Chief Technology Officer (CTO)

• Proven experience as CTO, VP Engineering, Chief Architect or technical founder
• Experience building and scaling successful SaaS platforms
• Strong hands-on engineering capabilities
• Deep Python expertise
• Strong understanding of AI, LLMs, agents and modern AI architectures
• Experience with .NET ecosystems
• Experience designing scalable cloud-native systems
• Track record of building products used by thousands of customers
• Strong product and commercial mindset
• Ability to recruit and lead exceptional engineering teams

Strong Plus

• Experience building internationally successful software businesses
• Experience in AI-first companies
• Experience in AdTech, MarTech or high-volume data platforms
• Experience growing engineering organizations from startup to scale-up
• Previous founder or co-founder experience

• Product development velocity increases dramatically
• Engineering becomes a world-class function
• The platform scales globally
• Aizy establishes itself as one of the leading AI software companies in Europe and beyond

Why This Role Is Different

Very few opportunities exist where you can:

• Join after product-market fit
• Join after significant revenue traction
• Help shape a category-defining company
• Work directly with experienced founders and investors
• Build a globally scalable AI platform from an already proven foundation

This is not a role for someone who wants to maintain systems.

This is a role for someone who wants to build something exceptional.

Someone who believes technology can fundamentally change an industry.

Someone who wants to help create a company capable of reaching €100M+ ARR and becoming the global benchmark in AI-powered performance marketing.

If that sounds like you, we'd love to talk.

Apply

Send your LinkedIn profile, CV and a short introduction describing the most impressive software platform you've helped build and scale.

What you get from us

A defining leadership role in one of Europe's fastest-growing AI companies

Full ownership of technology, architecture and engineering culture

The opportunity to build a category-defining AI software platform

Direct collaboration with founders, investors and leadership

Competitive compensation aligned with seniority and impact

A modern office in Breda and the flexibility to work hybrid

Aizy is one of Europe's fastest-growing AI software companies, combining artificial intelligence, automation and human expertise to deliver measurable business outcomes for customers. In little over a year, we have grown to more than 500 customers, multiple millions in annual recurring revenue and a rapidly expanding international customer base. Today, we are entering the next phase. Our ambition is not to build another marketing platform. Our ambition is to build the global category leader in AI-powered performance marketing. A platform so intelligent, automated and effective that there simply is no better alternative. To help us achieve that goal, we are looking for an exceptional Chief Technology Officer. The Opportunity This is not a traditional CTO role. This is a company-building role. We are looking for a highly technical leader with a co-founder mindset. Someone who has built large-scale SaaS platforms, understands how world-class software companies are created and is willing to stay hands-on while building the future of Aizy. You will work directly with founders Stefan Nuijten and Michiel Mol to define the long-term technology vision, accelerate product development and build a platform capable of serving customers worldwide. You will become one of the most influential people within the company and play a critical role in shaping our future. About Aizy * 500+ active customers * Multi-million ARR business * International growth trajectory * Proprietary AI software platform * Backed by successful technology entrepreneurs and investors including Michiel Mol and Gijs Nagel * Ambition to become the global leader in AI-powered performance marketing We believe the future belongs to software, not service businesses. The companies that win the next decade will not be the companies with the most employees. They will be the companies with the best technology. Technology Stack * Backend: .NET, Python * Frontend: SvelteKit, Angular * AI: Claude, OpenAI, LLMs, AI Agents and orchestration frameworks * Infrastructure: Cloud-native, scalable multi-tenant architecture * Data: High-volume advertising and marketing performance datasets * Integrations: Google Ads, Microsoft Ads, Meta, TikTok and emerging AI-native advertising platforms You will inherit a proven platform with real customers, real scale and a rapidly evolving AI-first product roadmap. As CTO, you will play a key role in shaping the future architecture, engineering standards and technology strategy that will support our next phase of growth. What you'll Build You will lead the development of: * Autonomous AI-driven advertising systems * Multi-channel campaign optimization engines * Agentic AI workflows * Large-scale marketing intelligence infrastructure * Enterprise-grade SaaS architecture * International multi-tenant platform capabilities * Advanced forecasting, recommendation and decision engines * Future AI-native products that redefine how businesses acquire customers Our goal is straightforward: Build software that consistently delivers better outcomes than agencies, freelancers or competing platforms.