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 deliver everybody the inspiration to create a life they love. For our staff, this extends additional to creating the life and profession they love. The Pinterest Engineering Weblog staff sat down with Behnam Rezaei to get an inside scoop into the Monetization Engineering staff, what makes Pinterest completely different and why now is a good time to affix our staff.

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

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

What’s the aim of the staff? What are the most important alternatives you see? What are you most trying ahead to?

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

I lead the Machine Studying (ML) and Knowledge Science groups throughout the Monetization org. Our clients are each Pinterest customers and our promoting companions. At the moment, lots of the data 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 effectively after we match the most effective 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 more cash we will make investments into the enterprise to proceed this flywheel.

I’m actually excited concerning 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 lots of alternative in supporting customers’ management over what they see, respecting customers’ privateness selections and serving to them by 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 person selections, this space of growing and making use of machine studying fashions for promoting is admittedly 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 singular spot to each be capable of transfer quick but in addition have appreciable impression on this planet. 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 folks can actually advance their careers by working with sensible folks in a collaborative method whereas studying lots and taking their careers to the subsequent stage.

Pinterest has a really distinctive tradition. At any time when there’s an issue, you get lots of openness from numerous groups to work collectively and resolve these issues. At larger corporations or organizations, power is usually 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 staff that raises the difficulty. It makes you are feeling very supported. That is additionally a part of the key recipe of Pinterest with the ability to transfer quick.

For me, it was additionally essential to be taught that Pinterest prioritizes a various and inclusive tradition. I felt that our workforce is a task mannequin for the remainder of the business 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 be taught a lot from every day. This is likely one of the causes I used to be very impressed by Pinterest. I don’t suppose that these items occur by luck; it reveals robust cultural values. I need to word, it’s not one thing I take credit score for as I solely just lately joined, but it surely’s one thing I’m actually pleased with.

What makes Pinterest Engineering completely different?

For corporations of our dimension (mid-size corporations), we now have a number of the greatest ML infrastructure within the business and a number of the most superior ML strategies. Firms that do the kind of ML we do are often a lot bigger than Pinterest. Large corporations are working at this stage, however they’ve a whole lot 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 big effect.

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


The primary cause why I be part of any staff is the folks. Our staff has a number of the smartest engineers and high business specialists within the area of ML, recommender techniques, and product information science. Nonetheless, we now have additionally managed to maintain a collaborative tradition, and everybody you encounter may be very good and welcoming. Oftentimes, whenever you function at this stage or peak of tech, it may be aggressive. This kind of collaboration and real connection is uncommon to search out, however you’ll instantly spot it whenever you be 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 achieved 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 constructive impression of Pinterest on folks. Each minute spent on Pinterest is in service of that second of inspiration for our customers. You may 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 lots of impression. There’s lots of headspace and greenfield to do excessive impression work right here. The dimensions of the staff may be very small, so each particular person and their work makes a major distinction to our product. Because of our dimension, there may be lots of velocity in our org, and we transfer quick.

Tech and Science

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

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

Giant fashions in person understanding and recommender techniques

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

Multi Job fashions and their extensions to giant lattice fashions

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

ML and scaling processes throughout the corporate

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

Generative AI

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

The rest you’d prefer to share?

One factor I’d like so as to add is concerning the uniqueness of Pinterest’s product. Pinterest is a full funnel product. We take Pinterest customers from the second of inspiration by the second of execution by 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 person is got down to do. That’s why at Pinterest, advertisements are in service of the person expertise.

To be taught 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.