Know ATS Score
CV/Résumé Score
  • Expertini Resume Scoring: Our Semantic Matching Algorithm evaluates your CV/Résumé before you apply for this job role: New Products Principal Engineer.
United States Jobs Expertini

Urgent! New Products Principal Engineer Job Opening In San Francisco – Now Hiring Mozilla

New Products Principal Engineer



Job description

New Products Principal Engineer

at Mozilla Corporation Team: New Products Locations: Remote Canada, Remote US

Apply Now

To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu.

To learn more about our Hiring Range System, please click this


Why Mozilla?


Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years.

We make pioneering brands like Firefox, the privacy-minded web browser.

Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies.

Our work focuses on diverse areas including AI, social media, security and more.

And we’re doing this while never losing our focus on our core mission – to make the internet better for people.


The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation.

This means we aren’t beholden to any shareholders — only to our mission.

Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms.


About This Team and Role:


The New Products team at Mozilla is building a browser-automation stack for AI agents.

Our mission is to make it effortless for developers to integrate fast, reliable web interactions into their agentic applications.


We are seeking a founding Principal Software Engineer who will set the technical vision, architect the platform, and spend the majority of their time writing production code alongside the team.

You will guide a small, fast-moving group of engineers, and personally deliver the core libraries, services, and tooling that empower the next generation of intelligent web automation.

If you thrive on rolling up your sleeves, love shipping code that developers adore, and enjoy shaping green-field products from the ground up, we’d love to meet you.


What you’ll do:

  • Technical Strategy & Architecture: Define and communicate the long-term technical roadmap for our browser-automation stack, balancing rapid iteration with long-term maintainability and scalability.

  • Hands-On Development: Write elegant, high-performance code daily in languages such as Go, Ruby on Rails, and TypeScript.

    Rapidly prototype, benchmark, and ship features to production.

  • System Design & Infrastructure: Design distributed, fault-tolerant services and developer-facing SDKs/APIs. Own cloud infrastructure, CI/CD pipelines, security, and observability.

  • Team Leadership & Mentorship: Grow, mentor, and inspire a world-class engineering team.

    Conduct thoughtful code reviews, establish the engineering culture, and foster a team of technical excellence and psychological safety.

  • Collaboration & Product Direction: Work closely with product, design, and developer-relations to ensure technical choices align with developer needs and business goals.

    Turn community feedback into concrete improvements.

  • Stakeholder Communication: Translate complex technical trade-offs into clear language for executives, partners, and cross-functional teams.

    Provide regular updates on progress, risks, and mitigation strategies.
  • What you’ll bring:

  • 10+ years of software engineering experience building high-performance developer tools, SDKs, or distributed systems, with at least 3 years leading technical teams or large projects.

  • Expert-level proficiency in at least two of: Go, Ruby (Rails), Python or TypeScript/JavaScript..

  • Proven track record architecting and shipping complex, high-throughput systems in production environments (cloud, edge, or hybrid).

  • Deep understanding of browser internals, automation frameworks (e.g., Playwright, Puppeteer, Selenium), and secure web interaction paradigms.

  • Hands-on experience and opinions about modern AI/ML workflows or agent frameworks such as LangChain, LlamaIndex, or custom in-house systems.

  • Strong focus on code quality, testability, performance, and operational excellence; familiarity with TDD, automated testing, and observability stacks.

  • Exceptional communication skills with the ability to collaborate across disciplines and levels, from junior engineers to executive leadership.
  • Nice to have:

  • Prior experience as a founding or early-stage CTO, Principal Engineer, or Staff+ engineer at a fast-growing startup or open-source project.

  • Experience building to production systems in browser automation, AI tooling, or developer infrastructure.

  • Knowledge of privacy-preserving technologies, secure computation, or web standards bodies.

  • Experience optimizing build systems, WebAssembly pipelines, or cross-language bindings.

  • Public speaking or writing history (talks, blogs, whitepapers) explaining complex technical topics to diverse audiences.
  • What you’ll get:

  • Generous performance-based bonus plans to all eligible employees – we share in our success as one team

  • Rich medical, dental, and vision coverage

  • Generous retirement contributions with 100% immediate vesting (regardless of whether

  • you contribute)

  • Quarterly all-company wellness days where everyone takes a pause together

  • Country-specific holidays plus a day off for your birthday

  • One-time home-office stipend

  • Annual professional development budget

  • Quarterly well-being stipend

  • Considerable paid parental leave

  • Employee referral bonus program

  • Other benefits (life/AD&D, disability, EAP, etc.

