Experience

SciNet High Performance Computing Consortium
• Canada
• Research
• 1 - 100 Employee
• High Performance Computing System Administrator

  • Nov 2017 - Present


Institute of Physics Belgrade

• Serbia
• Research
• 1 - 100 Employee

• Research Assistant, HPC System Administrator

  • Jan 2011 - Sep 2017

  - Implementation and optimization of various numerical algorithms for solving complex numerical problems on HPC infrastructures.- Testing, benchmarking, and optimization of parallel numerical libraries.- Advanced visualization of scientific data (in-situ visualization).- Supporting researchers from various international scientific communities in porting and running their application on HPC and Grid infrastructures including profiling, optimization, and improvement of their scalability.- Deployment, administration and maintenance of Linux servers.- Installation and maintenance of various storage and computing services (iRODS data management software, OwnCloud file hosting software, Hadoop cluster, etc.)- Deployment and administration of Serbian largest academic HPC facility PARADOX, as well as Serbian largest Grid site AEGIS01-IPB-SCL.- Member of the administrators team at the Institute of Physics Belgrade responsible for institute’s network and communication center services (Apache based Web servers, mail, DNS, DHCP, EDUROAM).- Coordination of Grid sites within the Academic and Educational Grid Initiative of Serbia (AEGIS): • Testing of new middleware components and their installation process; • Addressing and solving security issues (deploying of security patches and monitoring of the patching status within the national infrastructure); • Maintenance of National Grid Initiative (NGI) ticketing system; • Deployment of monitoring tools on the national level;- Participation in development of Grid monitoring and productivity tools.- Organizing GRID and HPC training events on national and international level and participating as a speaker/trainer.- Active participation in European Commission (EC) FP7 and Horizon 2020 projects related to e-Infrastructures: VI-SEEM, EGI-InSPIRE, HP-SEE, agINFRA, SemaGrow, and PRACE IP projects.- Institute of Physics Belgrade Registration Authority (RA) to AEGIS CA (national GRID certification authority). Show less

• Grid Site Administrator

  • Nov 2008 - Dec 2010

  - Administration and maintenance of Grid sites located at the Scientific Computing Laboratory, Institute of Physics Belgrade.- Deployment, administration and maintenance of Linux servers.- Working on establishment of Serbian National Grid Initiative (NGI AEGIS).- Active participation in EC FP7 Grid related projects: SEE-GRID-SCI and EGEE-III.- Support to users of national and international Grid Virtual Organizations (VOs): aegis, see, env.see-grid-sci.eu, CERN's atlas and cms. Show less