Senior Software Engineer (Python)
Senior Software Engineer (Python)
Hybrid London (2 days/week)
Up to £100,000 + Benefits
We're hiring a Senior Software Engineer to play a key role in building and scaling a high-impact ad-fraud prevention platform used globally. This is a senior IC role for engineers who enjoy ownership, solving complex problems, and setting a high bar for engineering quality.
What you'll do:
Lead delivery of complex, cross-service features
Make pragmatic architecture and design decisions
Own services end-to-end, including performance, reliability, and incident response
Set standards for testing, observability, and security
Mentor engineers and contribute to strong team practices
Collaborate closely with Product, Design, and Data teams
What we're looking for:
Strong experience as a Senior Software Engineer in modern product teams
Proven ability to design and deliver scalable, reliable systems
Experience operating production services
Strong coding, code review, and technical leadership skills
Comfortable working through ambiguity and influencing technical direction
Why apply?
Salary up to £100,000
Hybrid working - 2 days per week in the London office
High ownership, high-impact role
Strong engineering culture focused on quality and reliability