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Our People
We are a diverse team with a collaborative sense of purpose.

Computation is a team of 1,000 smart, collaborative, innovative people who are inspired by working on advanced, game-changing solutions to some of the world’s most difficult problems. They’re world-renowned experts, mothers and fathers, award winners, strategic thinkers, sports enthusiasts, globetrotters, and lifelong learners—people whose personal values motivate them to make a difference in the world.

Learn more below about some of the people who make up our team.

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Juan Ramos
IT Specialist

I’m part of a desktop support team that deploys and sets up computers for users and keeps the computers updated. We troubleshoot and resolve desktop issues, and replace computers that have reached the end of their lifecycle. The biggest perks of the job for me are being able to help people and learn new things. Additionally, working at the Lab provides many opportunities to learn about matters beyond the scope of your duties.

I completed the last classes to earn my bachelor’s degree while I was employed at the Lab. I used public transportation so that I could read and study during my commute.

Don Swanson, Application Developer
Don Swanson
Application Developer

I work with an amazing team of software engineers and information technology professionals, and together we design and implement software solutions that allow the Lab to achieve its mission and goals.

I love being in an environment that has endless opportunities and challenges for individuals to thrive and make a difference.

In my time away from the Lab, I volunteer as a reserve police officer for the city of Livermore.

Carol Woodward portrait
Carol Woodward
Nonlinear Solvers and Differential Equations Project Leader

I work with scientists who simulate various physical phenomena to solve their mathematical models accurately and efficiently on state-of-the-art high performance computers. My work focuses on the mathematical methods and in particular how we find the solution to problems whose solutions evolve in time and have components dependent on each other (nonlinearities).

Outside of work, I like to play classical guitar.

Julia Ramirez
Julia Ramirez
Software Developer

I help LLNL’s Environmental Restoration Department automate and streamline their processes for preparing reports and responding to audits. I love being able to apply software development to environmental restoration efforts. Being part of something positive is a wonderful feeling, even if it’s just cleaning up a small part of world.

Outside of work, I enjoy cooking, wine tasting, attending music festivals and concerts, spending time in my garden, and playing the ukulele.

Portrait of LLNL postdoc Tapasya Patki
Tapasya Patki
Postdoctoral Researcher

I study how applications and system performance can be optimized in future, power-constrained supercomputing environments.

The biggest perk of my job is that I get to interact, work with, and learn from some of the best researchers in the world! Additionally, knowing that my research has a high-impact factor and is contributing toward major advances in computer science is very satisfying.

Outside of work, I love reading, traveling, and playing my violin.

Portrait of David Beckingsale
David Beckingsale
Postdoctoral Researcher

Using smart models and brand-new computer hardware, I work to make the scientific simulations used by researchers at the Lab run as fast as possible, enabling more scientific discovery in less time. When the software I’m developing works as it should, it’s incredibly satisfying.

When I’m not working, I try and make the most of the fantastic weather and rock climbing opportunities here in California. A friend and I recently climbed Half Dome in Yosemite National Park.

portrait of Dean Williams
Dean Williams
Climate Data Scientist

I lead and provide the vision for several international climate data collaborations, including the Earth System Grid Federation. I’m also the lead computer scientist for Livermore’s climate program, where I design and develop data analysis and visualization tools to support high-level modeling.

I love what I do. I truly work at an awesome place with awesome colleagues.

In my free time, I coach track at the high school and youth level. In high school, I was one of the premier track athletes in California.

Portrait of LLNL's Peter Robinson
Peter Robinson
Scientific Software Engineer

I convince some of the world’s largest supercomputers to run one of the world’s most advanced simulation codes in service of our national interest.

At LLNL, I get to work with a lot of really smart people on extremely challenging problems in a really cool application space. Plus, being able to play on some of the world’s largest supercomputers without writing any grants is a huge perk.

I once got to be on NPR’s Car Talk program, during which Click and Clack (Tom and Ray Magliozzi) justifiably called me a knucklehead for allowing my car to be frozen to the street in Boulder, CO.

Portrait of Greg Lee, LLNL computer scientist
Greg Lee
Computer Scientist

I help scientists make sure their simulations run correctly and efficiently on LLNL’s supercomputers. This involves interacting with the code developers and users, working on the simulation codes, supporting third-party tools, and developing our own in-house tools. The goal is to maximize our users’ productivity and ultimately to facilitate good science towards the laboratory’s mission.

Prior to joining the lab, I was a professional tennis player and coach, at one point ranked 1326 in the world. I also recreationally enjoy other sports such as basketball, ultimate Frisbee, and bicycling. Other hobbies include cooking, hiking, and photography.

Tanzima Islam portrait
Tanzima Islam
Postdoctoral Researcher

I study how to improve the performance of scientific applications running on large-scale supercomputers. The knowledge that my efforts are vital in making supercomputing environments a transparent vehicle for advances in basic science is exciting!

In my free time, I love reading books and traveling because both teach me so many new things.

