Manufacturing Engineer II

Primary Arms; Houston (TX); On-site; USD 70,000 - 90,000; Full time

Job summary

Primary Arms, a leading company in optics manufacturing based in Houston, Texas, seeks a Manufacturing Engineer I. The role's focus is on improving production efficiency for high-quality optical reflex sights through effective engineering practices. Candidates should have a bachelor's degree in a relevant field and experience in optimizing assembly workflows. Collaboration across teams and a keen attention to detail are essential for success in this position.

Qualifications

• Minimum 3 years of industry-relevant experience in high-volume production.
• Proven record of optimizing assembly workflows.
• Strong understanding of manufacturing principles.

Responsibilities

• Assist in high-volume production and assembly of precision assemblies.
• Develop and implement complex assembly equipment.
• Improve workflows and documentation for production processes.

Skills

Manufacturing Principles

Precision Optical Assemblies

Assembly Workflow Optimization

CAD Tools

Quality Control

Communication Skills

Education

Bachelor’s degree in Manufacturing Engineering

Bachelor’s degree in Mechanical Engineering

Tools

SolidWorks

Job description

Company Overview
Headquartered in Houston, Texas, Primary Arms is a vertically integrated company built around three core business units: optics manufacturing, e-commerce and wholesale distribution, and direct government sales. Through our multinational optics division, we design, engineer, and manufacture Primary Arms Optics using a combination of global OEM partnerships and U.S.-based production. Our e-commerce and wholesale operations serve consumers and dealers nationwide with a wide selection of leading industry brands, while our dedicated government sales team supports law enforcement and other agencies through both inside and field sales. Across all divisions, we are driven by a commitment to innovation, customer service, and operational excellence.

Job Overview
The Manufacturing Engineer I will assist the Production Engineering Manager in supporting the high-volume production and assembly of small, intricate, precision electro-optic and electro-mechanical assemblies. Success in this role involves designing and refining processes, tools, and workflows to improve production efficiency and quality. The role fits into the broader company mission by ensuring the consistent manufacturing of high-quality optical reflex sights and related products.

Responsibilities and Duties

• Assist the Production Engineering Manager with all aspects of engineering for high-volume production and assembly of small precision assemblies, including optical and mechanical components.
• Develop and implement complex assembly equipment, working closely with the Production Engineering Manager.
• Design fixtures, assembly aids, and tooling for small precision components using CAD tools like SolidWorks.
• Observe and analyze current assembly processes to identify bottlenecks and areas for improvement, including optics alignment, soldering, and adhesive application workflows.
• Develop and refine workflows and Standard Operating Procedures (SOPs) to improve production consistency and quality.
• Assist with minor process improvements and troubleshooting to gain hands-on experience with manufacturing techniques.
• Maintain accurate documentation of processes, tooling designs, and quality checks to ensure traceability and compliance.
• Identify quality issues in assembly processes and propose effective solutions.
• Collaborate with R&D to establish and implement Design for Manufacturing and Assembly (DFMA) principles for new and existing products.
• Work collaboratively with cross-functional teams, including R&D, supply chain, and quality assurance, to enhance processes and ensure product quality.

Skills and Qualifications

• Bachelor’s degree in Manufacturing Engineering, Mechanical Engineering, or a related field.
• Minimum 3 years of industry-relevant experience (internship/co-op included) in a high-volume production and assembly environment.
• Proven record of optimizing assembly workflow through fixturing, automation and other modern technologies.
• Strong understanding of manufacturing principles, particularly for precision optical and mechanical assemblies.
• Strong experience with adhesives, precision soldering, and modern assembly techniques (e.g., automated gluing equipment and vision machines).
• Proficiency with CAD tools (e.g., SolidWorks) for designing fixtures, assembly aids, and tooling.
• Strong attention to detail and ability to identify quality issues in assembly processes.
• Excellent communication and collaboration skills to work effectively with cross-functional teams.
• Ability to document processes and maintain compliance with production standards.
• Experience or interest in firearms and shooting is a plus.

Please note that this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.