Samer Hassan’s Post

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Vice President, Applied Scientist, Microsoft AI | xGoogle | PhD, LLM, NLP

Over a Decade of Moonshots: From Search to AI Last Friday marked the end of my 13-year journey at Google, a journey that has transformed me as an engineer, leader, and individual, a journey that I am incredibly grateful for! From my beginnings as a fresh grad to impacting billions of lives through contributions to some of Google's most groundbreaking projects. Beginnings with Search Infrastructure Despite the immense challenges and Infra complexity, I was drawn to an ambitious new moonshot of revolutionizing personal content understanding to improve users’ personal journeys. One of my fond achievements was developing the foundation for private instant indexing, which dramatically reduced the indexing overhead and enabled real-time updates. Revolutionizing Search with Question Answering Next, I joined another early Search Moonshot in Question Answering, a groundbreaking effort to revolutionize search experiences beyond the traditional 10-blue links by fulfilling users' insatiable curiosity for knowledge with concise answers. We pushed the boundaries of QA to what seems like unimaginable frontiers (coverage and quality). I am particularly proud of the progress my team, collaborators, and I made on the Short Answers, Knowledge Augmentation, and overall Answer Freshness to identify trusted answers from an increasingly opinionated web and deliver fresh responses to users (a foundation that became especially critical later, during the Covid pandemic). New era with LLMs In 2019, I felt that we may have reached a performance plateau with our QA/AI strategies, and eyeing the larger Search-wide impact, I embarked on my own moonshot (named MUM) to harness the power of emerging LLM technology to address Search users' needs holistically. I recruited and led a team of believers from Search and Research to develop a groundbreaking internal LLMs enabling a significant uplift to Search experiences and quality, marking a new ML era in Search that was recognized with Google's prestigious 2023 Technical Impact Award. Building on MUM success, I joined the Gemini effort, leading internal Gemini x Search efforts and delivering state-of-the-art novel internal variants aligned with Search needs. A Heartfelt Thank You It truly takes a village and my success wouldn’t have been possible without an exceptional team and peers that joined me in this exciting and fruitful journey! Reminded by a note I once read, "You don’t create a culture. You define values, find like-minded people who live those values, and together a culture is born." I am incredibly proud of the culture we nurtured and humbled by the warm, heartfelt, and incredibly touching goodbyes. Thank you outstanding team, exceptional collaborators, beloved leaders, and Google! I will always cherish the memories and friendships I made and take great pride in this beautiful chapter in my career!

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Inderjit Dhillon

Distinguished Scientist at Google, Professor at UT Austin, Ex-VP/Distinguished Scientist at Amazon

2mo

Congrats, Samer! I enjoyed our many conversations, and learnt a lot about the inner workings of the MUM models from you. Best of luck in your new adventure. No doubt in my mind that you will be very successful. Congrats again!

Jason Blythe

User Experience Leader & Designer

2mo

Google will miss you Samer. You’ve had an amazing run and have inspired many. It was great to work with you and looking forward to what you do next.

Mihir Kale

Research Engineer at Meta

2mo

It was fantastic getting a chance to collaborate with you Samer Hassan! I did some of my best technical work on your team and learnt a lot from you. It was incredible to witness how you led MUM into becoming one of the most impactful LLM initiatives at Google. Good luck for the next gig, can’t wait to see what you build :D

It was an incredible honour and a privilege to have been a part of most of these awesome projects with you Samer!  You’ll be a shining light and an inspiring leader wherever you go!

Ali Elqursh

Staff Software Engineer at Google

2mo

Samer, it’s been an absolute privilege working with you for the past seven years. Your mentorship and leadership have significantly shaped my career journey. I’m particularly grateful for your guidance on Question Answering and MUM. Your dedication to pushing the boundaries was inspiring. I wish you all the best in your future endeavors!

Antonio Gulli

Google DE, Sr Director, CTO Office. AI Cloud Search. HAM: HB9IAZ IU5SKA. Angel Investor

2mo

Google is lucky to have you here. You represent the true spirit of Googlers and our culture

Itamar Hata

Senior Staff Software Engineer at Google

2mo

Thanks for the guidance that you gave me at Google and for your huge contributions in LLMs. Success in your new endeavors.

Tsutomu Ohkura

Senior Staff Software Engineer at Google

2mo

Hi Samer, the experience working with you is one of the most memorable time for me. After many years, I still often ask myself "Am I trying hard like Samer?". Good luck in your next chapter and I hope our paths will cross again!!

Nadav Eiron

SVP Cloud Engineering

2mo

Hey Samer! Congrats on the journey. It's been a long and productive one! Best of luck in whatever is next.

Jim Gao

CEO & Co-founder at Phaidra

2mo

Congratulations on 13 impactful years, Samer Hassan ! I was just thinking fondly about how we started in the same cohort all those years ago. Hope you're doing well my friend :)

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