Research and scientific data analysis in elementary particle physics. Accelerator physics, precision electron-positron beams energy calibration techniques. Precision elementary particle mass measurements. Batch processing software design and development for physics applications (C/C++). GRID computing and related security and authentication mechanisms. Large scale Linux based computing farm design, commissioning and administration. Network monitoring and intrusion detection systems. SAN and NAS storage components administration. XEN/KVM based computing environment virtualization solutions. Large scale Openstack based private Clouds: design, commissioning and administration. Ceph based highly resilient clustered data storage systems: design, commissioning and administration. Reliability analysis and engineering for large scale storage and networking systems. Datacenter design, reorganization and operations, network operations. Specialties: Elementary particle physics, software engineering, data center design, Linux system administration, GRID computing, building/operating large scale data processing farms, data storage systems and private Clouds for HEP/NP applications, reliability engineering, datacenter operations, network operations.