Senior Security Engineer (Add-ons Operations)

Senior Security Engineer (Add-ons Operations)

Full-Time 60000 - 80000 £ / year (est.) Home office (partial)
Mozilla

At a Glance

  • Tasks: Craft resilient systems and enhance the Add-ons experience for developers worldwide.
  • Company: Join Mozilla, a leader in open-source technology with a collaborative spirit.
  • Benefits: Comprehensive health coverage, mental health support, generous leave, and professional development budget.
  • Other info: Dynamic work environment with opportunities for growth and contributions to open source.
  • Why this job: Make a real impact on millions while working with cutting-edge tech and a passionate team.
  • Qualifications: Strong Python/Django skills, collaboration mindset, and web security knowledge required.

The predicted salary is between 60000 - 80000 £ per year.

Overview

As a Senior Software Engineer - Operations, you’ll bring a passion for crafting resilient systems that accelerate our review and operations team to provide a first-class experience for Add-on developers.

You’ll work closely with engineers, reviewers, developer relations, and Add-ons leadership to turn ideas into polished features, modernize the platform and its architecture, and see your work reach millions of people around the world.

Responsibilities

  • Deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines, Reviewer tools, and Dev Hub
  • Create robust observability systems and data-backed insights
  • Provide peer feedback, share knowledge and help others grow
  • Improve platform reliability through deployments, monitoring, and incident response
  • Help keep the platform safe and trustworthy, with attention to security and user trust
  • Step in to resolve issues impacting users and developers, from small bugs to larger incidents
  • Collaborate with designers, product managers, QA, and community contributors to deliver end-to-end improvements
  • Contribute in the open through pull requests, code reviews, and discussions

• Work on

  • Full stack development: React/Type Script frontends, Django backend, My SQL datastore
  • Platform reliability: deployments, monitoring, and incident response on Google Cloud
  • Feature development: submission flows, trust and safety signals, Dev Hub and Reviewer tools modernization
  • Ecosystem moderation: abuse report management, policy compliance, and ecosystem safety
  • Open collaboration: We work in the open, with contributions from Mozilla staff and community members

Qualifications

  • Strong experience with Python/Django or similar backend frameworks
  • Strong collaboration and communication skills in a distributed team environment
  • Adept at navigating ambiguity, exploring solutions, and shaping direction in new problem spaces
  • Being relationship-minded
  • Understanding of web security principles and practices
  • Practicing responsible participation
  • Experience building modern web applications
  • Having grit
  • Commitment to our values: Welcoming differences
  • Experience in building automated security systems
  • Exposure to cloud infrastructure (Google Cloud or similar)
  • Contributions to open source projects
  • Experience with policy-compliant ecosystem moderation tools

Benefits

  • Health and wellness: Mozilla covers medical, dental and vision plan premiums at 100% for U.

S. and Canadian employees.

Our offerings give you the options you need to manage your health — and your family’s — the way you want.

  • Mental health: Mental health is as important as our physical health.

That’s why Mozilla’s health benefits include therapy and coaching sessions to make sure our people have access to the care they need.

  • Time away: With all of life’s demands, time away from work to disconnect and recharge is essential.

In addition to country-specific holidays (12 in the U.

S. and Canada), vacation and sick time start accruing right away (specifics vary by country).

Everyone also takes a pause together on quarterly all-company wellness days, plus you get to celebrate the most personal holiday of all: your birthday.

  • Parental leave: While Mozilla’s parental leave policies vary globally, our U.

S. and Canadian-based employees can look forward to 26 weeks of paid leave for childbearing parents and 12 weeks of paid leave for non-childbearing parents.

  • Financial: Mozilla offers generous, performance-based bonus plans to all regular employees.

Mozilla contributes a percentage of your eligible base salary to the 401(k) Plan/RRSP, with 100% vesting.

