Principal Software Engineer Jobs in Pennsylvania

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Principal Software Engineer - Real Time Systems

Aduril Industries

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Pittsburgh, Pennsylvania, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c
Posted 60+ days ago | Updated 2 hours ago

Principal Software Engineer / Ruby

Decisiv

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Remote

Full-time

REMOTE Position Decisiv is seeking a Principal Software Engineer to lead the architecture, scalability, and interoperability of our growing platform. As technology landscapes shift, our platform must evolve to handle increasing data demands, automation, and intelligent decision-making while maintaining reliability and flexibility. As a Principal Engineer, you will define long-term technical strategy, guide cross-team architecture, and mentor engineers, ensuring our platform continues to adapt to
Posted 5 hours ago | Updated 5 hours ago

Principal Software Engineer

Sierra Nevada Corporation

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Remote or Lone Tree, Colorado, USA

Full-time

Do you enjoy developing new products and services? Join us! Our Software Engineers work in an agile, collective environment. You will be using your skills and expertise to define, design, develop, test, certify and improve cutting-edge software products. These cover a very wide range from advanced mission payloads and electronic systems through highly integrated aircraft to orbital and space exploration systems. You'll perform coding, debugging, testing, and troubleshooting of systems and softwa
Posted 60+ days ago | Updated 2 hours ago

Principal Software Engineer - Virtual Cloud Networking DataPlane

Oracle Corporation

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Remote

Full-time

Job Description At Oracle Cloud Infrastructure (OCI), we build the future of the cloud for Enterprises as a diverse team of fellow creators and inventors. We act with the speed and attitude of a start-up, with the scale and customer-focus of the leading enterprise software company in the world. Values are OCI's foundation and how we deliver excellence. We strive for equity, inclusion, and respect for all. We are committed to the greater good in our products and our actions. We are constantly le
Posted 22 days ago | Updated 2 hours ago

Principal Software Engineer (Onsite)

Raytheon

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State College, Pennsylvania, USA

Full-time

Date Posted: 2025-06-13 Country: United States of America Location: PA602: 302 Science Park Road, Bldg 5C 302 Science Park Road Building 5C, State College, PA, 16803-2214 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: TS/SCI with Polygraph At Raytheon, the foundation of everything we do is rooted in our values and a higher c
Posted 23 days ago | Updated 11 hours ago

Principal Software Engineer

AFLAC

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Remote

Full-time

Salary Range: $110,000 - $169,000 Job Posting End Date: 7/15/25 We've Got You Under Our Wing We are the duck. We develop and empower our people, cultivate relationships, give back to our community, and celebrate every success along the way. We do it all The Aflac Way . Aflac, a Fortune 500 company, is an industry leader in voluntary insurance products that pay cash directly to policyholders and one of America's best-known brands. Aflac has been recognized as Fortune's 50 Best Workplaces for Di
Posted 47 days ago | Updated 11 hours ago

Principal Software Engineer - Virtual Cloud Networking Dataplane

Oracle Corporation

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Remote

Full-time

Job Description At Oracle Cloud Infrastructure (OCI), we build the future of the cloud for Enterprises as a diverse team of fellow creators and inventors. We act with the speed and attitude of a start-up, with the scale and customer-focus of the leading enterprise software company in the world. Values are OCI's foundation and how we deliver excellence. We strive for equity, inclusion, and respect for all. We are committed to the greater good in our products and our actions. We are constantly l
Posted 60+ days ago | Updated 2 hours ago

Principal Software Engineer

Tradeweb Markets LLC

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Remote or Golden, Colorado, USA

Full-time

ICD is treasury?s trusted provider of investment technology and the corporate client channel of Tradeweb, a leading global operator of electronic marketplaces for rates, credit, equities and money markets. ICD provides tools for organizations to independently research, trade, analyze, and report on investments. With ICD Portal, over 500 organizations across 65 industries in more than 45 countries gain unbiased access to the market for managing liquidity. Organizations can manage risk across thei
Posted 60+ days ago | Updated 3 hours ago

Principal Software Engineer - Kernel Engineer (C++)

Request Technology, LLC

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Remote

Full-time

NO SPONSORSHIP Principal Kernel Engineer SALARY: $235,000 - $275,000 plus 10% bonus and pre-IPO stock LOCATION: remote You will focus on stopping ransomware. New features, bug fixes, performance enhancements, write high quality multithread. Safe code c++ in both Kernal mode win32 APIs and NT Kernal internals reverse engineering windows mini-filter drivers windows filter platform call out drivers SQL databricks rust c++ We deliver an anti-ransomware solution that breaks new ground as to what an a
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Posted 32 days ago | Updated 7 days ago

Principal Software Engineer - REMOTE

DriveTime

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Remote or Tempe, Arizona, USA

Full-time

What's Under the Hood DriveTime Family of Brands is the largest privately owned used car sales finance & servicing company in the nation. Headquartered in Tempe, Arizona and Dallas, Texas, we create opportunities and improve the lives of our customers and our employees by placing a focus on putting the right customer, in the right vehicle, on the right terms and on their path to ownership. The DriveTime Family of Brands spans across DriveTime, Bridgecrest and SilverRock. You can find us at th
Posted 39 days ago | Updated 11 hours ago

(USA) Principal, Software Engineer

Walmart Inc.

