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Prototyping Engineer Jobs in Colorado (NOW HIRING)

Infleqtion

Applications Engineer

Louisville, CO · On-site

Document prototypes, write test protocols, and assist in transferring successful applications to ... Bachelor's degree in electrical engineering, Computer Engineering, Physics, or a related technical ...

Infleqtion

Applications Engineer

Louisville, CO · On-site

Document prototypes, write test protocols, and assist in transferring successful applications to ... Bachelor's degree in electrical engineering, Computer Engineering, Physics, or a related technical ...

Stratom

Sr. Mechanical Engineer

Louisville, CO · On-site

$120K - $180K/yr

With multiple working prototypes in hand, our next major opportunity is transitioning these ... We are looking for talented and experienced engineers who want to take ownership of hard problems ...

IDEX Corporation

Optical Engineer

Longmont, CO · On-site

$127K - $165K/yr

Support prototype-to-production process at manufacturing sites. * Troubleshoot technical issues and ... Bachelor's degree in Optical Engineering, Physics, Mechanical Engineering (with optics focus), or ...

IDEX

Optical Engineer

Longmont, CO

$127K - $165K/yr

Support prototype-to-production process at manufacturing sites. * Troubleshoot technical issues and ... Bachelor's degree in Optical Engineering, Physics, Mechanical Engineering (with optics focus), or ...

Anduril Industries

Lead Hardware Engineer

Boulder, CO

$128K - $169K/yr

You will transition our high-precision active electro-optical (EO) systems from early-stage prototypes and Engineering Development Units (EDUs) through Engineering and Manufacturing Development (EMD ...

Kosmos

Mechanical Engineer

Manitou Springs, CO · On-site

$100K - $140K/yr

The design work/scope required by this Senior Mechanical Engineering position encompasses the ... prototype, pre commercial and new commercial products that are being nurtured in an advanced ...

Kosmos

Mechanical Engineer

Aurora, CO

$100K - $150K/yr

The design work/scope required by this Senior Mechanical Engineering position encompasses the ... prototype, pre commercial and new commercial products that are being nurtured in an advanced ...

Kosmos

Mechanical Engineer

Manitou Springs, CO

$100K - $150K/yr

The design work/scope required by this Senior Mechanical Engineering position encompasses the ... prototype, pre commercial and new commercial products that are being nurtured in an advanced ...

Kosmos

Mechanical Engineer

Aurora, CO · On-site

$90K - $130K/yr

The design work/scope required by this Senior Mechanical Engineering position encompasses the ... prototype, pre commercial and new commercial products that are being nurtured in an advanced ...

Kosmos

Mechanical Engineer

Aurora, CO

$100K - $140K/yr

The design work/scope required by this Senior Mechanical Engineering position encompasses the ... prototype, pre commercial and new commercial products that are being nurtured in an advanced ...

Kosmos

Mechanical Engineer

Aurora, CO · On-site

$90K - $140K/yr

The design work/scope required by this Senior Mechanical Engineering position encompasses the ... prototype, pre commercial and new commercial products that are being nurtured in an advanced ...

FIRST RF

Manufacturing Engineer

Boulder, CO · On-site

$76K - $98K/yr

This role serves as the bridge between Engineering and Operations, ensuring that products are ... Support prototype, EMD, and production builds by providing hands-on technical guidance and ...

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Prototyping Engineer information

What does a typical day look like for a Prototyping Engineer?

A typical day for a Prototyping Engineer often involves collaborating with design and development teams to translate concepts and sketches into working physical models. You may spend time using CAD software, operating fabrication equipment like 3D printers, and assembling or testing prototypes for functionality. Troubleshooting issues and iterating designs based on test results are frequent tasks. This role requires consistent teamwork with engineers, designers, and sometimes clients to ensure the prototyping process aligns with overall project goals.

What is a Prototyping Engineer job?

A Prototyping Engineer is responsible for designing, developing, and testing prototypes of new products or components. They work with design teams to refine concepts, select materials, and ensure that prototypes meet functional and performance requirements. This role involves using various fabrication techniques, such as 3D printing, CNC machining, and electronics assembly. Prototyping Engineers collaborate with R&D, manufacturing, and quality teams to iterate and improve designs before full-scale production. Their goal is to validate ideas quickly and efficiently, reducing development time and costs.

What are the key skills and qualifications needed to thrive in the Prototyping Engineer position, and why are they important?

To thrive as a Prototyping Engineer, you need strong skills in mechanical or electrical engineering, rapid prototyping, and CAD design, usually supported by a relevant engineering degree. Knowledge of 3D printing, CNC machining, and prototyping software (such as SolidWorks or AutoCAD) is typically essential, along with familiarity with relevant safety standards. Creative problem-solving, collaboration, and effective communication are valuable soft skills in this role. These abilities enable engineers to quickly turn ideas into functional prototypes, ensuring efficient product development and iterative testing.

