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HPC Architecture and Performance Engineer

Lawrence Berkeley National Laboratory Published: August 8, 2018
Job Type


HPC Architecture and Performance Engineer - 85386

Organization: NE-NERSC

Discover your future at Berkeley Lab!

Berkeley Lab’s National Energy Research Scientific Computing Center (NERSC, has an opening for a Computer Systems Engineer 3. The incumbent will contribute to an on-going Advanced Technology Group (ATG) group effort to develop a complete understanding of the issues that lead to improved application and computer system performance on extreme-scale advanced architectures. As a team member, they will contribute to efforts for NERSC in evaluating existing and emerging High Performance Computing (HPC) systems by analyzing the performance characteristics of leading-edge DOE Office of Science application codes. This position requires knowledge of computer architecture, with a particular focus future architecture trends and their application to HPC. It’s an exciting time to join the NERSC team!

This position will be hired at a level 3 or 4 contingent upon level of experience, skills, knowledge, and abilities of the successful candidate.

What You Will Do:

• Contribute to benchmarking and research activities at NERSC as part of the ATG group.

• Measure and analyze the performance and parallel scalability of key scientific applications that comprise NERSC's evolving workload on current and future high performance computing (HPC) platforms using a hierarchy of benchmark programs; this requires porting and building complex applications on a variety of different operating systems and hardware. 

• Profile the applications to identify architectural and algorithmic bottlenecks with a particular emphasis on emerging emerging technologies and paradigms.

• Propose remedies to the identified bottlenecks via software restructuring and/or architectural improvement with comprehensive understanding of any trade-offs in design, cost, and software engineering effects. Assess emerging technologies in architecture, algorithms, parallel programming paradigms, and languages to provide input for HPC system procurements.

• Prepare timely reports, papers, and lectures describing significant results for dissemination within NERSC and throughout the broader HPC research community.

• Take a lead role in at least one of the activities described above, take responsibility for complex problems, have frequent interactions with NERSC users to provide technical expertise and will be expected to share results with the broader HPC community by participating in conferences.

• Produce LBNL technical reports and formal papers to document results.

What is Required: 

• Bachelor of Science degree in Computer Science, Computational Science, Computer Architecture, Physical or Biological sciences or equivalent experience and a minimum of eight years experience in HPC.

• Detailed understanding of state-of-the-art tools used to program, profile, and debug parallel scientific applications. (Such as MPI, PGAS, OpenMP, and hybrid-parallel codes using C, C++, and Fortran 77/90 code.)

• Experience in benchmarking, code instrumentation, and performance analysis of parallel applications with emphasis on emerging architectures. Experience with performance profiling tools, hardware performance counters (e.g. Intel Vtune, Cray PAT, or PAPI), and/or code instrumentation systems like Tau.

Experience with construction, porting and/or analysis of large-scale scientific applications to a variety of parallel HPC platforms.

• Proven record of working effectively in a team, seeing projects through to completion, meeting deadlines, interacting with users, and thorough documentation of contributions.

• Experience with computer architecture trends and their application to High Performance Computing (HPC).

• A demonstrated ability to lead technical efforts in a team environment.

• Demonstrated track record of research and technical publications. Ability to write and present technical papers at conferences and other venues to disseminate research work.

• Excellent written and oral communication skills.

Additional Desired Qualifications:

• Experience with the use of script languages and system utilities such as configure, Perl, UNIX shell scripts, and "make."

The posting shall remain open until the position is filled, however for full consideration, please apply by close of business on September 3, 2018.


• This is a full time career appointment.

• Full-time, M-F, exempt (monthly paid) from overtime pay.

• Salary is commensurate with experience.

• This position may be subject to a background check. Any convictions will be evaluated to determine if they directly relate to the responsibilities and requirements of the position. Having a conviction history will not automatically disqualify an applicant from being considered for employment.

• Work will be primarily performed at Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA.

How To Apply

Apply directly online at and follow the on-line instructions to complete the application process.

Berkeley Lab (LBNL, addresses the world’s most urgent scientific challenges by advancing sustainable energy, protecting human health, creating new materials, and revealing the origin and fate of the universe. Founded in 1931, Berkeley Lab’s scientific expertise has been recognized with 13 Nobel prizes. The University of California manages Berkeley Lab for the U.S. Department of Energy’s Office of Science.

Equal Employment Opportunity: Berkeley Lab is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, or protected veteran status. Berkeley Lab is in compliance with the Pay Transparency Nondiscrimination Provision under 41 CFR 60-1.4 ( Click here ( to view the poster: "Equal Employment Opportunity is the Law".

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