Head of Engineering - AI Stack

Could you be one of the Architects for the technical engine? that drives CityZeen’s mission and scales our platform to $100M ARR. "This is the path to Head of Engineering — not just a spot on the org chart".

Why You’ll Love Building at CityZeen

• Regenerative finance on day one. Join a platform that’s “the regenerative Club Investment where middle class get amazing yields,” democratizing access to deals once reserved for the ultra-wealthy

• Purpose-driven impact. Our mission is simple yet bold: “Members allocate capital to influence healthy living.” You’ll build the tech that underpins every investment, from blockchain transparency to data-driven insights.

• Blank canvas, full autonomy. We’re working our pan-European FinTech licence—your architecture, your roadmap. No tech debt encumbrances, just the freedom to invent.

• Global footprint. Main base in Paris with hubs in Toronto and Bogotá, you’ll lead a distributed team in English (plus two other languages, if you’d like).

The Impact You’ll Own - First 30 days then next 6 Months

• You don't start from zero, we have a product built, you start from there, to make it awesome.
• Draft and validate a compliant, scalable architecture for Web3/LLM
• Stand up CI/CD pipelines, cloud infrastructure, and security tooling.
• Build new key modules: blockchain, LLM, security, member dashboard, API gateway, Agents.
• You get hands on, You code, not just wait for a team, we want to see what you build no promises.

Next 6-12 Months:

• Lead the launch of V4/5 production platform—zero-downtime deployments, 99.9 % SLA.
• Scale engineering from 0 to 6+ across backend, frontend, data, and AI-LLM teams.
• Integrate Gen-AI/LLM features for investor insights and automated due diligence.
• Drive cost-to-revenue ratio 25-40% % by optimizing cloud spend and pipelines.
• You know we build V1 with less than $5K. You support our fundraising technical roadmap.

**Stock options can be unlocked after a period of time, based on your first results.

Stages:

• Phase A (Now): Technical Architect / Head of Engineering

Focus on system design, building solid system on AI for operations, setting up LLM-AI Infra and security plus Blockchain stack almost done.

• Phase B (Post-Series A/PMF): Promote to Head when managing 2 to 5+ engineers, raising major funding, and overseeing architecture/staffing.

What You’ll Own

• Technical Strategy and Architecture
• Design a microservices-based stack (SaaS, Cloud, APIs) that powers real-time investment flows.
• Lead blockchain integrations and Web3 tooling for transparent asset management.
• Embed Gen-AI/LLM capabilities to automate portfolio analytics and customer support.

Security and Compliance:

• Own technical risk management: threat modeling, encryption key governance (no back-doors), and zero-trust access.
• Collaborate with legal and finance to ensure GDPR, MiFID II, and PSD2 compliance.
• Team Leadership and fits CityZeen culture (4S)
• Recruit, mentor, and retain top engineers and AI Engineers.
• Instill agile best practices, code review rigor, and a culture of psychological safety.

Budget and technnical Partnerships:

• Negotiate vendor contracts and cloud commitments—be a ruthless cost-killer without sacrificing speed.

• Forge alliances with cloud providers, open-source foundations, and technical partners in FinTech and blockchain.

Who You Are:

• Seasoned technologist (8–15+ years). Senior engineering leadership in asset management, banking, or FinTech, with at least one major scale-up under your belt.

• Full-stack mastery. Deep expertise in SaaS, Cloud (ICP/AWS/GCP), APIs, blockchain platforms, and Gen-AI/LLM integration.

• Trusted communicator. Fluent in English plus two other languages "not mandatory" (French, Hindi, Portuguese, Spanish, etc.). Comfortable presenting to boards, regulators, and dev teams alike.

• Emotionally intelligent leader. You build trust through transparency, empathy, and relentless follow-through. You are extremely careful on details, design (UX/UI) and care about our impact and reliability.

• Compliance and security mindset. You understand that building financial systems means building trust—no shortcuts, no hidden keys. This is a KEY factor.

• Budget hawk and deal-maker. You negotiate technical partnerships and vendor contracts like a CFO, always optimizing TCO.

What You Get:

• Significant equity + competitive salary. Early-stage option pool at seed-stage valuation.

Executive seat. Direct report to the CEO, VoC in every strategic conversation.

• Mission and culture. Work with a diverse, purpose-driven team committed to sustainable finance and real-world impact.

• Global flex. Hybrid-friendly in Paris, Toronto, or remote within CET/EST time zones.

How to Apply

• Resume and GitHub/Portfolio: Highlight two systems or products you’ve built end-to-end.

• Technical Blueprint: One-pager (diagram + bullets) outlining how you’d scale CityZeen’s platform to handle $100 M ARR—with a focus on clients and AI-driven insights.

Ready to engineer the future of regenerative finance? Click “Apply” — and let’s build something extraordinary.

We welcome and we have a Venture for top-engineers from Google, Amazon, Meta, Apple, or NeoBanks (Revolut, NuBank, FinTech Apps), Top Web3, AI, etc, if you ackwnoledge this a hands-on key position, not a giant corporation, so before to apply ponder your personal choice, to truly generate impact.

Alternatives:

Track 1: A high-caliber, shorter-term contract / fractional CTO to help during licence and system design.

Track 2: Full-time founding-level engineer who takes the reins afterward, with the title evolving downstream.