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Identifying Non-Heap Class Leaks

April 18, 2016

At Wealthfront, a significant portion of our backend applications are written in Java. The Java Virtual Machine (JVM) uses Garbage Collection (GC) for memory management, this forces us to pay close attention to its characteristics and behavior. Every JVM service we run accumulates JVM and application-level statistics, spools these metrics into a statsd server, and… Read more

Build System Integration Testing with Chef

April 05, 2016

At Wealthfront, we’re constantly pushing to use cutting edge technologies to take advantage of new language features, improved compilers, new libraries, and the like. Downtime in our build system would be a big problem with how often we like pushing new code to production, so we want a process that would allow us to upgrade parts… Read more

Joining Wealthfront as a DevOps New Grad

June 24, 2014

I started at Wealthfront two weeks ago, and I can already say with little doubt that it was the best opportunity for me. Having taken Andy’s career advice, I was determined to start my career in the Bay Area and wanted to join a mid-sized company with momentum. I had followed the fintech space for… Read more

DevOps at Wealthfront

November 12, 2013

A DevOps engineer starting a new position fully expects to be handed over keys to a custom model helicopter (aka company’s infrastructure) and encouraged to take a daring flight on day one. No two helicopters are quite the same, and flying a different model is not quite as intuitive as riding a new custom bike…. Read more

Continuous Deployment: API Compatibility Verification

March 19, 2013

We haven’t said much about our continuous deployment system recently. Mostly that’s because there hasn’t been much to say. We invest in systems and infrastructure through a process called proportional investment: we spend time on areas that cause us problems and our deployment infrastructure has performed well, requiring little incremental investment. However, recently we made… Read more

Hurricane Sandy puts YAGNI to the test

November 13, 2012

On Sunday night, Oct 29th, we learned that most US equities markets would be closed the next day due to Hurricane Sandy. This is very unusual: the only times the market has been closed since the four days following 9/11 have been the National Days of Mourning following the deaths of Presidents Reagan and Ford,… Read more