Santiago Hernández

Nowadays, working on a data science team involves working with people from different backgrounds, such as mathematicians, economists, actuaries, physicists, and engineers. 作为数据科学团队的技术领导者意味着你不仅要确保研究, insights, and products add value to the company but also that they are reproducible, maintainable, reliable, scalable, performant, testable, and correct.

For this reason, 我开始了一系列计算机科学和软件工程方面的现场技术培训，因为团队的数据科学家没有工程或计算机科学背景.

The training sessions were on topics like algorithmic complexity, programming exercises, environment setups, data structures, object-oriented philosophy, and software architecture.

On the tech side, 这与适当的入职和代码审查相结合，导致了更好的产品和更快的开发时间. On the social side, 我们很高兴地发现，通过学习和讨论共同的兴趣，我们意外地组建了一个更强大的团队.

In the digital marketing industry, 绩效营销平台及其客户必须定义广告活动的目标和支出模式，以确定如何向客户收费(如固定的CPM), CPC, CPI or CPA).

我研究了一种新的消费模式，在这种模式下，客户和平台就最大预算和目标达成一致，比如每次点击或购买的最大成本，然后系统在实现目标并确保双方都满意的情况下，找到向客户收费的最优价格.

我建立了一个统计学习系统来估计移动应用程序用户在应用程序上执行事件的概率. The online algorithm processes over 4 million data points per day to continually fit new data.

这是一个具有挑战性的项目，因为有不同类型的应用程序(如送餐或机票预订应用程序)。, different types of events (like searches or purchases), 延迟的转换反馈(人们通常不会在看完广告后马上预订机票).

Before deploying it to production and using it for revenue optimization, it was important to answer a number of questions:
• What is the minimum amount of data required to fit a good estimator?
• What happens if you stop learning from the data and keep using your current estimator?
• How much are you willing to wait for delayed feedback?
• Of all the events in an app which one do you want to predict?

After working on the problem and considering the possible contingencies, the system was rolled out successfully without any issues.

我设计并搭建了一款面向青少年进行金融教育的手机游戏后端.

The game consisted of a simulation of a rapper's career from the ground up, 在这款游戏中，玩家必须玩迷你游戏并做出正确的决定才能在职业生涯中取得进步.

The player's manager helps him by giving him advice and suggestions to balance leisure time, taking loans for playing in bigger venues and buying swag to increase the avatar's flow. The project was presented at a contest organized by Itau Bank and Red Hat.