Developed, implemented and supported solutions that address functional and security challenges of a corporate network dedicated to both development and deployment of cutting-edge biometric solutions
Supported world-wide deployment of enterprise-grade distributed solutions.Responsible for design and implementation of security, monitoring, networking and other solutions within the company
Responsible for day to day user support
Played a key role in supporting the infrastructure that has a development and a production part to it.Technologies involved: Linux, Windows, Sophos UTM, pfSense, Proxmox PVE, LXC containers, Docker containers, Ceph storage, Python, UML and many others.
Cloud Performance Engineer
CloudSpectator
02.2017 - 04.2018
Worked as a cloud performance engineer in a classical startup environment
Duties included designing, implementing and running performance tests on virtual and physical servers as well as monitoring test progression on a 24 hour basis, and data analysis
Technologies in use: Linux, Windows, AWS, Digital Ocean, MS Azure, Rackspace, VMware virtualization suite, KVM, LXC, Docker, Virtuozzo, Python, Django, FIO, Geekbench, CPU2006/2017, HPL and others.
System Administrator
IDC Research, Inc
05.2014 - 05.2016
Worked as a system administrator in a small team responsible for corporate IT services in a company with a global reach
Responsible for key elements of the corporate infrastructure such as IT support ticketing system (RT), VMware ESXicluster, Dell KACE systems management/deployment facilities, Druva inSyncendpoint backup/availability infrastructure and others
Daily tasks included supporting and servicing servers in the datacenter, physical and virtual, supporting the VoIP telephony for a number of offices, fielding unusual helpdesk requests and other tasks
Participated in the 24 hours support rotation
Interacted and worked together with the colleagues worldwide.
System Administrator
ProfitBricks, Inc
08.2012 - 05.2014
Worked as a system administrator in the US Operations/Customer Support group
Interacted with customers world wide on a daily basis
Helped develop and improve operational logistics and day to day support and operations methods and procedures
Supported and troubleshot unique Infiniband-based Cloud infrastructure
Provided technical expertise during all phases of the sales process
Assisted with system migration and integration into the ProfitBricks' KVM-based instances
Worked in a highly diverse and challenging environment continually adjusting to the demands of a very aggressively growing successful high-tech startup.
Administrator/Programmer
National Resource, Imaging Mass Spectrometry
05.2007 - 08.2012
Worked as something akin to a one-person IT department for a small cutting-edge research lab
Supported communication and integration needs between the lab and various collaborators
Planed and implemented the lab's hardware and software infrastructure while at the same time provided everyday support to lab's users
Participated in coding lab's internal utilities as well as the publicly available OpenMIMS Analysis Module
Integrated various software and hardware systems for the lab's needs
When necessary fulfilled general office management duties such as scheduling meetings, placing orders, etc
Played a pivotal role in the lab's transition to a enterprise-level configuration featuring MooseFS-based distributed file storage, functionally segmented network architecture, Subversion-based code control, Bugzilla-based bug tracking, etc
Have a track record of setting up systems and services that sometimes ran for over two years with no downtime
Beyond officially delineated responsibilities maintained my own privately-run VPN solution to provide connectivity to the lab's employees and collaborators outside the lab.
04.2004 - 05.2007
Travel
Educational activities
Occasional freelance projects.Provided technical assistance to several online projects including Cooperative Research and New England JAVA Users Group.In 2005, in the wake of Hurricane Katrina helped coordinate volunteer relief activities in the Gulf and personally participated in those activities.
MAProgrammer/Analyst
ARCON Corporation
07.2001 - 04.2004
Worked as a programmer involved in development and support of the ETMS air traffic management software for the FAA at the Volpe National Transportation Systems Center in Cambridge, MA
Specific area of concentration was the CDMcomponent of the ETMS
The tasks included design and development of new functionality, as well as supporting legacy code
A large codebase together with the need for system reliability provide for a challenging task
The code was originally written in Pascal and later migrated to C
The system was in essence a large transportation management system receiving and reflecting frequent (mostly once-a-minute) updates regarding the status of flights operating over the US airspace
Near realtime requirements were in place for processing and analyzing data which made for an exciting and challenging task.
System Administrator
Boston Internet Group
12.1999 - 04.2001
Performed multiple roles on a daily basis, including those of a senior system designer and developer, Windows NT and UNIX system administrator and web hosting support engineer
Key player in the technology planning and implementation area
As a sole expertise in a number of areas, including object-oriented design and development, networking, network security and systems management, advised other team members on various technology issues
Main tasks included web site backend implementation for clients, in-house product design and implementation as well as day-to-day activities mentioned above
Most of the coding was done using object-oriented technology, with JAVA as a programming language of choice
Provided critical insight which allowed to greatly improve stability and efficiency of the internal systems
Clients included Davox Corporation (now part of Aspect Software), Pilates Store, Lobsters-Online, Inc