Principal R&D Engineer Jobs

Principal R&D Engineer jobs are open across aerospace, biotech, semiconductor, and industrial automation companies, from senior individual contributor to distinguished engineer and fellow, with specializations in systems engineering, hardware development, and advanced materials research. Find a role that fits below and apply directly.

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Overview

Open roles73
Top stateCalifornia
Top employerKraft Heinz
Top cityIrvine, CA
Work type48% Hybrid
Top industryTechnology

Showing 5 of 73+ Principal R&D Engineer jobs

Bloomington R&D Principal Engineer
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New 14h ago
Bloomington R&D Principal Engineer
All Flex Solutions
Minneapolis, Minnesota
Engineering (Non-Software)
Product Management
Technical Product & Program Management
$106k - $131k/yr
Bachelor's degree in mechanical engineering
201-500

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Principal R&D Scientist
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New 15h ago
Principal R&D Scientist
Dimer Instruments
Santa Barbara County, California
Laboratory Research
Biotech & Life Sciences
Specialized Engineering
Mechanical Engineering
Electrical Engineering
Engineering (Non-Software)
On-Site
Doctorate

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Principal Engineer (R&D Lead) - Hybrid - Eagan, MN/ San Antonio, TX
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New 18h ago
Principal Engineer (R&D Lead) - Hybrid - Eagan, MN/ San Antonio, TX
Solventum
San Antonio, Texas
Compliance & Risk
Cybersecurity
Security Engineering
$143k - $196k/yr
Hybrid
Master's degree in chemistry
10,000+

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​Principal Scientist, R&D – CX Product Insights, Away From Home​
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Added 4d ago
​Principal Scientist, R&D – CX Product Insights, Away From Home​
Kraft Heinz
Glenview, Illinois
Business Strategy
Consulting & Professional Services
Project Management
$104k - $130k/yr
Bachelor's degree in food science
10,000+

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Principal R&D Engineer, RF & Impant Power
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Added 4d ago
Principal R&D Engineer, RF & Impant Power
SYNCHRON
San Diego, California
Electrical Engineering
Engineering (Non-Software)
Specialized Engineering
$160k - $200k/yr
Bachelor's degree in electrical engineering
11-50

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Principal R&D Engineer Job Market

Who's Hiring

Kraft Heinz6 open roles
Axon4 open roles
Riot Games4 open roles

Top Industries Hiring

  • Technology & Software
  • Biotechnology & Pharmaceuticals
  • Electronics & Hardware
  • Education
  • Manufacturing

What Employers Look For

The qualifications that appear most often in principal R&D engineer jobs.

  • Advanced degree in engineering, materials science, physics, or a closely related technical field
  • 10 or more years of hands-on R&D experience with demonstrated ownership of full development cycles
  • Proficiency in simulation and modeling tools such as MATLAB, ANSYS, or equivalent domain software
  • Experience translating research findings into manufacturing-ready specifications or regulatory submissions
  • Authorship or co-authorship of patents, peer-reviewed publications, or technical standards contributions
  • Ability to lead cross-functional technical teams and present complex findings to executive stakeholders

Tips for Your Principal R&D Engineer Job Search

Tailor your resume to stage gates

Principal R&D roles expect evidence of moving projects from concept through prototype to production. For each project on your resume, name the phase you owned, the technical decision you made, and the outcome. Reviewers scan for that arc, not just a list of tools.

Highlight cross-functional technical leadership

Job postings for principal r&d engineer positions consistently ask for influence without direct authority. Show where you aligned manufacturing, regulatory, or software teams around your design decisions. That differentiates you from senior engineers who only own individual deliverables.

Apply early to roles that fit

Migrate Mate lists principal r&d engineer openings from across the United States in one place, so you can find roles that match and apply directly to each listing.

Target postings that match your IP portfolio

Many principal r&d engineer openings screen for patent authorship in a specific domain. If you hold patents, list them in a dedicated section with the technology area and filing year. It signals depth that a job title alone can't convey.

Prepare a whiteboard session for technical interviews

Expect at least one live technical deep-dive where you defend a design choice or walk through a failure mode analysis. Practice narrating your reasoning out loud, not just arriving at an answer. Interviewers at this level are evaluating your engineering judgment as much as your knowledge.

Negotiate scope before accepting an offer

At the principal level, the team size, budget authority, and product roadmap ownership vary widely between companies. Before you accept, ask what the role controls versus what it advises on. That determines whether the title matches the actual seniority in practice.

Principal R&D Engineer Jobs: Frequently Asked Questions

Which companies are hiring the most principal r&d engineers?

Kraft Heinz, Axon, and Riot Games are hiring the most principal r&d engineers right now, with openings concentrated in California, Illinois, and Texas, based on current listings on Migrate Mate as of November 2026. Demand is strongest in aerospace, semiconductor, and medical device companies scaling new product lines.

How many principal r&d engineer jobs are remote?

About 61% of principal r&d engineer openings are fully remote or hybrid as of November 2026, though the share varies sharply by specialization. Software-heavy R&D roles in areas like algorithm development and data science tooling tend to offer more remote flexibility than roles requiring lab access, prototype builds, or cleanroom work.

How do you become a principal r&d engineer?

Most principal r&d engineers start with an advanced degree in a core engineering or science discipline, then spend several years as a senior engineer owning increasingly complex projects. The step up to principal typically requires leading a technically novel effort from concept to delivery, building a record of cross-functional influence, and contributing to patents or published research that demonstrates original work beyond execution.

Can you get a principal r&d engineer job without direct principal-level experience?

Some candidates move into the principal title from a strong senior engineer background if they can demonstrate scope equivalent to the role. Focus your application on projects where you set the technical direction, not just carried it out. Smaller companies and startups are more likely to promote based on demonstrated capability than strict years-in-title requirements.

What does the principal r&d engineer interview process look like?

The process usually includes an initial recruiter screen, a technical phone or video interview with an engineering manager, a deep-dive session where you walk through a past project in detail, and a final loop with senior engineers and cross-functional stakeholders. Some companies add a live design or problem-solving exercise. The entire process often runs across multiple weeks.

Where can I find and apply to principal r&d engineer jobs?

You can find and apply to principal r&d engineer jobs on Migrate Mate, which lists current openings from companies across the United States. Search the listings to find roles that match your background and apply directly to each one that fits.

See All 73 Principal R&D Engineer Jobs

Find roles that match your experience and apply in just a few clicks.

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