546 matching jobs for “Principal Software Engineer”

How results work

Exact titles rank first, then title variations and keywords in descriptions. These labels aren't qualification scores. Without keywords, recently added jobs appear first.

Palo Alto Networks

Principal C++ Software Engineer (Prisma Browser)

Office - Israel - Tel Aviv

Added Oct 27, 2026

Save job

Palo Alto Networks

Senior Principal Software Engineer (Prisma Access)

Office - USA - CA - Headquarters

… enables the operationalization of security deployment for remote networks and mobile users. As a Senior Engineer, your role will involve building and designing distributed backend services that serve as the backbone of …

Added Oct 27, 2026

Save job

Nvidia

Principal System Software Engineer - CUDA Driver

Santa Clara, California, United States

… Science, Electrical Engineering, or related field (or equivalent experience) 15+ years of relevant systems software development experience Strong C programming skills Experience designing, debugging, and maintaining complex …

Added Oct 27, 2026

Save job

Nvidia

Principal Software Engineer, Mapping - Autonomous Vehicles

Santa Clara, California, United States +1 location

… data. What we need to see: Strong programming skills in C++ and experience building production-quality software systems. Solid foundation in 3D computer vision, 3D geometry, multi-view geometry, structure from motion, …

Added Oct 27, 2026

Save job

General Motors

Principal Software Engineer - Build System Modernization

Milford, Michigan, United States of America +4 locations

Hybrid
Full time
Regular

The Role: General Motors is seeking a software engineering leader to modernize and scale the build systems that support software-defined vehicles. This …

Added Oct 12, 2026

Save job

Northrop Grumman

Sr Principal Software Engineer - Integration and Test

United States-California-San Diego

Pay posted by employer$142,200–$213,400

include, but are not limited to: • Perform software integration of multiple software components into a single system on the host environment. • Work in …

Added Nov 3, 2026

Save job

RTX

Senior Principal Software Engineer - Embedded Communications (Onsite)

Cedar Rapids, Iowa, United States

… forces around the world safe, connected, and informed—no matter the environment. We’re looking for a Senior Principal Software Engineer who’s ready to make an impact. In this role, you won’t just write code, you’ll help shape the future of …

Added Oct 27, 2026

Save job

Mastercard

Principal Software Engineer - Java Architect, Microservices, Cloud, Springboot

Pune, Maharashtra, India

… services that help people, businesses and governments realize their greatest potential. Title and Summary Principal Software Engineer - Java Architect, Microservices, Cloud, Springboot Principal Software Engineer, Real time Payments (RTP) …

Added Oct 27, 2026

Save job

RTX

Principal Software Engineer - Gen4 Radar / Ground Station

El Segundo, California, United States

Work on complex technical problems and provide highly innovative solutions. Lead agile software development team as a SME and product owner for ASARS-2A In addition to leading the team perform software …

Added Oct 27, 2026

Save job

Cisco Systems

Principal Software Engineer, Splunk Analytics and Search

Seattle, Washington, United States +6 locations

Pay posted by employer$241,400–$322,600

… to support new ways of discovering insights and solving problems. Your Impact We're looking for a Principal Software Engineer who enjoys solving difficult technical problems, working across teams, and helping shape the future of …

Added Oct 27, 2026

Save job

Expedia Group

Développeur(-euse) principal(e) de logiciels (contenu) /Principal Software Development Engineer

Québec, Quebec, Canada

Full time

… de carrière enrichissant. Nous construisons un monde plus ouvert. Joignez-vous à nous! Développeur(-euse) principal(e) de logiciels (contenu) Présentation de l’équipe Notre équipe technologique collabore avec différentes …

Added Oct 27, 2026

Save job

Caterpillar

Principal Software Engineer - Digital Twin and Simulation

Irving, Texas, United States

Pay posted by employer$147,760–$240,110

… impossible—intelligent machines operating in dynamic jobsites—into reality. We are looking for a senior software engineer to lead the development of our digitial twin and simulation stack. This is a key position which …

Added Oct 27, 2026

Save job

RTX

Senior Principal Software Engineer – 5G Core Networks

San Jose, California, United States

… us and help shape the future of aerospace and defense. Applied Signal Technology (AST) is seeking a Senior Principal Software Engineer with specialization in protocol development within 5G Core Networks who strives for excellence and has a …

Added Oct 27, 2026

Save job

RTX

Senior Principal Program Protection Engineer (Embedded Software Engineer)

Tewksbury, Massachusetts, United States

The Software Product Assurance Center’s Software Security Sensors and Effectors Department is seeking a highly skilled …

Added Oct 27, 2026

Save job

Northrop Grumman

Principal Software Engineer (Active Secret Clearance Required)

United States-Oklahoma-Oklahoma City

Pay posted by employer$93,300–$139,900

… employees are not only part of history, they're making history. Northrop Grumman is seeking an experienced Software Engineer to join our dynamic team. This position will support our Aeronautics Systems sector in Oklahoma …

Added Nov 3, 2026

Save job

Nvidia

Principal System Software Engineer - Data Center MODS

Santa Clara, California, United States +1 location

… the team and see how you can make a lasting impact on the world! The Data Center MODS organization seeks a Principal Engineer to architect and scale next-generation L10 and L11 diagnostic systems for Cloud Service Providers …

Added Oct 31, 2026

Save job

Palo Alto Networks

Principal Software Engineer (Cortex Vulnerability Experience Platform)

