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(Uppdaterat 2020-04-28)DevOps Consultant
Las Palmas de Gran Canaria, Spain
Modersmål Russian, Flytande Latvian, English, Nybörjare Spanish
- Performance optimization
- 15 years of experience in System and Network administration, Security
- Processes and infrastructure design
Kompetenser (34)
VPN
DHCP
NFS
KVM
NETWORK PROTOCOLS
System Administration
MICROSOFT WINDOWS
SYSTEMS SUPPORT
VLAN
WINDOWS 95
IT Infrastructure
INFRASTRUCTURE ENGINEERING
Hyper-V
PERFORMANCE TESTING
REDIS
NETWORK DESIGN
TECHNICAL DOCUMENTATION
OpenStack
SECURITY POLICIES
PERFORMANCE REVIEW
AWS
TCP/IP
ceph
Juniper
Couchbase
LOGGING
VMware
Cisco
MongoDB
DOCUMENTATION
GCP
OSPF
Azure
Digital Marketing
Sammanfattning
• A bright, resourceful and self-motivated person, with a strong background in system administration, networking, security and
management.
• Always looking for challenges to expand my knowledge and experience.
• A logical thinker; Able to adapt to any situation or environment, prepared to work hard to achieve results and meet targets.
• Resistant to stress, able to operate under strong pressure and act quickly in unexpected situations.
PERSONAL
Email: denis@acipere.com
Mobile: +34 629 933 449
Nationality: Latvia
Location: Las Palmas de Gran Canaria, Spain.
Skype: d_zadonsky Driving: B driving license (EU)
Professionell bakgrund
DevOps Engineer / System Administrator
Kentech SLU
2017-01 - 2020-01
Part of the Sportpesa group, Kentech is a recognized provider of custom solutions across various verticals, specializing in the online entertainment industry with focus on sports in multiple countries. Kentech offer turnkey large-scale computing solutions,
systems support, web development and web-based applications, customized for the specific market needs and demands.
Employed as a full time DevOps / SysAdmin, duties include:
• Solutions Design and consultancy: working closely with the project managers / developers and QA to ensure design
issues are identified and project risks are mitigated as early as possible. Working closely with different layer staff to produce
the requirements and deployment procedures to ensure successful product delivery.
• Office Infrastructure Engineering and Management: Supporting existing office server and network infrastructure to ensure
compliance with operational standards of the company. Researching, Designing and Improving the infrastructure to meet
expectations for the future.
• Technical Document Writing: creating, updating, and submitting detailed design documentation on infrastructure and deployment procedures.
• Solution Implementation: Working with various teams in different countries to make sure product is successfully deployed,
tested and released across different environments (pre-production, uat, production). Assisting as necessary with troubleshooting and fixing of discovered issues.
Day to day activities:
• Configuration and management of VMWare vSphere cluster. Researching and conducting Proof of Concept deployments,
performance testing of different VMWare alternatives (oVIrt, Proxmox + CEPH, Nutanix).
• Configuration and management of different network equipment. Cisco ASA 5515-X (Firepower Edition), Fortigate, Cisco
Nexus, Juniper, HP switches. DNS, DHCP, VLAN, VRRP, Firewall, VPN.
• Writing pipelines for internal CI / CD environment. Building custom docker images, deployment scripts, code control -
ensuring that requirements on code coverage, unit tests, integration tests, SAST are met, pipelines executes correctly, and reports are published in SonarQube / Gitlab
• Maintaining local software infrastructure for Dev and Test environments for different countries. Application stack include
Docker, Mesos, Nginx / HAProxy, PHP, Java, NodeJS, MongoDB, MySQL Cluster (NDB), RabbitMQ, Couchbase, Redis,
Memcached.
• Participating in meetings across different layers to improve processes and product quality.
• Designing and maintaining various support services / infrastructure like Active Directory / Centralized authentication,
Backups, PXE / Local package repository (Java, Operating systems), Monitoring and alerting.
Projects undertaken whilst with Kentech:
• Migrated internal software stack from individual services running inside Virtual Machines to Docker containers. At later stages
- assisted / was in charge of migrating also the pre-production stacks in different countries as well as training local teams.
