Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Sr Principal Software Engineer (L7 Security)

Palo Alto Networks

Job Summary

In the Layer-7 Security Software team, we are responsible for at least one, often two to three headline features in every PANOS release. Our code reaches many product lines in the company, and is the critical part of delivering the highest revenue licenses the company offers. Our core Application Identification and Content Inspection Engine runs on hardware, virtualized, container and cloud‑delivered firewalls. Any features that require inspection or extraction of layer‑7 network payload depends on our engine. We are also developing the latest cloud‑delivered Layer‑7 security infrastructure. We design and develop key innovative security features such as the industry first machine‑learning powered NGFW, credential phishing prevention, URL filtering, cloud‑delivered data‑leak protection (DLP), and many more exciting features.

Key Responsibilities

  • Innovate, design, develop and improve the next‑generation firewall in terms of functionality and performance, working on GlobalProtect
  • Own and be responsible for critical components in the next‑generation firewall system
  • Deliver features and improvements in critical components in high quality and performance
  • As an expert on networking and security, work closely with team members and cross‑team to design and architect innovative solutions

Qualifications

  • B.S. degree in Computer Science, similar technical discipline or equivalent practical experience; graduate degree (M.S. or Ph.D.) in Computer Science or similar technical discipline is preferred or equivalent military experience required
  • Proficient in C programming under Linux development environment
  • Experience with Go programming
  • Experience with and web server backend development
  • Experience with networking development, eg. TCP/UDP, socket programming
  • Experience with Redis, SQL or NoSQL database
  • Experience with multi‑threaded programming and large‑scale, distributed, and/or high‑performance software design and architecture
  • Teammate who brings a can‑do attitude to a dynamic working environment and is comfortable learning new technologies and platforms
  • Verbal and written communication skills to work with multi‑functional groups

Compensation Disclosure

The compensation offered for this position will depend on qualifications, experience, and work location. For candidates who receive an offer at the posted level, the starting base salary is expected to be the annual range listed below. The offered compensation may also include restricted stock units and a bonus. A description of our employee benefits may be found here.

170,000.00 - 277,000.00/yr

Our Commitment

We’re trailblazers that dream big, take risks, and challenge cybersecurity’s status quo. It’s simple: we can’t accomplish our mission without diverse teams innovating, together.

Equal Opportunity Employer Statement

Palo Alto Networks is an equal opportunity employer. We celebrate diversity in our workplace, and all qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or other legally protected characteristics.

Privacy Statement

All your information will be kept confidential according to EEO guidelines.

Immigration Sponsorship

Is role eligible for Immigration Sponsorship?: Yes

#J-18808-Ljbffr

Vacancy posted 7 hours ago
Similar jobs that could be interesting for youBased on the Sr Principal Software Engineer (L7 Security) in Santa Clara, CA vacancy
  • $170k - $277k

     ...precision that drives great outcomes.Job SummaryIn the Layer-7 Security Software team, we are responsible for at least one, often two to three...  .... Our core Application Identification and Content Inspection Engine runs on Hardware, Virtualized, Container and Cloud-delivered... 
    Senior
    Full time
    Work at office

    Palo Alto Networks

    Santa Clara, CA
    2 days ago
  • $170k - $277k

     ...great outcomes.Job SummaryThe TeamEngineering - Our engineering team is at the core of our products and connected...  ...our everyday lives that are only enabled by a secure digital environment.Job SummaryAs a Principal Software Engineer within the Engineering team, you will drive... 
    Senior
    Full time
    Work at office

    Palo Alto Networks

    Santa Clara, CA
    7 hours ago
  • $170k - $277k

     ...SummaryThe TeamEngineering - Our engineering team is at the core of our...  ...lives that are only enabled by a secure digital environment.Job...  ...support throughout the entire software development cycle. This role requires...  ...protocols such as TLS and L4-L7 protocols.Experience working... 
    Senior
    Full time
    Work at office

    Palo Alto Networks

    Santa Clara, CA
    3 days ago
  •  ...Responsibilities Innovate, design, and develop new security features in our next-generation...  ...~12+ years of professional software engineering experience, including significant time...  ...security protocols such as TLS and L4-L7 protocols ~ Experience working with... 
    Senior

    Jobtailor

    Santa Clara, CA
    4 days ago
  • $170k - $277k

     ....Job SummaryThe TeamEngineering - Our engineering team is at the core of our products and...  ...lives that are only enabled by a secure digital environment.Job SummaryThe Layer...  ...Layer 7 security team is seeking a Senior Principal Software Engineer to lead the design and... 
    Senior
    Full time
    Work at office
    Worldwide

