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Work Background
FreelanceIT Consultant
Feb. 2023Vienna, Austria
Vay DevNetSecOps & SRE Engineer
Aug. 2021 - Dec. 2022Vienna, AustriaArchitect for the network infrastructure, security and monitoring for the datacenters from where the vehicles are tele-driven. In charge of ensuring complete, secure and reliable functionality of the telestations-to-vehicles
networking stack and related services. Additional work in this role:
• Deploying and maintaining the virtualization clusters in all the datacenters
• Implemented a centralized authentication system for all the Linux servers/VMs and migrated the entire user base to it
• Performance monitoring of the entire infrastructure
• Maintenance and optimization of CI/CD pipelines
• Local Linux guru
eSolutions.techDevOps & SRE Consultant
Aug. 2021 - Oct. 2021Vienna, Austria
eSolutions.techSenior DevOps and System/Network/Cloud Engineer
Jul. 2019 - Jul. 2021Bucharest, Romania• Designing, operating and improving the virtualization infrastructure (Xen, KVM)
• Implementing OS security at all levels (Linux, firewalls, policies)
• Design and implementation of remote work infrastructure (VPN, Voice-and-Video platforms, Virtual Classrooms)
• Managing the application containerization infrastructure (Rancher, Docker)
• Cloud operations (AWS, Google GCP/GSuite, DigitalOcean)
• Deployment and management of on-premises Atlassian suite of applications
• IP Network configuration and optimization (networking, DNS, e-Mail, nginx/Apache, SSL certificates, load balancing, security, encryption, distributed filesystems, SSO, audit)
• Automation (Git, advanced bash/python/ruby scripting, Ansible)
• Deploying and managing databases (MySQL, MariaDB, PostgreSQL, Redis)
• DevOps (Rancher, Docker, Nexus, BitBucket, Grafana, Nagios, SSH, Elasticsearch, Kibana)
• Deep troubleshooting and root cause analysis
• Local Linux and open-source guru
RCS & RDSSenior System Architect
Mar. 2015 - Mar. 2019Bucharest, Romania
RCS & RDSGPON IP/MPLS Technical Coordinator
Dec. 2009 - Mar. 2015Bucharest, Romania• Recruitment and coordination of GPON engineers at Bucharest HQ
• Plan, implement and deploy GPON technology on a nation-wide scale in RDS network
• Write documentation and procedures pertaining to GPON technology for all company departments
• Further develop the in-house management/provisioning/monitoring solution and seamlessly integrate it with the main netwok management systems
• Further integrate the GPON network into the main nation-wide heterogenous network (interoperability tests at all OSI layers, troubleshooting, bug fixing etc.)
• Provide GPON vendors with detailed equipment (mal)functioning data, logs and debugging information in order to improve the overall GPON solution.
• Develop and deploy a cluster of decentralized redundant servers together with custom written software to easily manage/provision/monitor the GPON network at nation-wide level (Ruby, Python, PHP, MySQL, Apache/Nginx, Bash, sed, awk, Linux, SNMP, BGP, OSPF, Anycast, DNS, Cisco, HP, Supermicro etc.)
• Administration and security auditing of Linux servers deployed as part of the nation-wide GPON infrastructure
RCS & RDSTechnical Consultant
Jan. 2009 - Mar. 2019Bucharest, Romania• Provide insights on technologies, solutions and approaches to various coleagues and departments within the company (software, hardware, programming, information security, Linux server security, Linux server configuration hardening, Android etc.)
RCS & RDSGPON IP/MPLS Network Engineer
Nov. 2008 - Dec. 2009Bucharest, Romania• Deep testing at all OSI layers and deployment of GPON equipment
• In close contact with GPON equipment manufacturers for troubleshooting, bug fixing, implementation of new features and all-round GPON solution improvement
• Develop an in-house solution for management, provisioning, automation and monitoring of GPON equipment (Ruby, Python, PHP, MySQL, Apache/Nginx, Redis, SNMP etc.)
• Develop various software tools for integration of GPON layer into a large heterogenous network (Bash, sed, awk, MySQL, SNMP, WebServices etc.)
• Administration and security auditing of Linux servers deployed as part of the GPON infrastructure
RCS & RDSIP/MPLS NOC Engineer
Dec. 2005 - Nov. 2008Bucharest, Romania• Assure 3rd Level IP support for customers
• Manage and troubleshoot a large heterogenous network (Cisco, Juniper, ZTE, Huawei etc.) of switches, routers and Linux servers at all OSI layers
• Manage and troubleshoot a wide range of services (DNS, DHCP, IP address registration and management, video streaming, BGP, VPN, proxies)
• Hands-on datacenter support for both customers' and internal servers (deployments, component upgrades, hardware and connectivity troubleshooting)
• 24/7 service monitoring and incident response in multiple shifts for both customer and internal equipment
FreelanceIT Consultant
Jan. 2002 - Jul. 2019Europe
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