Senior Frontend Developer & Architect, ReactJs, Typescript

4/2015 – 10/2016

CTO, responsibility for the technical side of the company. Building technology from scratch and scaling that up in terms of users, data size and tech team. Started as 3 co-founders and grown that up to 20+ people, terabytes of data and many happy customers.

Big Data Architecture
Amazon Web Services (AWS)
Google Cloud Platform
Map-Reduce
Hadoop
Spark
Natural Language Processing (NLP)
Machine Learning
Web Scraping
Full-Stack web development
Fast prototyping
Tech team Management
SQL (PostgreSQL) / No-SQL (MongoDB, Redis, Casandra)
DevOps (Kubernetes, Fab, Ansible, Docker)

Maschinelles Lernen, Big Data, Software Design, Python, Git, System Design, AngularJS, JavaScript

2/2014 – 4/2015

Senior Software Developer: mainly Back-end, Search Engine, Scaling to Millions of Daily users.

Amazon Web Services
EMR (AWS Map-Reduce)
Elastic Search
Web Scraping
High Scale Architecture
Big Data Processing
Natural Language Processing
Machine Learning
Tech-team Leading (3 person)
DevOps
No-Sql (Redis, MongoDB, DynamoDB)

Maschinelles Lernen, Big Data, Software Design, Python, Git, Scala, Cloud Computing

7/2013 – 1/2014

Machine Learning in Semantic Web.

Maschinelles Lernen, Big Data, Data Mining, Weka (Waikato Environment for Knowledge Analysis), Python, Java SE, Java (allg.)

7/2012 – 7/2013

Mobile Development (Android, iOS).
Full-stack Web App Development on Google App engine.

Android, Android Entwicklung, Java (allg.), Cloud Computing, HTML, JavaScript

6/2011 – 6/2012

Mobile Development (Android).
Back-end Development with ASP.Net

Android, .Net, C#, Android Entwicklung, Java SE, Java (allg.), ASP.NET

3/2010 – 6/2011

Mobile Android Development for cutting edge mobile app. The app is about rendering augmented information (3d, 2d, text) on top of camera image. Rendered information is based on geo-location.

Android, Opengl, Python, Android Entwicklung, Java (allg.)

11/2008 – 3/2010

Developing different projects with JAVA.
Developing TV broadcasting app with C.

Java software development in distributed application.
C developer (TV broadcasting application for different platforms).
Bug fixing.
Research and Development Group.

Embedded Entwicklung / hardwarenahe Entwicklung, Subversion, J2EE, Java SE, Java (allg.), CORBA, RPC (Remote Procedure Call)

6/2006 – 11/2008

Mobile and Web Development + Back-end for customers on a freelance basis.

Client Java development.
OpenGL.
Android Java development.
ASP.Net.
.NET

Opengl, .Net, Android Entwicklung, Java SE, Java (allg.), Java ME, ASP.NET