6 min read

March 8, 2024

Two women advancing generative AI at AWS

Dr. Sherry Marcus, PhD and Lauren Rosenberg, builders behind Amazon Bedrock, share stories about their career journeys and why AWS’s work culture opens doors to exciting career possibilities

Written by the Life at AWS team

Dr. Sherry Marcus, PhD
Director of Amazon Bedrock Science

“It’s important to make sure you find something that you really love to do. Being able to jump up every morning and be excited about what you do just sets the foundation for a successful career.”

At different stages in their Amazon Web Services (AWS) careers, Dr. Sherry Marcus, PhD and Lauren Rosenberg are members of the innovative teams behind Amazon Bedrock, AWS’s fully managed service that offers a choice of high-performing foundation models (FMs) from leading AI companies and Amazon via a single application programming interface. Amazon Bedrock offers a broad set of capabilities for organizations to build generative artificial intelligence (AI) applications with security, privacy, and responsible AI.

As the Director of Amazon Bedrock Science, Marcus is a pioneering leader in responsible AI development at AWS. In addition to launching Amazon Bedrock, one of Amazon’s flagship generative AI services, she has also spearheaded groundbreaking projects like Titan Embeddings, a large language model (LLM) that powers search personalization and retrieval augmented generation (RAG) use cases, and serves as an AI/ML consultant for companies as part of the AWS Generative AI Innovation Center.

Lauren Rosenberg was one of the first software development engineers hired for Amazon Bedrock in the summer of 2022. She was hired as part of the team tasked with infusing responsible AI principles into the Amazon Bedrock service, and now works on a team supporting its third-party generative AI models.

In a discussion leading up to International Women’s Day, Marcus and Rosenberg shared some of their unique career perspectives from behind-the-scenes of one of AWS’s most talked about services. At differing stages in their careers, they share a passion for pushing generative AI’s boundaries and blazing trails for other women to follow in their footsteps.


From the CIA to Amazon Bedrock

With a PhD in mathematics, Marcus didn’t want to be a math professor and saw two possible career paths outside of academia: Wall Street or the federal government. She pursued a career doing large-scale data analytics for the Central Intelligence Agency (CIA), where she received the technical medal of excellence, and other national security agencies.
After years doing analytics for intelligence agencies, she transitioned her skills to the finance sector, leading AI labs and teams in investment banking, hedge funds, and asset management before eventually finding her way to Amazon. She then moved over to AWS to pursue more scientific roles, heading up applied machine learning and then Amazon Bedrock Science.

Throughout her career, Marcus has consistently worked on applying AI and analytics to large datasets.

“It’s important to make sure you find something that you really love to do,” she said. “Being able to jump up every morning and be excited about what you do just sets the foundation for a successful career.”

Marcus recognizes that pathways into leadership roles don’t always come easy for women, but as she looks back on her career, there are three behaviors that stand out as key contributors to her success: speaking up to take on assignments for a more prominent seat at the table, eagerness to learn new skills, and networking.

“Find your voice and speak up. A lot of women don’t speak up when men may raise their hands to take opportunities. Even if it’s a small task to start, don’t be afraid to take it on to get a seat at the table,” Marcus said. “Second, just be curious and learn. Ask a lot of questions and try to get better every day. And the third is to try to find a person, at least once a week, who’s interesting to talk to and learn something from. I frequently talk to technologists at all levels, and I learn something new all the time.”


STEM education from an early age

Rosenberg's passion for computer science blossomed at a young age, inspired by sharing a hometown with the famous 19th- and 20th-century inventor Thomas Edison, where she often visited a museum dedicated to his legacy. Thanks to computer science courses in her public high school in New Jersey, she also had access to formal tech education since about age 14.

"That was a really good opportunity for me to gain access to the tech world, develop that love for programming, and set me up with the tools that I needed to succeed, she said. "I really wanted to be an inventor and in the engineering world from a very young age."

Around the same time in high school, Rosenberg fell in love with studying foreign languages. She now speaks seven languages and has found a way to combine her interests in language and technology.

