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Principal United States Jobs (On-site work)

646 Job Offers

AI Principal Engineer
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192580.00 - 240720.00 USD / Year
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Voya Financial
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Manager, Principal & Major Gifts Operations
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Not provided
Doctors Without Borders
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Principal Scientist – Protein Formulation & Biophysical Characterization (High-Concentration Biologics)
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106000.00 - 176600.00 USD / Year
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Pfizer
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Principal Software Engineer, UX – Asset Management Technology Foundations
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107000.00 - 216000.00 USD / Year
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Fidelity Investments
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Assistant Principal of Culture
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United States, 20 Bruckner Blvd
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125000.00 - 135000.00 USD / Year
DREAM
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Principal Software Engineer
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REGENT Craft
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Principal Quality Assurance Engineer
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Fidelity Investments
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Principal CAD Designer
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CesiumAstro
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Principal CAD Designer
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CesiumAstro
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Principal CAD Designer
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CesiumAstro
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Principal Reliability Supplier Industrialization Engineer [Precision Machining & Turbomachinery Reliability]
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Mach Industries
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Principal Systems Engineer, Aircraft Simulation and Design Integration
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Mach Industries
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Principal Reliability Supplier Industrialization Engineer [Mechanical, Composites, Castings Reliability]
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Mach Industries
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Principal GNC Engineer
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Mach Industries
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Principal Certification & Airworthiness Engineer
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Mach Industries
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Principal Forward Deployable Autonomous Systems Engineer
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Mach Industries
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Principal Design Engineer
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Graver Technologies, LLC
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Principal Program Manager, Databricks & Enterprise Data Platforms
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Fractal
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Senior / Principal Mechanical Engineer – Space Systems
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NewSpace Technical
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Principal AIT Engineer
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NewSpace Technical
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About the Principal role

A Principal role represents a senior leadership position found across various industries, from construction and engineering to technology and product management. Individuals in these jobs are trusted with high-level strategic oversight, complex problem-solving, and driving significant organizational impact. Unlike entry-level or mid-career positions, Principal jobs typically require a deep well of specialized expertise, a proven track record of leadership, and the ability to influence direction without direct managerial authority over every team member.

In a professional context, a Principal is often the highest individual contributor or a senior team lead responsible for shaping the vision and execution of critical initiatives. For example, in design and construction sectors, a Principal Designer focuses on risk management from the earliest stages of a project. They ensure that health and safety regulations, such as the CDM Regulations 2015, are integrated into the design process, mitigating hazards before construction begins. This involves leading cross-functional coordination, conducting design reviews, and ensuring a seamless handover to contractors.

In technology and business strategy, Principal Product Managers own the end-to-end lifecycle of complex service portfolios or product lines. They are responsible for defining strategy, developing business cases, and launching innovative offerings that drive customer adoption and revenue growth. These roles demand a data-driven approach to decision-making, strong cross-functional leadership, and the ability to influence executives and stakeholders across engineering, sales, marketing, and customer success teams. Common responsibilities include market analysis, competitive benchmarking, pricing strategy, and building go-to-market plans.

Typical skills required for Principal jobs include exceptional communication and presentation abilities, strategic thinking, and a high degree of autonomy. Candidates usually possess a bachelor’s or master’s degree in a relevant field, combined with significant experience—often eight or more years in a related domain. Technical proficiency is critical, whether in understanding network security, cloud infrastructure, or construction regulations. Soft skills such as negotiation, mentorship, and the ability to drive alignment in matrixed organizations are equally important.

Ultimately, Principal jobs are about leading from the front, solving the most challenging problems, and setting the standard for excellence within an organization. Whether mitigating risk on a construction site or defining the future of a software platform, these professionals are integral to driving meaningful, lasting results.