Our People

We are a diverse team with a collaborative sense of purpose

Computing 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
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.

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 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.

Punita Sinha
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.

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.

Rob Neely
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, ITO Division Leader at LLNL
Lisa Belk
Information Technology Operations Division Leader

I support the nonproliferation, national security, and energy innovation missions of LLNL’s National Ignition Facility (NIF), the world’s largest and most powerful laser. I enjoy collaborating each day with experts in computer science and laser technology to solve unique and exciting challenges. In addition, I manage the operations for the Department of Defense Technologies Program, which is focused on advanced laser concepts for national defense missions. 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.

Brian Gunney
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
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.

Chris Morrone
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.

Portrait of Maya Gokhale, Distinguished Member of LLNL Technical Staff
Maya Gokhale
Distinguished Member of Technical Staff

I lead a research team of talented computer scientists and students in designing new computer hardware and software methods that can crunch data many times faster than we can today. Our methods apply to computers out in the field used to analyze environmental samples and to supercomputing clusters used to study web and social network data. As a computer scientist, I appreciate working with applications experts who can truly evaluate the benefits and drawbacks of the tools my team creates. The Lab provides a unique opportunity to put our contributions to the litmus test in the real world.

I also like doing backbends and headstands in yoga. You can look at the world from a different perspective!

Portrait of Trent D’Hooge, LLNL Platform Deployment Architect
Trent D’Hooge
Platform Deployment Architect

I help LLNL employees and vendors deploy hardware into production that doesn’t yet exist to the general public. I get to work with the latest and greatest hardware and provide a productive resource to our users. Deploying early hardware always involves new problems that need to be solved, which keeps my job interesting.
 
I also enjoy high-performance driving at race tracks around Northern California.
 

Portrait of Scott Kohn, LLNL Associate Program Leader
Scott Kohn
Associate Program Leader

I run a cyber security research program of about 25 researchers. I split my time between providing technical direction to address interesting cyber security needs and doing cool technical work. I started at LLNL in 1997 but left for a biotech start-up in 2003. I came back a year later because I missed the Laboratory mission, the diversity of interesting work, and the extraordinary people.

For me, the most important things in a job are to work on a mission that matters, work with the latest technology, and work with really smart people. You get to do that here.

 

Portrait of Juan Hernandez, LLNL Computer Scientist
Juan Hernandez
Computer Scientist

I build software tools, analyze code using third-party applications, and develop Web applications that support LLNL’s software quality activities. I spent seven years in the U.S. Army, and I love that the work I do now benefits national security. The software developed at LLNL is more specialized than what you find in most companies. It’s designed to solve a specific problem or to study natural behavior, and the software quality practices must be tailored accordingly.

I’m also active in LLNL’s Amigos Unidos Employee Affinity Group, and I’ve taught onsite Spanish classes.

Portrait of Kathryn Mohror, LLNL Postdoctoral Researcher
Kathryn Mohror
Computer Scientist

I help the fastest machines in the world run efficiently. Failures are a big problem on machines this big, and they can happen at any time during a program run. My job is to keep these failures from impacting application run time so that domain scientists can get the answers they need as quickly as possible. Every day on the way to my office I walk by the machine room and get to see Sierra, one of the fastest computers in the world. There’s really not much that can top that in my book.

I also love gardening, cooking, yoga, running, and cycling.
 

Portrait of Anh Tu Quach, LLNL Computer Scientist
Anh Tu Quach
Computer Scientist

I develop dynamic, data-driven Web apps that help the Lab’s environmental analysts and hydrogeologists plan, track, and pay for the regulatory sampling activity so the Lab remains compliant and open for business. I was initially drawn to LLNL because of the location, job content, and people, and I’ve stayed because of the opportunities. For example, the Lab fully funded my master’s degree. I also have great managers who provide creative freedom, shield me from the politics, and send me to training, like the annual jQuery Conference in San Francisco.

I understand five languages (thanks to watching a lot of kung fu movies). My hobbies include reading, watching kung fu movies, and accidental gardening. I tweet about STEM.
 

Portrait of John Fisher, LLNL Tools Architect
John Fisher
Software Developer

As NIF Engineering Tools Architect, I manage the design and architecture efforts for software development and engineering in the NIF directorate. This includes software development, QA, and configuration management tools. I focus on integrating the latest industry technologies to make a better product and a more efficient development team. It’s a privilege to work with extremely bright people in a variety of technical areas, such as physics, engineering, and NIF operations.
 
Outside work, I love woodworking, cycling, and jazz music.
 

Portrait of Stacy Reed, LLNL Systems and Network Technologist
Stacy Reed
Systems and Network Technologist

I provide deskside support to some of the Lab’s top scientists and engineers. I love working with the IT team—they’re smart, hard-working, high-quality people.

I also have a 25-year old mitred conure named Jonah.

Portrait of Jonathan Allen, LLNL Informatics Scientist
Jonathan Allen
Informatics Scientist

I develop tools that detect and protect against pathogenic organisms that threaten the health of humans. The Lab provides me the opportunity to work on a range of challenging, high-impact problems.

I’m also a very busy father to three children under the age of 4.
 

Portrait of John Wong, LLNL Systems and Network Technologist
John Wong
Systems and Network Technologist

I configure and maintain Windows servers that control login account information and authentication. I work with a great bunch of people who are smart, talented, and fun.

I’m also a retired Marine Reservist who loves exercising and participating in mud runs.

Juan Ramos
Carol Woodward portrait
Julia Ramirez
Portrait of LLNL postdoc Tapasya Patki
Portrait of David Beckingsale
Portrait of LLNL's Peter Robinson
Portrait of Greg Lee, LLNL computer scientist
Punita Sinha
Portrait of Olga Pearce, computer scientist at LLNL
Rob Neely
Portrait of Lisa Belk, ITO Division Leader at LLNL
Brian Gunney
Jeene Villanueva
Chris Morrone
Portrait of Maya Gokhale, Distinguished Member of LLNL Technical Staff
Portrait of Trent D’Hooge, LLNL Platform Deployment Architect
Portrait of Scott Kohn, LLNL Associate Program Leader
Portrait of Juan Hernandez, LLNL Computer Scientist
Portrait of Kathryn Mohror, LLNL Postdoctoral Researcher
Portrait of Anh Tu Quach, LLNL Computer Scientist
Portrait of John Fisher, LLNL Tools Architect
Portrait of Stacy Reed, LLNL Systems and Network Technologist
Portrait of Jonathan Allen, LLNL Informatics Scientist
Portrait of John Wong, LLNL Systems and Network Technologist

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