Position: Big Data developer (Lead, Architect), Python
Category: Lead
English level: upper
Years of experience: 11

I don't see any troubles to solve your problems!
Client-friendly approach ;)
Cost and performance optimization thinking
Deep background in mathematics (Ph.D. in Mathematics)

Please look on my LinkedIn profile for more details...
OS: Linux, Windows, Docker
DB: MySQL, PostgreSQL, MS SQL, 
Stacks: Big Data, Web Development, Embedded
Cloud: AWS (preferable), Azure
Frameworks: Spark, ExtJS, Django, Zend
Languages: Python, Java, Scala, PHP, Delphi, JavaScript
Others: Kafka, Ambari server, Databricks
I prefer to work with professionals, solve difficult issues and interesting challenges
I don't want to work with beta-customers, which think they're alpha-customers. I just want to keep "human relationships"