Senior Fullstack Developer

Reliable software development services delivering professional-grade applications

My name is Oliver Kießler and I am a freelance fullstack developer from Cologne, Germany. I specialize in web applications (Angular, Ruby on Rails) and API backend solutions (NodeJS, AWS Lambda & Amplify, Serverless Framework / AWS SAM, Java).

As an experienced fullstack software developer and IT consultant, I independently take on projects/assignments on a freelance basis or support your company as part of your team. more...

My services

Featured projects