What are popular job titles related to Prototyping Engineer jobs in Colorado? For Prototyping Engineer jobs in Colorado, the most frequently searched job titles are:
What job categories do people searching Prototyping Engineer jobs in Colorado look for? The top searched job categories for Prototyping Engineer jobs in Colorado are:
Prototyping Engineer jobs near you
Infographic showing various Prototyping Engineer job openings in Colorado as of June 2026, with employment types broken down into 69% Full Time, 27% Part Time, and 4% Contract. Highlights an 88% Physical, 4% Hybrid, and 8% Remote job distribution.

Applications Engineer

Infleqtion

Louisville, CO • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 26 days ago

Job description

Infleqtion is a global quantum technology company solving the world's most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading-edge commercial products, Infleqtion enables "quantum everywhere" through our ecosystem of devices and platforms.
POSITION SUMMARY
We are seeking an Applications Engineer to establish and lead a new Applications Lab focused on rapid prototyping with Infleqtion's cutting-edge quantum technologies, including atomic clocks and quantum sensors. This hands-on role is critical in bridging engineering and customer engagement. The ideal candidate is someone who thrives in fast-paced, cross-disciplinary environments and is excited by the opportunity to develop compelling technology demonstrations that directly align with market needs.
This individual will work closely with Business Development and Sales teams to identify customer interests and translate those into functional prototypes and application demos. Success in this role requires strong technical breadth, creative problem-solving, and excellent communication skills.
JOB RESPONSIBILITIES
  • Establish, organize, and manage the Infleqtion Applications Lab to support demo development and prototyping.
  • Design, build, and deploy proof-of-concept systems that showcase the utility of quantum products in real-world scenarios.
  • Engage directly with Sales and BD teams to interpret customer needs and shape product application narratives.
  • Integrate with cross-functional engineering teams to understand internal platforms and modify them to suit market test cases.
  • Design and implement custom software to interface existing hardware platforms, integrating diverse subsystems into cohesive, demo-ready applications.
  • Develop simulations that demonstrate feasibility of application concepts and contribute to technical publications and white papers
  • Maintain and improve demo codebase and hardware infrastructure.
  • Document prototypes, write test protocols, and assist in transferring successful applications to product teams.
  • Support public and private demonstrations and assist in customer workshops.

Requirements
QUALIFICATIONS: EDUCATION AND EXPERIENCE
  • Bachelor's degree in electrical engineering, Computer Engineering, Physics, or a related technical field (master's degree preferred).
  • 5+ years of experience in prototyping, embedded system development, or applications engineering roles.
  • Strong scripting and software development experience in Python.
  • Comfortable working in embedded Linux environments
  • Proven experience interfacing with hardware APIs and customizing embedded applications.
  • Experience designing and building demos or customer-facing prototypes with technical hardware.
  • Ability to process, visualize, and communicate technical data clearly to technical and non-technical stakeholders.
  • Proficiency with version control systems (e.g., Git).

PREFERRED QUALIFICATIONS
  • Experience with React and web-based UI development for demos.
  • Experience with radar systems.
  • Experience with Rust and hardware description languages (e.g., Verilog, VHDL, or similar) is a plus.
  • Familiarity with simulation and modeling tools such as Simulink, MATLAB, Ansys, COMSOL, or Python-based simulation libraries.
  • Hands-on lab experience working with high precision oscillators, RF systems, and timing standards is a plus.
  • Prior experience with customer-facing technical roles or technical sales support.
  • Broad familiarity with hardware systems, including electronics, photonics, and opto-mechanical integration.
  • Comfort working in high-urgency, fast-turnaround environments focused on innovation.

WE HIGHLY VALUE:
  • Great verbal and written communication skills to effectively share information with technical and non-technical staff
  • Strong engagement and collaboration skills with constant drive for success, ownership and pride in your work
  • Sense of urgency and responsibility and a true passion for attention to detail where it matters
  • Open communication style and extremely positive attitude which shows through consistent daily habits
  • Demonstrated problem solving skills and fast learning rate
  • Capability of working with both a high degree of autonomy (taking high level goal as an input to discover and execute an optimal plan, gathering required resources to achieve the goal) and collaboratively (soliciting and incorporating input from colleagues as necessary)

NOTE
This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license
TRAVEL
Up to 10% travel may be required.
WORKING CONDITIONS and PHYSICAL REQUIREMENTS
Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. Able to sit, stand, bend, lift and carry up to 40 pounds without assistance. Able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements.
Benefits
Benefits
  • Salary range: 95,000 to 135,000 USD/year
  • 100% company-paid medical, dental, vision, short/long-term disability
  • Employer-funded Health Savings Account
  • Unlimited PTO
  • 401(k) match
  • Company-paid Life and AD&D Insurance
  • Flexible Savings Account
  • Paid FMLA, Maternity/Paternity Leave
  • Employee Assistance Program
  • Student Loan Repayment

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