Staff Software Engineer (Fullstack)

TL;DR

Staff Software Engineer (Fullstack): Planning and delivering major features and architectural improvements across the Add-ons stack for Firefox, with an accent on automated moderation pipelines, reviewer tools, and DevHub modernization. Focus on improving platform reliability, ensuring security, and resolving issues impacting millions of users and developers.

Location: Remote in the UK

Salary: £81,000–£108,000 GBP

Company

hirify.global is a non-profit-backed technology company focused on shaping the internet for the better, making pioneering brands like Firefox, used by over 225 million people globally.

What you will do

• Plan and deliver major features and architectural improvements for Add-ons stack (moderation pipelines, Reviewer tools, DevHub).
• Partner with Engineering management to set Operations Engineering standards (SLOs, incident management, observability).
• Mentor engineers, sharing knowledge and delegating responsibilities.
• Improve platform reliability through deployments, monitoring, and incident response on Google Cloud.
• Ensure platform safety and trustworthiness with attention to security and user trust.
• Resolve issues impacting users and developers, from bugs to larger incidents.
• Collaborate with designers, product managers, QA, and community contributors.

Requirements

• Experience leading and building modern web applications.
• Strong experience with Python/Django or similar backend frameworks.
• Understanding of web security principles and practices.
• Strong collaboration and communication skills in a distributed team environment.
• Adept at navigating ambiguity, exploring solutions, and shaping direction.
• Ability to work across teams and align stakeholders on engineering vision.
• Experience mentoring and supporting junior engineers.
• Location: Remote in the UK.

Nice to have

• Experience in Site Reliability Engineering.
• Exposure to cloud infrastructure (Google Cloud or similar).
• Contributions to open source projects.
• Experience with policy-compliant ecosystem moderation tools.

Culture & Benefits

• Generous performance-based bonus plans.
• Rich medical, dental, and vision coverage.
• Generous retirement contributions with 100% immediate vesting.
• Quarterly all-company wellness days and a day off for your birthday.
• One-time home office stipend and annual professional development budget.
• Considerable paid parental leave.