Principal Software Engineer Jobs

ServiceNow is hiring a Principal Software Engineer to lead design and implementation of reusable UI components and mentor engineering teams for scalable enterprise cloud applications.

Western Digital is hiring a Principal Software Engineer to lead customer-facing firmware engineering for HDD products, delivering technical solutions and ensuring customer success across product lifecycles.

Lead development and integration of cutting-edge full-stack and cloud software for mission-critical RF, electronic warfare, and cybersecurity systems as a Principal Software Engineer.

Lead architecture, technical strategy, and engineering delivery for student-facing systems at WGU to drive scalable, reliable solutions that improve student outcomes.

Lead design and delivery of high-volume Java microservices at PNC, driving complex enterprise solutions across distributed systems and mentoring engineering teams.

Senior technical leader sought to shape architecture, drive system-wide engineering initiatives, and elevate platform reliability and scalability at Ro, a rapidly growing telehealth company.

Experienced Principal Software Engineer needed to lead and implement scalable full-stack solutions (TypeScript/Angular, GraphQL, Java/Python) while mentoring team members and shaping product functionality.

Lead the architecture and implementation of large-scale cloud security services at Palo Alto Networks, driving technical direction and delivering highly scalable, reliable solutions.

Palo Alto Networks is hiring a Principal Software Engineer to lead backend Java development and operationalize ML-driven cloud DLP services for high-scale distributed systems.

Lead backend platform development for Cortex, building scalable, production-grade services with Go/Python and cloud-native architectures to protect customers at scale.

Lead and mentor engineering teams to design, develop, and deploy advanced defense and cyber software solutions across cloud and embedded environments.

Inclusive & Diverse

Rise from Within

Mission Driven

Diversity of Opinions

Work/Life Harmony

Growth & Learning

Transparent & Candid

Customer-Centric

Snacks

Onsite Gym

Family Coverage (Insurance)

Medical Insurance

Dental Insurance

Vision Insurance

Mental Health Resources

Life insurance

Disability Insurance

Health Savings Account (HSA)

Flexible Spending Account (FSA)

Learning & Development

Paid Time-Off

401K Matching

Maternity Leave

Paternity Leave

Lead architecture and workload-optimization efforts for datacenter and cloud software as a principal engineer on Intel's Software and AI team, working closely with customers and product organizations.

Experienced, hands-on Principal Software Engineer needed to lead and build production-grade software powering Evolve Security’s cybersecurity solutions in a remote-friendly, startup environment.

Lead the design and delivery of GenAI-powered automations and agentic workflows that measure and drive Operational and Engineering Excellence across Sam’s Club engineering at enterprise scale.

Principal Software Engineer in Warner Robins to design, integrate, and test embedded C/C++ software for AN/ALR-56 series support stations within Northrop Grumman's IMS organization.

Lead the design and delivery of crypto-core, PKI, key management, identity and agentic security services for ServiceNow's AI platform as a senior technical architect and hands-on engineer.

Lead the design and consolidation of identity, authentication, and authorization systems as Principal Software Engineer (Identity) to create a secure, scalable, and unified identity platform.

Vision Insurance

Dental Insurance

Performance Bonus

Paid Holidays

Lead architecture and build high-scale APIs and platform services at Gopuff to power millions of customer experiences and partner integrations.

United Field Services is hiring a Senior Software Architect to define and own the platform’s architecture, eliminate conflicting logic, and lead the system redesign for stability, scalability, and AI readiness.

Northrop Grumman is hiring a Principal Software Engineer to lead DevOps and cloud infrastructure efforts supporting secure, mission-critical systems in Oklahoma City.

