Aggregate Operations Manager

About Us:

At Bolton Inc., we've built community, resilience, and long-term value on Big Island since 1987. With deep community roots, we’ve grown into one of the Island's most trusted general contractors, known for delivering high-quality civil, commercial and residential projects with integrity, precision, and purpose.

Our work is grounded in a culture of accountability and craftsmanship. We operate with a strong in-house foundation of various skilled tradesmen to ensure efficiency from concept to completion. From sitework & utilities to pools & commercial vertical construction, we take a systems-based approach to solving problems and creating meaningful outcomes.

As a locally owned and community-centered company, we are committed to safety, sustainability, and developing opportunities for the next generation of skilled workers. We believe in building with intention, honoring the land, empowering our team, and shaping infrastructure that serves Hawai‘i for decades to come.

About the Role:

We’re seeking a seasoned Aggregate Operations Manager to lead our team, optimize crushing & recycling processes, and ensure safe, efficient production of a wide range of aggregates and byproducts. This is a hands-on leadership role ideal for someone with deep experience in impactor, jaw, cone crusher (and green waste recycling) operations who is ready to take full ownership of plant performance, personnel leadership, and production quality. The right candidate will be mechanically savvy, results-driven, and comfortable working alongside crew members in the field—operating crushing equipment, troubleshooting issues, and actively participating in daily production tasks.

Key Responsibilities:

• Oversee daily operations of crushing plant (impact, jaw, cone crushers, horizontal grinders, Trommel screeners) to meet production goals
• Supervise, train, and motivate a team of equipment operators, mechanics, and laborers
• Schedule and monitor production of various aggregate types to meet customer and project specifications
• Monitor and improve plant throughput, uptime, and maintenance practices
• Troubleshoot mechanical and operational issues to minimize downtime
• Ensure proper maintenance of crushing equipment, conveyors, screens, and supporting infrastructure
• Maintain a high standard of safety compliance and environmental responsibility
• Collaborate with ownership and other operational leaders to report on KPIs, costs, and production targets
• Assist in long-term planning for equipment upgrades, staffing, and growth

Requirements:

• 5+ years of experience managing or supervising crushing operations
• Expertise in impactor, jaw, and cone crushers and their operating systems
• Strong mechanical aptitude with the ability to diagnose and resolve equipment issues
• Proven ability to lead and develop a team in a production setting
• Experience in producing a wide range of aggregate sizes and types
• Familiarity with preventative maintenance schedules and plant optimization
• Ability to work long hours in outdoor, rugged environments
• Strong communication, organization, and reporting skills
• Valid driver’s license; CDL is a major plus

Preferred Qualifications:

• Experience with crushing operations in remote or rural environments
• Knowledge of MSHA or OSHA compliance (certified preferred)
• Ability to manage budgets and production costs
• Proficient with production tracking software or digital reporting tools
• Familiarity with mobile crushing setups and the ability to manage operations at temporary job sites, including equipment mobilization and site-specific setup and breakdown.

What We Offer

• Production bonuses
• Competitive hourly pay (DOE) with overtime eligibility
• Health, dental, and vision benefits (after eligibility period)
• Paid time off, holidays, and wellness days
• Company vehicle, tools, and equipment provided
• Opportunities for growth into lead tech or division management
• A strong team culture that values accountability, respect, and craftsmanship

Job Type: Full-time

Pay: $40.00 - $60.00 per hour

Benefits:

• 401(k)
• 401(k) matching
• Dental insurance
• Health insurance
• Paid time off
• Relocation assistance
• Vision insurance

Work Location: In person