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$20 USD / hour
Flag for BULGARIA
sofia, bulgaria
$20 USD / hour
Det er i øjeblikket 4:34 AM her
Tilmeldt oktober 25, 2009
0 Anbefalinger

Nikola K.

@nikolakolev

5,0 (7 anmeldelser)
3,2
3,2
100%
100%
$20 USD / hour
Flag for BULGARIA
sofia, bulgaria
$20 USD / hour
86 %
Jobs færdiggjort
100 %
Indenfor budgettet
69 %
Til tiden
N/A
Genansættelsesrate

IT Professional

Greetings, I am a systems engineer and IT consultant with more than 9 years of professional experience. During the years I gained many skills, but the ones I am proud of are the self discipline and deep technical analyzing & problem solving thinking.

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Anmeldelser

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Viser 1 - 5 ud af 7 anmeldelser
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0,0
$120,00 USD
Very good communication but was unable to complete the project, apparently it was not his projects but I still recommend this freelancer !
PHP
JavaScript
AJAX
Joomla
CMS
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Flag for Alexandru V.
@Speedycom
•
13 år siden
5,0
$130,00 USD
Work delivered like promissed. Great communicator, on time and really professional. Would definitively hire again.
PHP
JavaScript
Website Design
Graphic Design
Joomla
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Flag for Frederic B.
@titorvis
•
13 år siden
5,0
$38,00 USD
Nikola is a delight to work with. Meticulous project planning, time taken to understand the extact nature of the problem(s) we had, careful layout of the proposed solution and then thorough carrying out of the agreed programme of work. Simply excellent; very happy, high levels of customer care and support. We will certainly be using him again.
D
Flag for Dr R.
@drrobfisher
•
13 år siden
5,0
$35,00 USD
Very friendly and fast - uncomplicated - will come back to you for further projects.
PHP
Joomla
Virtuemart
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Flag for Runweb I.
@runweb
•
13 år siden
5,0
$50,00 USD
very good communication, very good skills, will definitely use again!
Joomla
CSS
CMS
L
Flag for LocalComputerGuy
@LocalComputerGuy
•
14 år siden

Erfaring

Cloud operations manager

SpotMe
aug. 2016 - aug. 2017 (1 år)
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

Safecharge
maj 2013 - aug. 2017 (4 år, 3 måneder)
- 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

Safecharge
feb. 2015 - aug. 2016 (1 år, 6 måneder)
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

Uddannelse

Telecommunications Bachelor

Nov Bulgarski Universitet, Bulgaria 2009 - 2013
(4 år)

Kvalifikationer

Cisco CCNA

Cisco
2007
null

Publikationer

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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