• Setup several pre-production and production environments within Sportpesa. Hardware and Software stack configuration and training of local support teams.
• Internal network logical segmentation into VLANs for added security and further separation on network layer Dev and Test
environments in various countries.
• Leading Akamai platform implementation within Sportpesa to make sure infrastructure is able cope with the increasing amount
of traffic.
systems support, web development and web-based applications, customized for the specific market needs and demands.
Employed as a full time DevOps / SysAdmin, duties include:
• Solutions Design and consultancy: working closely with the project managers / developers and QA to ensure design
issues are identified and project risks are mitigated as early as possible. Working closely with different layer staff to produce
the requirements and deployment procedures to ensure successful product delivery.
• Office Infrastructure Engineering and Management: Supporting existing office server and network infrastructure to ensure
compliance with operational standards of the company. Researching, Designing and Improving the infrastructure to meet
expectations for the future.
• Technical Document Writing: creating, updating, and submitting detailed design documentation on infrastructure and deployment procedures.
• Solution Implementation: Working with various teams in different countries to make sure product is successfully deployed,
tested and released across different environments (pre-production, uat, production). Assisting as necessary with troubleshooting and fixing of discovered issues.
Day to day activities:
• Configuration and management of VMWare vSphere cluster. Researching and conducting Proof of Concept deployments,
performance testing of different VMWare alternatives (oVIrt, Proxmox + CEPH, Nutanix).
• Configuration and management of different network equipment. Cisco ASA 5515-X (Firepower Edition), Fortigate, Cisco
Nexus, Juniper, HP switches. DNS, DHCP, VLAN, VRRP, Firewall, VPN.
• Writing pipelines for internal CI / CD environment. Building custom docker images, deployment scripts, code control -
ensuring that requirements on code coverage, unit tests, integration tests, SAST are met, pipelines executes correctly, and reports are published in SonarQube / Gitlab
• Maintaining local software infrastructure for Dev and Test environments for different countries. Application stack include
Docker, Mesos, Nginx / HAProxy, PHP, Java, NodeJS, MongoDB, MySQL Cluster (NDB), RabbitMQ, Couchbase, Redis,
Memcached.
• Participating in meetings across different layers to improve processes and product quality.
• Designing and maintaining various support services / infrastructure like Active Directory / Centralized authentication,
Backups, PXE / Local package repository (Java, Operating systems), Monitoring and alerting.
Projects undertaken whilst with Kentech:
• Migrated internal software stack from individual services running inside Virtual Machines to Docker containers. At later stages
- assisted / was in charge of migrating also the pre-production stacks in different countries as well as training local teams.
• Setup several pre-production and production environments within Sportpesa. Hardware and Software stack configuration and training of local support teams.
• Internal network logical segmentation into VLANs for added security and further separation on network layer Dev and Test
environments in various countries.
• Leading Akamai platform implementation within Sportpesa to make sure infrastructure is able cope with the increasing amount
of traffic.
Senior System administrator, IT team lead, IT Manager
77Agency
2004-01 - 2017-01
77Agency is an independent agency with a 360° performance-oriented approach to digital marketing and creative
communication. With headquarters in London, UK and offices in Latvia and Italy 77Agency employs around 150 people.
Employed in the IT team, duties include:
• Network Design and Engineering: Designing, Implementing and maintaining network infrastructure within the offices and datacenters.
• Hardware and Software Solution design and Engineering: Researching, Designing, Implementing and maintaining Office
and Datacenter hardware and software infrastructure.
• Policies and procedures: Designing and Implementing various operational and security policies and procedures, ensuring
they are being followed by all employees in the company.
• Technical Documentation: Creating, updating, and submitting detailed design documentation on infrastructure, procedures
and policies.
• Management and operations: Responsible for overall operability of the entire company IT, including several people in
different departments to make sure company IT is operating according to stakeholders' expectations. Conducting / Participating in employees performance review and hiring process. Producing monthly P&L reports for the IT department.
