SaaS platforms
Multi-tenant web applications with subscription billing, user management, analytics dashboards, and API integrations.
Product engineering for ambitious startups.
We are a software development studio that helps founders and companies design, build, and scale digital products — from first commit to market fit and beyond.
We've worked with amazing companies
- Booking.com
- Takeaway.com
- Learning Heroes
- Yuna Merch
Services - We partner with founders and companies to build exceptional software.
From early-stage startups to scaling SaaS companies, we provide the technical leadership and engineering capacity to turn ideas into products.
- Interim CTO. We step in as your technical leader — setting architecture, managing engineering teams, and aligning technology strategy with business goals. Ideal for startups between technical hires or preparing for investment rounds.
- Freelance development. Senior engineers embedded in your team, shipping production code from day one. We work across the full stack — from React and Next.js frontends to Node.js, Python, and cloud infrastructure.
- Technical co-founder partnership. For non-technical founders who need a committed technical partner. We help validate ideas, build MVPs, establish engineering culture, and scale the product through early traction.
- Web and mobile app development. End-to-end product development for web and mobile platforms. We design, build, and ship applications using modern frameworks and cloud-native architecture.
Experience - Built by engineers who have shipped at scale.
Our team brings deep experience from leading technology companies and entrepreneurial ventures across Europe.
- Enterprise scale. Our team previously worked at companies such as Booking.com and Takeaway.com, building systems that serve millions of users daily. We bring that operational rigor to every project we take on.
- Platform builders. Our experience includes building and exiting digital platforms, including the product formerly known as Stackdeck. We understand what it takes to go from zero to acquisition.
- Brand creators. Our team has also co-founded consumer brands such as Yuna Merch, giving us first-hand insight into e-commerce, brand development, and direct-to-consumer product strategy.
Our approach - Lean process, real results.
We work as an embedded extension of your team — no unnecessary overhead, no bloated timelines. Just focused engineering and clear communication.
- Discovery. We start by understanding your business, users, and technical landscape. We identify constraints early and define a clear roadmap before writing any code.
- Build. We ship iteratively in tight cycles, prioritizing working software over documentation. Every sprint delivers tangible progress you can see, test, and give feedback on.
- Scale. As your product grows, we help establish the engineering practices, infrastructure, and team structures needed to scale reliably — then hand over with confidence.
Our work - Software that drives business forward.
We build products across a wide range of industries and problem spaces. Here are the types of projects we typically deliver.
AI-powered tools
Applications leveraging large language models, computer vision, and machine learning — from intelligent assistants to automated workflows.
Marketplaces
Two-sided platforms connecting buyers and sellers, with search, payments, reviews, and real-time messaging built in.
Mobile applications
Native and cross-platform apps for iOS and Android — from consumer products to enterprise tools and companion apps.
Internal tools
Custom admin panels, operations dashboards, and workflow automation tools that reduce manual effort and improve team productivity.
Developer products
APIs, SDKs, CLI tools, and developer platforms — built with clear documentation, strong DX, and scalable infrastructure.
A European software development studio
Sayakaya is a boutique software studio based in the Netherlands. We work with startups, early-stage SaaS companies, and founders across Europe who need a reliable technical partner to bring their product vision to life.
We keep our team small and our standards high. Every engagement is led by senior engineers with hands-on experience building, scaling, and exiting technology products. No account managers, no juniors learning on your project — just experienced builders focused on shipping.
Let's build something together
Whether you need an interim CTO, a technical co-founder, or a dedicated development team — we'd love to hear about your project.
Location
Amsterdam, The NetherlandsEurope