  • Learning and development: Every employee is eligible for an annual professional development budget for training, certifications, conferences and more.
  • Help when you need it: Mozilla provides Life/AD&D and Short and Long Term Disability insurance to ensure a safety net (offerings may vary by locale).
  • Plus a bit more: A quarterly wellbeing stipend, an employee referral bonus, internet reimbursement for remote work, and a budget for office essentials to support ergonomic remote work.
  • #J-18808-Ljbffr
Mozilla

Contact Details:

Mozilla Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Security Engineer (Add-ons Operations)

Get Involved in the Cybersecurity Community

Diving into the cybersecurity community is key for landing that full-time gig. Join forums like Reddit's r/cybersecurity or attend local meetups to connect with industry veterans and other job seekers. Networking is everything in this field—don’t just be a passive lurker!

Show Off Your Skills with Capture the Flag Competitions

Participate in Capture the Flag (CTF) competitions; these are not just a fun way to boost your skills but also a chance to showcase your talent to potential employers. Many companies, including Mozilla, love seeing candidates who actively engage in these challenges.

Tailor Your Online Presence

Make sure your LinkedIn and any professional profiles reflect your cybersecurity expertise. Share your projects, whether they’re personal or from a previous role, to catch the eye of hiring managers. This is how they’ll find your passion and commitment to the field!

Apply Directly Through Mozilla

Don’t forget to head straight to our website and check out any openings for cybersecurity roles at Mozilla. Applying directly can sometimes give you an edge, especially if you can mention that you've been following our work or engaging in the community.

We think you need these skills to ace Senior Security Engineer (Add-ons Operations)

Python
Django
Full Stack Development
React
TypeScript
MySQL
Cloud Infrastructure

Some tips for your application 🫡

Show off your technical skills:In cybersecurity, it's crucial to highlight your technical prowess. Make sure your CV showcases specific skills like network security, penetration testing, or threat analysis. If you have relevant certifications (like CEH or CISSP), pop those on the front page to grab attention!

Tailor your portfolio for the role:Even for a full-time role, a portfolio can set you apart. If you've worked on any cybersecurity projects—be it CTF challenges, security assessments, or research papers—include these in your application. This demonstrates not just your skills, but also your hands-on experience!

Use real-world examples:When writing your cover letter, don’t just stick to your qualifications. Share real-world examples of how you’ve tackled security issues or vulnerabilities. This gives the hiring team at Mozilla insight into your practical problem-solving abilities and makes your application memorable.

Demonstrate your passion for cybersecurity:Cybersecurity is an ever-evolving field, so show us that you’re always learning! Mention any recent courses, webinars, or industry events you’ve attended. This not only exhibits your enthusiasm but also signals to Mozilla that you’re committed to staying ahead in the game.

How to prepare for a job interview at Mozilla

Sharpen Your Technical Skills

For a role in cybersecurity, it’s essential to be up-to-date with the latest tools and techniques. Brush up on your knowledge of firewalls, intrusion detection systems, and vulnerability assessment tools. Be ready to discuss specific scenarios where you’ve applied these skills, as hands-on experience can really set us apart in interviews.

Prepare for Scenario-Based Questions

Expect the interviewers at Mozilla to throw in some hypothetical situations to see how you’d handle them. Think about common security breaches or incidents and be prepared to explain how you would respond. This not only shows your problem-solving skills but also your understanding of real-world cybersecurity challenges.

Highlight Your Certifications

Certifications like CompTIA Security+, CISSP, or CEH can give you a significant edge in a full-time role in cybersecurity. Make sure to mention these during your interview and be prepared to discuss what you learned through those certifications and how they relate to the position at Mozilla.

Show Your Passion for Cybersecurity

Since you’re going for a full-time gig, showing genuine enthusiasm for the field can make all the difference. Share any personal projects, blogs, or communities you’re part of that relate to cybersecurity. This not only showcases your passion but also your commitment to staying engaged in this ever-evolving field.