Mozilla

Part-Time Social Media Content Creator [Independent Contractor Opportunity]: Mozilla Foundation Mozilla has been fighting for an open internet since before it was cool. We're looking for a part-time content creator to help us tell that story on Social Media and make people care about why this work is more important than ever before. We want someone who understands internet culture, gets how ideas spread online, and can turn the incredible work we fund (and Mozilla’s mission), into educational and entertaining content people want to share. Please note: This is an independent contractor opportunity and is not an employment position with Mozilla Foundation. What you'll do: Create and publish Social Media content (e.g. Instagram Reels, Stories) that builds awareness and community. You'll work closely with our Social Media Manager to surface the people, moments, and ideas that will make Mozilla worth following. What we're looking for: - You have a point of view and know how to express it - You love to create Reels and are a pro at editing - You’re creative and full of ideas for social - You’re comfortable in front of the camera - You are skilled at shooting and editing short form video content - You understand how the algorithm works and how to create content that performs - You care about building an internet that works for all! Engagement details: - Engagement type: Independent Contractor (Statement of Work) - Commitment: Approximately 15–20 hours per week - Location: Remote Canada, Remote USA - Duration: To be determined by mutual agreement Pay Rate: - Hourly contractor engagement at US$50–60/hour , with an anticipated commitment of approximately 15–20 hours per week , not to exceed the approved monthly budget unless otherwise agreed in writing. How to apply: Please ensure your submission includes the following:

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: We're looking for an Executive Assistant to support the CFO and VP of Finance. This is a high-trust role at the center of Mozilla's Finance organization. You'll be the operational right hand to two senior leaders, keeping their time, priorities, and communications running smoothly while handling sensitive financial and business information with complete discretion. You'll work regularly with executive leadership (and their EAs), Board members, and external partners, so poise, judgment, and a proactive mindset matter as much as strong execution. What you'll do: - Act as a trusted partner and extension of the CFO and VP of Finance, providing proactive, high-level support that frees them to focus on Mozilla's most important financial and strategic priorities. - Own complex, fast-moving calendars across both leaders: prioritize and sequence meetings, resolve conflicts, protect focus time, and align scheduling with Finance deliverables, Board cycles, and enterprise priorities. - Run the operating rhythm of the CFO's office: plan and facilitate Finance and leadership meetings, prepare agendas and materials, capture decisions and action items, and drive follow-through. - Prepare and refine executive-level presentations, reports, briefing materials, and correspondence for leadership meetings, business reviews, and external stakeholders. - Coordinate domestic and international travel and manage expense reports. - Serve as a key point of contact between the executives, their teams, and internal and external partners, ensuring timely, professional communication and follow-up. - Support Audit committee, Investment Committee and Board preparation, including logistics, materials, and minutes as needed. - Plan log

Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At MZLA, the team behind Thunderbird, we build privacy-respecting communication and productivity tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. We are a small but growing company of 60+ people distributed across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, paid services, and new product experiences that help people and organizations work more effectively without giving up control to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s apps freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about MZLA and Mozilla: MZLA Technologies Corporation is the nonprofit-owned company behind Thunderbird and part of the Mozilla family. MZLA is separate from Mozilla Corporation and has its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net The opportunity Thunderbird is growing beyond our free desktop and mobile applications, and we’re looking for a Senior Privacy & Compliance Program Manager to help build and strengthen the privacy, compliance, data governance, and vendor review practices that support MZLA’s products and operations. Privacy and compliance are central to how we build and maintain user trust, particularly for a global user base with a significant presence in Europe. As MZLA expands its products and services, this role will help ensure that data is collected, used, shared, retained, and governed responsibly, in line with Thunderbird’s values and user trust commitments. You will help translate privacy, security, and compliance requirements into practical processes that fit our products and services, infrastructure, support workflows, vendor ecosystem, and operating model. MZLA is a small, growing organization, and the right person will be a hands-on program manager who can create structure without overcomplicating the work. You will work across legal, engineering, product, support, finance, operations, and other Mozilla-wide partners to clarify ownership, track open items, identify when issues need escalation, and keep cross-functional privacy and compliance work moving. This role requires strong judgment, excellent follow-through, and the ability to operate across legal, technical, operational, and leadership contexts. You will help ensure privacy and compliance work is well coordinated, appropriately documented, and grounded in practical processes that support user trust and responsible product development. Th

