Principal Senior Staff Engineer

• Lead by influence – Inspire and align 10+ colleagues (including executives) around long-term initiatives, breaking them into clear, outcome-driven roadmaps.
• Solve meaningful challenges at scale – Work on innovative problems in digital safety, trust, and privacy, designing solutions that reach millions of users worldwide.

The role is ideal for someone who thrives at the intersection of deep technical expertise, system design, and collaborative leadership, shaping the direction of complex projects without direct people management.

They welcome people who thrive in diverse, collaborative teams, who are comfortable navigating change, and who want to help shape the future of online experiences.

Tech environment (not required, just context for a tech agnostic individual at this level)

• Go, Python (selective use)
• Experience building technical solutions in new or complex domains, and turning research into real-world products.
• Strong communication skills where you are able to share ideas clearly and inclusively, encouraging collaboration.
• Docker, Terraform
• Google Cloud (GCE, Cloud Run, BigQuery, Composer, …)
• Node.js / JavaScript
• LLM (VertexAI)

• Work across the stack – From low-level systems to user-facing applications, you’ll have the chance to explore different layers of technology and see your work make a visible impact.
• A strong focus on outcomes over hours, giving you the autonomy to manage your work in a sustainable way.
• Flexible working hours to support different lifestyles and personal commitments.
• Salary is up to £230,000 annually + benefits