Projects undertaken:
• Build entire company infrastructure from the ground - joined the company in a very early stage with 20 people and 5 servers
and in the next 10 years expanded IT infrastructure to nearly 400 servers, designed and implemented various processes and hired necessary personnel to ensure stable operations of the IT department.
• Setup a local Openstack and CEPH clusters to ensure quick deployments of Dev and Test environments.
• Setup an internal VoIP communication system based on Asterisk, which was also used by the monitoring system to automatically notify / call employees participating in 24x7 support rotation.
• Setup Live environment based on both Hardware (Datacenter) and Virtual (Cloud providers) servers for both internal and client
related projects.
• Set and achieved a goal for the company to become a Microsoft Gold Certified partner.
• Designed the infrastructure side of several successful internal projects:
o 77Tracking - website visitors tracking solution.
o 77Diamonds - jewellery store (When it was operating under 77Agency group)
o 77Tool - Ads Management platform across different provides (Google, Microsoft, Facebook etc).
o AllInOneSocial - Social Network management platform
o Gotu.io - Facebook advertising platform. Platform was deployed purely in AWS across different availability zones.
Day to day activities:
• Configuring and Managing network and server infrastructure to ensure stable operations. Troubleshooting internal and client applications.
• Participating in meeting with Key developers / Team Leads to make sure applications meet standards and best practices
and are deployable fast and effortlessly on the infrastructure.
• Participating in Performance, Availability and security review / testing of current applications.
• Implementing Akamai services for various clients
• Managing teams of system administrator spread over several roles within different departments.
communication. With headquarters in London, UK and offices in Latvia and Italy 77Agency employs around 150 people.
Employed in the IT team, duties include:
• Network Design and Engineering: Designing, Implementing and maintaining network infrastructure within the offices and datacenters.
• Hardware and Software Solution design and Engineering: Researching, Designing, Implementing and maintaining Office
and Datacenter hardware and software infrastructure.
• Policies and procedures: Designing and Implementing various operational and security policies and procedures, ensuring
they are being followed by all employees in the company.
• Technical Documentation: Creating, updating, and submitting detailed design documentation on infrastructure, procedures
and policies.
• Management and operations: Responsible for overall operability of the entire company IT, including several people in
different departments to make sure company IT is operating according to stakeholders' expectations. Conducting / Participating in employees performance review and hiring process. Producing monthly P&L reports for the IT department.
Projects undertaken:
• Build entire company infrastructure from the ground - joined the company in a very early stage with 20 people and 5 servers
and in the next 10 years expanded IT infrastructure to nearly 400 servers, designed and implemented various processes and hired necessary personnel to ensure stable operations of the IT department.
• Setup a local Openstack and CEPH clusters to ensure quick deployments of Dev and Test environments.
• Setup an internal VoIP communication system based on Asterisk, which was also used by the monitoring system to automatically notify / call employees participating in 24x7 support rotation.
• Setup Live environment based on both Hardware (Datacenter) and Virtual (Cloud providers) servers for both internal and client
related projects.
• Set and achieved a goal for the company to become a Microsoft Gold Certified partner.
• Designed the infrastructure side of several successful internal projects:
o 77Tracking - website visitors tracking solution.
o 77Diamonds - jewellery store (When it was operating under 77Agency group)
o 77Tool - Ads Management platform across different provides (Google, Microsoft, Facebook etc).
o AllInOneSocial - Social Network management platform
o Gotu.io - Facebook advertising platform. Platform was deployed purely in AWS across different availability zones.
Day to day activities:
• Configuring and Managing network and server infrastructure to ensure stable operations. Troubleshooting internal and client applications.
• Participating in meeting with Key developers / Team Leads to make sure applications meet standards and best practices
and are deployable fast and effortlessly on the infrastructure.
• Participating in Performance, Availability and security review / testing of current applications.
• Implementing Akamai services for various clients
• Managing teams of system administrator spread over several roles within different departments.
Akademisk bakgrund
Bachelor of Information Technology
2020-04 - 2006-01
Certifikat
Microsoft Certified Professional
Microsoft Certified
MCP
Akamai Certified in Content Deliver, Media Streaming and Security