CTO - Ai Consumer Platform - Scale Up - Backed by tier 1 VCs.

Blockchain 121; London; On-site; GBP 120,000 - 180,000; Full time

Job summary

Blockchain 121 is seeking a visionary CTO to drive growth in their AI-powered consumer platform. This role offers a unique opportunity to lead in a start-up environment backed by tier-one VCs, focusing on innovative tech solutions and significant equity stakes.

Benefits

Significant equity

Substantial base salary

Token incentives

Qualifications

• Experience with fast-scaling consumer apps.
• Familiar with LLMs and generative media.
• Proven track record of leading teams through hypergrowth.

Responsibilities

• Lead all engineering strategy and execution.
• Hire and shape a world-class technical team.
• Refine architecture to support user growth.

Skills

Consumer/social platform experience

AI-native knowledge

Security understanding

Education

Experience as CTO or technical co-founder

Job description

CTO - Ai Consumer Platform - Scale Up - Backed by tier 1 VCs.

CTO - Ai Consumer Platform - Scale Up - Backed by tier 1 VCs.

Direct message the job poster from Blockchain 121

About the Company - They’ve already launched and they’ve already proven it works. AI-powered consumer platform is breaking boundaries in how people interact with digital content.

With millions in funding secured, a $100 mil seed valuation, and celebrity partners already onboard, they’re now entering the scale-up phase.

Significant Equity - Plus substantial base and package, inline with other Leading Venture Backed Businesses.

The founding team includes veterans from viral growth powerhouses. They're backed by elite angels and tier-one VCs, and they’re building something that sits at the intersection of culture, AI, and consumer behaviour.

They’re now looking for a world-class CTO to lead them through this critical scale-up phase. T

This isn’t about building from scratch, it’s about taking what they’ve built, refining it, and preparing it for massive user growth, infrastructure demands, and platform evolution.

You’ll Likely Have:

● Consumer/social platform experience – preferably in fast-scaling apps with virality or strong engagement loops.

● AI-native knowledge – familiar with LLMs, generative media, and how to deploy AI at scale in consumer apps.

Web3/token experience – not mandatory, but helpful in navigating our tokenised mechanics.

● CTO or technical co-founder experience – you’ve scaled a team, shipped products, and know what’s needed to lead both people and codebases through hypergrowth.

● A deep understanding of security, performance, scalability, and data architecture at scale.

Traits That Matter :

● Not a cog – we don’t want corporate.

● Visionary but not naïve – you know when to innovate and when to use what works.

● Builder’s mentality – you thrive in chaos, lead from the front, and love solving hard problems.

● Scale-up ready – you've either done it before or you’re truly ready to step up and own the next chapter.

What You’ll Own:

● Tech leadership – lead all engineering strategy and execution.

● Team growth – hire and shape a world-class technical team.

● Product evolution – refine architecture to support user growth, virality, and AI capability.

● Infrastructure & scale – take us from thousands to millions without blinking.

● Security & reliability – protect what we’ve built while enabling fast, fearless innovation.

Why This Role?

● Once-in-a-decade timing – this is the moment just before breakout scale

● Massive upside – equity + token incentives for a truly meaningful stake

● Celebrity + Tier 1 investor backing – visibility, legitimacy, and influence from day one

● Culturally defining opportunity – shape the future of AI-driven content and digital engagement

Significant Equity - Plus substantial base and package, inline with other Leading Venture Backed Businesses.

Seniority level

• Seniority level

  Executive

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  Consumer Services and Technology, Information and Media

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