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Remote or Denver, Colorado, USA

Full-time

Position Summary Are you ready to lead and innovate in the tech industry? Join the Walmart/VIZIO Team as a Principal Software Engineer and drive the development of cutting-edge cloud applications. This is a unique opportunity to influence the future of technology with one of the world's largest retailers and a leading brand in consumer electronics. What you'll do About the Team The Walmart/VIZIO Team is dedicated to creating seamless and scalable software solutions that enhance the customer ex
Posted 4 days ago | Updated 2 hours ago

Principal, Software Engineer

Walmart Inc.

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Remote or Bellevue, Washington, USA

Full-time

Position Summary Are you passionate about applying cutting-edge GenAI technology to revolutionize customer service? Do you dream of playing a technical leadership role that will shape the future of the customer service experience at Walmart's scale? If you possess exceptional technical expertise, curiosity, and a desire to build scalable products with GenAI, this opportunity may be for you. As a Principal Software Engineer with the Customer Care Technology team, you will play a pivotal role in
Posted 15 days ago | Updated 2 hours ago

(USA) Principal, Software Engineer

Walmart Inc.

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Remote or Bentonville, Arkansas, USA

Full-time

Position Summary What you'll do It's an exciting time to join our Walmart journey. Want to use design and coding skills to solve real-life large-scale problems impacting millions of lives? We are seeking a Principal Software Engineer - Fullstack for a key position to deliver key experiences for our Corporate Social Responsibility products. We are looking for a highly motivated engineer who will be playing a crucial role in design and implementation of high performing systems and 3rd party int
Posted 23 days ago | Updated 2 hours ago

Principal Software Engineer, Anaplan Lead

Amgen Inc

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Remote

Full-time

Career Category Information Systems Job Description Join Amgen's Mission of Serving Patients At Amgen, if you feel like you're part of something bigger, it's because you are. Our shared mission-to serve patients living with serious illnesses-drives all that we do. Since 1980, we've helped pioneer the world of biotech in our fight against the world's toughest diseases. With our focus on four therapeutic areas -Oncology, Inflammation, General Medicine, and Rare Disease- we reach millions of pat
Posted 20 days ago | Updated 2 hours ago

Principal Software Engineer, TensorRT-LLM

NVIDIA Corporation

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Remote or Santa Clara, California, USA

Full-time

We are now looking for a Principal Software Engineer, TensorRT-LLM ! NVIDIA is hiring experienced principal software engineer for its TensorRT-LLM team. Academic and commercial groups around the world are using GPUs to power a revolution in AI, enabling breakthroughs in areas like content creation, code generation and information synthesis, that have put AI on the precipice of an "iPhone moment". Join the team building the AI serving software which is foundational to product lines within NVIDIA
Posted 14 days ago | Updated 2 hours ago

Principal Software Engineer (Onsite)

RTX Corporation

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State College, Pennsylvania, USA

Full-time

Date Posted: 2025-06-09 Country: United States of America Location: PA602: 302 Science Park Road, Bldg 5C 302 Science Park Road Building 5C, State College, PA, 16803-2214 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: TS/SCI with Polygraph At Raytheon, the foundation of everything we do is rooted in our values and a higher calling
Posted 19 days ago | Updated 2 hours ago

Principal Software Engineer - Signify Health

CVS Health

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Texas, USA

Full-time

At CVS Health, we're building a world of health around every consumer and surrounding ourselves with dedicated colleagues who are passionate about transforming health care. As the nation's leading health solutions company, we reach millions of Americans through our local presence, digital channels and more than 300,000 purpose-driven colleagues - caring for people where, when and how they choose in a way that is uniquely more connected, more convenient and more compassionate. And we do it all w
Posted 21 days ago | Updated 2 hours ago

(USA) Principal, Software Engineer

Walmart Inc.

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Remote or Dallas, Texas, USA

Full-time

Position Summary Join Walmart|VIZIO and take your career to the next level! Our team owns the Bluetooth stack development and owns support for Vizio TVs. We are working on next generation of OS HAL platform for future TVs. We are a dynamic group passionate about media and Bluetooth technologies. We use cutting edge software/hardware tools including latest modern C/C++ development. This role will utilize architecture and design for Bluetooth on Linux based TV OS as well as porting audio and appli
Posted 54 days ago | Updated 2 hours ago

Principal, Software Engineer- Node.js

Walmart Inc.

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Remote or Bentonville, Arkansas, USA

Full-time

Position Summary What you'll do Walmarts Gen AI powered My Assistant team is seeking an experienced Principal Software Engineer with expertise in Node.Js. This individual will play a pivotal role in reshaping, designing and implementing My Assistant Experience as a platform which can be integrated, leveraged, and supported as a single stop shop for all our associate needs. This role offers significant growth prospects and reports directly to the Director of Walmart My Assistant Experiences. W
Posted 50 days ago | Updated 2 hours ago

Principal Software Engineer - FACE Applications (Hybrid)

RTX Corporation

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Remote or Cedar Rapids, Iowa, USA

Full-time

Date Posted: 2025-06-09 Country: United States of America Location: HIA32: Cedar Rapids, IA 400 Collins Rd NE , Cedar Rapids, IA, 52498-0505 USA Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: Security Clearance: None/Not Required Shape the future of military avionics software. Collins Aerospace is seeking an experienced Principal Project Engineer to lead cross-functional engineering efforts within our Military Avionics Open Platform Application Softw
Posted 8 days ago | Updated 2 hours ago