“I really wanted to work with computers and how they understand human language. This passion drew me to natural language processing and to AWS,” she said.

She said the appeal of working on Amazon Bedrock's Responsible AI program was too good to pass up when AWS recruited her, and she's learned some valuable career lessons since joining AWS in 2021.

“Don’t be afraid to be interdisciplinary and combine things that you care about,” she said. “Be passionate, learn about the things you love, and look for opportunities early and often. Find mentors that you respect and can learn from, and don’t be afraid to be in a room full of people smarter than you. In fact, when you feel like the smartest person in the room, you’ve probably outgrown that room.”

Lauren Fay Rosenberg
Software Development Engineer, Amazon Bedrock

"Find mentors that you respect and can learn from, and don’t be afraid to be in a room full of people smarter than you. In fact, when you feel like the smartest person in the room, you’ve probably outgrown that room.”


Pace of innovation

While their roles within Amazon Bedrock don’t overlap, Marcus and Rosenberg find common ground navigating the whirlwind of building solutions atop a shifting foundation of capabilities.

“The generative AI field is a field that is evolving not daily, but hourly,” Rosenberg said. “Our team has worked really hard, and we have a lot of respect for each other.”

Both Marcus and Rosenberg emphasize AWS’s pace of innovation as an impactful driver in their career aspirations and successes. Marcus focuses on aligning her science team to maintain velocity while advancing long-range plans, while Rosenberg highlights the coordination among engineers to upgrade capabilities week-to-week.

“As a science leader, aligning the technology, getting the right people in the seats, and making sure they have a clear vision is something I’ve worked very hard to address and deliver on,” Marcus said. “Success in this space is about keeping your head down and focusing on delivering meaningful things every day.”


A culture built for connection and mentorship

Both Marcus and Rosenberg credit Amazon's inclusive work culture as empowering for women, especially for women who seek connections and a sense of belonging at work. As a leader and people manager, Marcus believes fostering an environment of active listening and inclusivity is crucial.

“It’s important to really try to understand and put ourselves in the position of other people in meetings, giving them opportunities to speak and just opportunities to be in the spotlight more,” Marcus said.

She appreciates that at its core, AWS and Amazon work culture rewards performance, enabling anyone to grow their career based on their skills and contributions.

As someone earlier in her career, Rosenberg has already found several inspiring women mentors across AWS in just a few short years.

“Amazon is a very big company, and I can say that in the part of Amazon I work in, we have a significant amount of female representation at all levels so you can really work alongside women and then also be mentored by a lot of female leaders,” Rosenberg said. “Supriya Prabhakar taught me to really understand my limits. Mengjia Sun taught me the importance of asking good questions, and Yue Shen taught me that the amount of trust and respect you give your team makes all the difference in the world, which really creates a team culture where everybody can feel respected.”

Rosenberg has also experienced the trust that leaders across Amazon put in more junior employees to help them grow. Her skip-level manager nominated her to mentor Amazon Bedrock’s only intern last year, which Rosenberg said was a nice way to see the growth potential in her own career.

“You’re probably not going to stay in the same role forever, so it’s nice to know that level of flexibility is really possible as an employee here,” she said. “It’s really valuable to know that what I’m passionate about now, and what I’m passionate about in the future, Amazon is here to support that.”

This sentiment is echoed by Marcus, who emphasizes the role of mentorship in helping employees chart their career paths.

“I work backwards with my mentees to help them create a path toward their career goals. For example, if they are interested in moving to a new role, I tell them to look at the qualifications required for that role,” she said. “I then work with them to find opportunities to fill gaps in their existing qualifications, if any, for them to be successful at that new role.”

To meet generative AI training needs, AWS has launched free and low-cost courses for people of all roles and experience levels based on audience—developer and technical, and business and nontechnical. Amazon also aims to provide free AI skills training to 2 million people by 2025.

Interested in exploring open roles in AI and ML? Visit our AWS generative AI jobs page.

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