Senior Software Engineer - Engineering Workflow and CI jobs in United States
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Mozilla · 2 months ago

Senior Software Engineer - Engineering Workflow and CI

positionUnited States
timeFull-time
remoteRemote
senioritySenior Level

Mozilla Corporation is a non-profit-backed technology company that has shaped the internet for the better over the last 25 years. They are seeking a Senior Software Engineer to improve Firefox development workflows, collaborate with a geographically-distributed team, and mentor other team members while enhancing developer productivity.

Browser ExtensionsInternetOpen SourceSoftwareWeb Browsers
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Comp. & Benefits
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H1B Sponsor Likelynote

Responsibilities

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

Qualification

PythonJavaScriptCI/CD systemsPython frameworksCloud ServicesSQLData analysisContainerizationVersion control systemsCross-platform development

Required

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

Preferred

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

Benefits

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)

Company

Mozilla

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Mozilla provides internet solutions and offers firefox, thunderbird, and raindrop.
dateFounded in 1998
location
Mountain View, California, USA
people-size501-1000 employees
web-link
https://www.mozilla.org

H1B Sponsorship

Mozilla has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2024 (5)
2023 (4)
2022 (3)
2021 (2)
2020 (6)

Funding

Current Stage
Late Stage
Total Funding
$2.3M
Key Investors
AOL
2005-01-01Angel· $0.3M
2003-07-15Series Unknown· $2M

Leadership Team

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John Shaughnessy
Manager, Engineering and Ecosystem Strategy
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Recent News

Mashable
In Memoriam: All the tech that died in 2025
2025-12-31
Digital Trends
Firefox AI kill switch is coming, but you’ll wait until 2026
2025-12-24
TechSpot
Firefox will add an AI "kill switch" after community pushback
2025-12-21
Company data provided by crunchbase