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New Employee Profiles - June2015

June 1, 2015

Goran Pejovic

Goran Pejovic, ESnet

As the newest Computer Systems Engineer on ESnet’s infrastructure team, Goran Pejovic will be provisioning and maintaining Linux boxes—including installation, configuration, patching and more.

Pejovic comes to ESnet with more than a decade of experience working with Linux servers. He spent the last six years, working as a full-time IT Consultant & Linux System Administrator for Information Technology Network (ITN) in Montenegro, where he supported a production environment of Linux servers, VMware ESXi, and network and security infrastructure. He also monitored and analyzed system performance and security, as well as provided and implemented recommendations to make improvements as necessary.

“I became interested in networking and computers after my first interaction with a PC, when I was six or seven years old. I was interested in the way they worked and over time, that interest grew and it’s still growing,” says Pejovic.

A native of Niksic, Montenegro, Pejovic earned his Bachelors of Science degree in Information Technology at the University Mediterranean in Podgorica, Montenegro. He first visited San Francisco last year as a tourist and enjoyed the trip so much that he decided to look for career opportunities in the Bay Area. 

In his spare time, Pejovic likes producing electronic music and going to music festivals, although he has yet to experience one in the U.S. He also enjoys hiking, high quality whisky and whine, as well as swimming and paintball.

Amartya Banerjee

Amartya Banerjee, CRD

This month, Amartya Banerjee joins CRD’s Scalable Solvers Group where he will be developing methods for accurate and efficient quantum mechanical simulations of large atomistic systems, which contain several thousands of atoms. These methods will be used to carry out large-scale simulations of lithium battery materials, particularly of solid-electrolyte interfaces in these batteries. This work will provide instrumental insights into the performance and safety of future batteries.

Banerjee will also develop novel simulation methods for computing the electronic and optical properties of certain nano-structures—like nano-tubes, nano-ribbons, nano-wires, etc. These methods will someday help researchers discover and characterize new energy materials.  

“I did not own my first PC until I was about 13 or 14, but I always liked programming. I even spent some time in college learning about systems programming and networking. My first serious exposure to scientific computation was during my undergraduate thesis project when I got the chance to work on computational fluid dynamics simulations of high-speed flows,” says Banerjee. “My Ph.D work allowed me to delve into scientific computation more seriously.”

A native of Kolkata, India, Banerjee earned his Bachelors of Science degree in Aerospace Engineering at the Indian Institute of Technology in Kharagpur, India. Thereafter, he moved to the United States to attend the University of Minnesota, where he earned Masters Degrees in Aerospace Engineering and Mechanics, as well as Mathematics. He stayed in Minneapolis to complete his Ph.D. in Aerospace Engineering and Mechanics, and then migrated west to California for this position at Berkeley Lab.

An amateur photographer, Banerjee spends much of his free time taking pictures and honing his craft. He also enjoys reading novels, as well as popular science and current affairs articles.

Colleen Heinemann

Colleen Heinemann, CRD

This month Colleen Heinemann joined CRD’s Visualization Group as a Computer Systems Engineer 1.

Before coming to Berkeley Lab, Heinemann participated in the National Science Foundation (NSF)-funded Blue Waters Student Internship Program for 2014-2015. This yearlong undergraduate internship program shows students how to apply high performance computing to problems in the sciences, engineering and mathematics. The program also provides a student stipend totaling $5000 and a two-week intensive high-performance computing workshop.

“I've always been interested in computing, but my internship with the Blue Waters supercomputer was when I really became interested in high performance computing,” says Heinemann. “Through this program, I was exposed to parallel computing, which has been beneficial in my current position at Berkeley Lab. I also attended SC14 as a Broader Engagement scholar, which enhanced my understanding of supercomputing and high performance computing and exposed me even more to visualization.”

Born and raised in Peoria, Illinois, Heinemann earned her undergraduate degree in computer science and interactive media at Bradley University, which is located in her hometown. After graduation, she migrated west to Northern California to work at Berkeley Lab.

In her spare time, Heinemann enjoys playing tennis, watching movies, and hanging out with friends.

About Computing Sciences at Berkeley Lab

High performance computing plays a critical role in scientific discovery. Researchers increasingly rely on advances in computer science, mathematics, computational science, data science, and large-scale computing and networking to increase our understanding of ourselves, our planet, and our universe. Berkeley Lab’s Computing Sciences Area researches, develops, and deploys new foundations, tools, and technologies to meet these needs and to advance research across a broad range of scientific disciplines.

Founded in 1931 on the belief that the biggest scientific challenges are best addressed by teams, Lawrence Berkeley National Laboratory and its scientists have been recognized with 16 Nobel Prizes. Today, Berkeley Lab researchers develop sustainable energy and environmental solutions, create useful new materials, advance the frontiers of computing, and probe the mysteries of life, matter, and the universe. Scientists from around the world rely on the Lab’s facilities for their own discovery science. Berkeley Lab is a multiprogram national laboratory, managed by the University of California for the U.S. Department of Energy’s Office of Science.

DOE’s Office of Science is the single largest supporter of basic research in the physical sciences in the United States, and is working to address some of the most pressing challenges of our time. For more information, please visit energy.gov/science.