Product Development Engineer II in Houston

Job DescriptionJob Description

Shape the Future of Precision Optics

We’re looking for a hands-on mechanical engineer who is passionate about firearms and optics and ready to take real ownership of product development. As an Engineer I on the Primary Arms Optics team, you won’t just support designs—you’ll help turn ideas into high-performance products that shooters rely on every day.

You’ll work side-by-side with experienced engineers and manufacturing partners to research, design, prototype, and refine new optics and related products. This is a role for someone who thrives on solving complex problems, owns projects from concept through production, and gets excited about improving both product performance and manufacturing processes.

What You’ll Do

• Design and develop new products in SolidWorks, collaborating closely with senior engineers and cross-functional teams to deliver innovative, reliable optics solutions.
• Improve existing products through thoughtful redesign, performance evaluation, and manufacturing optimization.
• Create precise engineering drawings that meet ANSI standards and apply GD&T and tolerance stack analysis to ensure fit, function, and manufacturability.
• Design fixturing and tooling that make assembly and inspection faster, more accurate, and more consistent.
• Own documentation and processes for engineering, quality control, and assembly—building efficient workflows that scale.
• Lead root-cause analysis on product issues and drive clear, practical solutions with vendors and internal teams.
• Build and validate prototypes, working directly with prototype shops to keep development moving quickly
• Collaborate in 3D modeling to ensure seamless integration of mechanical and optical components.
• Manage inspection equipment, calibration, and organization of tools, samples, and prototypes so the team can move fast without friction.
• Provide technical support across manufacturing, purchasing, marketing, and suppliers—becoming a trusted resource for the broader organization.
• Continuously identify opportunities to improve current products and processes.

You’ll have the chance to see your work go from screen to range, and you’ll play a meaningful role in products that real shooters use.

What You’ll Bring

Required

• Bachelor’s degree in Mechanical Engineering (or equivalent experience)
• 3–5 years of experience in the firearms and/or optics industry
• Strong proficiency in SolidWorks for modeling and drafting
• Solid working knowledge of GD&T and tolerance stack analysis
• Understanding of manufacturing processes (milling, turning, molding, casting, etc.) and material science/coatings
• Experience with dimensional and optical inspection equipment
• Demonstrated ability to take projects from concept through completion with minimal supervision

/ Strongly Valued

• Genuine passion for firearms and optics
• Proven track record of solving complex design and manufacturing challenges creatively
• Excellent communication skills—able to clearly explain technical changes and collaborate effectively with suppliers and internal teams
• Strong organizational habits and attention to detail
• Self-motivated, ownership-driven mindset with a “we” and “can-do” attitude
• Willingness to travel domestically and internationally up to 15%

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Why Join Primary Arms Optics?

You’ll join a team that values practical engineering, continuous improvement, and real-world performance. We give engineers the opportunity to make a tangible impact, work on products people care about, and grow their skills in a collaborative, high-ownership environment.

If you’re ready to design products that matter and grow with a team that takes pride in what it builds, we’d love to hear from you.