Maxim Kadyshev

DevOps :: System Administrator :: IT Engineer



           
Work experience
Pet Projects
Diploma
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Role

Summary

Stack

DevOps Engineer
December, 2021 - November, 2023
URBI FZ-LLC, Dubai, UAE
urbi.ae
  • Worked on a project that migrates cloud services into off-line on-premise environment
  • Provisioned and maintained infrastructure as Code with Ansible roles and playbooks
  • Develop Terraform modules for deploying infrastructure resources in a cloud
  • Designed and implemented highly available and scalable architecture on Kubernetes cluster
  • Implemented containerization using Docker and manage orchestration with Kubernetes for customers infrastructure
  • Deployed, troubleshooted services and features with Helm and collaborate to development team in order to optimize application performance and scalability
  • Developed CI/CD pipelines using GitLab, Jenkins that reduced manual efforts
  • Implemented centralized monitoring using Prometheus and Grafana
  • Created new services for the project
  • Taught and supported customer technical team
OS: Ubuntu linux
Container: Docker, Kubernetes
Data storage: Docker Registry, Cassandra, Kafka, PostgreSQL, Redis, Elasticsearch, S3
Tools: Helm, Helmfile, Ansible, Terraform, Gitlab, Jenkins, Nginx, Vault, Keycloak, Prometheus, Grafana, Splunk, Jira, Confluence, Mattermost
Script: bash, Python
System Administrator
August, 2014 - November, 2021
2GIS Advertising LLC, Dubai, UAE
2gis.ae
    Selected Achievements:

  • Achieved the most effective contact center operations due to implementing a system that increased the work capacity of call center, marketing and sales department by 200%
  • Design business feature for the web and mobile application that use by 60M unique users per month

  • Responsible for infrastructure of the branch
  • Designed proactive preventive maintenance schedules to prevent unnecessary downtime and hardware faults
  • Installed security and functionality patches to maintain optimal protections against intrusion and system reliability
  • Delivered tier I and II of technical support for both internal and external users for mobile app / web services / API / data
  • Automation routine, creating reports, charts and dashboards
  • Forecasted IT requirements and budget
  • Maintained software licenses and subscriptions
  • Worked with legal department to organize contract agreements and build relations with regulators, providers and partners
  • Active participation in technical projects for the government and enterprise customers
  • Managed on-boarding and off-boarding of employees
OS: WS2012, WS2016, WS2019, CentOS, Ubuntu
Script: bash, Python, SQL
Virtualization: Hyper-V, AWS, Azure, GCP, DigitalOcean
VoIP: Asterisk, FreePBX
Monitoring: Zabbix
Communication: Jabber, OpenFire
Service: bind, ufw, ProFTP, SAN, NAS
Tools: Jira, Notion, Slack
Computer Engineer
February, 2013 - July, 2014
Taktical Realty Group LLC, Dubai, UAE
takticalrealty.ae
    Selected Achievements:

    Self developed system for auto submit queue tickets that brought revenue more than 1 million USD to the company in 6 months

  • Design, develop, implement internal corporate portal
  • Respond for public website with 400K MAU
  • Identified problematic areas and represented strategic solutions in time, ensured 0 downtime
  • Helpdesk support
  • Setup, configuration, monitoring, troubleshooting of office equipment, hardware, software and network
OS: Vista, 7, W2K8S, CentOS
Virtualization: Hyper-V
PBX: Digital Panasonic and VoIP Panasonic
Script: bash, PHP, HTML, JavaScript, CSS
Service: ipfw, samba, ftpd, mdp
Web: Apache
DataBase Administrator
February, 2011 - November, 2012
DG Soft, Novosibirsk, Russia
dg-soft.ru
  • Enterprise Service Bus administrator
  • Monitoring, incident reaction for Service Oriented Architecture Infrastructure. Big Data
  • Data mining. Query, data analyzing and fixing corrupted data
  • Query, performance optimization
DB: Firebird, MSSQL, MySQL, PostgreSQL
Script: bash, SQL
Tool: SQL Server Management Studio, Jira, SVN
System Administrator
December, 2007 - January, 2011
2GIS LTD, Novosibirsk, Russia
2gis.ru
  • Setup, configuration, monitoring, troubleshooting of self-hosted infrastructure
  • Maintain 24 x 7 x 365 operation of internal services
  • Design data / network security, backup / disaster / recovery plan
  • Migration from bare metal to a virtual infrastructure
  • Coach / trainer for system administrators of branch network
  • Technical support level II for system administrators of branch network
  • Ensured security of data, network access and backup systems
OS: W2K3S, XP, 7, RedHat, FreeBSD
VoIP: Panasonic
Services: AD, GP, DHCP, DNS, SMB, RDP, Firewall, Antivirus
Proxy: Squid, SAMS
Scripts: cmd, bash
E-mail: Exim, Spamassassin, CoureImap
Web: IIS
Virtualization: Hyper-V, VMware, Jail, OpenVZ, VirtualBox
Monitoring: Cacti
System Administrator
November, 2005 - November, 2007
VNIKTI, Novosibirsk, Russia
vnikti-kolomna.ru
  • Helpdesk support
  • Active Directory: Users and Computers
  • WAN, LAN, WLAN configuration and security policy
  • Setup, configuration, monitoring, troubleshooting of different office equipment
OS: W2K, WS2K, XP
VoIP: Avaya
Services: AD, Group policy, DHCP, DNS, SMB, Brandmauer, Antivirus
Proxy: WinGate

Hobby :: Self Employer :: Start UP

ghym
2022
ghym.ae
    Cloud infrastructure provider with datacenter based in the UAE. Ghym provides developers, startups and SMBs with free of charge cloud infrastructure as-a-service platform
    Features: IaaS, IaC, CaaS, Orchestration
VM: KVM
Container: Docker, Kubernetes
Hosting: Apache, Nginx
Database: MySQL, PostgreSQL, MongoDB, Redis, Cassandra, LDAP
Storage: Ceph Block (FS) and Object (S3)
Tools: Kafka, Docker Registry, VPN, SSL, BackUP
Monitoring: Zabbix, Prometheus, Grafana, Kibana
Firewall: ufw
IaC: Ansible, Git, CI/CD

Graduation

IT Engineer
September, 2000 - July, 2005
Siberian State University of Telecommunications and Information Sciences, Novosibirsk, Russia
Computer, Cluster and Network
sibsutis.ru

Education

LFS-258 Kubernetes Fundamentals
K8S vendor course
2023
The Linux Foundation
linuxfoundation.org

LFS-250 Kubernetes and Cloud Native Essentials
K8S vendor course
2022
The Linux Foundation
linuxfoundation.org

Python
Series of courses by coursera
2019 - 2020
University of Michigan, Ann Arbor, USA
umich.edu

Database maintenance Microsoft SQL Server 2008 R2
Microsoft vendor course
2012
Sibinfocenter, Novosibirsk, Russia
https://sibinfo.ru

RH-134 System Administration II
RedHat vendor course
2011
Sibinfocenter, Novosibirsk, Russia
https://sibinfo.ru

Basis of Linux administration
2010
Novosibirst State Technical University, Novisibirsk, Russia
nstu.ru

Administration of Windows server-based local computer networks
2007
Siberian State University of Telecommunications and Information, Novosibirsk, Russia
sibsutis.ru

Certificate