Available for consulting

Securing cloud infrastructure at scale

Cybersecurity leader with deep expertise in cloud security architecture, threat detection & response, and enterprise security operations — protecting environments spanning 120+ AWS accounts.

breachfocus ~ security-ops
$ whoami
harikrishnan d // cybersecurity architect
 
$ cat /etc/stack
CrowdStrike · Rapid7 · Zscaler
AWS (120 accounts) · Palo Alto
BeyondTrust · Abnormal Security
 
$ uptime --career
10+ years // zero critical breaches
 
$
120+
AWS accounts managed
10+
Security tools in stack
24/7
Threat monitoring
Building resilient security programs

I'm a cybersecurity professional specializing in cloud security architecture and enterprise security operations. Currently based in Budapest, Hungary, I manage a comprehensive InfoSec program spanning endpoint detection and response, vulnerability management, identity security, network security, and cloud workload protection.

My day-to-day involves operating and optimizing a mature security stack including CrowdStrike Falcon, Rapid7 InsightIDR/InsightVM/InsightConnect, Zscaler, BeyondTrust, Abnormal Security, and Palo Alto/Fortinet firewalls — all protecting an extensive AWS environment of 120+ accounts with hundreds of Linux and Windows servers.

I'm passionate about closing visibility gaps, automating security workflows, and translating complex threat landscapes into actionable strategy. Whether it's investigating suspicious emails, analyzing vulnerability exploitation trends, or building custom security tools — I focus on outcomes that measurably reduce risk.

Location
Budapest, Hungary
Focus area
Cloud Security & SecOps
Industry
Life Sciences / Pharma
Open to
Consulting & Advisory
Enterprise security stack
Deep operational expertise across the full security lifecycle — from prevention and detection through investigation and response.

Endpoint security

CrowdStrike Falcon Rapid7 IDR EDR/XDR Agent deployment

Vulnerability management

Rapid7 InsightVM Wiz Patch management CVE analysis

Cloud security (AWS)

120+ accounts IAM GuardDuty S3 / ECS Cross-account arch

Network security

Zscaler (ZIA/ZPA) Palo Alto Fortinet SSL inspection PCAP analysis

Identity & access

BeyondTrust LastPass Kerberos PAM SSO/MFA

Security automation

InsightConnect Python SOAR Custom tooling API integrations
Built to solve real problems
Custom tools and projects built from hands-on security operations experience.
PCAP Analyzer

Browser-based PCAP analyzer

AI-powered packet capture analysis tool that parses PCAP files directly in the browser, identifying suspicious traffic patterns, DGA domains, protocol anomalies, and generates visual network flow maps.

JavaScript Claude API D3.js WebAssembly
MITRE ATT&CK Mapper

MITRE ATT&CK flow visualizer

Interactive web application that creates visual diagrams and flow maps of the MITRE ATT&CK framework, enabling security teams to map adversary TTPs and identify detection coverage gaps.

React D3.js MITRE API SVG
Agent Coverage

Agent coverage gap analyzer

Python-based tool that cross-references Rapid7 and CrowdStrike agent deployments across the entire server estate, identifying coverage gaps and generating remediation reports by OS and environment.

Python Rapid7 API CrowdStrike API Pandas
Vuln Trends

Time-to-exploit trend analyzer

Data analysis pipeline that tracks CVE exploitation timelines, identifying trends in time-to-exploit metrics and generating insights for proactive patch prioritization and risk communication.

Python NVD API CISA KEV Matplotlib
From the trenches
Practical perspectives on cybersecurity operations, cloud security, and threat landscape analysis.
Let's work together

Open to consulting, advisory, and collaboration

Whether you need help with cloud security architecture, security operations optimization, tool evaluation, or incident response — I'd love to hear from you.