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Girish Mahabir

Cybersecurity Lead | SIEM • IAM • Linux Hardening • Automation

Girish Mahabir Profile Photo
+230 5867 3993
Montagne Blanche, Flacq, Mauritius

Cybersecurity Lead with 5+ years’ experience securing Linux and enterprise infrastructure environments. Leading Security Operations across SIEM, incident response, vulnerability management, and IAM integration. Hands-on in open-source security, automation (Python/Bash), and hardening baselines to strengthen detection, response, and resilience.

Keywords: Wazuh (SIEM/XDR), Elastic Stack, Incident Response, Vulnerability Management, Linux Hardening, IAM/LDAP/SSO, Linux PAM, Ansible, Terraform, Docker, Nginx, MariaDB, Git

Work Experience

Team Lead Security

OceanDBA | 09/2024 – Present

  • Owned day-to-day Security Operations for production environments, improving visibility and response through SIEM tuning and operational playbooks.
  • Mentored team delivery: onboarding, task structuring, and quality checks to drive consistent execution.
  • Automated security workflows using Python/Bash and Infrastructure-as-Code practices for repeatable, auditable deployments.
  • Strengthened access controls through IAM improvements (LDAP/SSO integration; Linux PAM configurations).
  • Operationalized vulnerability findings into prioritized remediation actions aligned to risk.

Lecturer: Computer Networks & Security

Polytechnics Mauritius | 10/2024 – Present

  • Teach network/security fundamentals and practical defensive controls aligned to real-world operations.
  • Deliver hands-on labs and assignments on secure protocols, access control concepts, and secure operations habits.
  • Build curriculum and assessments that connect theory to industry tooling and practices.

System & Security Engineer

OceanDBA | 04/2022 – 09/2024

  • Supported security operations and compliance-driven controls, including incident handling and security monitoring.
  • Hardened Linux workloads and maintained secure network/system configurations.
  • Collaborated cross-functionally to maintain reliability and secure delivery of production infrastructure.

System Engineer

OceanDBA | 01/2022 – 04/2022

  • Optimized and automated ELK Stack operations using Ansible to standardize deployments and reduce manual effort.
  • Delivered production hotfixes (Python) to preserve availability and resolve operational incidents.
  • Led migrations and administered Linux/database environments with a reliability-first approach.

Junior System Engineer

OceanDBA | 04/2021 – 01/2022

  • Implemented ELK Stack for centralized monitoring/logging, and helped automate operational workflows.
  • Managed Linux/web server operations, backup processes, VM migrations, and certificate lifecycle.
  • Resolved operational incidents spanning compute, disk, network, and database stability.

Junior System, Database & Software Engineer

OceanDBA | 09/2019 – 01/2022

  • Deployed and secured Linux-based web/database servers (MariaDB & Galera clusters) for production use cases.
  • Automated provisioning and patching with Ansible and Terraform; integrated RabbitMQ and Git-based CI/CD workflows.
  • Built system tooling for monitoring and administration; created custom RPM packages to streamline deployments.

Reference: Contact available on request (Joffrey Michaie – CTO & Founder).

Education

Computer Science Systems Engineering

Middlesex University Mauritius | 09/2021 – 05/2024

First Class Honors Degree

Main Projects

  • Zero Trust Database Administration Architecture.
  • AI-Powered Handwritten Digit Recognition System.
  • Fire Detection and Gesture Recognition Robot (RPI).

International Foundation Programme

Middlesex University Mauritius | 10/2020 – 03/2021

Conferences & Speaking

Developers Conference 2025 - Mauritius Software Craftsmanship Community

  • Building a Zero-Trust Access Management with Teleport Agenda link

Developers Conference 2024 - Mauritius Software Craftsmanship Community

  • Securing MariaDB: Essentials of Encryption, Protection, and Access Agenda link

CyberAI Threat ConClave 2025 - Jaipur, India

  • Identity Evolution: Building Trust in a Borderless World - September 2025 Session link

Full speaker profile & verified session history: sessionize.com/GirishMahabir

Volunteer & Leadership

Certificates

Skills