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Dmitro — techsd
Embedded systems and microcontrollers · Geographic information systems
Ukraine Kharkiv, Ukraine
394

I lived in the wonderful city of Kharkiv. I love the scientific method of learning Richard Phillips Feynman Skills Git, RTOS, Networking, HTML, CSS, Apache, Linux, API, pentesting, CI/CD, Python, Kubernetes, TCP/IP, Docker, Metasploit, Qt5, Reverse Engineering, AWS, DevOps, Nginx, Ubuntu, DNS, VPN, Jenkins, Postman, JSON, Terraform, Jira, GCP, PostgreSQL, Gitlab CI, Penetration, REST API, Network administration, VirtualBox, System Administration, YAML, SOAP, computer hardware, Django, HAProxy, load balancing, XML, Windows, Mikrotik, DHCP, RDP, Wordpress, bash, Blockchain, Cryptocurrency, Embedded interfaces, microcontroller PIC Atmega, ARM MCU embedded, API orchestration, Architect database, Android,
  • avr
  • breakjail
  • C/CPP
  • docker
  • kubernetes
  • Metasploit
  • PCB
  • reverse engineering
  • stm32

System administration · DevOps
Ukraine Rovno, Ukraine
348

- Development, design, maintenance of the computer networks, computer equipment, network services, improvement and analysis of existing network, server, and service infrastructure; - Users’ technical and software support; - Setting up and maintaining Microsoft based operation systems WinXX, Windows Server 20XX; - Setting up and maintaining Linux based operation systems Debian, Ubuntu, CentOS, and Unix-like FreeBSD; - Administration of the: MTA(Dovecot, Postfix, Exim4, MS Exchange Server), FTP, SQL(MS SQL, MySQL, PostgreSQL, MongoDB), LAMP(Apache, Nginx, PHP), HAProxy, DNS, DHCP, NPS, DFS, NAS, VPN; - VoIP servers; - AD, LDAP, AAD; - Extensive experience with DigitalOcean, Amazon AWS, GCP, Vultr, Azure, and other cloud service providers; - Ubiquity, Mikrotik, Cisco, Dell, HP, Fortigate, SonicWall network equipment; - Intrusion detection/prevention services (IPS, IDS, SNORT, Suricata) firewall (routing, VLAN, ACL, Proxy, NAT, DMZ), CARP, HA; - HP, Supermicro, DELL, Fujitsu Siemens, IBM, Lenovo, EMC, NetApp equipment; - Website administration (WordPress, Joomla, PHP, HTML, css etc.); - Virtualization (Proxmox, Virtualbox, VMware, HyperV); - etc
  • Mikrotik
  • System Administrator
  • Windows Server

DevOps · System administration
Ukraine Kharkiv, Ukraine
I can manage with anything. If I don't know how to do something, I'll learn and complete it.
318

- 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
  • Amazon AWS
  • ansible
  • DevOps engineer
  • docker
  • docker-compose
  • GCP
  • Gitlab-CI
  • jenkins
  • k8s
  • kubernetes
  • Networking
  • SaltStack
  • System Administrator
  • terraform