🚀 Senior Staff / Principal Engineer (Hands on role)
🌍 Location: Remote (EST, BST, or CET) | Offices in Berlin, Cologne, Toronto & NYC
📌 Reporting to: CTO
The Story
Imagine this:
You’re handed a challenge—one that touches the digital lives of hundreds of millions of people.
The task isn’t just to optimize code or ship features. It’s to reimagine a company’s mission: from ad-blocking pioneer to the world’s most trusted consumer cybersecurity platform.
This isn’t business as usual. It’s a re-founding. And they’re looking for someone who’s more than just a brilliant engineer— someone who leads with code, clarity, and conviction.
Your Impact
This company is on a mission to protect the 99% online—across privacy, safety, hardware, money, and families.
To do that, they need a builder.
Someone who can:
✅ Architect machine learning systems for problems like webpage element labelling—treating them like computer vision for the web
âś… Build privacy-respecting tools at scale, like differentially private analytics
âś… Dive into embedded systems or tweak browser extensions without blinking
âś… Lead cross-functional teams of 10+ people without formal authority, influencing peers & execs
âś… Turn complexity into clarity through beautifully written design docs and roadmaps
What You Bring
🔹 Experience at scale – You've shipped systems that serve millions, across the stack
🔹 Mastery of new domains – You dive into research papers and come out with working systems
🔹 Strong judgment – You know when to ship, when to simplify, and when to start over
🔹 Empathy and influence – Your leadership is felt, not forced
🔹 Data-driven thinking – You isolate problems, prioritize, and validate solutions using data
Open Tech stack, Pragmatic Approach
This team is intentionally tech-agnostic. You won't be pigeonholed into a stack—you’ll be encouraged to choose the right tool for the problem. Elegant simplicity beats trendiness—and your architecture decisions will set the standard.
Why Join
✨A bold mission – Help build the internet’s equivalent of a personal firewall for the everyday user
✨A moment of transformation – Be part of a company reinventing itself, with new leadership
✨Remote-first freedom – Collaborate from anywhere across EST to CET, or plug into the hubs
✨A team of re-founders – This is not a place for status-quo thinkers. It’s a place for pioneers.
đź’Ľ Salary & Benefits
• EU: €120K–€140K
• UK: £110K–£137K
Equity
• Virtual share options available
• Potential buyout opportunities — negotiable
This Isn’t a Job. It’s a Calling.
You won’t be micromanaged. You won’t be a cog in the machine. You’ll be a quiet revolutionary helping shape the future of online safety.
Ready to build what no one else has?