What skills are these data science start-ups looking for?

Interesting article posted in yCombinator, a community for angel investors. They looked at job ads posted by various analytic-intensive start-ups in 2014.

Here are the skills these start-ups are looking for, according to yCombinator:

Data visualization
Machine learning
Distributed systems
Familiarity with compliance & security standards including PCI DSS, FFIEC, GLBA, ISO 27001, HIPAA, and NIST
Well versed in JSP, JavaScript, JSON, XML (VXML & CCXML)
Experience with source code control tools
2+ years of Java experience
Fluency in Python, Java, C++, or similar (Python strongly preferred)
Production experience with relational databases
Experience with distributed caching techniques
Solid foundation in data structures, algorithms and complexity analysis
Strong programming background in Linux
Passion for security, and a practical and balanced approach to security issues
Familiarity with AWS and MySQL
A knack for solving complex UI & UX problems
Experience building your own MEAN apps
Expertise in building clean, api driven code
Optimizing marketing strategies based on performance metrics.
from backend Python services to slick dashboard features in JavaScript.
Advise clients on strategies to meet their marketing objectives.
You’ve built and launched your own projects.
You have a Github account and you read Hacker News
You know what it means to build lean and iterate.
Node/Express
AWS
MySQL
AngularJS
Objective-C
Java Android SDK
5 years of relevant work experience, including large systems software design and development experience, with knowledge of UNIX/Linux.
A Polyglot with experience applying multiple web development languages to live applications.
well-versed in a Python web stack
strong UI development experience using HTML, CSS and JavaScript/AJAX.
a solid foundation in computer science, you have strong competencies in data structures, algorithms, and software design.