Salary
≈ $35k – $80k per year (Estimated)
Location
In office (Knoxville)
Visa
H-1B filings in 12 months: 4
Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Oct 12, 2026.
Overview
Company
Impact
Profile match
Darling Ingredients is a publicly traded company headquartered in Irving, Texas, that collects and recycles animal by-products, used cooking oil and bakery residuals into feed ingredients, fertilizers, collagen and gelatin, and renewable fuels. Founded in 1882 as a small Chicago rendering company, it operates more than 260 facilities worldwide under brands such as DAR PRO, Rousselot, Sonac, Rendac and EnviroFlight, and co-owns the Diamond Green Diesel renewable diesel venture. Its job board lists route and semi drivers, production and boiler operators, mechanics and electricians, plant supervisors and maintenance managers, plus accounting and audit staff.
The Process Operator is responsible for the operation of the computer controlled process equipment, cooker, machinery, and evaluation of any process problems in addition to performing product quality testing.
Essential Duties/Responsibilities
Nothing in this job description restricts management's right to assign or reassign duties and responsibilities to this job at any time.
- Oversees rendering process from raw material bin to finished goods storage.
- Maintain steady flow of material to cooker.
- Maintain cooker temperature, rate, and steam at peak operating levels.
- Monitor evaporation rate to maintain rate per hour according to requirements.
- Control flow of material to presses and to finished goods storage.
- Monitor control panel and various gauges to accomplish process.
- Operate pollution control system including air/odor control system and wastewater control.
- Responsible for boiler start up and operation.
- Perform periodic preventative maintenance on all equipment in process.
- Monitor machinery; bring all problems to attention of manager.
- Assures equipment and work area is clean after each shift.
- Maintains safety as top priority in accordance with all company safety rules and regulations.
- As trained, be aware of and responsible for their role in Darling's food safety program.
- All other duties as assigned.
Minimum Qualifications
- Must be at least 18 years of age.
- High School diploma or GED equivalent.
- Manufacturing, industrial, or agricultural experience preferred.
Preferred Qualifications
- Prior experience in a rendering facility or production environment preferred.
- Knowledge of mechanical rendering and or process equipment.
- Good mechanical aptitude and equipment troubleshooting; skilled in general mechanics and safe operation of equipment.
- Ability to deal with minor problems involving equipment or various situations.
- Ability to work nights and/or weekends as needed.
- Works well with others in a team environment.
Working Conditions
- Exposed to unpleasant or disagreeable physical environments such as high noise level, strong odors, and/or exposure to heat and cold - Frequently
- Exposed to bio hazardous conditions - Frequently
- Exposed to toxic or caustic chemicals which mandate attention to safety considerations - Frequently
- Exposed to Electrical hazards; risk of electrical shock - Frequently
- Handles or works with potentially dangerous equipment - Frequently
- Frequently: Sit, stand, walk, use hands, stoop, kneel, crouch, crawl, climb/balance, talk, hear, taste, and smell.
- Occasionally lift up to 50 pounds
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