Oleksandr, Lead DevOps Engineer

DevOps
$40/hr
english B2 (Upper-Intermediate) English
seniority Senior (5-10 years)
location Ukraine UTC+02:00

Summary

- 15+ years of professional experience
- Infrastructure planning and implementation.
- Planning and setting up the environment and performing migration of an application multisite the environment into AWS EC2 cluster with a load balancer
- Managing autoscaling and AMI-separating applications with shared network storage.
- Upper-intermediate English
- Available ASAP

Main Skills

PHP Libraries and Tools

Rust Frameworks

juniper

.NET Platform

Databases & Management Systems / ORM

Cloud Platforms, Services & Computing

AWS CloudStack

Amazon Web Services

Deployment, CI/CD & Administration

Web/App Servers, Middleware

Third Party Tools / IDEs / SDK / Services

Scripting and Command Line Interfaces

Mail / Network Protocols / Data transfer

BGP Cisco switches Dovecot HAProxy IPTable OSPF Postfix RADIUS RIP SCCP

Version Control

Operating Systems

Virtualization, Containers and Orchestration

Hosting, Control Panels

Logging and Monitoring

Other Technical Skills

bhyve CARP cisco Cisco AS Cisco ASes Cisco Call Manager Citrix XEN server CLVM Config Server Firewall CSF csh dual home BGP EMC ScaleIO Fuel +Galera GFS2 HAST HRRP IAX iSCSI Juju MAAS Mellanox: switches MERA MVTS OpenBSD OpenStack OpenSwitch RedHat GlusterFS RIPE network resources SAAS softswitch Spacewalk Sun Open Storage VRRP XenServer zfs
ID: 100-025-364
Last Updated: 2023-07-04

Projects

Systems Architect, Systems Engineer, ASBC

Responsibilities:

  • Requirements analyzing.
  • Infrastructure planning and implementation.
  • Legacy code hell problem-solving.
  • Team coordination.
  • Operations;
  • Support;
  • Maintenance;
  • ITSM(BMC REMEDY) support;
  • Automatization of deployment process on GitLab CI;
  • Testing (UI/API);
  • Leading and mentoring the Ops Team.


Technologies: Java (Java EE, JDBC, Maven, Ant), SQL (Oracle, PostgreSQL, MySQL), Git, Jira, Confluence, Web server: Apache HTTP. Application server: GlassFish. MQSeries. Testing frameworks (Cucumber, JUnit). Build and deployment scripting. Documentation and project management tools. CI/CD, Pipelines

Systems Architect, Systems Engineer, B2B trading platform (HA infrastructure planning and implementation)

Responsibilities:

  • Requirements analyzing.
  • Infrastructure planning and implementation.
  • Legacy code hell problem-solving.
  • Team coordination.

Technologies: Ansible, Perl/Bash scripting, MySQL cluster, Java.

Systems Architect, Systems Engineer, Trading platform (infrastructure planning and implementation and support)

Responsibilities:

  • Requirements analyzing.
  • Infrastructure planning and implementation.
  • Commissioning works.
  • Team coordination.


Technologies: AWS, Ansible, Jenkins, Terraform.

Systems Architect, Systems Engineer, Infrastructure planning and implementation

Responsibilities:

  • Requirements analyzing.
  • Infrastructure planning and implementation.
  • Commissioning works.
  • Team coordination.


Technologies: XEN/KVM, Fuel, Openstack, Mellanox InfiniBand

DevOps Engineer, Workflow automation

Responsibilities:

  • cPanel plugin for custom Private Tomcat System to integrate it with panels to simplify required actions for end users.

Technologies: PHP, JavaScript, cPanel, Apache, ModJK, Tomcat, Ansible for automation.
Role: DevOps Engineer.

DevOps Engineer, Setup HA cluster at Amazon AWS

Responsibilities:

  • Plan, set up the environment and perform migration of an existing complicated application multisite
    the environment into AWS EC2 cluster with load balancer, autoscaling and AMI-separated application with shared network storage.

Technologies: AWS EC2, AWS EFS, AWS CloudWatch, AWS Autoscaling, Bitbucket, Nginx, php-fpm, Ansible, AWS user-data scripts.

Network Architect, Shared Hosting Provider (Enterprise network infrastructure planning and implementation)

Responsibilities:

  • Requirements analyzing, infrastructure planning and implementation.

Technologies: Cisco switches, FreeBSD, dual home BGP, ARIN network resources

System Administrator / Expert Administrator / DevOps Engineer, Hosting company (Infrastructure and end-user support)

Responsibilities:

  • Monitoring and troubleshooting for existing servers.
  • Configuration of new servers.
  • Data migration.
  • Security audit.
  • Detection and prevention of malicious activity.

Technologies: XenServer, iSCSI, Linux (CentOS 5-7), Windows Server(2k8-2k12), Ansible, Cpanel,
Parallels Plesk panel, Apache, IIS, Nginx, PHP-FPM, ColdFusion, MySQL, MS SQL, PostgreSQL, Tomcat, Config Server Firewall (CSF), Spacewalk

C Developer, Remote Support Company (Security extension development).

Responsibilities:

  • PHP extension development for active security audit on shared hosting servers under the company’s service.

Technologies: C, make utils, PHP Zend API.

System Administrator, Lead Consultant, National education management information system (HA and high load infrastructure implementation and support)

Responsibilities:

  • Planning and setting up scalable HA cluster for PHP applications with MySQL cluster backend.
  • Consultations for developers for application refactoring to fit high loads and implement HA.

Technologies: iptables, MySQL Cluster+mysqlnd, HAproxy, CARP.

Network Architect, System Administrator, Small Internet Service and VoIP Provider (Enterprise network infrastructure planning and implementation).

Responsibilities:

  • Network infrastructure implementation.
  • CRM system implementation.
  • Asterisk chan_sip module refactoring for RADIUS AAA.
  • HA mail service.

Technologies: Cisco switches, Cisco AS, asterisk PBX, FreeBSD, dual home BGP, RIPE network resources, RADIUS, C, SVN, postfix, dovecot.

 .NET developer, Engineering Plant (Application development for resource planning department).

Responsibilities:

  • Application development for automatic product price calculation based on Autocad blueprints.

Technologies: Microsoft Visual Studio, SVN, AutoCAD, AutoCAD .NET API.

Education

Kharkiv National University of Radioelectronics

Computer Science Degree