Job Description :
If they have done a mix of Java and python they would do well. Or if they have done projects in .Net and Java or another language that will also work well.

Required Skills:-
At least 5 years of Web Development work part of which is using some sort of server side language and MVC framework such as Ruby on Rails, Django, etc.
HTML, CSS, Javascript
Strong OOP / OOD skills. Enjoys writing clean, dry code. Might know a design pattern or two.
TDD and/or some background in writing automated unit and integration tests
Javascript frameworks (ember, angular, jquery, react, etc
Relational Databases and SQL
Good communication skills and plays well with others
A ravenous curiosity

Nice to Haves:-
Ruby, Ruby on Rails—their primary development platform. They don’t require you to already know it, but you’ll have to become comfortable with Ruby and Rails.
Postgres
Node.js
Angular JS
Redis or other NoSQL solutions
Resque or similar background processing frameworks
Concurrency / Multi-threading
TDD/ BDD, RSpec, Jasmine
Design Patterns / Domain Driven Design
Functional Programming languages, especially Elixir or Erlang.
Development in any other languages: Python, Java, R, Clojure, C/C++, etc.

Perks to working with our client:- Beyond the basics of a competitive compensation package, they have company sponsored happy hours, a relaxed culture, Foosball breaks, and catered meals.