# Senior Software Engineer - Engineering Workflow and CI

**Company:** [Mozilla](https://hotfix.jobs/companies/mozilla)
**Location:** Remote
**Role:** DevOps / SRE
**Skills:** Python, JavaScript, FastAPI, Flask, Django, GCP, AWS, SQL, GitHub Actions, CircleCI, Docker
**Posted:** 2026-04-16

> Develops and improves Firefox engineering workflows, CI/CD pipelines, and tools to boost developer productivity. Requires strong Python, JavaScript, cloud services, and CI systems experience; works with distributed teams.

## Job Description

## 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

## 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

## Nice-to-Haves
- 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

## Similar roles

- [Site Reliability Engineer](https://hotfix.jobs/jobs/ab64f10b-7c19-4c49-b827-0e3559c514c9) - Forward Networks - Santa Clara, CA - $230k – $250k/yr
- [Sr. Software Engineer, Platform Engineering](https://hotfix.jobs/jobs/fafdb79e-697e-4378-aa19-4482d0884fe1) - Chronograph - Remote - $175k – $215k/yr
- [Senior Site Reliability Engineer](https://hotfix.jobs/jobs/076df34d-0d8e-4f15-8a79-eb559a8e5f52) - Talkiatry - Remote - $160k – $185k/yr
- [Senior Infrastructure Engineer](https://hotfix.jobs/jobs/7fad3112-9910-402c-b20e-17b838f39c55) - Aurelian - Seattle, WA - $160k – $220k/yr
- [Sr. Site Reliability Engineer](https://hotfix.jobs/jobs/2c837b9b-f230-4e2a-aadb-21d12039b4d2) - Illumio - Sunnyvale, CA - $170k – $196k/yr

**Apply:** https://hotfix.jobs/jobs/968e204d-08bc-4127-b8d5-b25e32acad96
**Canonical:** https://hotfix.jobs/jobs/968e204d-08bc-4127-b8d5-b25e32acad96