Create the engineering profession you’re keen on at Pinterest | by Pinterest Engineering | Pinterest Engineering Weblog | Aug, 2023

Pinterest Engineering
Pinterest Engineering Blog

An interview with Behnam Rezaei | Pinterest VP, Engineering

At Pinterest, we’re on a mission to convey everybody the inspiration to create a life they love. For our workers, this extends additional to creating the life and profession they love. The Pinterest Engineering Weblog workforce sat down with Behnam Rezaei to get an inside scoop into the Monetization Engineering workforce, what makes Pinterest completely different and why now is a superb time to affix our workforce.

Becoming a member of Pinterest in March 2023, Behnam Rezaei is Pinterest’s VP for Monetization — Machine Studying Engineering and Knowledge Science based mostly in San Francisco.

Are you able to share extra about your workforce at Pinterest?

What’s the purpose of the workforce? What are the largest alternatives you see? What are you most trying ahead to?

Pinterest has three predominant engineering organizations: infrastructure which is an enabler for varied groups, core engineering is targeted on constructing the core shopper expertise and the final one is expounded to all issues monetization. Monetization is the revenue-generating org for Pinterest.

I lead the Machine Studying (ML) and Knowledge Science groups inside the Monetization org. Our clients are each Pinterest customers and our promoting companions. These days, loads of the knowledge matching is finished utilizing machine studying, and our job is to know what customers and advertisers are on the lookout for and do the matching. We do our job nicely once we match one of the best adverts to the pursuits and intent of our customers.

Our work in Monetization ML is essential to supporting our customers, advertisers, and our enterprise. Related adverts means a greater expertise for our customers, greater ROI for advertisers and extra money we are able to make investments into the enterprise to proceed this flywheel.

I’m actually excited in regards to the developments within the machine studying world and the way they are often utilized to our work at Pinterest. With giant fashions predicting outcomes a lot better, we see loads of alternative in supporting customers’ management over what they see, respecting customers’ privateness selections and serving to them by way of the journey from inspiration to realization (like connecting them with probably the most related adverts). On this evolving, privacy-centric world the place we have to thread collectively personalization in promoting and respect of consumer selections, this space of growing and making use of machine studying fashions for promoting is absolutely difficult (and fulfilling).

What led you to becoming a member of Pinterest?

When reflecting on earlier roles and what led me to Pinterest, I really feel midsize corporations are in a novel spot to each have the ability to transfer quick but in addition have appreciable impression on the earth. My dream job is all the time constructing a small agile group of high technical expertise who tackle huge product issues, transfer quick and create worth for our customers — a startup expertise however giant scale product impression. Pinterest is a spot the place individuals can actually advance their careers by working with good individuals in a collaborative manner whereas studying rather a lot and taking their careers to the subsequent degree.

Pinterest has a really distinctive tradition. Every time there’s an issue, you get loads of openness from varied groups to work collectively and resolve these issues. At greater corporations or organizations, vitality is commonly spent on creating alignment throughout orgs to resolve issues. At Pinterest, it occurs naturally. When a problem arises, cross-functional groups are very open and keen to assist the workforce that raises the problem. It makes you are feeling very supported. That is additionally a part of the key recipe of Pinterest having the ability to transfer quick.

For me, it was additionally necessary to study that Pinterest prioritizes a various and inclusive tradition. I felt that our workforce is a task mannequin for the remainder of the trade even earlier than I joined. Throughout my interview course of, I met with senior leaders throughout ML that emulated the kind of tradition Pinterest has, which was collaborative and inclusive by nature. A few of our most senior information scientists and ML engineers are unimaginable girls who I like and study a lot from every day. This is without doubt one of the causes I used to be very impressed by Pinterest. I don’t assume that these items occur by luck; it exhibits sturdy cultural values. I need to observe, it’s not one thing I take credit score for as I solely lately joined, however it’s one thing I’m actually happy with.

What makes Pinterest Engineering completely different?

