Petrescu Razvan-Ioan

Master’s in Advanced programming and databases

2012 - 2014

"1 December 1918" University of Alba Iulia

Bachelor in Computer Science

2009 - 2012

"1 December 1918" University of Alba Iulia

Senior technical consultant

2024 - present

Bank from Republic of Moldova

Technologies: Oracle Linux, RedHat, Bitbucket, Ansible, Detica

AWS INFRASTRUCTURE AND DEVOPS Architect

2022 - present

Fintech company from UK

Technologies: AWS, Ansible, Gitlab, Docker, Kubernetes, Grafana, Wazuh, S3, Lambda, CloudFormation, IAM, VPC, EC2, RDS, WAF, CloudWatch, SNS, SQS

Team Leader - L3 Team • Technical

2023 - 2025

Italian's Bank - Romania HQ

Technologies: Ansible, Gitlab, Docker, Kubernetes, Grafana, Prometheus, Detica, CRIF, EDR, Nessus, Samba, SSSD, RedHat, Ubuntu, Debian, Broadcom API Gateway

Security consultant

2023 - 2024

European agency

Technologies: Nessus PRO, Wazuh, EDR, WAF

Presales technical consultant

2022 - 2023

HPC Data center from Romania

Technologies: vCloud, vCenter, ESXi, NSX-T, vSAN, vSphere, VMware

Senior Infrastructure and DevOps consultant

2021 - 2022

Data archive company from Romania

Technologies: Ansible, Gitlab, Docker, Kubernetes, Grafana, Prometheus, Splunk, CI/CD, Debian, Ubuntu, Nessus PRO, VMware, vSAN, vCenter, Nagios

AWS INFRASTRUCTURE AND DEVOPS Architect

2020 - 2022

Health software company

Technologies: AWS, Ansible, Gitlab, Docker, Kubernetes, Grafana, Prometheus, S3

Senior Infrastructure Engineer

06/2021 – 01/2025

Bitdefender, Bucharest

• Architected and implemented AWS to GCP migration for business-critical workloads, enabling cost optimization, high availability, and scalability.
• Managed AWS EC2, RDS, Lambda, and GCP resources, driving cloud-native automation and infrastructure modernization.
• Developed advanced File Integrity Monitoring (FIM) solutions for compliance and threat observability.
• Designed and deployed HA Kubernetes clusters on-prem, integrating security and CI/CD best practices.
• Implemented cloud WAF and DNS subdomain takeover prevention, improving security posture across multiple environments.
• Centralized monitoring and capacity planning using Zabbix, Grafana, and custom scripts (Bash, Python, Ruby).
• Technologies: AWS, GCP, Linux, Splunk, Kubernetes, Ansible, Terraform, Zabbix, Grafana, Bash, Python, Ruby, Wazuh, Elastic, GitLab.

Senior Advisor, Network Systems Management

01/2021 – 06/2021

Secureworks, Bucharest

• Managed distributed SIEM environments (Splunk, agent-heavy forwarder architecture), delivering actionable security use cases.
• Developed and implemented custom detection for slow bruteforce and impossible travel attacks.
• Integrated Splunk with diverse security and IT service vendors, ensuring continuous compliance and operational visibility.
• Upgraded Splunk plugins and automated Python version transitions for large-scale deployments.
• Technologies: Splunk, Python, Linux, Windows, Security Automation.

ICT System Engineer & Infrastructure Pentester

03/2019 – 12/2020

Zipper Services, Bucharest

• Designed and deployed on-prem CI/CD/CS pipelines (GitLab, Ansible Tower, custom observability tools).
• Implemented Alienvault SIEM and developed custom security tools (Dell EMC ECS auditing, Kibana/Elastic integration).
• Led automated and manual penetration tests with Nessus Pro for internal web apps and core infrastructure.
• Designed self-healing monitoring and backup solutions for VMs and multi-vendor network devices.
• Technologies: GitLab, Ansible Tower, Alienvault, Splunk, Nessus Pro, Elastic, Kibana, VMware, Bash, Python.

System Engineer

03/2016 – 03/2019

Smart-X Net App, Bucharest

• Maintained and configured secure, high-availability Linux and Windows environments for enterprise clients.
• Automated deployments and backup workflows using Ansible, Git, and Veeam for VM environments.
• Proactively monitored infrastructure, troubleshooting issues to minimize downtime and impact.
• Technologies: Linux, Ansible, Kubernetes, Salt Stack, CheckMK, Git, ONE, iptables, Java, Nginx, MySQL, Wowza.

System and Network Engineer

03/2014 – 01/2015

Sibex Sibiu-Stock Exchange, Sibiu

• Configured, maintained, and secured Linux servers for core stock exchange applications.
• Implemented database replication, firewall rules, and advanced network segmentation.
• Oversaw system upgrades and security controls for critical financial environments.
• Technologies: Linux, MySQL, Firewall, Networking.

System and Network Administrator

04/2013 – 02/2014

Apulum Technologies, Alba Iulia

• Planned, deployed, and managed mini-datacenter infrastructure for cloud-based services (AWS, VMware).
• Implemented Active Directory, DNS, VPNs, firewalling, and backup solutions for SMEs and academic clients.
• Oversaw migration projects and network architecture for building-wide coverage.
• Technologies: AWS, VMware, Linux, Active Directory, DNS, VPN, Firewalls.

System and Network Administrator

12/2011 – 04/2013

University of Alba Iulia

• Designed, configured, and maintained campus-wide IT infrastructure (servers, networking, conferencing systems).
• Produced comprehensive network diagrams, improved inter-building connectivity and security.
• Supported a hybrid Linux/Windows ecosystem and delivered automation for routine operations.
• Technologies: Linux, Windows, Networking, Automation.