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 staff, 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 good 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 Information Science primarily based in San Francisco.

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

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

Pinterest has three principal engineering organizations: infrastructure which is an enabler for varied groups, core engineering is concentrated on constructing the core client 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 Information Science groups throughout the Monetization org. Our prospects are each Pinterest customers and our promoting companions. These days, quite a lot of the knowledge matching is completed utilizing machine studying, and our job is to know what customers and advertisers are searching for and do the matching. We do our job nicely once we match the very 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, increased ROI for advertisers and more cash 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 a lot better, we see quite a lot of alternative in supporting customers’ management over what they see, respecting customers’ privateness decisions and serving to them by means of the journey from inspiration to realization (like connecting them with probably the most related advertisements). On this evolving, privacy-centric world the place we have to thread collectively personalization in promoting and respect of consumer decisions, this space of growing and making use of machine studying fashions for promoting is de facto 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 firms are in a novel spot to each have the ability to transfer quick but additionally have appreciable affect on the earth. My dream job is all the time constructing a small agile group of prime technical expertise who tackle large product issues, transfer quick and create worth for our customers — a startup expertise however massive scale product affect. Pinterest is a spot the place folks can actually advance their careers by working with good folks in a collaborative means whereas studying quite a bit and taking their careers to the following stage.

Pinterest has a really distinctive tradition. Each time there’s an issue, you get quite a lot of openness from varied groups to work collectively and remedy these issues. At larger firms or organizations, vitality 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 crew that raises the problem. 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 necessary 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 ladies who I love and be taught a lot from every day. This is among the causes I used to be very impressed by Pinterest. I don’t assume that this stuff occur by luck; it exhibits sturdy cultural values. I wish 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 totally different?

For firms of our measurement (mid-size firms), we have now a few of the greatest ML infrastructure within the business and a few of the most superior ML methods. Corporations that do the kind of ML we do are normally a lot bigger than Pinterest. Huge firms are working at this stage, however they’ve lots of of hundreds of engineers. Whereas at Pinterest, everybody right here has an enormous scope and creates a excessive affect 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 crew?


The primary purpose why I be a part of any crew is the folks. Our crew has a few of the smartest engineers and prime business specialists within the area of ML, recommender techniques, and product information science. However, we have now additionally managed to maintain a collaborative tradition, and everybody you encounter could be very good and welcoming. Oftentimes, if you function at this stage or peak of tech, it may be aggressive. The sort of collaboration and real connection is uncommon to seek out, however you’ll instantly spot it if you be a 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 carried out but additionally probably the most welcoming. It put a smile on my face. That’s who we’re.


What units us other than our friends is the constructive affect 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 wish to be someplace you’ll be able to have quite a lot of affect. There’s quite a lot of headspace and greenfield to do excessive affect 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 measurement, there may be quite a lot of velocity in our org, and we transfer quick.

Tech and Science

We’re within the ML house. Individuals wish to work on probably the most progressive tech. We’re one of many few mid-size firms with a very good basis and superior ML applied sciences. We even have a really engineer-driven tradition. Engineers have quite a lot of house to innovate and lead initiatives. Right here, you’ll be able to be taught and apply the newest methods throughout massive fashions, Bolstered Studying, consumer representations and embeddings, consumer sequence modeling, privateness ML, and market design. On the information science facet, we’re shaping the way forward for our product by taking over difficult consumer/product understanding work, causal inference by means of experimentation and different non experimental methods and two sided market evaluation.

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

Giant fashions in consumer understanding and recommender techniques

There have been many advances in massive language fashions leading to quite a lot of methods to coach and serve these fashions. These methods and advances are actually making their means into recommender techniques 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 techniques sooner or later.

Multi Job fashions and their extensions to massive 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 consumer conduct.

ML and scaling processes throughout the corporate

Corporations like Pinterest sometimes use a mixture of human opinions 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 finally helps release human overview to focus extra on advanced, 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 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 means of the second of execution by means of procuring. Promoting and procuring 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, advertisements are in service of the consumer expertise.

To be taught extra about engineering at Pinterest, take a look at 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.