Experience

SuperDuperDB

• Germany
• Software Development
• 1 - 100 Employee

• Head of Cloud and Infrastructure Services

  • Oct 2023 - Present



ICS-FORTH

• Greece
• Research
• 100 - 200 Employee

• Postdoctoral Researcher / MSCA Individual Fellow

  • May 2020 - Oct 2023

  • Converged Cloud and HPC Infrastructures: Successfully integrated Kubernetes with existing Slurm clusters, enabling researchers to run Kubernetes applications on powerful HPC sites. Received recognition from two PRACE datacenters; • Hybrid Workflows: Blending Shared FS and Object Storage: Developed distributed workflows that seamlessly combined MPI-based simulations with cloud-based data analysis. The computation was based on a shared filesystem, and object storage acting as an intermediate repository facilitated the seamless data movement between on-premises systems and cloud-based resources • Kubernetes-Based Testing Automation Platform: Implemented a scalable framework for the automated performance and resilience testing of complex distributed systems on Kubernetes (https://frisbee.dev}). Received recognition from Fortune 50 industry peers for the platform's innovative design; • Kubernetes-Based Emulator for IoT Environments: Engineered a Kubernetes emulator that replicated the complexities of tiered IoT networks, enabling researchers to simulate diverse real-world scenarios, such as geo-distributed storage systems; • Translating Vision into EU Proposals: Led multidisciplinary teams in brainstorming and requirement-gathering sessions to craft comprehensive EU project proposals. As of today, I have led the preparation of three proposals in the domains of AI medicine, Earth Observation, and Cloud-to-Edge Continuum. • Contribute patches to Singularity/Apptainer for signing images with X509 certificates, and performing Online revocation checks via OCSP protocol. • Tactical member of MedPerf Working Group (Open Benchmarking Platform for Medical Artificial Intelligence using Federated Evaluation) Show less



SensYnc

• Netherlands
• Medical Equipment Manufacturing

• Lead Software Engineer

  • Apr 2019 - Apr 2020

  (acquired by Multiwave Technologies AG) (acquired by Multiwave Technologies AG)



CEA

• France
• Research Services
• 700 & Above Employee

• Doctoral Research Fellow (MSCA ITN)

  • Mar 2016 - Feb 2019

  • Prototype an SDK for building on-demand storage systems with programmable I/O path and variable consistency. • Prototype an SDK for building on-demand storage systems with programmable I/O path and variable consistency.



Barcelona Supercomputing Center

• Spain
• Research Services
• 700 & Above Employee

• Visiting Researcher

  • Jan 2018 - Mar 2018

  • Prototype a distributed filesystem with programmable I/O path and variable consistency. • Prototype a distributed filesystem with programmable I/O path and variable consistency.



ICS-FORTH

• Greece
• Research
• 100 - 200 Employee

• Visiting Researcher

  • Sep 2017 - Dec 2017

  • Prototype a library for externalizing data and control flow from the application. • Prototype a library for externalizing data and control flow from the application.



Hellenic Army

• Greece
• Armed Forces
• 500 - 600 Employee

• Senior System Engineer

  • Jun 2015 - Feb 2016

  • Modernize the physical infrastructure into a virtual counterpart compliant with ISO/IEC 27001:2013. • Prototype an in-house backup system for databases, firewalls, mail servers, and workstations. • Day-to-day sysadmin: Account and Storage management, Backups, Monitoring • Modernize the physical infrastructure into a virtual counterpart compliant with ISO/IEC 27001:2013. • Prototype an in-house backup system for databases, firewalls, mail servers, and workstations. • Day-to-day sysadmin: Account and Storage management, Backups, Monitoring



ICS-FORTH

• Greece
• Research
• 100 - 200 Employee

• Graduate Research Assistant

  • Oct 2011 - Mar 2015

  • Prototype incremental backup system based on acquired ext4 journal. • Develop an adaptive decision-making system for CEC (Continuous Eventual Checkpoint) • Prototype incremental backup system based on acquired ext4 journal. • Develop an adaptive decision-making system for CEC (Continuous Eventual Checkpoint)



CERN

• Switzerland
• Research Services
• 700 & Above Employee

• Junior Research Fellow

  • Mar 2012 - Feb 2014

  • Prototype a multi-source and transaction-aware logging mechanism for CERN Advanced STORage (CASTOR). • Prototype spooling for CASTOR to reduce the disk-to-tape I/O rate gap. • Prototype inline scrubbing at the level of the tape drive (ISO16363:2012). • Fabricate demo for tape library robotic arm movement for CERN open days. • Prototype a multi-source and transaction-aware logging mechanism for CERN Advanced STORage (CASTOR). • Prototype spooling for CASTOR to reduce the disk-to-tape I/O rate gap. • Prototype inline scrubbing at the level of the tape drive (ISO16363:2012). • Fabricate demo for tape library robotic arm movement for CERN open days.



CERN

• Switzerland
• Research Services
• 700 & Above Employee

• Technical Student

  • Mar 2010 - Apr 2011

  • Prototype a distributed and fault-tolerant Security information and event management (SIEM) for LHCb Operations • Prototype a distributed and fault-tolerant Security information and event management (SIEM) for LHCb Operations



ICS-FORTH

• Greece
• Research
• 100 - 200 Employee

• Undergraduate Research Assistant

  • Jun 2008 - Jan 2010

  • Simulation on channel assignment for noisy wireless topologies. • Testbed for profiling the performance and reliability of noisy wireless topologies. • Simulation on channel assignment for noisy wireless topologies. • Testbed for profiling the performance and reliability of noisy wireless topologies.