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. What you’ll do: - Advance Firefox's security architecture and cryptography stack: Contribute to improvements in Firefox's core security systems, with a focus on cryptographic protocols, WebPKI, and security-sensitive web APIs. Help implement and maintain security features that support the evolution of public key infrastructure on the web. - Design and implement web platform security features: Develop and ship web platform features in collaboration with teammates and the broader web community. Contribute to standards-based, secure, and interoperable implementations across Firefox. - Improve browser reliability, performance, and resource efficiency: Investigate and resolve issues impacting stability, correctness, and performance. Analyze and improve memory usage and efficiency within a complex, multi-threaded browser environment. - Collaborate on security initiatives: Partner with engineers across teams to identify, prioritize, and address security issues. Participate in debugging, root cause analysis, and implementation of effective long-term solutions. - Contribute to technical design and planning: Participate in technical discussions, design reviews, and project planning for security-related initiatives. Help evaluate tradeoffs and contribute to engineering decisions within your area of work. What you’ll bring: - Strong software engineering and security fundamentals: Experience in software engineering, with proficiency in C/C++ and a solid understanding of security principles, including cryptographic protocols and implementations. - Experience building and maintaining complex software systems: Ability to contribute to the design, implementation, testing, and maintenance of software in large-scale or security-sensitive environments.</s

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: The Firefox team is a community of engineers who care deeply about delivering the fastest, friendliest, most usable browser possible. We are responsible for making the things you see in the browser work securely, quickly, and well! Desktop Integrations is a cross-functional team that focuses on updates, installs and integrating Firefox with different OS platforms. As part of the Desktop Integrations team, you will be responsible for all things related to OS integration (particularly Windows and macOS) and helping us grow our user base. Our team is geographically distributed, and working in the open is the norm. We contribute to the code driving the Firefox browser on a number of desktop platforms. About the role: A Senior Software Engineer contributes to architectural discussions, and driving feature development within a team. At Mozilla, Senior Engineers are expected to work independently on scoped projects, collaborate closely with peers, and play a key role in delivering high-quality software that aligns with team goals. What you’ll do: - Contribute to the development and improvement of Firefox features related to installs, updates, and OS integrations. - Help implement enhancements to the Firefox installation and update experience, using data insights to guide development. - Tackle platform-specific challenges in low-level operating system integration on Windows and/or macOS. - Collaborate with your manager and teammates to scope and prioritize work in alignment with the team’s goals. - Participate in code reviews and contribute to technical discussions with peers. - Take ownership of complex bugs and lead efforts to improve the Firefox experience for hundreds of millions of users. </li

Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At MZLA, the team behind Thunderbird, we build privacy-respecting communication tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. Our small but growing distributed team includes 65+ people across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, and paid services to build independent, privacy-respecting alternatives to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s apps freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about MZLA and Mozilla: MZLA Technologies Corporation is the nonprofit-owned company behind Thunderbird and part of the Mozilla family. MZLA is separate from Mozilla Corporation and has its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net The opportunity As the Technical Content Marketing Specialist at MZLA, you'll help tell the story of Thunderbird's growing ecosystem of desktop, mobile, and web-based communication products. Working closely with the Marketing Manager and cross-functional partners across Product, Engineering, Design, and Community teams, you'll create and execute marketing programs that drive product awareness, user engagement, adoption, and retention. This is a hands-on role for someone who enjoys translating technology into compelling, user-focused stories and content. You'll create and publish content that helps users discover, understand, and get value from Thunderbird's products and services, while supporting launches, feature announcements, user education, and broader brand initiatives. What you’ll do - Execute day-to-day social media activities, including content scheduling, publishing, monitoring, engagement, and reporting. - Draft and publish blog posts, product announcements, release communications, marketing emails, newsletters, user education content, and other digital content that helps users understand and adopt Thunderbird products and services. - Support product launches, feature announcements, adoption campaigns, and promotional activities across multiple digital channels. - Monitor social media engagement, coordinating with internal teams when additional context or support is needed. - Maintain editorial and campaign calendars to ensure timely delivery of marketing activities. - Track and report on performance metrics, identifying trends and optimization opportunities. - Support email marketing and automation activities, including list management, campaign setup, and workflow maintenance. - Assist with customer surveys and feedback collection to inform marketing and product insights. - Coordinate with internal teams and external vendors to support campaign execution and content development. - Ensure marketing materials align with brand standards and messaging guidelines. - Support ad hoc marketing and communications projects as needed. What you bring - 3+ years of experience in marketing, communications, digital content, or a related role. - Experience marketing software, SaaS, technology products, developer tools, consumer applications, or other digital products to a global audience. - Demonstrated experience executing social media, email, and digital marketing activities across multiple channels. - Strong writing, copyediting, and proofreading skills with the ability to adapt messaging for different audiences and platforms. - Experience with social media management tools, email marketing platforms, content management systems, and digital marketing technologies. - Strong organizational skills and attention to detail, with the ability to manage multiple priorities and deadlines. - Ability to collaborate effectively across cross-functional teams in a distributed, asynchronous environment. - Proactive mindset with the ability to take ownership of work and follow projects through to completion. - Familiarity with marketing analytics and reporting tools. - Excellent verbal and written communication skills. - Ability to learn and responsibly use emerging technologies, including AI-enabled tools, to improve workflows. - Ability to support a global organization with understanding of different cultural dynamics and practices. Bonus points for - Familiarity with open-source communities or privacy-focused technology products. - Experience with survey and customer feedback platforms. - Basic experience using graphic design tools such as Canva or Adobe Creative Suite. - Familiarity with SEO and digital content optimization best practices. What success looks like You'll be successful in this role if you're equally comfortable learning about technical products, collaborating with product and engineering teams, and creating high-quality content that helps users understand why Thunderbird matters. Work environment This is a full-time, fully remote position. You’ll join a distributed team of Thunderbird staff, open-source community members, and contributors from around the world. We rely on clear communication, thoughtful documentation, and collaborative decision-making to work effectively across time zones and disciplines. You'll be part of the marketing team, working closely with product, engineering, and community colleagues in a collaborative, fast-paced environment. Compensation & benefits We benchmark our base salaries to local markets and target the 60th percentile of the peer market. The salary ranges for this role are: - US: $72,000 - $86,000 USD - Canada: $72,000 - 82,000 CAD We may consider candidates with strong skills but less than the required experience. Title, level and compensation will be determined based on qualifications and experience. In addition to competitive salaries, we offer a comprehensive benefits package designed to support your whole self. Work & career - Fully remote work & schedule flexibility - Company-provided laptop - Annual bonus program - Monthly remote work stipend - Annual professional development stipend - Industry conferences - Company all-hands and team gatherings Rest & play - 24 days PTO per year (prorated) - Your birthday - Year-end company shutdown - 9 wellbeing days - Public holidays - Other paid leave - Quarterly wellbeing stipend for personal / family activities Health & family - 401(k) / RRSP contributions - Health, dental, & vision insurance - Disability insurance - Life insurance - Employee assistance program - Paid parental leave - Paid sick days Work eligibility Applicants must reside in and have permanent work authorization for the country location(s) specified in the posting. We are unable to consider applicants outside of these markets at this time. And, we do not provide visa sponsorship. How to apply Please apply directly through our career page . We carefully review every cover letter and screening question, so take the time to answer each fully. We value authentic, thoughtful responses that reflect your own experience and perspective. It is fine to use AI tools to polish your writing, but your answers should be your own. Candidates who submit generic or unoriginal AI-generated responses may be disqualified from further consideration. Our commitment to diversity, equity, and inclusion MZLA believes in the value of diverse creative practices and forms of knowledge, and knows diversity, equity and inclusion are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities and expressions. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. MZLA will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodations@thunderbird.net to request accommodation.

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 link. 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: At Mozilla, we believe the internet is a global public resource—open and accessible to all. As a Security Engineer, you'll protect that vision by building, breaking, and hardening products that put people’s privacy and safety first. We are looking for a security engineer to own, manage and administer the Mozilla Web Bug Bounty program and work with Mozilla product and SIRT teams to ensure risk mitigation of security incidents and events. What you’ll do: - Own and scale Mozilla’s web bug bounty program, including strategy, prioritization, KPIs, and continuous improvement - Act as the primary interface with external researchers and platforms (e.g., HackerOne), fostering a high-quality and trusted research community - Lead triage and technical validation of incoming reports across multiple intake channels (HackerOne, Bugzilla, email) - Drive end-to-end vulnerability remediation, partnering with engineering teams to ensure timely, effective fixes - Identify root causes and systemic issues, and influence long-term improvements in secure development practices - Collaborate with the Security Incident Response Team (SIRT) on active incidents and post-incident reviews - Perform targeted code reviews (primarily JavaScript and Python) during investigations and high-risk changes - Develop or leverage tooling to improve triage efficiency, signal quality, and program insights What you’ll bring: - 3+ years of demonstrated ability in a security engineering role. - Experience operating bug bounty programs, including enhancements, automation and scaling, and/or bug hunting - Practical experience working with modern cloud technologies (eg. Amazon Web Services, Google Cloud Platform, Heroku, Microsoft Azure, etc.) - Experience analyzing code and systems to move from vulnerability → root cause → prevention - Real-world experience in software development and/or engineering operations - Ability to develop your own tools as needed in a variety of programming languages (eg. Python, Go, Rust, Javascript, etc.) is a plus, but not required. - Strong communication, collaboration, and problem-solving skills, with the ability to influence and guide cross-functional teams. - Formal credentials are great, but real-world experience, curiosity, passion and a growth mindset matter more. 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) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D LI-DNI Req ID: R3105

