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ActiveJsonEntity and ActiveRecord’s shared DNA

June 26, 2013

New to ActiveJsonEntity? Check out the introduction. As a new engineer at Wealthfront, I’ve been getting my hands dirty migrating our existing hand-written models to ActiveJsonEntity models. It’s been a tremendous way to get to know our existing codebase and appreciate the power of ActiveJsonEntity. Coming from a traditional Rails background, I wanted to make… Read more

ActiveJsonEntity: Bridging the gap between Rails and Java

June 13, 2013

We have a service-based architecture here at Wealthfront. Instead of our Rails layer talking to a database, it makes RPC calls over HTTP to a collection of services that send and receive JSON. Without a database we can’t use ActiveRecord, and all the niceties it provides. In their first incarnation, our models were plain Ruby… Read more

Move cash faster

May 31, 2013

I joined Wealthfront last week as a new engineer, and I recently wrapped up my first meaty development project within the backend trading system written in Java. The task was to modify the logic used for client withdrawals. Specifically, add logic to first pull from any incoming deposit money that is sitting in escrow, waiting… Read more

The first week at Wealthfront

May 17, 2013

I just finished my first week at Wealthfront. In my first three hours I fixed a small production bug. By the end of the week, I had shipped my first feature: the backend code to serve up the commit statistics feeding the visualization at our new engineering page. Moving this quick was empowering, and it… Read more

My First Day

January 08, 2013

Today was my first day at Wealthfront. It was awesome. Let me explain a little about myself, so you understand my full meaning. I’m a product guy (Wealthfront’s first), and product guys are supposed to understand the user and the business. Strictly speaking, we aren’t supposed to write code. Even if we’re totally uncloseted geeks…. Read more

Moneyball: Using Modern Portfolio Theory To Win Your Fantasy Sports League

January 17, 2012

Football is pretty amazing. A few short months ago, we weren’t even sure if we were even going to have a season. Now, we have 49er-mania taking over the Bay Area, the possibility for a rematch of one of the greatest superbowls ever between the Giants and the Patriots, and Ray Lewis, well, he’s just… Read more

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