Gabriela Ioana Usurelu

• Support and engineering for applications running on Red Hat OpenShift and distributed Linux-based clusters.
• Manage and monitor production systems using Geneos (rules, snoozing, active times, promoting configs) and Splunk for log analysis.
• Develop and improve Unix shell scripts for automation of daily checks and incident recovery.
• Troubleshoot and validate data flows using Oracle SQL, supporting both incidents and change deployments.
• Operate CI/CD tooling: restart pods/stateful sets via Jenkins and Ansible playbooks, scaling infrastructure where required.
• Participate in controlled deployments, following ITIL change management best practices.
• Control-M monitoring for batch flows and dependency tracking.
  Key achievement: Strengthened automated recovery and monitoring workflows, reducing manual intervention and incident resolution time.

2nd Level Billing Operations Engineer | 06/2024 – 06/2025

• Automated the end-to-end invoicing process (shell + SQL scripting), eliminating repetitive manual steps.
• Designed and maintained automation scripts for daily health checks, billing reports, and operational alerts.
• Proactively improved system monitoring by creating new alarms in Nagios, Cacti.
• Analyzed logs and performed APIs (SOAP UI) tests/real runs to resolve cross-system incidents spanning CRM, EAI, and BRM platforms.
• Supported deployments in test and production environments, detecting defects before release.
• Applied knowledge of telecom billing flows: Diameter, CDRFetcher, AAA, real-time/batch rating, HotBilling, Renewal, Refills, Invoicing, Provisioning.
• Coordinated incident resolution across multiple teams, ensuring SLA compliance.
  Key achievement: Reduced incident volume by introducing preventive scripts and improving monitoring thresholds.

1st Level Operations Engineer | 04/2023 – 06/2024

• Supported PostgreSQL systems and Linux production services for a European public transportation provider.
• Automated repetitive tasks via shell scripting; investigated incidents using ServiceNow and BMC ITSM.
• Onboarded and mentored junior team members; created documentation and diagrams.
  Key Achievement: Exceeded SLA targets while standardizing operational procedures for new hires.

• Taught Java programming, MATLAB, LaTeX, numerical simulation, applied mathematics and control systems.
• Supervised bachelor and doctoral research on applied IT topics.
• Published 8 ISI-indexed papers and peer-reviewed international journals articles.
  Transferable Strengths: Clear communication, structured problem-solving, ability to translate complex concepts into practical solutions.

• Developed internal automation prototypes using IBM BPM, JavaScript, DB2 SQL, and Java.
• Simulated customer management application for banking client.
• Supported live BRD workflows, applying integration and process modeling skills.