For corporations of our measurement (mid-size corporations), we’ve got among the greatest ML infrastructure within the trade and among the most superior ML methods. Firms that do the kind of ML we do are normally a lot bigger than Pinterest. Massive corporations are working at this degree, however they’ve lots of of hundreds of engineers. Whereas at Pinterest, everybody right here has an enormous scope and creates a excessive impression inside our product and throughout our firm. What actually units us aside is each the superior methods and applied sciences and being a midsize firm the place everybody has a huge impact.

What would you say to somebody who’s contemplating becoming a member of the Pinterest workforce?


The primary cause why I be part of any workforce is the individuals. Our workforce has among the smartest engineers and high trade consultants within the discipline of ML, recommender techniques, and product information science. However, we’ve got additionally managed to maintain a collaborative tradition, and everybody you encounter may be very good and welcoming. Oftentimes, if you function at this degree or top of tech, it may be aggressive. Such a collaboration and real connection is uncommon to search out, however you’ll instantly spot it if you be part of Pinterest. We lately interviewed a senior ML chief for a task at Pinterest. They emailed me afterwards that their interview at Pinterest was probably the most technically difficult interview they’ve completed but in addition probably the most welcoming. It put a smile on my face. That’s who we’re.


What units us aside from our friends is the optimistic impression of Pinterest on individuals. Each minute spent on Pinterest is in service of that second of inspiration for our customers. You possibly can see the continuation of that dedication in our recent announcement to help the Impressed Web Pledge.


You need to be someplace you’ll be able to have loads of impression. There’s loads of headspace and greenfield to do excessive impression work right here. The dimensions of the workforce may be very small, so each particular person and their work makes a big distinction to our product. On account of our measurement, there’s loads of velocity in our org, and we transfer quick.

Tech and Science

We’re within the ML area. Individuals need to work on probably the most modern tech. We’re one of many few mid-size corporations with an excellent basis and superior ML applied sciences. We even have a really engineer-driven tradition. Engineers have loads of area to innovate and lead initiatives. Right here, you’ll be able to study and apply the most recent methods throughout giant fashions, Strengthened Studying, consumer representations and embeddings, consumer sequence modeling, privateness ML, and market design. On the information science aspect, we’re shaping the way forward for our product by taking over difficult consumer/product understanding work, causal inference by way of experimentation and different non experimental methods and two sided market evaluation.

When you consider present engineering tendencies, which of them are you most enthusiastic about?

Giant fashions in consumer understanding and recommender techniques

There have been many advances in giant language fashions leading to a wide range of methods to coach and serve these fashions. These methods and advances are actually making their manner into recommender techniques and personalization of shopper merchandise, so it’s thrilling to see how this may translate to higher personalization of adverts, shopper merchandise and evolution of recommender techniques sooner or later.

Multi Activity fashions and their extensions to giant lattice fashions

Within the outdated ML world, you’d design a mannequin for every particular person activity. A few of these technological advances enable us to mix fashions and have these greater fashions handle a number of duties resulting in extra effectivity and generalization of consumer habits.

ML and scaling processes throughout the corporate

Firms like Pinterest sometimes use a mixture of human critiques and automatic techniques to (1) proactively determine policy-violating content material, and (2) overview/take away content material that was flagged by customers (for instance, an advert that violates insurance policies). With current advances in ML, expertise will have the ability to do extra — scaling duties and creating efficiencies — which in the end helps liberate human overview to focus extra on complicated, strategic points.

Generative AI

I’m trying ahead to Generative AI tendencies — how GenAI can be utilized for engineering productiveness and the way it can improve the consumer expertise.

Anything you’d wish to share?

One factor I’d like so as to add is in regards to the uniqueness of Pinterest’s product. Pinterest is a full funnel product. We take Pinterest customers from the second of inspiration by way of the second of execution by way of buying. Promoting and buying is an intrinsic a part of the core product. With different platforms, it doesn’t all the time really feel as genuine. At Pinterest, the advert is in service of what the consumer is got down to do. That’s why at Pinterest, adverts are in service of the consumer expertise.

To study extra about engineering at Pinterest, try the remainder of our Engineering Weblog and go to our Pinterest Labs web site. To discover and apply to open roles, go to our Careers web page.