Vladislav Vasilev

Experience

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  Obit

  Aug 2013 - Sept 2019

  Support / Helpdesk engineer

  Receiving customer requests (phone calls, emails, messenger/chat), monitoring equipment, working with data center clients.I've conducted initial troubleshooting regarding problems with company's services (Internet connection, VoIP, iptv, WiFi public zones, L2VPN, L3VPN, MPLS, xDSL etc.) I used RT (Request Tracker) ticket system on a regular basis.I was responsible for decisions about handling of customers' requests (checkout, escalation, normal reboot). I've also did some remote fixes if they were possible. I'm familiar with CLI of many switches and routers.I had experience with vendors (routers, switches): Cisco, Juniper, Mikrotik, Dlink, Edge-core. Also with UPS vendors APC, Riello (monitoring)Technologies: TCP/IP, DNS, DHCP, VLAN, NAT, WiFi, xDSL, VoIP, Multicast (IPTV), L2VPN, L3VPN, EoIP, SSH/Telnet, BGP/OSPF (monitoring of established sessions and correctness of announcing routes)One of my bright ideas which was implemented after I stopped working in this company. The idea was simple: when connecting a new household to the internet, company's connecting engineer must check if newly connected swtichport doesn't have so called "customer lock" from previous client (e.g. a database record based on ARP which connects client's MAC, IP and home address). Before my idea was implemented, workflow was quite bothersome (line engineer would call tech support and ask them to remove the 'lock'). My idea was that connecting engineer could himself remove previous customer's data off the port(database). It really easened tech support's workload. Show less

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  Selectel

  Feb 2020 - Jun 2021

  Support engineer / Cloud infrastructure enjineer

  On this position I was helping data center customers with all kinds of troubles they were having with company's services. (those services are happen to be: dedicated rental servers, cloud servers (VPS), serverless cloud functions, GPU servers (aka hardware for machine learning), cloud platform VPSs (Openstack, GCP and VMware based), cloud databases, cloud object storage (Openstack/Swift based), cloud backup systems, Veeam Cloud Connect, Kubernetes clusters (aka Managed Kubernetes), remote desktop service, server collocation, rack rental, CDN, anti-DDoS protection, load balancer as-a-service for cloud platform/k8s, rental firewall, L3VPN, DNS hosting, monitoring as-a-service, licensing Google, Microsoft and many other products)Regarding VMware:Mostly it was troubleshooting and fixing, regarding clients' questions about performance troubles (regarding hypervisor's CPU cores workload and vHDD/vSSD IOPS diagnostics and best practices suggestions) and dealing with errors. I was using VMware Cloud Director software to manage VDCs in 3 different regions. Also I was doing migration between data centers, virtual networking and managing backups (veeam cloud solutions) and snapshots.During my work at Selectel, I was with only Linux.I have experience of creating clusters in both 'Managed' and usual modes. In unmanaged mode I used several virtual machines as cluster nodes and applied Ansible+Kubespray to the cluster to make them work. After that I built a simple Wordpress container so k8s could run it’s copies on the cluster. Also I managed to implement Prometheus+Grafana into the cluster in order to provide nice monitoring features. Apart from Kubespray, I did some exercising with writing various Ansible playbooks, in order to roll-out updates, perform bulk optimization of all running nodes and so on.My experience with CI/CD tools such as Jenkins was very brief, but I’ve managed to connect several plugins to it and perform a simple testing and roll-out actions Show less

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  AO Greenatom

  Jul 2021 - Mar 2022

  System Administrator

  This was some kind of anykey/outsource position, but with accent on administrating this big corporate infrastructure (using Active Directory/Windows Server). I was responding to requests from end-users and from senior IT engineers (for example, updating hardware and software on hosts and big rack servers. configuring hosts so they would comply with company's cybersecurity regulations, including USB crypto-tokens).Also I had experience with fixing printers/scanners (not only cartridge replacement, but mostly network availability). I finished working at this company because Japan finally opened it's borders, so since 2022/04 I'm living in Japan Show less

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  （株）すかいらーくレストランツ

  May 2022 - Jan 2023

  キッチンマネジャー
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  Dow Chemical Japan

  Mar 2023 - Mar 2024

  Onsite Support Engineer

  Face-to-face and remote user support and in-house ServiceNow inquiries. PC and network.Responsible for network problem resolution. software updates, hardware upgrades on-site work (device replacement, cable connection, etc.), inventory inventory, PC repair, parts exchange.

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  NetAssist

  Mar 2024 - now

  Infrastrucure Engineer

  ・Customer environment with IaaS such as AWS / GCP / Azure / Sakura Cloud etc.design and construction・Windows/Linux server OS and middleware settings・IaaS/PaaS operation/maintenance work・Proposal of security products such as WAF / IPS / IDS / Antivirus,Installation/operation support[Main duties]・Various servers (Linux, Windows), cloud environment, virtual environment, middleDesign and construction of clothing・Introduction and configuration of middleware such as Apache, Nginx, MySQL, MariaDB, PHP, etc.fixed・Monitoring, operation, and maintenance of networks and servers (Linux, Windows)・Responding to inquiries regarding networks and servers・Investigation and reporting of obstacles and request details*We provide in-house training + OJT after joining the company![Design construction/maintenance environment]■OSWindows Server / AlmaLinux / Ubuntu / RHEL / AmazonLinux2 /CentOS■IaaSAWS / Azure / Sakura Cloud / IDCF Cloud etc.■MiddlewareIIS / Apache / Nginx / OpenLiteSpeed / HA ProxyPostfix / Dovecot / SendmailPacemaker / Corosync / DRBD / GlusterFSMySQL / MariaDB / PostgreSQL / SQL Server■Monitoring toolsCloud infrastructure services such as Zabbix / Amazon CloudWatch Show less