Andrei Rafai

Hands-on CTO · Fractional & advisory · London

I help investors and their portfolio companies get more out of engineering: leaner teams, lower cloud bills, and no surprises in technical due diligence.

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How I can help

For VC funds

Technical due diligence

Architecture, scalability, security and team review on your next deal, written up within 48 hours.

For PE portfolios

Tech and cost review

Where the cloud and engineering money goes, what the team needs, and what to fix first.

For portfolio companies

Fractional CTO

One or two days a week between CTOs, before hiring one, or through ISO 27001 and scale-up.

Track record

15+ yearsbuilding and leading engineering teams

~65%cloud infrastructure cost reduction

ISO 27001certification delivered

1B+events a day on a data platform I later led

CTO, Disciple MediaTurnaround of a 2M+ user platform: team rebuild, re-platforming, ISO 27001
2023 - now
VP of Engineering, TruealphaFirst engineering hire, built the team and product to paying customers
2021 - 2023
Principal Engineer, ClearScoreDaily credit reports, 3–4% revenue uplift on a £50M+ business
2020 - 2021
Staff Engineer, SchibstedAudience targeting engine, MVP to the division's top product, now ~€40M a year
2015 - 2019

Get in touch

Have a deal in diligence or a portfolio company that needs a hand?

Get in touch