J. METHMAL
Currently defending pharma, healthcare & enterprise clients via Armature Systems (MSSP)

Managed Security Services · Incident Response · Detection Engineering

Securing Critical Infrastructure, One Detection at a Time.

First-Class Honours graduate and Cybersecurity Gold Medalist, now serving as an Incident Response Analyst with Armature Systems — a US-based MSSP defending pharmaceutical, healthcare, and enterprise clients worldwide. I believe in detection over assumption, automation over repetition, and resilience over reaction.

First Class Honours · Cybersecurity Gold Medalist
SentinelOneCrowdStrike FalconCortex XDRMicrosoft DefenderMicrosoft SentinelOktaAbnormal SecurityZscalerGoogle Workspace SecurityTinesCortex XSIAMFortiSIEMAlienVault USM AnywhereNetScout ArborThe HiveIBM QRadarSentinelOneCrowdStrike FalconCortex XDRMicrosoft DefenderMicrosoft SentinelOktaAbnormal SecurityZscalerGoogle Workspace SecurityTinesCortex XSIAMFortiSIEMAlienVault USM AnywhereNetScout ArborThe HiveIBM QRadar

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Years in Security Operations

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Endpoints secured in a Mandiant-led compromise assessment

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Enterprise security platforms operated across SOC & MSSP roles

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Class Honours & Cybersecurity Gold Medalist

Core Expertise

Where I create the most impact

Two years inside live SOC environments, layered on a first-class cybersecurity education and a builder's foundation in software engineering.

Managed Security Operations

Remote incident response and security operations for Armature Systems, a US-based MSSP — investigating, triaging, and resolving alerts for clients across pharmaceutical, biopharmaceutical, healthcare, and enterprise industries.

Detection Engineering & Threat Hunting

Built and tuned detection use cases across Cortex XSIAM and FortiSIEM in prior SOC roles, mapping coverage to MITRE ATT&CK — now reviewing alert quality across SentinelOne, CrowdStrike Falcon, Cortex XDR, Microsoft Defender, and Microsoft Sentinel and recommending tuning to reduce false positives.

Security Process & Automation

Building out a structured process for alert-exclusion review and tuning, with Tines automation workflow creation in progress — paired with Jira-based operational tracking to drive continuous process improvement.

Identity, Email & Network Security

Supporting identity security in Okta, email security in Abnormal Security, secure access via Zscaler, and Google Workspace security across multi-client MSSP environments.

Cloud Security

Securing and monitoring multi-environment workloads across AWS and Azure, with hands-on administration experience supporting secure infrastructure management.

Secure Software Engineering

Full-stack development across React, Next.js, Node.js, and MySQL — applying a security-first mindset to application design, from auth flows to encrypted ML pipelines.

Selected Work

Featured projects & case studies

From enterprise compromise assessments to privacy-preserving machine learning research — work that spans defense, detection, and engineering.

All projects
Security

MSSP Security Operations & Process Optimization (Armature Systems)

Remote incident response and alert-tuning support for pharmaceutical, biopharmaceutical, healthcare, and enterprise clients of a US-based MSSP — building toward a structured alert-exclusion and automation process.

SentinelOneCrowdStrike FalconCortex XDRMicrosoft Defender
View case study
Security

Enterprise Compromise Assessment (with Mandiant)

Enterprise-scale forensic artifact collection and triage across 9,000+ banking endpoints, conducted alongside Mandiant.

Cortex XSIAMMandiant ToolingMITRE ATT&CKDigital Forensics
View case study
Security

SIEM/EDR/XDR Detection Engineering & Threat Hunting

Ongoing detection engineering practice across SentinelOne, CrowdStrike Falcon, Cortex XDR/XSIAM, Microsoft Sentinel, FortiSIEM, and QRadar — reducing noise and surfacing real threats faster.

SentinelOneCrowdStrike FalconCortex XDRCortex XSIAM
View case study
AI & Research

Secure ML Model Training & Prediction for Healthcare (FHE)

A fully homomorphic encryption (FHE) server architecture enabling ML inference on encrypted healthcare data using Concrete ML.

PythonConcrete MLFlaskStreamlit
View case study

Recognition

Academic excellence meets industry certification

Gold Medalist — Best Performance in Cybersecurity

University of Staffordshire UK / APIIT Sri Lanka, 2024

First Class Honours — BSc (Hons) Cyber Security

Oct 2021 — Oct 2024 · Honor Roll, 2022/2023

10 Industry Certifications

Microsoft SC-200, AttackIQ MITRE ATT&CK series & more

Jayodya Methmal receiving the Gold Medal for Best Performance in Cybersecurity at the University of Staffordshire / APIIT graduation ceremony

Graduation, 2024

Gold Medal for Best Performance in Cybersecurity

Open to security research collaborations & freelance engineering work

Let's strengthen your security posture — or build something new.

Whether it's detection engineering, a compromise assessment, or a full-stack build — I'm always glad to talk shop.