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sofia, bulgaria
It's currently 4:26 PM here
Joined October 25, 2009
0 Recommendations
Nikola K.
@nikolakolev
3.2
3.2
100%
100%
sofia, bulgaria
86%
Jobs Completed
100%
On Budget
69%
On Time
N/A
Repeat Hire Rate
IT Professional
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$120.00 USD
PHP
JavaScript
AJAX
Joomla
CMS
•
$130.00 USD
PHP
JavaScript
Website Design
Graphic Design
Joomla
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$38.00 USD
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$35.00 USD
PHP
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Virtuemart
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Experience
Cloud operations manager
Aug 2016 - Aug 2017 (1 year)
Well balanced technical & management position requiring variety of
soft skills
Coordinating and writing internal processes and procedures.
Setting relevant goals & objectives to the team and it's members.
In charge of the Information Security team in the company (formal
CSO)
Doing regular employee security awareness trainings
Ensuring smooth operation of the infrastructure
In charge of a very complex hiring process including background
checks, pre-screening processes and other.
Senior Systems Administrator
May 2013 - Aug 2017 (4 years, 3 months)
- Responsible for a complex infrastructure which is providing online payment system.
- Ensuring maximum availability of the payment system and all corresponding servers behind.
- Providing 2nd and 3rd level support, including out of working hours.
- Administering Glassfish servers, Apache, MySQL, ldap
,mail & name servers.
- Organising backups and their
recoverability.
Deploying applications, debugging errors and application behaviour.
Administering live and non-live RHEL linux environments.
Technical Team lead
Feb 2015 - Aug 2016 (1 year, 6 months)
As a technical team leader of the 2nd level it team at Safecharge, I was responsible for
a team of 5 it professionals, working on 24/7/365 shift pattern and
ensuring maximum system availability.
- Guiding team members and providing them with the needed technical
training, writing technical documentation and providing availability
reports.
- Leading the hiring process for the team
- Doing yearly PDRs, setting goals & objectives
Education
Telecommunications Bachelor
(4 years)
Qualifications
Cisco CCNA
Cisco
2007
null
Publications
DNS Poisoning
Nikola Kolev
What is DNS Spoofing / DNS cache poisoning?
Each ISP gives users DNS server. If you've already read the article above, you know that DNS-s are like translating machines. DNS-s on your provider does not know all the domain names that exist, instead they consult other DNS servers higher up in the hierarchy. If they do not know the answer, forward the request up and so leads to the top level. To date, the top level are 13 servers that are perhaps the most important on the Internet. They are called root ser
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