Senior Manufacturing Test Engineer Jobs in Arkansas

Products and solutions with purpose.

We started in a garage with one invention, Martcart™, the world’s first electric shopping cart, born from our founder Bill Sage’s desire to help his grandmother shop independently. From that start, Kiefer Sage has grown into a company that designs solutions and products with purpose, rooted in empathy, guided by innovation, and built to solve real problems.

At Kiefer Sage, we build amazing talent who build amazing businesses that make a difference in overlooked and underserved markets.

Our values define our culture, guide our decisions, and shape the way we work.

• Love: We lead with empathy, respect, and care for others.
• Grit: We persevere with determination and resilience.
• Humility: We remain grounded, open-minded, and eager to learn.
• Own It: We take accountability and deliver with integrity.
• Make It Better: We pursue continuous improvement and innovation.

We invest in our people by supporting their well-being, growth, and success.

• Medical, Dental, and Vision Insurance
• Life Insurance
• Short Term and Long-Term Disability
• Free Virtual Urgent, Mental Health Care, and Primary Health Care
• 401(k) Retirement Plan
• Tuition Reimbursement

Reports To: V.P. of Engineering

FLSA Status: Exempt

Location: Rogers, AR (On-site)

Date: 7/24/2026

The Sr. Manufacturing Engineer is responsible for supporting and improving production assembly line operations, tooling, and manufacturing processes across the organization's business units (BUs). This role designs tooling and fixturing, drives cost-down initiatives, optimizes assembly line performance, and supports vendor sourcing and quality efforts. The Sr. Manufacturing Engineer collaborates cross-functionally with production, quality, and engineering teams to deliver safe, efficient, reliable, and cost-effective manufacturing solutions. Strong analytical skills, working knowledge of manufacturing engineering principles, and proven experience in production support and process improvement are essential for success in this position.

• Support production assembly line improvements and troubleshooting across BUs
• Optimize assembly line processes for throughput, efficiency, and ergonomics
• Design tooling and fixturing to support assembly and manufacturing processes
• Drive and support cost-down activities across manufacturing operations
• Evaluate and approve alternate vendor sources for components and materials
• Collaborate with Quality on vendor quality, incoming inspection, assembly/manufacturing quality, and out-going quality
• Responsible for providing engineering support for the design, development, production, and quality inspections of new and current products
• Ensure manufacturing documentation is well documented and up to date within PDM
• Ensure engineering procedures and standards are followed
• Drive project success through on-time delivery and efficient collaboration with cross-functional teams
• Identify opportunities for procedural enhancements and implement technical tools to streamline processes and drive operational efficiency
• Operates independently with limited guidance from managers and/or senior engineers
• Successfully partners with teammates, suppliers, and customers domestically and globally as appropriate
• Uses data to support and communicate technical decisions
• Uses computer-assisted design (CAD) software (i.e., SolidWorks) to create tooling and fixtures
• Produces manufacturing/tooling specifications and chooses raw materials and components for production
• Drives cost analysis and optimization efforts to create accurate BOM and ensure that targets are met
• Provides technical guidance and support to BU Owners and Production Managers
• Excellent problem-solver
• Excellent attention to detail
• Excellent communication skills (written and verbal)
• Excellent technical skills
• Good interpersonal skills
• Good time manager
• Good organizational skills

This position has no supervisory responsibility but could in the future.

This role routinely uses standard office and shop equipment such as computers, phones, copiers, and filing cabinets, and requires regular time spent on the production floor.

This role combines office work with time spent on the production floor; lifting, bending, stooping, and standing is necessary. Mental alertness and long periods of concentration are required.

This is a full-time position. Days and hours of work are Monday through Friday, 8:00 a.m. to 5 p.m. Travel, evening, and weekend work may be required as job duties demand.

• Bachelor's degree in Mechanical Engineering, Industrial Engineering, or related field
• 7+ years of experience in manufacturing engineering
• Experience supporting production assembly lines, including line improvements, troubleshooting, and optimization
• Experience designing tooling and fixturing for assembly and manufacturing processes
• Experience driving cost-down activities and cost analysis efforts
• Experience evaluating and approving alternate vendor sources
• Experience collaborating with Quality on vendor quality, incoming inspection, assembly/manufacturing quality, and out-going quality
• Experience with industry-specific systems (e.g., motorized carts, spray systems, etc.)
• Background in mechanical/manufacturing test standards
• Proficient with mechanical design and CAD software (e.g., SolidWorks)
• Knowledge of electro-mechanical mobility systems, spray systems, and mechanical components and assemblies for vehicles
• Knowledge of material manufacturing processes such as laser cut sheet metal, sheet metal bending, metal tube bending/cutting, plastic bending/machining, metal stamping, CNC, PEM inserting, welding, powder coating, and thermoforming to name a few
• Knowledge of GD&T and drawing best practices
• Knowledge of 8D and root cause analysis
• Experience in supporting production including tooling design, improving processes, incoming component test requirements, on the line test requirements, and out-going product test requirements
• Strong understanding of safety standards and risk assessment for manufacturing systems

• Bachelor's degree in Manufacturing Engineering, Mechanical Engineering, or related field; Master's degree a plus
• 10+ years of experience in manufacturing engineering
• Proven track record supporting and improving production assembly lines across multiple business units
• Strong experience designing tooling and fixturing for assembly and manufacturing processes
• Proven track record driving cost-down activities and cost analysis efforts
• Strong experience evaluating and approving alternate vendor sources
• Strong experience collaborating with Quality on vendor quality, incoming inspection, assembly/manufacturing quality, and out-going quality
• Strong experience with industry-specific systems (e.g., motorized carts, spray systems, etc.)
• Strong background in mechanical/manufacturing test standards
• Strong knowledge of electro-mechanical mobility systems, spray systems, and mechanical components and assemblies for vehicles
• Strong knowledge of material manufacturing processes such as laser cut sheet metal, sheet metal bending, metal tube bending/cutting, plastic bending/machining, metal stamping, CNC, PEM inserting, welding, powder coating, and thermoforming to name a few
• Strong experience with GD&T and drawing best practices
• Strong experience in leading FMEAs, 8D, and root cause analysis
• Strong understanding of safety standards and risk assessment for manufacturing systems

Kiefer Sage provides equal employment opportunity to all individuals regardless of their race, color, creed, religion, gender, age, sexual orientation, national origin, disability, veteran status, or any other characteristic protected by state, federal, or local law. Further, the company takes affirmative action to ensure that applicants are employed, and employees are treated during employment without regard to any of these characteristics. Discrimination of any type will not be tolerated.

This job description is a general description of essential job functions. It is not intended as an employment contract, nor is it intended to describe all duties someone in this position may perform. All employees of APC are expected to perform tasks as assigned by APC supervisory/management personnel, regardless of job title or routine job duties.