Principal Engineer - AI Backend Scale-Up (Series A)

Oliver Bernard; Greater London; Hybrid; GBP 230,000 - 311,000; Full time

Job summary

Oliver Bernard in London is seeking a Principal Engineer for a fast-growing, Series A scale-up. This is a hands-on IC role focused on scalable backend systems and operating at scale. You will work directly with the Head of Engineering and CTO, contributing immediately to high-impact engineering initiatives.

The ideal candidate has taken companies from Series A through Series C, with a proven track record of diagnosing complex problems and delivering scale, plus real hands-on Python experience.

Qualifications

• Computer science background required.
• Hands-on Python experience.
• Track record of scaling from Series A to Series C.

Responsibilities

• Own and scale backend systems to handle growth.
• Diagnose and fix hard systems problems under pressure.
• Collaborate with Head of Engineering and CTO to unlock growth.

Skills

Python

Education

Computer science background

Job description

Oliver Bernard in London is seeking a Principal Engineer for a fast-growing, Series A scale-up. This is a hands-on IC role focused on scalable backend systems and operating at scale. You will work directly with the Head of Engineering and CTO, contributing immediately to high-impact engineering initiatives.

The ideal candidate has taken companies from Series A through Series C, with a proven track record of diagnosing complex problems and delivering scale, plus real hands-on Python experience.