Inclusive & Diverse

Customer-Centric

Mission Driven

Fast-Paced

Growth & Learning

Transparent & Candid

Diversity of Opinions

Work/Life Harmony

Medical Insurance

Dental Insurance

Vision Insurance

Mental Health Resources

Health Savings Account (HSA)

Flexible Spending Account (FSA)

Learning & Development

Fitness Stipend

401K Matching

Equity

Life insurance

Disability Insurance

WFH Reimbursements

Flex-Friendly

Paid Time-Off

Maternity Leave

Paternity Leave

Paid Holidays

Paid Volunteer Time

Sabbatical

Zillow Group is hiring a Principal Software Development Engineer to lead architecture and delivery of scalable backend services for its mortgage platform and mentor engineering teams.

Lead architecture and delivery of large-scale, AI-driven security systems as a Principal Software Engineer at a fast-paced, remote-first company.

Lead the architecture and implementation of Docker AI Cloud’s distributed, multi-cloud control and data plane services as a Principal Software Engineer.

ServiceNow is hiring a Principal Software Engineer to architect and deliver scalable, AI-enabled platform components focused on endpoint agents, microservices, and modern UIs.

DIRECTV is seeking a Principal Software Engineer (Level 2) to architect and lead delivery of high-performance, reusable front-end solutions across digital platforms.

Lead the design and delivery of cloud-native NextGen Firewall services at a market-leading cybersecurity company in Santa Clara.

Lead validation and automation of real-world customer use cases for Palo Alto Networks' NGFW and cloud security services as a Principal Software Engineer on the Customer Profile Test Engineering team.

Lead engineering for ChargePilot edge devices and cloud infrastructure, driving architecture, reliability, and development velocity across North America.

Lead cross-functional software engineering governance for Boeing AvionX to convert strategic objectives into certified, on-time software deliveries across multiple product lines.

Lead the design and implementation of scalable cloud-native security features for Palo Alto Networks' Prisma Access SASE platform as a Principal Engineer based in Santa Clara.

Lead architecture and hands-on development of scalable user-facing systems while mentoring engineering teams at a fast-moving, remote-friendly U.S. company.

Senior technical leader needed to design scalable mobile and backend systems, mentor engineers, and help RapidAI deliver mission-critical clinical imaging software.

Experienced test engineering leader needed to design and scale automation frameworks for Prisma Access, ensuring robust cloud orchestration, endpoint security, and real-world deployment validation.

Lead the design and delivery of AI-enabled platform systems and internal automations at a remote-first proptech company, driving measurable operational impact across the business.

Western Digital is hiring a Principal/Staff Engineer in Irvine to architect and deliver scalable manufacturing software, lead technical decisions, and mentor engineering teams.

An experienced Principal Software Engineer is needed to lead development and integration of cloud-enabled, full-stack software for RF, electronic warfare, and cybersecurity systems while mentoring a team and supporting field testing.

Experienced systems engineer needed to design and implement Layer-7 security features for next-generation firewalls at a market-leading cybersecurity company.

Lead the architecture and delivery of complex engineering applications at Airbus Americas, driving technical decisions, mentoring teams, and translating business needs into scalable software solutions.

ThreeV is hiring a Principal Software Engineer to lead cloud-native data engineering and architecture for its AI-driven asset intelligence platform, focusing on scalable, low-latency production systems.

Palo Alto Networks is hiring a Principal Software Engineer to lead design and implementation of scalable, cloud-native SASE features for the Prisma SASE platform.

Lead strategic engineering efforts at WGU to architect and deliver scalable student-focused applications while mentoring teams and advising executives on technology direction.

Lead ML research and engineering to design and deploy next-generation planning models for Zoox’s autonomous vehicles, driving both immediate milestones and long-term technical strategy.

Lead development of scalable, secure robotic fleet management software as a Principal Enterprise Software Engineer working remotely across the US.

Lead mobile architecture and strategy for a high-growth platform as Principal Software Engineer, Mobile, driving React Native development and mentoring senior engineers across iOS and Android.

Lead engineering efforts to design and scale ProRata Attribution systems—covering content understanding, distributed serving, knowledge systems, and agentic backend workflows—at ProRataAI's Bellevue office.