Type Safe Bit Fields Using Higher-Kinded Polymorphism
Refering to securities, such as stocks or bonds, is far from standard. We all know Apple’s ticker AAPL; But what about the Oracle of Omaha’s company Berkshire Hathaway? Google says BRKA, Yahoo! BRK-A, Bloomberg BRK/A and Reuters BRKa. Due to these oddities, every serious automated trading system like kaChing’s has at its core a powerful… Read more
Lean Startup TGIF at kaChing
kaChing is hosting a TGIF on August 13th to gather smart people doing hard stuff around wine and cheese. We’ll talk about software architecture, test-driven development, continuous deployment and what not. Few invitations left, contact us if you’re interested!
How to Get a Job at Wealthfront
Getting a job at Wealthfront is not easy, but we would like to help. When approaching Wealthfront, first try to contact through a friend of a friend (LinkedIn is a great way). If you can’t find a connection, contact us then directly via our jobs at Wealthfront mail. Your resume and cover letter in a… Read more
I Can Has Invariant Mapz?
If I had to pick one of the major source of bugs in large refactorings I recently went through, it would probably be the bunch of methods in the java.util.Map interface which are contravariant on the key type. For instance, one can retrieve an element from a map using a supertype of its key type… Read more
We Need More Than One; Why Programming Languages Matter
When we started kaChing’s architecture, one core design principle was set in stone: our systems would be language neutral. We strive to combine the best ideas from all languages and employ a good number of them on a day-to-day basis (Java, Scala, Ruby, Python, bash, Clojure, Erlang and so on). We use simple data formats… Read more
Prezi on Continuous Deployment at kaChing
Here is a yet another presentation on Continuous Deployment at kaChing. The talk focused on continuous deployment and lean startup and was based on Pascal’s and David’s posts. Continuous Deployment on Prezi