Create the engineering profession you like 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 carry 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 crew sat down with Behnam Rezaei to get an inside scoop into the Monetization Engineering crew, what makes Pinterest totally different and why now is a superb time to hitch our crew.

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 crew at Pinterest?

What’s the objective of the crew? What are the largest alternatives you see? What are you most wanting ahead to?

Pinterest has three predominant engineering organizations: infrastructure which is an enabler for varied groups, core engineering is targeted on constructing the core client 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 prospects are each Pinterest customers and our promoting companions. This present day, plenty of the knowledge matching is finished utilizing machine studying, and our job is to grasp what customers and advertisers are in search of and do the matching. We do our job nicely after we match one of the best advertisements to the pursuits and intent of our customers.

Our work in Monetization ML is vital to supporting our customers, advertisers, and our enterprise. Related advertisements means a greater expertise for our customers, greater ROI for advertisers and extra money we will 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 massive fashions predicting outcomes significantly better, we see plenty of alternative in supporting customers’ management over what they see, respecting customers’ privateness selections and serving to them via the journey from inspiration to realization (like connecting them with essentially the most related advertisements). 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 actually 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 be capable to transfer quick but in addition have appreciable impression on the planet. My dream job is at all times constructing a small agile group of prime technical expertise who tackle huge product issues, transfer quick and create worth for our customers — a startup expertise however massive scale product impression. Pinterest is a spot the place individuals can actually advance their careers by working with sensible individuals in a collaborative manner whereas studying rather a lot and taking their careers to the subsequent degree.

Pinterest has a really distinctive tradition. Each time there’s an issue, you get plenty of openness from varied groups to work collectively and remedy these issues. At larger 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 crew that raises the difficulty. It makes you’re 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 vital 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 among the causes I used to be very impressed by Pinterest. I don’t suppose that this stuff occur by luck; it exhibits sturdy cultural values. I need to be aware, it’s not one thing I take credit score for as I solely just lately joined, however it’s one thing I’m actually pleased with.

What makes Pinterest Engineering totally different?

For corporations of our dimension (mid-size corporations), now we have a number of the greatest ML infrastructure within the trade and a number of the most superior ML strategies. Corporations that do the kind of ML we do are normally a lot bigger than Pinterest. Huge corporations are working at this degree, however they’ve tons of of 1000’s 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 strategies 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 crew?


The primary motive why I be a part of any crew is the individuals. Our crew has a number of the smartest engineers and prime trade specialists within the area of ML, recommender programs, and product information science. However, now we have additionally managed to maintain a collaborative tradition, and everybody you encounter could be very good and welcoming. Oftentimes, whenever you function at this degree or peak of tech, it may be aggressive. One of these collaboration and real connection is uncommon to seek out, however you’ll instantly spot it whenever you be a part of Pinterest. We just lately interviewed a senior ML chief for a task at Pinterest. They emailed me afterwards that their interview at Pinterest was essentially the most technically difficult interview they’ve executed but in addition essentially 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’ll be able to see the continuation of that dedication in our recent announcement to help the Impressed Web Pledge.


You need to be someplace you possibly can have plenty of impression. There’s plenty of headspace and greenfield to do excessive impression work right here. The scale of the crew could be very small, so each particular person and their work makes a major distinction to our product. On account of our dimension, there may be plenty of velocity in our org, and we transfer quick.

Tech and Science

We’re within the ML area. Folks need to work on essentially the most progressive tech. We’re one of many few mid-size corporations with a superb basis and superior ML applied sciences. We even have a really engineer-driven tradition. Engineers have plenty of area to innovate and lead initiatives. Right here, you possibly can study and apply the most recent strategies throughout massive 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 up difficult consumer/product understanding work, causal inference via experimentation and different non experimental strategies and two sided market evaluation.

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

Massive fashions in consumer understanding and recommender programs

There have been many advances in massive language fashions leading to quite a lot of strategies to coach and serve these fashions. These strategies and advances are actually making their manner into recommender programs and personalization of client merchandise, so it’s thrilling to see how it will translate to raised personalization of advertisements, client merchandise and evolution of recommender programs sooner or later.

Multi Job fashions and their extensions to massive lattice fashions

Within the previous ML world, you’ll design a mannequin for every particular person activity. A few of these technological advances enable us to mix fashions and have these larger fashions deal with a number of duties resulting in extra effectivity and generalization of consumer conduct.

ML and scaling processes throughout the corporate

Corporations like Pinterest usually use a mixture of human critiques and automatic programs to (1) proactively establish 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 latest advances in ML, expertise will be capable to do extra — scaling duties and creating efficiencies — which finally helps release human overview to focus extra on complicated, strategic points.

Generative AI

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

The rest 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 via the second of execution via purchasing. Promoting and purchasing is an intrinsic a part of the core product. With different platforms, it doesn’t at all times 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, advertisements 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 website. To discover and apply to open roles, go to our Careers web page.