Arthur Mairink

What do I build?

I build full-stack web applications, SaaS products, APIs, dashboards and internal tools. My work connects the interface people use with the backend services, authentication flows and data that make a product useful. TypeScript, React, Next.js, Node.js and PostgreSQL are part of that work, alongside Rust for tools where performance and resource usage matter.

At Nella Group, I work on custom internal software and integrations that support business operations. My role combines hands-on development with technical leadership: discussing architecture, organizing development work and helping the team maintain reliable systems. I also work independently on software projects, from understanding requirements through implementation and delivery.

Explore my work and engineering notes

Browse the portfolio for products, experiments and open-source contributions, including their context and technology choices.

Read the technical articles for practical discussions of system design, application security, AI-assisted development and debugging open-source software. The articles explain decisions and trade-offs with examples.

Discuss a freelance project if you need a web application, an integration or help evolving an existing system. Share the problem, current setup and constraints so we can identify a useful next step.