    – varies by country)

  • Required Skill Profession

    Engineers



    Your Complete Job Search Toolkit

    ✨ Smart • Intelligent • Private • Secure

    Start Using Our Tools

    Join thousands of professionals who've advanced their careers with our platform

    Rate or Report This Job
    If you feel this job is inaccurate or spam kindly report to us using below form.
    Please Note: This is NOT a job application form.


      Unlock Your New Products Potential: Insight & Career Growth Guide


    • Real-time New Products Jobs Trends in San Francisco, United States (Graphical Representation)

      Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph below. This graph displays the job market trends for New Products in San Francisco, United States using a bar chart to represent the number of jobs available and a trend line to illustrate the trend over time. Specifically, the graph shows 36182 jobs in United States and 367 jobs in San Francisco. This comprehensive analysis highlights market share and opportunities for professionals in New Products roles. These dynamic trends provide a better understanding of the job market landscape in these regions.

    • Are You Looking for New Products Principal Engineer Job?

      Great news! is currently hiring and seeking a New Products Principal Engineer to join their team. Feel free to download the job details.

      Wait no longer! Are you also interested in exploring similar jobs? Search now: .

    • The Work Culture

      An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at Mozilla adheres to the cultural norms as outlined by Expertini.

      The fundamental ethical values are:
      • 1. Independence
      • 2. Loyalty
      • 3. Impartiality
      • 4. Integrity
      • 5. Accountability
      • 6. Respect for human rights
      • 7. Obeying United States laws and regulations
    • What Is the Average Salary Range for New Products Principal Engineer Positions?

      The average salary range for a varies, but the pay scale is rated "Standard" in San Francisco. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.

    • What Are the Key Qualifications for New Products Principal Engineer?

      Key qualifications for New Products Principal Engineer typically include Engineers and a list of qualifications and expertise as mentioned in the job specification. Be sure to check the specific job listing for detailed requirements and qualifications.

    • How Can I Improve My Chances of Getting Hired for New Products Principal Engineer?

      To improve your chances of getting hired for New Products Principal Engineer, consider enhancing your skills. Check your CV/Résumé Score with our free Tool. We have an in-built Resume Scoring tool that gives you the matching score for each job based on your CV/Résumé once it is uploaded. This can help you align your CV/Résumé according to the job requirements and enhance your skills if needed.

    • Interview Tips for New Products Principal Engineer Job Success
      Mozilla interview tips for New Products Principal Engineer

      Here are some tips to help you prepare for and ace your job interview:

      Before the Interview:
      • Research: Learn about the Mozilla's mission, values, products, and the specific job requirements and get further information about
      • Other Openings
      • Practice: Prepare answers to common interview questions and rehearse using the STAR method (Situation, Task, Action, Result) to showcase your skills and experiences.
      • Dress Professionally: Choose attire appropriate for the company culture.
      • Prepare Questions: Show your interest by having thoughtful questions for the interviewer.
      • Plan Your Commute: Allow ample time to arrive on time and avoid feeling rushed.
      During the Interview:
      • Be Punctual: Arrive on time to demonstrate professionalism and respect.
      • Make a Great First Impression: Greet the interviewer with a handshake, smile, and eye contact.
      • Confidence and Enthusiasm: Project a positive attitude and show your genuine interest in the opportunity.
      • Answer Thoughtfully: Listen carefully, take a moment to formulate clear and concise responses. Highlight relevant skills and experiences using the STAR method.
      • Ask Prepared Questions: Demonstrate curiosity and engagement with the role and company.
      • Follow Up: Send a thank-you email to the interviewer within 24 hours.
      Additional Tips:
      • Be Yourself: Let your personality shine through while maintaining professionalism.
      • Be Honest: Don't exaggerate your skills or experience.
      • Be Positive: Focus on your strengths and accomplishments.
      • Body Language: Maintain good posture, avoid fidgeting, and make eye contact.
      • Turn Off Phone: Avoid distractions during the interview.
      Final Thought:

      To prepare for your New Products Principal Engineer interview at Mozilla, research the company, understand the job requirements, and practice common interview questions.

      Highlight your leadership skills, achievements, and strategic thinking abilities. Be prepared to discuss your experience with HR, including your approach to meeting targets as a team player. Additionally, review the Mozilla's products or services and be prepared to discuss how you can contribute to their success.

      By following these tips, you can increase your chances of making a positive impression and landing the job!

    • How to Set Up Job Alerts for New Products Principal Engineer Positions

      Setting up job alerts for New Products Principal Engineer is easy with United States Jobs Expertini. Simply visit our job alerts page here, enter your preferred job title and location, and choose how often you want to receive notifications. You'll get the latest job openings sent directly to your email for FREE!