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  1. Freelancers

Roman Koreshniak

Innovation without limits
Offer Roman work on your next project.

Ukraine Kyiv, Ukraine
6 months 15 days back
A little busy a little busy
5 Safes completed
1 year back
4 clients
on the service 2 years
Client profile
Freelancer Roman K. — Ukraine, Kyiv. Core skill — Software & Server Configuration, System & Network Administration

Rating

Successful projects
100%
Average rating
No data
Rating
635
Software & Server Configuration
29 place out of 221
System & Network Administration
14 place out of 587
4 projects
System & Network Administration
3 projects
Software & Server Configuration
1 project
Windows
1 project
Python

Language proficiency level

Українська Українська: fluent
Русский Русский: advanced
English English: intermediate
Polski Polski: intermediate

Skills and abilities

Programming

Services

Administration


Outsourcing & consulting

Portfolio


  • Organization of the company’s network on the basis of MicroTik equipment

    System & Network Administration
    Organization of the company’s network on the basis of MicroTik equipment — example of freelancer's portfolio work in category System & Network Administration
    #Settings the #Right-resistant #Tri-level #network on the #MikroTik equipment base.
    Combination of the company’s branches through #IKEv2+#IPsec and #OSPF.
    Configuration of multi-providers output to the internet (4 providers) with load balance.
    Organizing the wireless network for visitors with the #HotSpot banner

  • Installation of an Asterisk office telephone

    Software & Server Configuration
    Installation of an Asterisk office telephone — example of freelancer's portfolio work in category Software & Server Configuration
    #Settings the company’s #Telephone server on the #Asterisk basis.
    Set up the connection of GSM slums, calls through #Telegram and various external provider tricks.
    Integration with CRM.
    Configuration of the self-providing of telephone devices (#Cisco, #Fanvil, #Snort, #Grandstream) in the office network.
    … Set different options for routing calls.

  • Installation of a 3CX phone

    Software & Server Configuration
    Installation of a 3CX phone — example of freelancer's portfolio work in category Software & Server Configuration
    #Settings the company's #telephone server on the basis of #3CX, GSM slides and various external provider tricks.
    #Integration with #DocDream, #Microsoft365 and the company’s website.
    Configuration of the self-providing of telephone devices (#Cisco, #Fanvil, #Snort, #Grandstream) in the office network.
    Set different routing options on the basis of competence/knowledge of languages.

  • Monitoring and logging services on Zabbix and ELK

    Software & Server Configuration
    Monitoring and logging services on Zabbix and ELK — example of freelancer's portfolio work in category Software & Server Configuration
    Set up the #monitoring of the company's servers and services on #Zabbix and set up the event logging on #ELK stack (#Elasticsearch + #Logstash + #Kibana)

  • Private cloud on the basis of Proxmox

    Software & Server Configuration
    Private cloud on the basis of Proxmox — example of freelancer's portfolio work in category Software & Server Configuration
    Distributed (by different data centers of Ukraine and Europe) #private #cloud on the base of #clasters under the management of #Proxmox

Reviews and compliments on completed projects 5

22 September 2024 225 USD
Active Directory + VPN

Quality
Professionalism
Cost
Contactability
Deadlines

I am very pleased with both the work process and the result... Communication is simple and fast, tasks were completed in full and on time. I recommend!

Serhii Komarov | Business Safe Business Safe | Response review

10 August 2024 23 USD
Connect the bot to telephony

Quality
Professionalism
Cost
Contactability
Deadlines

Everything is done well and quickly

Andrey Vernidub | Personal | Response review

8 August 2024 45 USD
Set up Asterisk Free PBX similarly for other trunks.

Quality
Professionalism
Cost
Contactability
Deadlines

Very good performer

Andrey Vernidub | Personal | Response review

19 April 2024 100 USD
Proxmox OS templates

Quality
Professionalism
Cost
Contactability
Deadlines

Thank you for completing. I recommend this specialist, did the task well.

Artem Neforenko | Personal | Response review

12 March 2024 45 USD
VPNs

Quality
Professionalism
Cost
Contactability
Deadlines

The best fan I’ve just seen! The Ultrasound!! I recommend to everyone.

And M | Safe Safe | Response review

Activity

  Latest proposals 10
Freelance project
225 USD
Freelance project
Freelance project
225 USD
Setting up and connecting a SIP phone Personal project
68 USD
Connect the bot to telephony Personal project
23 USD
Freelance project
34 USD
Freelance project
Freelance project
Freelance project
Freelance project
25 USD