Office - USA - CA - Headquarters

… production Be a champion of test driven development Qualifications 8+ years of experience as a professional software engineer writing software Proficiency in Python Experienced about Software development and best practices …

Added Oct 27, 2026

Save job

RTX

Principal Software Systems Quality Engineer Marlborough, MA

Marlborough, Massachusetts, United States

… shape the future of aerospace and defense. Our team in Marlborough, MA, has an immediate need for an onsite Principal Software Systems Quality Engineer (Quality Assurance/Compliance) to support Land & Air Defense Systems …

Added Nov 4, 2026

Save job

GE Vernova

Software Engineer

Chennai, Tamil Nadu, India 3 postings

Summary Job Description Software Engineer will be responsible for designing, developing, and maintaining software solutions that leverage …

Added Nov 3, 2026

Save job

GE Vernova

Software Engineer

Chennai, Tamil Nadu, India

Summary Job Description Software Engineer will be responsible for designing, developing, and maintaining software solutions that leverage …

Added Nov 5, 2026

Save job

RTX

Senior Principal Software Engineer - Embedded Communications (Onsite)

Cedar Rapids, Iowa, United States

View job

Save job

About this opportunity

Original employer description

Date Posted:

2026-08-17



Country:

United States of America



Location:

US-IA-CEDAR RAPIDS-137 ~ 855 35Th St NE ~ BLDG 137



Position Role Type:

Onsite



U.S. Citizen, U.S. Person, or Immigration Status Requirements:

The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance



Security Clearance Type:

DoD Clearance: Secret



Security Clearance Status:

Active and existing security clearance required after day 1

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

At Collins Aerospace, we don’t just build technology—we engineer mission success. Our Communication Systems teams are on the front lines of innovation, designing and delivering cutting-edge embedded communication solutions that keep military forces around the world safe, connected, and informed—no matter the environment.

We’re looking for a Senior Principal Software Engineer who’s ready to make an impact. In this role, you won’t just write code, you’ll help shape the future of secure communications. From software-defined radios and advanced networking to state-of-the-art cryptographic systems and open system platform software, your work will drive critical real-time communications that enable pilots and soldiers to securely share voice, video, and data when it matters most.

Here, you’ll collaborate with top-tier engineers and industry experts, leveraging advanced technologies to push the boundaries of what’s possible. Whether you're building trusted systems or breaking ground on new innovations, your contributions will directly support mission-critical operations across the globe.

If you're passionate about solving complex challenges, excited by the idea of working on systems that truly matter and driven to grow alongside some of the brightest minds in the field—we want you on our team.

What You Will Do:

YOU will architect, design, and develop cutting-edge embedded software and communication products in C/C++ and Rust
YOU will drive project success by planning and leading efforts for requirements, implementation, test development, and certification
YOU will develop innovative tools and automated testing infrastructures that support Continuous Integration and Continuous Development processes
YOU will serve as a technical lead, mentoring and guiding software developers to ensure successful execution and professional growth
YOU will lead large initiatives and organize tasks for team members, ensuring timely delivery
YOU will impact our business and our customers: supporting cost, schedule, and technical performance

What You Will Learn:

YOU will gain technical leadership experience and mentorship opportunities to develop talent for yourself and others
YOU will collaborate with fellow subject matter experts and industry specialists, obtaining hands-on experience with new and innovative technologies
YOU will engage with a multidisciplinary team to develop a cross-functional skillset
YOU will grow into a subject matter expert on your projects and programs

Qualifications You Must Have:

Experience in leading efforts across the full software development lifecycle
Experience with software for communications or similar products
7 years of experience with embedded software development
7 years of experience in Python and C/C++
Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience

Qualifications We Prefer:

Active U.S. Department of Defense Clearance
Proficient with Linux development environments
Proficient with Git and other version control systems
Knowledgeable in networking and communications protocols
Experience with Rust programming language
Experience with multithreading and containerization
Experience with communications systems or software-defined radios
Experience developing open systems architecture and microservices for containerized environments
Experience applying patterns, data structures, and algorithms to solve problems in software systems
Comfortable working in Agile/Scrum environments
Ability to investigate complex problems to root cause and champion the creation and implementation of solutions
Ability to architect, design, and implement solutions to complex problems without guidance

What We Offer:

Medical, dental, and vision insurance
Three weeks of vacation for newly hired employees
Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
Tuition reimbursement program
Student Loan Repayment Program
Life insurance and disability coverage
Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
Birth, adoption, parental leave benefits
Ovia Health, fertility, and family planning
Adoption Assistance         
Autism Benefit
Employee Assistance Plan, including up to 10 free counseling sessions
Healthy You Incentives, wellness rewards program
Doctor on Demand, virtual doctor visits
Bright Horizons, child and elder care services
Teladoc Medical Experts, second opinion program
And more!

Relocation Eligibility

Eligible for relocation

Learn More & Apply Now!

Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today.

* Please consider the following role type definitions as you apply for this role.

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other – propel us all higher, again and again.

Apply now and be part of the team that’s redefining aerospace, every day.

Employee Referral Eligible

#MISENG

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 132,400 USD - 251,600 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

Privacy Policy and Terms:

Click on this link to read the Policy and Terms

Why this result? · Employer labels

Search phrase in title

Location reference: GeoNames (CC BY 4.0), normalized by Referizz.