Team Selection at Meta

Background: Unlike most tech companies that recruit candidates for specific teams, new employees at Meta need to join a bootcamp program. While finishing up many online trainings, random technical coding tasks, and setting up firmwide logistics, new employees are required to look out for new job openings from the company’s Jobs Tool similar to Linkedin’s jobs panel . Ideally, a new employee should find a team to join within 6 to 8 weeks to graduate from bootcamp.

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Cash Secured Puts

4 outcomes of cash secured puts: Option expires OTM: Keep the premium. Collateral is freed to use. Option gets assigned ITM: Keep the premium. Collateral is used to purchase the underlying stock shares at strike price. You are okay or intented to own the underlying stock, hoping that it will rebounce above the strike price. Rollover: Buy-to-close on an option that’s already ITM, and sell an option that’s in the future, OTM.

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Option Greeks

Delta: \(\Delta\) measures the sensitivity of an option price change in relation to the changes in the underlying stock price. $$ \Delta = \frac{\partial V}{\partial S} $$ , where \(V\) is the option price, and \(S\) is the underlying stock price. Call Delta range: \([0, 1]\). Put Delta range: \([-1, 0]\). The closer Delta is to +1 or -1, the more strongly that the option's premium responds to the change in the stock price.

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MLE Interview Prep

The Role of MLE The role definition of Machine Learning Engineer varies in different companies. Generally speaking, MLEs from a small to medium size company tend to work around MLOps, sometimes on a production model. They usually collaborate with Applied or Data Scientists in the begining of a new ML service, understanding the data and business needs to create a model. Once the model is formulated, the rest of work will be mostly carried by MLEs.

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Probability of Staying of the ZOML People

Joining Zillow Offers venture is one of my most memorable life experience. The team started in late 2018 with a handful of strong engineers and applied scientists. Zillow was also a medium size company of less than 4,000 people. As the ZO business grow, the ZOML (Zillow Offers Machine Learning) team and Zillow both scaled extremely fast. ZOML hired many people. Luckily, there was no layoffs before the ZO wind-down, which happened on Nov. 2, 2021. The company; however, did have a massive layoff (2000+ people) in early 2022.

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