    Palo Alto Networks

    San Jose, CA
    3 days ago
  • $170k - $277k

     ...Job SummaryThe TeamEngineering - Our engineering team is at the core of our products and...  ...for directions.Job SummaryAs a Sr. Principal Software Engineer in the Engineering team, you...  ...customer problems and deliver high-impact security solutions.Contribute to all phases of... 
    Senior
    Full time
    Work at office

    Palo Alto Networks

    Santa Clara, CA
    1 day ago
  • $154k - $286k

     ...impact on the world of technology.This position is for an R&D engineer, who will be involved in developing a multi-threaded and distributed...  ...for designing, developing, troubleshooting and debugging software programs in the areas of physical synthesis. Work closely with... 
    Senior

    Cadence Inc

    San Jose, CA
    2 days ago
  • $147k - $237.5k

     ...Job Summary We are seeking a Principal Software Engineer to join our Machine Identity Security team, focused on backend systems that power the control plane of our platform. In this role, you will lead the design and evolution of scalable backend services, APIs, and... 
    Senior

    Jobleads-US

    Santa Clara, CA
    2 days ago
  • $154k - $220k

     ...more agile, efficient, resilient, and secure. As an AI-forward enterprise, we are...  ....RoleWe are looking for a Sr. Staff Software Development Engineer-AI Security to join our team. This is...  ...experience with gRPC, Protobufs, and L4-L7 networking protocols, including TCP... 
    Senior
    Full time
    Work at office
    Local area

    Zscaler

    San Jose, CA
    3 days ago
  •  ...Summary Your Career We are looking for a visionary Senior Principal Engineer/Architect to serve as the technical authority for our...  ...identifying friction points, coupled with a deep empathy for internal software developers as your primary customers. The driving curiosity... 
    Senior
    Full time
    Work at office
    Visa sponsorship
    Work visa
    Flexible hours

    Palo Alto Networks, Inc.

    Santa Clara, CA
    3 days ago
  • DescriptionPrincipal Engineer Security Solutions EngineeringLocation: Campell, CAArteris connects...  ...shapes tomorrow.What You’ll Do as a Principal Engineer of Security Solutions...  ...DeliveryContribute strategy and implementation of software products, including correctness,... 
    Work experience placement
    Remote work
    Night shift

    ARTERIS IP

    Campbell, CA
    1 day ago
  • $147k - $237.5k

     ...outcomes.Job SummaryThe ADEM engineering team is the engine of...  ...we create them. As a Principal Engineer focused on...  ..." problems in scale, security, and performance at...  ...is seeking a Principal Software Engineer to serve as a...  ...networking stacks (L3-L7), and system performance... 
    Permanent employment
    Full time
    Work at office
    Local area

    Palo Alto Networks

    Santa Clara, CA
    3 days ago
  • $135.2k - $306.4k

     ...of core components for data planes. We are hoping to enhance engineering efficiency by concentrating our expertise on building low level...  ...envision, collaborate with executives for investment and drive the software design and development for new major data-plane components of... 
    Senior
    Temporary work
    Work experience placement
    Worldwide
    Flexible hours

    Oracle Corporation

    Santa Clara, CA
    2 days ago
  • $177.82k - $266.4k

     ...major cloud data center and AI cluster. We are seeking a Senior Principal Engineer to join the Optics & Connectivity Product Architecture team,...  ...should be very comfortable in creating highly-functional software prototypes based on high-level architectural specifications,... 
    Senior
    Permanent employment
    Full time
    Internship
    Work from home

    Marvell

    Santa Clara, CA
    1 day ago
  •  ...Celestica Inc. in San Jose, CA is seeking a Senior Principal Software Engineer to spearhead AI-enabled test infrastructure, CI/CD automation, and developer platforms. You will blend hands-on architecture with Agile leadership to drive GenAI integration into engineering... 
    Senior

    Jobleads-US

    San Jose, CA
    1 day ago
  •  ...management and data protection solutions at the heart of digital security. Business and governments rely on us to bring trust to the...  ...secure.Position Summary San Jose, HybridThales is looking for a Sr Engineer, Advanced Security Response Team (ASRT), who will work with a... 
    Senior
    Full time
    Local area
    Remote work
    Day shift
    Afternoon shift

    Thales Group

    San Jose, CA
    2 days ago
  • $177.82k - $266.4k

     ...leading networking and compute silicon.Our engineers work deeply embedded with customers,...  ...on technical leadership across hardware, software, and system integration. This close engagement...  ....What We're Looking ForAs a Senior Principal Application Engineer, you will serve as... 
    Senior
    Permanent employment
    Internship
    Work from home

