Profile

Kamil Wilim

For the past 5 years I have been building modern, scalable applications, portals and websites

Featured Projects

Footballco

goal.com is the largest soccer website in the world reaching 120 million impressions per month

100 million requests per month

Klarna

Klarna is Sweden's largest startup, online payments fintech. Hiring over 5000 people

100+ microservices

Pets4Homes

Pets4Homes is the UK's largest pet classifieds site, 9 million traffic monthly. API work with multiple portals

Built from scratch

Main areas in which I work

Node.js, TypeScript, AWS based applications

Obrazek

Integrations with external services and microservices

Obrazek

SEO, Positioning

Obrazek

My Technologies

Backend

  • Node.js
  • Deno
  • Bun
  • Express
  • Koa
  • Nest
  • Fastify

Frequently Asked Questions

What types of applications and websites have you built?

Over the past 5 years, I have built modern, scalable applications, portals, and websites for a variety of industries. My featured projects include goal.com, the largest soccer website in the world, Klarna, Sweden's largest online payments fintech, and Pets4Homes, the UK's largest pet classifieds site.

What technologies do you specialize in?

I specialize in building applications using Node.js, TypeScript, and AWS-based infrastructures. I also have extensive experience with microservices architecture, integrations with external services, and optimizing for SEO and positioning.

How do you handle scalability in your projects?

Scalability is a key focus in my projects. For example, goal.com handles 100 million requests per month, and Klarna operates with over 100 microservices. I design applications to be highly scalable, ensuring they can handle significant traffic and growth.

Can you integrate external services into existing systems?

Yes, I have extensive experience in integrating external services and microservices into existing systems. My work often involves ensuring seamless communication between different services while maintaining performance and security.

How do you approach SEO and positioning for websites?

I incorporate SEO best practices from the ground up when building websites. This includes optimizing site structure, content, and performance to improve visibility and ranking on search engines, ensuring that the website reaches its target audience effectively.