Sebastian Weggesser

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Software Devlopment

I have been building software for the web and mobile devieces over the last 20+ years. I gathered experience with a huge variety of technologies. Although being in leadership positions for the last 8 years, I have been hands on and writing code.


Technologies that I have been working with the most over the last years include:


Ruby, JavaScript, Git, SQL, Docker

Rails, React, Node.js

AWS S3, RDS, EC2, SQS, SNS, Lambda, Api Gateway, Route 53


Golang, Elixir, GraphQL, Astro, Terraform, MongoDB, K8S, Keycloak, React Native

Worked with in a production context

C++, Swift, Objective-C, Tensorflow, Java, Groovy, PHP, Ember.js, Backbone.js / Marionette, Cordova


I have built small, mid-size and large scale web applications - ranging from marketing websites to full fledged multi tenant SaaS applications serving various businesses.

I consider myself polyglot and during my career I have adopted a huge variety of programming languages, frameworks, paradigms and patterns. I am familiar with all kinds of different architectures - be it monotlithic full stack apps, service-oriented and microservice systems.


Over various engagements and projects I’ve been working with all kinds of cloud technologies. I have planned transformation initiatives and participated in the execution, for instance:

  • Migrating applications and systems from bare metal into containerized services running on Kubernetes, ECS, etc.
  • Breaking up monoliths into service oriented systems leveraging containerizatiton, serverless functions and message driven architectures.
  • Building CI/CD pipelines and automating deployments
  • Managing infrastructure as code using Terraform, CDK, CloudFormation, etc.

And much more. If you need additional expertise with planning out your cloud infrastructure or additional hands, let’s talk.


I have built various mobile apps - especially in the health care sector. I offer my expertise as a consultant as well as hands on development in these areas:

  • Identifying the right technology stack for your mobile initiatives
  • Building mobile apps using React Native
  • Automating deployment and testing of mobile apps
  • Building CI/CD pipelines for mobile apps

You need help to revamp your mobile strategy or extra hands on deck? Let’s talk.