National Nuclear Security Administration

NNSA celebrates its employees for Public Service Recognition Week 2017

May 10, 2017

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Marcia ShellMarcia A. Shell, Defense Programs, Office of Decision Support

Years of public service: 35

What do you do? I’m a make-it-happen change leader in business strategy and development. My motto is, “Be brave, be bold.”

Why did you choose public service? I started my public service career in 1980 when I joined the U.S. Army. I always wanted to make a difference by putting my values of integrity and honesty into action. Public service is a place where you can fix things and make them better than they were.

What does public service mean to you? My passion is to help others. Public service allows me to inspire those around me through enthusiastic loyalty, deliberate risk taking, and by challenging the status quo. Public service is all about encouragement and creating sustainable high-performing teams. I believe the potential of strong, positive leadership lies within us all.


Crystal TrujilloCrystal Trujillo, Defense Nuclear Nonproliferation, Office of Material Management & Minimization

Years of public service: 7

What do you do? I am the domestic program manager for the Mo-99 Program, where I lead and manage four major Mo-99 Cooperative Agreements and multiple Federal contracts valued at over $300 million. I use project management tools and techniques to monitor, track and manage cost, schedule and scope. I take great pride in the diversity of my career portfolio and applying my engineering background and skills to every role.

Why did you choose public service? I was introduced to the National Laboratories at a very young age and became intrigued with the NNSA mission. Throughout my college career, I would reflect on my future goals and asked myself, “Where do I desire to build a career?” My answer was always with the Federal government. I have always had a passion for helping others and have been drawn to public service. I am honored to be part of the NNSA federal family.

What does public service mean to you? Public service means to serve your country with ambitious determination and dedication.


Jose Rafael BerriosJose Rafael Berrios, NNSA Emergency Operations

Years of public service: 28

What do you do? I am the director responsible for managing NNSA emergency management policy. I work with NNSA sites and facilities to ensure the protection of health, public, and environment in the event of an incident or emergency at a site or facility.  

Why did you choose public service? I took the opportunity to continue to serve the nation and contribute to furthering programs and actions to protect our way of life.

What does public service mean to you? It means selfless service, with an interest in making a positive contribution to the country.


David YoungDavid Young, Counterterrorism and Counterproliferation, Office of Nuclear Incident Response

Years of public service: 11

What do you do? I am the program manager for one of NNSA’s nuclear incident response assets, the Radiological Assistance Program (RAP). I ensure that the RAP teams are ready to deploy on a moment’s notice to any nuclear or radiological emergency domestically, providing assistance to Federal, state, tribal, and local agencies for incidents involving the release of radioactive material. I also serve as an emergency responder, helping to represent the Department of Energy’s interests in various emergency situations.

Why did you choose public service? I chose public service because I want to make an impact for our great country. I wanted to contribute to something that positively affects the world.

What does public service mean to you? I believe public service means working with purpose to improve our society. It means that the work one does is not for personal gain, but it is for the benefit of others: our family, friends, and neighbors.


Angela StephensAngela Stephens, Office of Defense Nuclear Security

Years of public service: 7

What do you do? I’m a program analyst for the resource management and mission support division of the office of Defense Nuclear Security. I assist the security professionals with all logistics-related needs along with a vast number of other duties and tasks. I work closely with all of the individuals in my office to ensure that they have all of the tools and resources they need to do their jobs successfully.  

Why did you choose public service? I come from a family of individuals who chose public service as a career. Growing up, I noticed that even during the hard times they still found the work rewarding. That’s what really drew me to public service.

What does public service mean to you? To me, public service means being able to make a positive contribution not only to my community but to the world as a whole.


Jesse FrankJesse Frank, NNSA Office of Employee Empowerment

Years of public service: 6

What do you do? As an inclusive diversity specialist, I partner with employees throughout the enterprise to foster an even more inclusive NNSA workplace, supporting training, inclusive leadership, and communication. I also support the Federal Employee Viewpoint Survey process. Additionally, I assist with facilitating human-centered design sessions that empower employees to create their own solutions to challenging issues. I also support a team that brings representatives throughout the enterprise together to exchange and implement employee engagement best practices.

Why did you choose public service? I chose public service because I am interested in serving, contributing to a larger cause, and making a difference for other people. I like supporting efforts to promote a Federal workforce that is inclusive of employees who represent the wide array of diverse perspectives of the American public whom we serve.

What does public service mean to you? Public service means using one’s talents and skills to carry out the mission of the Federal government in support of the interests of the American public. It means working hard every day to deliver results that are beneficial to the people we serve.


Loida BegleyLoida Begley, Safety, infrastructure & Operations, Office of Environment and Sustainability

Years of public service: 10

What do you do? I am the deputy director of the Office of Environment and Sustainability. Our team stewards the environment by overseeing NNSA’s nuclear and other waste activities, as well as by proactively managing NNSA’s use of resources to reduce energy and water consumption.

Why did you choose public service? I was working as an engineer in Los Angeles on the team that was designing a light rail train extension for East Los Angeles. After learning about the challenges it took to make the project happen, I thought, “How can I make the decision process better?” I enrolled at the Goldman School of Public Policy at the University of California, Berkeley, and I was happy to gain policy analysis tools that continue to serve me. But knowing that I still wanted to be part of science and engineering, I was challenged to find a good fit. When NNSA came to UC Berkeley, it sounded like a good place for me. After talking to the dean who said that NNSA would be one of the most incredible places I could ever work, I was sold. He was right, and I have been at NNSA ever since.

What does public service mean to you? Public service means giving back to our country every day and making a lasting, positive difference for generations to come. I ask myself “how can I make things better today and for people who will come after me.” I get to work on problems that are unique to the Federal government with dedicated people from all around the country to create new solutions.


Zach SternZachary R. Stern, NNSA Office of the General Counsel

Years of Public Service: 4

What do you do? I provide legal support to the agency. It’s sometimes a challenge to juggle competing demands, practice quality legal skills and also remain dedicated to solving problems sensibly, in a way that satisfies multiple needs. It’s exciting to contribute to successful innovative solutions, no matter how difficult the problem.

Why did you choose public service? I wanted to serve my country, and in my role I believe I can make a difference. Helping people is gratifying, especially when the decisions we’re helping to make carry out national policy to boost national security.

What does public service mean to you? As a public servant, I have a strong sense of pride and purpose. I have the personal satisfaction and fulfillment of knowing that I contribute to protecting the nation and our allies in the work I do every day.