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: At Mozilla, accessibility (or a11y for short) is an integral part of our mission to ensure the internet is "open and accessible to all," helping to empower people, regardless of their abilities, to contribute to the common good. To that end, the Accessibility Team maintains the Firefox accessibility engine used by assistive technology software, as well as other accessibility specific features such as high contrast mode support. In addition, the team seeks to guide and educate design and product teams in crafting accessible Mozilla products or features. This supports Mozilla's ambition of creating a joyful internet for all. The Mozilla Corporation is looking for a skilled developer to work with our passionate Accessibility Team to make the web fully accessible! This is a small, hard-working team that affects the lives of users every day. Using your C++ and systems programming expertise, you will contribute to the core Gecko web rendering engine across various operating systems, shaping Mozilla’s efforts to take Firefox accessibility to the next level. Opportunities to collaborate with other browser teams abound, and working in the open is the norm. You’ll be responsible for writing code, tests, specifications, building prototypes, solving problems, and analyzing data. You'll get feedback from real users and synthesize it into bug reports, feature designs, and strategic direction to make the web platform even better over time. What You’ll Do: - Improve the architecture, stability, correctness and performance of the core Gecko accessibility engine. - Debug and fix problems in our multi-process, multi-threaded codebase. - Debug OS specific issues. - Build excellent working relationships with engineers and organizational leaders on other teams. - Collaborate with design and front-end teams to identify, assess, and remediate accessibility issues. - Influence web standards that provide or improve access to new web technology. - Work in the open as part of the Mozilla open source project and engage with Mozilla’s global community. - Work on infrastructure to expose the web platform to accessibility technology. - Meet standards for gecko's memory usage and performance. - Implement new web features to enable new kinds of applications and content types. What you'll bring: - A degree or equivalent in Computer Science or a related field. - Demonstrated proficiency with C++. - Knowledge of web accessibility and ARIA. - Knowledge of Javascript, the web, and web applications. - Experience working on cross-platform native applications. - Creative problem-solving and debugging skills. - Experience writing and debugging multi-process, multi-threaded code. - Ability to learn a large and complex multi-language code base. - Excellent written and verbal English communication skills. - Ability to effectively participate as part of a geographically-distributed open development team. - A passion to empower and improve the web for people with a diverse range of abilities. 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) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D LI-REMOTE Req ID: R3181 Hiring Ranges: US Tier 1 Locations $137,000 - $183,000 USD US Tier 2 Locations $126,000 - $168,000 USD US Tier 3 Locations $116,000 - $155,000 USD

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: At Mozilla, we believe the internet is a global public resource—open and accessible to all. As a Security Engineer, you'll protect that vision by building, breaking, and hardening products that put people’s privacy and safety first. We are looking for a security engineer to own, manage and administer the Mozilla Web Bug Bounty program and work with Mozilla product and SIRT teams to ensure risk mitigation of security incidents and events. What you’ll do: - Own and scale Mozilla’s web bug bounty program, including strategy, prioritization, KPIs, and continuous improvement - Act as the primary interface with external researchers and platforms (e.g., HackerOne), fostering a high-quality and trusted research community - Lead triage and technical validation of incoming reports across multiple intake channels (HackerOne, Bugzilla, email) - Drive end-to-end vulnerability remediation, partnering with engineering teams to ensure timely, effective fixes - Identify root causes and systemic issues, and influence long-term improvements in secure development practices - Collaborate with the Security Incident Response Team (SIRT) on active incidents and post-incident reviews - Perform targeted code reviews (primarily JavaScript and Python) during investigations and high-risk changes - Develop or leverage tooling to improve triage efficiency, signal quality, and program insights What you’ll bring: - 3+ years of demonstrated ability in a security engineering role. - Experience operating bug bounty programs, including enhancements, automation and scaling, and/or bug hunting - Practical experience working with modern cloud technologies (eg. Amazon Web Services, Google Cloud Platform, Heroku, Microsoft Azure, etc.) - Experience analyzing code and systems to move from vulnerability → root cause → prevention - Real-world experience in software development and/or engineering operations - Ability to develop your own tools as needed in a variety of programming languages (eg. Python, Go, Rust, Javascript, etc.) is a plus, but not required. - Strong communication, collaboration, and problem-solving skills, with the ability to influence and guide cross-functional teams. - Formal credentials are great, but real-world experience, curiosity, passion and a growth mindset matter more. 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) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D LI-REMOTE Req ID: R3105 Hiring Ranges: Canada Tier 1 Locations $104,000 - $139,000 CAD Canada Tier 2 Locations $95,000 - $126,000 CAD