The best freelancers
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1685
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System administration · Software and server configuration
Kyiv, Ukraine
1322
25 0
DevOps · System administration
Kharkiv, Ukraine
I can manage with anything. If I don't know how to do something, I'll learn and complete it.
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- I am a System Engineer with more than 20 years of extensive experience in systems design,
administration, support including 5 years working as a DevOps Engineer.
- My expertise encompasses effective planning, design, installation, configuration, maintenance, and optimization of IT systems for achieving high availability and performance.
- I am skilled in working with cloud computing platforms such as Amazon Web Services, creating and configuring the infrastructure using IaC tools, and working with CI/CD process and source control tools.
- Additionally, I have experience as a Chief Technology Officer and Head of IT Department with 6 immediate subordinates and general team of 12 employees. It helped me to develop good planning and organizational skills, so I am confident working independently or as part of a team.
- work as an individual entrepreneur.
CLOUDS
- AWS: EC2, IAM, AMI, S3, VPC, SubNets, SecurityGroup, ACL, Routing, NAT GW, InternetGW, BastionHost, VPN, Route53, Lamda, ALB, ELB, Auto Scaling Group, Parameter Store, SNS, SQS, WAF, CloudFront, CodeCommit, Beanstalk, EKS, Kinesis, Redis
OS
FreeBSD, Linux (Ubuntu, CentOS, AWS Linux)
VIRTUALIZATION
Docker, Docker-Compose, Kubernetes ( K8s ), KVM, VMware ESXi
MONITORING
Nagios, Zabbix, Prometheus
MySQL
optimization, clustering (replication setup, configuration, recovering)
IaC, Config control
Terraform, SaltStack, Ansible
Dev auto tools : Jenkins (groovy scripting), GitLab (CI/CD, configuring gitlab-ci.yml)
Version control : Git
Scripting : Bash, Python
NETWORKING
- NET : TCP / IP stack. CARP
- Routing : OSPF, BGP
- CISCO : vlan, trunk, ports aggregation LACP, static routes configuring, acl.
FAILOVER
RAID, link aggregation; redundant channels and STP, net interfaces aggregation, load balancing and traffic distribution at various levels of the OSI model (CARP, BGP, OSPF, Nginx, HProxyServer, CDN GeoDNS)
TELEPHONY
VoIP server Asterisk integrated with PBX (with PRI) PBX - Samsung iDCS 500 (PCMMC OfficeServManager 3.75) programming, cross patching and laying of SCS. Mitel 3300, wifi Mitel phones
SATELLITE & GSM
Seatel ACU, iDirect modem, FB250, Iridium, Internet/telephony/TV via satellite systems and a GSM operator.
Misc
ELK Stack (Kibana), Jira, FireWall (ipfw, pf, iptables), VPN (OpenVPN, mpd5, netgraph), Samba, Postfix, Exim, Apache, Nginx, php-fpm, FTP
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158
Are you looking for a reliable and responsible Frontend Developer to help you with your tasks or your team?
Hi! My name is Ruslan. I have over 7 years of professional experience and am proficient in the essential web technologies JavaScript, HTML, CSS, etc. During this period, I have gained extensive experience in solving various front-end tasks.
So I’m happy to help you with:
Conversion of concepts and design files into functioning frontend applications
Adaptive, cross-browser, and semantic layout
Development of UI React components using Bootstrap, MUI, Tailwind CSS or without them
Development of JavaScript/Typescript functionality (Vanilla JS, React.js, Next.js)
Performance improvement web-app
Optimize your website loading speed
If you are looking for help with layouts, or some frontend functionality, or need a frontend team member –reach out. I’m happy to help. I have experience working in teams and good communication skills. I’m tactful, responsible, self-disciplined, and with good manners developer.
P.S. If you’re embarrassed by my raid, don’t worry, tell me about your tasks, and we can always agree.
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