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Confirmed on the employer's own hiring board on Nov 9, 2026. First seen by Alion on Nov 9, 2026. Darling Ingredients scores A on the Alion truth index.

Overview
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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 Manufacturing Engineer is responsible for developing, implementing, and continuously improving manufacturing processes that support fabrication, welding, machining, assembly, and related production operations. This position serves as a technical resource for production teams, driving improvements in safety, quality, productivity, and cost while ensuring products are manufactured efficiently and meet customer requirements.

The Manufacturing Engineer works closely with Production, Quality, Supply Chain, Maintenance, and Engineering teams to support existing products, introduce new products, and optimize manufacturing operations through process improvement and lean manufacturing initiatives.

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.

  • Develop, implement, and maintain manufacturing processes for fabrication and assembly operations.

  • Analyze production workflows and identify opportunities to improve efficiency, quality, throughput, and cost.

  • Design and document standard work instructions, process flows, and manufacturing procedures.

  • Lead continuous improvement initiatives utilizing Lean Manufacturing, Six Sigma, and other problem-solving methodologies.

  • Conduct time studies and workflow analyses to establish labor standards and improve productivity.

  • Recommend and implement process changes to reduce waste and improve operational performance.

  • Provide day-to-day technical support to fabrication and assembly operations.

  • Troubleshoot manufacturing issues related to equipment, materials, tooling, processes, and product quality.

  • Collaborate with supervisors and operators to resolve production challenges and minimize downtime.

  • Support production scheduling and capacity planning through process optimization and resource analysis.

  • Design, specify, and implement tooling and fixtures to improve safety, ergonomics, quality, and productivity.

  • Evaluate and recommend capital equipment purchases and automation opportunities.

  • Support installation, qualification, and commissioning of new equipment and manufacturing technologies.

  • Work with Maintenance to improve equipment reliability and overall equipment effectiveness (OEE).

  • Support product launches by developing manufacturing processes, routings, and work instructions.

  • Review engineering drawings and specifications to ensure manufacturability and efficient production.

  • Participate in design reviews and provide feedback regarding fabrication, welding, machining, assembly, and cost considerations.

  • Coordinate pilot runs and validation activities for new products and process changes.

  • Support quality initiatives through root cause analysis and corrective action activities.

  • Assist with the implementation and maintenance of quality management system requirements.

  • Develop and maintain process control methods and error-proofing solutions.

  • Ensure manufacturing processes comply with safety, environmental, and company standards.

  • Maintain engineering documentation including bills of materials (BOMs), routings, work instructions, process specifications, and engineering change documentation.

  • Other duties as assigned.

Minimum Qualifications

  • Minimum of 10 years of manufacturing experience in a fabrication, welding, machining, or assembly environment.

  • Experience implementing process improvements and lean manufacturing initiatives.

  • Ability to read and interpret engineering drawings, blueprints, and technical specifications.

  • Proficient with Autocad, Pronest and Solidworks.

Preferred Qualifications

  • High school diploma, engineering degree preferred

  • Prior mechanical engineering experience preferred

  • Strong analytical, problem-solving, and project management skills.

  • Excellent communication and interpersonal skills.

Working Conditions and Physical Demands

  • Constantly exposed to high noise levels, strong odors, varying temperatures, and biohazardous conditions.

  • Requires prolonged sitting and movement throughout office/work locations, as well as occasional use of computers and office equipment.

  • Must frequently stoop, kneel, crouch, crawl, and climb or balance.

  • Must be able to communicate effectively and identify potential workplace hazards.

  • Requires the ability to frequently lift and/or move up to 50 lbs.

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