Plant Process Engineer - Granulation Operations

A leader in the Biostimulant industry, Horizon Ag Products began manufacturing soluble humus products for Agriculture in 1983. Based in Lakewood, CO, we are a recognized leader in our industry. With over one hundred employees, we operate seven manufacturing plants in seven states and several surface mines. We strongly believe our products are of significant benefit to mankind and we make them better than anyone else in the world.

We support a lifestyle of balanced priorities where everyone works hard and enjoys themselves and each other. We look out for one another and cherish the caring attitude and respect we have for one another in the workplace and beyond. Above all else, we conduct ourselves with integrity and follow the guiding principles outlined on our website,

The Plant Process Engineer in Granulation Operations provides technical leadership and operational execution to our Union City, OK facility, ensuring efficient, safe, and reliable production of our products. This role blends process and plant design and development, engineering, production and process technology, and manufacturing project management to implement new processes, optimize plant performance, drive continuous improvement, and support capacity growth initiatives.

• Lead design and development of granulation unit operations and process systems including material handling, conveying, drying, separation, pumping and piping, and packaging systems ensuring compliance with applicable codes, safety standards, and RAGAGEP’s/BEP’s and federal, state, and local codes.
• Develop PFDs, P&IDs, plant layouts, mass and energy balances, utility requirements, equipment and instrumentation specifications, process control and automation strategies, and installation plans.
• Collaborate with leadership, operations, engineering, and vendors to align project scope and costs with business goals.
• Coordinate with cross functional teams (Operations, Maintenance, Quality, Engineering, and R&D) to ensure that production processes are evaluated and implemented in an efficient, cost-effective, and safe manner.
• Support new product development along with R&D and quality, develop plant pilot plans, implement full scale plant processes, and support new plant processes and projects.

• Develop Project Management plans and charts (Gantt) with milestones to track progress for resources, time frames and costs for process and project installation, commissioning, and start-up phases and communicate to leadership any setbacks.
• Coordinate construction, installation, commissioning, and startup activities to ensure readiness for production operations.
• Communicate and coordinate with internal and external stakeholders (leadership, quality, R&D, engineering, vendors/suppliers, equipment providers, contractors, etc.) to deliver on time, within scope, and on budget.
• Establish startup protocols, validate process performance, and support smooth transition into steady‑state operations.

• Plan, coordinate, and oversee manufacturing activities to ensure production goals, quality and ISO standards, and orders meet target dates.
• Understand plant capacity constraints and identifying projects to streamline and remove bottlenecks to increase productivity, % uptime, rate, and yield to ensure plant operations meet OEE and KPI targets through continuous improvement and DOE activities.
• Ensure plant budgets are adhered to and identify opportunities to continuously improve and reduce annual operating costs through expense and capital‑based projects.
• Providing day‑to‑day process engineering and technical support to plant operations including troubleshooting and providing technical direction to operators and maintenance technicians as well as others, as necessary.
• Develop and standardize SOP’s, control plans, and documentation for plant processes and ensure all personnel are trained effectively.

• Ensure all incidents are reported, investigated, and reported in a timely manner to leadership.
• Utilize systematic and structured methodology such…