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Speed up your Android Tests Part 2: End to End Test Filtering

End to end (E2E) tests play a crucial role in ensuring software quality and when implemented effectively, can eliminate the need for manual testing (see our engineering principles). However E2E tests are notoriously slow since they often involve navigating through multiple screens, making API calls, and running on real devices. In our previous blog post,… Read more

How We Standardized Our Lambda Deployments

Like many companies that use the cloud, Wealthfront uses AWS Lambda. And while our lambdas look pristine in the web console and perform their highly specific duties well, there’s quite a bit that happens before our lambdas get to that state–I’m referring to CI/CD. However, depending on the given lambda, the processes to deploy its… Read more

Unlocking Your Potential: Join the New College Graduate Class at Wealthfront and Set Your Career on a Thriving Path!

As you approach the final year of your university program, you have a pivotal decision coming that will shape your career trajectory. Your first job after graduation can be the stepping stone to a fulfilling and successful journey ahead. And when it comes to propelling your career, Wealthfront is among the best places to learn,… Read more

In a Snap! Turbo-charging Our Database Backups

June 02, 2025 , ,

Backing up data is a lot like insurance—we set it up, forget about it, and then panic when we need it most. A weak backup and restore strategy can turn a stressful situation into a disaster. In recent years, we started noticing some weak points in our own backup strategy and knew it was time… Read more

H2 Framework: How We Test Our Automated Investing Infrastructure

April 30, 2025 , ,

At Wealthfront, we build automated investing systems that manage client portfolios with meticulous care by incorporating a large set of rules, optimizations, and input data. Testing such complex systems is inherently challenging; small code changes can interact in unexpected ways, which makes it crucial to have a robust framework that validates our investing decisions. To… Read more

Our Journey to Building a Scalable SQL Testing Library for Athena

Our analytics team plays a vital role in maintaining high-quality data that drives everything from key reports to experiments aimed at improving our products. Ensuring data reliability is critical, and to achieve this, we’ve built a robust SQL testing library for Athena. A strong data foundation isn’t just about accuracy—it’s about reliability. That’s why testing… Read more