Engineering with precision. Designing with inspiration. Creating natural solutions.
About RER Product Development
At RER Product Development, we partner with startups, entrepreneurs, and growing businesses to bring ideas to life
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We specialize in the early phases of development — collaborating closely with clients through ideation, proof of concept, and prototyping — where the foundation for a successful product is built.
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With experience across the full product lifecycle, we also provide the engineering precision and development support needed to move concepts through testing, refinement, and into production.
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By combining rigorous analysis with inspired design thinking, we create solutions that are both technically sound and naturally intuitive.
Core Principles
Engineering Precision
Grounded in rigorous analysis and technical expertise, we ensure every concept is practical, feasible, and built on a strong foundation. Our engineering-first approach minimizes risk and accelerates development.
Inspired Design
We believe solutions should be more than functional — they should feel natural, intuitive, and purposeful. By blending imagination with problem-solving, we transform early ideas into designs that resonate and inspire confidence.
Natural Integration
Innovation is strongest when it feels effortless. Our prototypes and concepts integrate engineering precision and inspired design into cohesive solutions that align with how people naturally interact and experience products.
Our Services
Concept Exploration
Every product begins with an idea. We help refine early concepts into clear, actionable directions by combining creative ideation with engineering insight. Through brainstorming, research, and feasibility assessment, we uncover the most promising pathways forward.
Engineering Analysis & Design
Turning ideas into reality requires more than creativity — it demands precision. We apply analytical rigor to evaluate performance, reliability, and usability while developing designs that are both innovative and technically sound.
Prototyping
Prototypes bring ideas off the page and into the real world. We build functional and iterative models to validate concepts, test performance, and reveal opportunities for refinement, accelerating the path from vision to proof of concept.
Design For Manufacturing
Great ideas succeed when they can be built efficiently and at scale. We optimize designs for manufacturability, considering cost, process, and quality from the start, ensuring a smooth transition from prototype to production.
Industries
At RER Product Development, we are equipped to support projects across a wide range of industries. While our expertise is broadly applicable, we bring direct experience in consumer products, medical devices, industrial automation, and robotics. These fields have shaped our approach and given us the insight to deliver solutions that balance innovation, usability, and manufacturability.
Consumer Products
From everyday tools to lifestyle products, we help transform consumer-focused ideas into well-designed, manufacturable solutions. Our approach balances functionality, aesthetics, and user experience to ensure products stand out in competitive markets.
Medical Devices
With experience in the highly regulated medical field, we understand the importance of precision, reliability, and compliance. We develop devices with patient safety and usability at the forefront, while supporting documentation and design controls that streamline the path to approval and production.
Industrial Automation
We design and prototype solutions that improve efficiency, reliability, and scalability in industrial systems. From custom fixtures to automated assemblies, we bring engineering rigor and practical insight to applications where performance and durability matter most.
Robotics
Our robotics experience spans electromechanical design, motion control, and integration of sensors and actuators. Whether developing robotic subsystems or complete platforms, we focus on creating systems that are precise, adaptable, and built for real-world performance.
Robby Ratajczak
Founder and Lead Engineer
Hi, I’m Robby. I started RER Product Development to combine my love of engineering with my drive to explore and create. I’ve worked on everything from automation systems to medical devices, and I bring a hands-on approach to every project. Whether it’s designing in CAD, welding in the shop, or hiking with my dog, I’m happiest when I’m building, exploring, and solving problems in creative ways. I believe the best solutions come from a combination of technical expertise and life experiences — each one adding to the foundation needed to solve tomorrow’s unique challenges.