    Marvell

    Santa Clara, CA
    2 days ago
  • $135.2k - $306.4k

     ...contributing to Linux kernel and working on innovative projects across multiple kernel subsystems, including networking, storage, security, performance optimization, virtual memory management, architecture enablement, and live patching technologies.Only Oracle brings together... 
    Senior
    Temporary work
    Flexible hours

    Oracle Corporation

    Santa Clara, CA
    4 days ago
  • $159k - $200k

     ...life. Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of...  ...content team, you have the opportunity to work on our IPS content engine and other advanced threat prevention products, and collaborate... 
    Senior
    Full time
    Casual work
    Work at office

    Palo Alto Networks

    Santa Clara, CA
    1 day ago
  • $210k - $275k

     ...Sr. Staff/Principal Software Engineer - SONiC - SAI About Eridu Eridu is a Silicon Valley-based hardware startup pioneering infrastructure solutions that accelerate AI data centers to deliver Faster AI. Today’s AI performance is frequently limited by communication... 
    Senior

    Eridu Corporation

    Saratoga, CA
    7 hours ago
  • Bachelor's or Master's degree in Computer science, Software Engineering, or related field. 10+ years of experience in Android mobile app development...  ...data binding). 3 + years' experience with AWS services and secure communication protocols (BLE, Wi-Fi, OAuth). Experience... 
    Full time

    Boston Scientific

    San Jose, CA
    1 day ago
  • $170k - $277k

     ...great outcomes. Job Summary We are seeking a Senior Principal Software Engineer who is first and foremost a software craftsman with a passion...  .... Architect, design, and implement resilient, secure, scalable, and highly available infrastructure and platform... 
    Senior
    Full time
    Work at office
    Visa sponsorship
    Work visa

    Palo Alto Networks, Inc.

    Santa Clara, CA
    3 days ago
  •  ...Select how often (in days) to receive an alert: Senior Principal Software Engineer Date: Jul 30, 2026 Location: San Jose, NH, US Summary We are seeking a visionary Senior Principal Software Engineer / Technical Staff Member to spearhead the evolution of... 
    Senior
    Temporary work
    For contractors
    Work at office
    Local area
    Worldwide
    Shift work

    Jobleads-US

    San Jose, CA
    1 day ago
  •  ...set of core libraries to test various cloud components. Qualifications ~5+ years proven records on infrastructure level software development experience ~2+ years Clojure development experience. ~ Comfortable working in open source communities ~ Linux (... 
    Full time

    Integrated Resources Inc.

    Santa Clara, CA
    1 day ago
  •  ...ROLE:AMD is building the next generation of compiler and software infrastructure to accelerate Large Language Models (...  ...accelerator architectures.THE PERSON:We are looking for a Principal Software Development Engineer to lead technical development in compiler technology,... 

    AMD

    San Jose, CA
    7 hours ago
  • $272k - $431.25k

     ...architecture and hands-on delivery across system software, drivers, and CUDA to make profiling...  ...insights.Set technical direction for an engineering team; mentor engineers, drive technical...  ...and integration within platform security and permissions models.Your base salary... 
    Full time

    Nvidia

    Santa Clara, CA
    1 day ago
  • $200k

     ...Evaluator products are deployed in mission-critical environments where accuracy, governance, and scale are non-negotiable. The Principal Software Engineer role exists to help us continue raising the engineering bar on those products — and to lead the way in how we build... 
    Work at office
    Shift work

    eGain Communications

    Sunnyvale, CA
    7 hours ago
  • $272k - $431.25k

    We're looking for a Principal Software Engineer to join our CSP Engagements team as the technical focal point for GPU firmware and GPU system software...  .../software — covering manageability, observability, security requirements (e.g., multi-tenancy isolation, secure boot,... 
    Full time
    Remote work

    Nvidia

    Santa Clara, CA
    3 days ago
  •  ...moves the world forward.THE ROLE: We are seeking a highly motivated and technically exceptional PMTS AI/ML Compiler Engineer to join AMD's AI Software organization. In this role, you will drive compiler and performance optimizations that enable state-of-the-art AI training... 

    AMD

    San Jose, CA
    3 days ago
  • $190k - $300k

     ...transformation of technology. We are at the forefront of software and hardware innovation, pushing the boundaries of what is...  ...but open to other locations within the US/Canada.The role: Principal Software Engineer, SDK & Lowering StackWhat you will do:Help architect and develop... 
    Work experience placement

    d-Matrix

    Santa Clara, CA
    1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Sr Principal Software Engineer (L7 Security). Be the first to apply!