
• Ensure alignment with corporate policies, industry standards, and applicable regulatory requirements
• Develop and maintain systems that support product quality, workplace safety, and process capability
• Establish clear performance expectations and accountability across all support functions
• Lead root cause investigations and implement corrective and preventative actions for quality and safety incidents
• Oversee the development and control of mix formulations, process parameters, and tooling readiness to support production needs
• Support the introduction of new products, processes, and technologies, ensuring smooth integration into existing operations
• Collaborate with maintenance teams to ensure equipment and tooling are optimized for performance, reliability, and safety
• Identify and implement processing improvements to reduce waste, improve product quality, and enhance workplace safety
• Lead or support kaizen events, value stream mapping, and other lean manufacturing initiatives
• Monitor key performance indicators and drive data-based decision-making across support functions
• Foster a culture of continuous improvement and operational discipline
• Ensure full compliance with OSHA and other applicable federal, state, and local regulations
• Maintain audit readiness and lead internal and external audits related to quality, safety, and environmental compliance
• Develop and enforce risk mitigation strategies to reduce operational, environmental, and safety risks
• Promote a proactive safety culture through training, engagement, and visible leadership

• Bachelor’s Degree in Engineering, Operations Management, or related field required
• 5+ years of experience in manufacturing or industrial operations, with at least 3 years in a leadership or supervisory role
• Demonstrated experience in managing or collaborating with quality, safety and engineering functions
• Strong knowledge or lean manufacturing principles, Six Sigma tools, and quality management systems
• Familiarity with OSHA and other regulatory frameworks
• Effective leadership, coaching, and team development skills
• Strong analytical and problem-solving abilities
• Excellent communication, organizational, and interpersonal skills
• Proficiency in Microsoft Office and ERP systems (SAP preferred)

• Highly competitive base pay
• Comprehensive medical, dental and disability benefits programs
• Group retirement savings program
• Health and wellness programs
• An inclusive culture that values opportunity for growth, development, and internal promotion

CRH has a long and proud heritage. We are a collection of hundreds of family businesses, regional companies and large enterprises that together form the CRH family. CRH operates in a decentralized, diversified structure that allows you to work…