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Senior Software Engineer - Engineering Workflow and CI

Sweden, Germany, France, UK, Finland, Belgium, Spain, Netherlands · Job Posted April 23, 2026
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Job Description

Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. Firefox developers land code every day to delight users with new features and improve product performance and security. Every day, developers and managers use our team's applications to develop, build, test, and deliver Mozilla's core products. We are force-multipliers to enable Firefox developers to do their best work.

Job Responsibility

  • Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows
  • Work with a geographically-distributed development team
  • Mentor other team members and be mentored by more senior team members
  • Collaborate with other teams by providing code review and technical direction
  • Look at data, make dashboards, identify trends in Firefox development workflow

Requirements

  • Proven Python skills, including building services
  • Front-end development experience, including JavaScript proficiency
  • Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST
  • Solid understanding of databases and SQL
  • Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses
  • Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android
  • A passion for enhancing developer productivity
  • Commitment to our values: Welcoming differences
  • Being relationship-minded
  • Practicing responsible participation
  • Having grit

Nice to have

  • A deep understanding of version control systems
  • Experience with containerization and continuous delivery/deployment, particularly with Docker
  • Experience with CI of large scale projects
  • Comfortable with data analysis

What we offer

  • Generous performance-based bonus plans to all eligible employees
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting
  • Quarterly all-company wellness days
  • 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.)

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Senior Software Engineer - Engineering Workflow and CI

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Senior Software Engineer - Engineering Workflow and CI

Firefox developers land code every day to delight users with new features and im...
Location
Location
France; United Kingdom; Finland; Belgium; Spain; Netherlands; Sweden; Germany
Salary
Salary:
Not provided
mozilla.org Logo
Mozilla
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven Python skills, including building services
  • Front-end development experience, including JavaScript proficiency
  • Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST
  • Solid understanding of databases and SQL
  • Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses
  • Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android
  • A passion for enhancing developer productivity
  • Commitment to our values: Welcoming differences, Being relationship-minded, Practicing responsible participation, Having grit
Job Responsibility
Job Responsibility
  • Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows
  • Work with a geographically-distributed development team
  • Mentor other team members and be mentored by more senior team members
  • Collaborate with other teams by providing code review and technical direction
  • Look at data, make dashboards, identify trends in Firefox development workflow
What we offer
What we offer
  • Generous performance-based bonus plans to all eligible employees
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting
  • Quarterly all-company wellness days
  • 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
Read More
Arrow Right

Senior Software Engineer - Engineering Workflow and CI

Firefox developers land code every day to delight users with new features and im...
Location
Location
France; Germany; United Kingdom; Belgium; Finland; Sweden; Netherlands; Spain
Salary
Salary:
Not provided
mozilla.org Logo
Mozilla
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven Python skills, including building services
  • Front-end development experience, including JavaScript proficiency
  • Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST
  • Solid understanding of databases and SQL
  • Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses
  • Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android
  • A passion for enhancing developer productivity
  • Commitment to our values: Welcoming differences
  • Being relationship-minded
  • Practicing responsible participation
Job Responsibility
Job Responsibility
  • Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows
  • Work with a geographically-distributed development team
  • Mentor other team members and be mentored by more senior team members
  • Collaborate with other teams by providing code review and technical direction
  • Look at data, make dashboards, identify trends in Firefox development workflow
What we offer
What we offer
  • 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
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Engineering Workflow and CI

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company th...
Location
Location
Germany; United Kingdom; Spain; Netherlands; Sweden; France; Finland; Belgium
Salary
Salary:
Not provided
mozilla.org Logo
Mozilla
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven Python skills, including building services
  • Front-end development experience, including JavaScript proficiency
  • Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST
  • Solid understanding of databases and SQL
  • Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses
  • Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android
  • A passion for enhancing developer productivity
  • Commitment to our values: Welcoming differences
  • Being relationship-minded
  • Practicing responsible participation
Job Responsibility
Job Responsibility
  • Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows
  • Work with a geographically-distributed development team
  • Mentor other team members and be mentored by more senior team members
  • Collaborate with other teams by providing code review and technical direction
  • Look at data, make dashboards, identify trends in Firefox development workflow
What we offer
What we offer
  • Generous performance-based bonus plans to all eligible employees
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting
  • Quarterly all-company wellness days
  • 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
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Engineering Workflow and CI