 

Punita Sinha
Computer Scientist and Group Leader

I work with and manage a team of computer scientists who work in software development on large multi-physics codes. These codes model real-world physical phenomenon with sets of mathematical equations. Simulation software allows us to mimic an experiment, the way animation simulates real-world situations or characters in a movie. Since these problems can take days, weeks, or months to run, we speed them up by running pieces in parallel on hundreds of thousands of computer processors—think of your iPhone as a single processor. What is exciting is that we work with state-of-the-art supercomputers, such as Sequoia.

Outside of work, I enjoy gardening, interior decoration, and crafts.

Portrait of Olga Pearce, computer scientist at LLNL
Olga Pearce
Computer Scientist

I am a computer scientist working on speeding up simulations that run on supercomputers. I get to work on real problems, and my work impacts cutting-edge science. 

I am an avid runner. Running lets me enjoy the outdoors, and gives me yet another outlet to be competitive and challenge myself.

Portrait of Bill Oliver, Software Developer
Bill Oliver
Software Developer

I develop software for a visualization package that can be used to render models and animations of how materials react to shock loads. The work involves a lot of scientific programming, requiring me to make extensive use of my degree in mathematics.

The biggest perk in my job is the people I work with and for.

As a child and through high school, I was on track to becoming a concert pianist. 

Portrait of Michael Loomis, Computer Scientist/Animator
Michael Loomis
Computer Scientist/Animator

I help scientists and engineers at the lab communicate their ideas through animation using the same software and techniques as the movie/special effects industry.

My job allows me to be creative in a technical field.  I get to work on a number of projects and see what others are doing across the Laboratory. There are fresh challenges to meet at every turn.

Outside of work, my passion is music. I play lead guitar in a rock band. I also built a recording studio in my home.

Rob Neely
Associate Division Leader and Advanced Architecture Software Development Lead

Imagine computers so powerful and intricately programmed that they allow us to understand the impacts of explosives without blowing anything up, optimize a product’s design before the first metal piece is forged, or unravel the physics mysteries at a star’s center. Making that vision a reality requires the efforts of thousands. I am part of a vast nationwide team working to build the hardware and software ecosystem that allows us to push the frontiers of computing while also making it approachable to a broader audience.

I also recently started playing the piano for fun.

Portrait of Lisa Belk, IT Manager for GS-CAD at LLNL
Lisa Belk
Information Technology Manager

I support the nonproliferation, energy security, intelligence, and defense missions of LLNL’s Global Security organization. I enjoy collaborating each day with experts in computer technology and cyber security teams to solve unique challenges. I’m also part of institutional committees that set the direction for the growth of IT services to meet customer needs and reduce the cost of doing business at LLNL.

 I really enjoy working on exciting and varied projects that have a direct impact on national security initiatives.

I recently published my first children’s book, The Adventures of Moe the Moose.

Brian Gunney
Computer Scientist/Math Programmer

I develop algorithms to help scientists run high-resolution simulations on supercomputers. Modern supercomputers and scientific math models have such different inherent characteristics that scientists can’t simply plop the model onto the computer and assume the problem will be solved efficiently. Our algorithms fit the math model to the computer and—the most interesting part—adapt the fit to the problem.

At LLNL, I get to work with some of the brightest scientists in the world, and I have access to the fastest computers, too.

I also volunteer for AFS, a world-wide high school student exchange organization.  I support students and their host families, and I help train other support volunteers.

Jeene Villanueva
Software Developer

Computational Engineering Group Leader, ASQ Division/Enterprise Modeling Data Applications Lead/Computer Scientist

I work on a dynamic, data-driven, web-based application used for calculations on stockpile life-cycle, infrastructure transformation, critical skills, data trends, and budget projections. The best part of my job is working with intelligent people who value the challenging work that we do, but understand that work-life balance is important.

I also enjoy scrapbooking, visiting science museums with my family, and trying new restaurants.

Portrait of Chris Morrone, LLNL Computer Scientist
Chris Morrone
Computer Scientist

I work on some of the world’s fastest, most cutting-edge supercomputers. It takes over 20,000 hard drives to store the data that feeds our largest computer, Sequoia. As team lead for Lustre development, I work on the software that coordinates all of those individual moving parts into a single, fast, reliable file storage system.

I also like cooking, gardening, and tinkering with computers and electronics.

Don Swanson, Application Developer
Carol Woodward portrait
Julia Ramirez
Portrait of LLNL postdoc Tapasya Patki
Portrait of David Beckingsale
portrait of Dean Williams
Portrait of LLNL's Peter Robinson
Portrait of Greg Lee, LLNL computer scientist
Tanzima Islam portrait
Portrait of Olga Pearce, computer scientist at LLNL
Portrait of Bill Oliver, Software Developer
Portrait of Michael Loomis, Computer Scientist/Animator
Portrait of Lisa Belk, IT Manager for GS-CAD at LLNL
Portrait of Chris Morrone, LLNL Computer Scientist