Vinish JustinVJ

Vinish Justin
cybersecurity architect

I build monitoring & defence platforms that help security teams see attacks and stop them.

Senior SIEM & Detection Engineer · AL Rajhi Bank · Riyadh, Saudi Arabia

Open to Cybersecurity Architect and Consultant projects.

detection rulepassword_spray.spl
Detection Coverage Dashboard47% mapped
detection contentpartialtuningfiring now

The matrix illustrates how detection coverage is tracked against MITRE ATT&CK tactics. It is not any employer's real coverage data.

0Years in security operations
0+Log sources onboarded
0%Faster incident response
0Articles published
01 — identity

whoami

Riyadh, Saudi Arabia

I'm a Splunk Core Certified Consultant working across the full SIEM lifecycle: architecture and implementation, detection content engineering, security automation, and incident response.

I started in 2013 as a service engineer, moved through every SOC tier from L1 analyst to L3, and now lead SIEM and detection engineering at AL Rajhi Bank. Along the way I've worked with Splunk, ArcSight, Microsoft Sentinel, Google SecOps, and Cortex XSIAM.

  • CurrentlySenior SIEM & Detection Engineer, AL Rajhi Bank
  • SIEM platformsSplunk (Core, ES, App Dev), Google SecOps, ArcSight, Microsoft Sentinel, Cortex XSIAM
  • Detection & responseDetection engineering, purple team, threat hunting, SOAR, digital forensics, malware analysis
  • EngineeringPython, Java, C#, SQL, Splunk app and add-on development
  • EducationB.Tech, Information Technology, Anna University

Certifications

6 held
Splunk Core Certified ConsultantSplunk
Professional Security Operations EngineerGoogle Cloud
Security Operations Analyst Associate (SC-200)Microsoft
Certified Digital Forensics Professional (eCDFP)INE Security
Certified Ethical Hacker (CEH)EC-Council
CCNACisco
02 — shipped

Builds

7 beyond the day job

2026

VDConnect — Splunk app for vector databases

Published on Splunkbase. Connects Splunk to vector databases so their contents can be searched with SPL: six databases supported, a three-layer architecture, three collection modes, eight dashboards and eight SPL macros.

Splunk, Python, vector databases
2026

Detection Management Lifecycle

Brought detection engineering, SIEM engineering, and 3+ teams onto one approval and reporting workflow, with automated reporting for faster response and clearer cross-team visibility.

Splunk, automation
2025

AI-driven asset discovery

An ML-based solution that surfaced unmanaged assets across 100,000+ devices for a 10,000+ employee organization. Presented at an international conference.

Machine learning
2024

Enterprise Splunk platform

Built and manage the Splunk platform behind a bank's security operations: 15,000+ data sources, machine learning for better detection accuracy, and custom Splunk apps.

Splunk Core, ES
2022

Started CyberXtrap

Started writing at cyberXtrap in 2022 . In 2026 I moved the whole archive onto my own domain vinishjustin.dev

Cybersecurity
2021

Purple team to detection

Ran purple team engagements and turned the findings directly into new Splunk correlation searches, then tuned use cases to cut false positives.

Splunk
2017

SIEM integration at scale

Onboarded 10,000+ log sources, built 50+ ArcSight Flex Connectors, and kept an integration tracker covering 5,000+ assets to catch integration issues early.

Splunk, ArcSight
03 — service record

Experience

8 roles since 2013

Senior SIEM & Detection Engineer

AL Rajhi Bank · Riyadh, Saudi Arabia · Nov 2023 – Present

  • Build and manage the Splunk Core and Enterprise Security platform
  • Integrated 15,000+ data sources and applied machine learning to detection
  • Cut incident response time by 35% by automating log management workflows
  • Lead the Detection Management Lifecycle initiative across 3+ teams

Senior Security Engineer, L3

SBM · Saudi Arabia · Oct 2021 – Nov 2023

  • Built correlation searches, dashboards, and reports in Splunk
  • Ran purple team engagements and turned findings into detections
  • Led investigation and incident response
  • Upskilled SOC analysts on advanced detection techniques

SIEM Engineer, SOC L3

ATOS Paladion · Saudi Arabia · Dec 2017 – Sep 2021

  • Managed Splunk and ArcSight across client environments
  • Onboarded 10,000+ log sources
  • Developed 50+ Flex Connectors, SOPs, and playbooks
  • Threat intelligence analysis and proactive hunting

Senior Security Analyst

Altisource · India · May 2017 – Dec 2017

  • SOC incident response across all severity levels
  • Managed SIEM, Symantec Endpoint Protection, and 3 other tools
2016Senior Security AdministratorWipro Technologies
2015Security Analyst, L2United Health Group
2014Information Security AnalystInfosys
2013Service EngineerHCL Technologies
04 — field notes

Writing

All 35 articles

Articles per year — 18 in 2023, the busiest

AIX Security Logging to Splunk: Single-Line Audit, sudo and cron Events in /var/log/messages

A step-by-step guide to collecting detailed, single-line AIX security logs (logins, su, sudo, executed commands, process activity, cron and binary logs) in /var/log/messages and shipping them to Splunk with the Universal Forwarder, including sample output, Splunk searches and the performance impact.

Managing Splunk with Ansible, the Easy Way

A step-by-step guide to setting up Ansible: install it, configure passwordless SSH, build an inventory and ansible.cfg, run ad-hoc commands, and upgrade Splunk Forwarders across all your servers with one playbook.

Splunk daily health dashboard: implementation guide

This guide installs a Dashboard Studio page that puts the daily Splunk health checks on one screen. The page covers platform health, indexing and ingestion, license, search and scheduler, infrastructure, clustering, errors and security, and search head cluster bundle replication.

How to Regenerate GUID in Splunk Universal Forwarder via Agent Management

Facing duplicate GUID issue in Splunk forwarders after cloning a VM? Learn how to regenerate the GUID using clone-prep-clear-config and a self-disabling one-shot app, with simple steps for Linux, AIX and Windows.

05 — open a channel

Ping me

Open to Cybersecurity Architect and Consultant projects.

Hiring, or stuck on a detection problem?