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Building the Startup Compensation Visualization

October 04, 2012

We recently published a company blog post titled Manage Your Tech Career that featured a visualization of “Startup Salary & Equity Compensation” across different job functions, levels, company sizes and regions. The post received more traffic than we anticipated, and a lot of people have asked questions about the tool. Here I’d like to tell… Read more

Bulletproof Rails Asset Caching

February 18, 2011

We’ve been using Rails at Wealthfront for nearly two years and we love it, but there’s no denying that, out of the box, Rails asset caching is broken. Below we’ll identify the problems, define requirements for a successful strategy, and then describe how we meet those requirements at Wealthfront. Background For the uninitiated, the term… Read more

Agile, test-driven development in… MATLAB?

September 23, 2010

I recently decided to take a leave of absence from kaChing to work with the Covert Systems Biology Lab at Stanford on building the world’s first “whole-cell” computational model. The team (size: 3) is extremely talented and packed with domain knowledge and experience, but they’ve never worked on a piece of software this large before. When I accepted the… Read more

Opera takes the cake

May 17, 2010

In Firefox, Chrome, and Safari, timeouts passed to setTimeout are subject to signed 32-bit integer arithmetic overflow. For instance, the following code shows an alert immediately, as if zero or a negative value had been supplied. setTimeout(function() { alert(‘hi’) }, 2147483648); Internet Explorer has the same problem, except they use unsigned 32-bit integers. Try this… Read more

emptyList(), emptySet(), emptyMap()

December 08, 2009

This is the first in a series of posts on under-utilized Java collection types and idioms worth adding to your Java vocabulary. Top 5 Under-utilized Java Collections #1: Empty Collections Every Java programmer has at least once declared a constant to represent an empty collection. It might have looked something like this: static final List<Result>… Read more

MySQL Unicode Escape Sequences

October 27, 2009

While debugging some character encoding issues today, I decided it would help to directly populate a database table with some test strings containing non-latin characters. I hoped the mysql client would, by chance, support C-, Java- or Ruby-style Unicode escape sequences. Alas, it does not. A couple of searches later, all I’d found was my… Read more