Firefox developers land code every day to delight users with new features and im...
Location
Location
Germany
Salary
Salary:
Not provided
mozilla.org Logo
Mozilla
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven Python skills, including building services
  • Front-end development experience, including JavaScript proficiency
  • Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST
  • Solid understanding of databases and SQL
  • Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses
  • Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android
  • A passion for enhancing developer productivity
  • Commitment to our values: Welcoming differences
  • Being relationship-minded
  • Practicing responsible participation
Job Responsibility
Job Responsibility
  • Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows
  • Work with a geographically-distributed development team
  • Mentor other team members and be mentored by more senior team members
  • Collaborate with other teams by providing code review and technical direction
  • Look at data, make dashboards, identify trends in Firefox development workflow
What we offer
What we offer
  • Generous performance-based bonus plans to all eligible employees
  • 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
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Engineering Workflow and CI

Firefox developers land code every day to delight users with new features and im...
Location
Location
Salary
Salary:
Not provided
mozilla.org Logo
Mozilla
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven Python skills, including building services
  • Front-end development experience, including JavaScript proficiency
  • Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST
  • Solid understanding of databases and SQL
  • Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses
  • Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android
  • A passion for enhancing developer productivity
  • Commitment to our values: Welcoming differences, Being relationship-minded, Practicing responsible participation, Having grit
Job Responsibility
Job Responsibility
  • Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows
  • Work with a geographically-distributed development team
  • Mentor other team members and be mentored by more senior team members
  • Collaborate with other teams by providing code review and technical direction
  • Look at data, make dashboards, identify trends in Firefox development workflow
What we offer
What we offer
  • Generous performance-based bonus plans
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting
  • Quarterly all-company wellness days
  • 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
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Engineering Workflow and CI

Firefox developers land code every day to delight users with new features and im...
Location
Location
Salary
Salary:
Not provided
mozilla.org Logo
Mozilla
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven Python skills, including building services
  • Front-end development experience, including JavaScript proficiency
  • Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST
  • Solid understanding of databases and SQL
  • Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses
  • Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android
  • A passion for enhancing developer productivity
  • Commitment to our values: Welcoming differences, Being relationship-minded, Practicing responsible participation, Having grit
Job Responsibility
Job Responsibility
  • Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows
  • Work with a geographically-distributed development team
  • Mentor other team members and be mentored by more senior team members
  • Collaborate with other teams by providing code review and technical direction
  • Look at data, make dashboards, identify trends in Firefox development workflow
What we offer
What we offer
  • 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
Read More
Arrow Right

Senior Software Engineer - Engineering Workflow and CI

Firefox developers land code every day to delight users with new features and im...
Location
Location
Salary
Salary:
Not provided
mozilla.org Logo
Mozilla
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven Python skills, including building services
  • Front-end development experience, including JavaScript proficiency
  • Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST
  • Solid understanding of databases and SQL
  • Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses
  • Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android
  • A passion for enhancing developer productivity
  • Commitment to our values: Welcoming differences
  • Being relationship-minded
  • Practicing responsible participation
Job Responsibility
Job Responsibility
  • Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows
  • Work with a geographically-distributed development team
  • Mentor other team members and be mentored by more senior team members
  • Collaborate with other teams by providing code review and technical direction
  • Look at data, make dashboards, identify trends in Firefox development workflow
What we offer
What we offer
  • Generous performance-based bonus plans
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting
  • Quarterly all-company wellness days
  • 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
Read More
Arrow Right

Senior Software Engineer, Embedded Software Automation and Tools

The role involves developing and maintaining software and tools that help variou...
Location
Location
United Kingdom , Cambridge
Salary
Salary:
Not provided
roku.com Logo
Roku
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 10+ years of hands-on experience with automation systems
  • 10+ years of programming experience, preferably with Python
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  • Agentic workflow familiarity: Working knowledge of multi-step AI orchestration frameworks and the practical use of AI agents to support and streamline day-to-day development workflows
  • Experienced in developing and maintaining web-based tools using JavaScript and React/Next.js
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Job Responsibility
  • Develop and release new E2E automation support and tools
  • Debug issues to improve the quality of automated test tools and frameworks
  • Conduct code reviews to improve code quality and optimization
  • Promote coding conventions and standards for code re-usability and cleanliness
  • Document feature guides, identify and formulate user requirements, and define product behavior
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  • Assist in monitoring and maintenance of critical systems
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  • Review and provide technical feedback on design documents and high-level architecture diagrams across multiple tools and teams, with a focus on evaluating design trade-offs, scalability, maintainability, and alignment with overall system architecture
What we offer
What we offer
  • Global access to mental health and financial wellness support and resources
  • Healthcare (medical, dental, and vision)
  • Life, accident, disability, commuter, and retirement options (401(k)/pension)
  • Time off in accordance with local leave policies
  • Fulltime
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