Sriram Kalyanraman

Cyber Security Lead building and running enterprise security operations — from SOC design to board-level risk reporting — across telecom, public sector, and financial environments in Ireland and the UK.

Get in touch sriramkalyan97@gmail.com
soc-console — live overview
Experience
6+ yrs
Accreditation
ISO 27001 achieved
Readiness
NIS2 driven
Clients monitored
40+ enterprise
[strategy] group-wide security roadmap aligned to NIS2 & ISO 27001 — active
[build] managed SOC scaled from ground-up — accreditation achieved
[response] detection & incident workflows tuned across multi-tenant estates
01

Profile

summary.txt

Cyber Security Lead with 6+ years leading enterprise security operations, building SOC capabilities from the ground up, and delivering security transformation across telecom, public sector, financial, and critical infrastructure environments in Ireland and the UK. Proven in scaling managed SOC services, achieving ISO 27001 accreditation, driving NIS2 readiness, and strengthening cyber resilience across complex organisations.

Expertise spans security strategy, governance, threat detection and response, SIEM engineering, and regulatory compliance — with a strong track record of advising senior leadership, building high-performing teams, enhancing detection maturity, and aligning cybersecurity initiatives with business risk.

02

Experience

event log — most recent first
Mar 2025 — Now
Group Information Security Lead
Enet
Limerick, Ireland

Leads the organisation's cybersecurity function, defining and executing enterprise security strategy aligned with regulatory and business objectives across critical telecommunications infrastructure.

expand log — 10 entries
  • Define and deliver enterprise-wide cybersecurity strategy aligned to NIS2, ISO 27001 and business risk appetite
  • Lead design, implementation and optimisation of SIEM, EDR/XDR, vulnerability management and email security tooling
  • Establish security governance framework: risk management, KPI reporting, policy development, audit readiness
  • Report to senior leadership on threat landscape, security posture and improvement roadmap
  • Run enterprise risk assessments, gap analysis and maturity reviews
  • Build and mentor internal cybersecurity capability, including recruitment
  • Oversee third-party and supply chain security assessments aligned with NIS2
  • Implement group-wide security awareness and phishing simulation programmes
  • Manage security vendors, tooling and cyber insurance alignment
  • Embed security into business and operational processes with IT, network and executive leadership
Nov 2022 — Mar 2025
Manager — Cyber Security
EY, UK&I
Dublin, Ireland

Led managed security services delivery and SOC transformation initiatives across enterprise and public sector clients — spanning three roles.

SOC Manager
expand log — 7 entries
  • Led build and scale of EY UK&I Managed SOC supporting government, financial and critical sector clients
  • Achieved ISO 27001 accreditation for the SOC via robust controls, governance and operational processes
  • Directed SIEM, SOAR, EDR, threat intelligence, IAM monitoring and incident response services
  • Developed SOC operating model, workflows, SLAs, playbooks and escalation procedures
  • Managed and mentored multi-level SOC teams, driving service quality and operational maturity
  • Collaborated with CISOs and executive stakeholders on cyber resilience and business alignment
  • Supported managed security bids and proposals, contributing to client acquisition
Cyber Defence Security Lead
expand log — 3 entries
  • Designed and implemented security solutions aligned to ISO 27001, NIST and CIS frameworks
  • Delivered threat detection, vulnerability management and incident response improvements across client environments
  • Provided strategic security advisory across financial, healthcare and public sector clients
Cyber Auditor — Department of Defence (DoD)
expand log — 3 entries
  • Conducted SOC and security capability audits aligned to CCMI and NIST frameworks
  • Reviewed incident response and monitoring processes, identifying gaps and improvements
  • Supported NIS2 readiness and regulatory alignment initiatives
Mar 2020 — Nov 2022
Security Correlation Engineer
Eir Evo
Dublin, Ireland

Led SIEM engineering, detection use case development and SOC operations across multiple enterprise customers — spanning three roles.

Irish Defence Forces — Cyber Baseline Security Strengthening
expand log — 8 entries
  • Performed cybersecurity baseline assessment aligned to NIST CSF, CIS Controls and ISO 27001
  • Ran security posture and gap analysis across endpoints, servers, identity, SIEM logging and network controls
  • Designed advanced SIEM correlation rules and detection use cases to improve threat visibility
  • Enhanced log onboarding, event normalisation and alert tuning for monitoring accuracy
  • Delivered remediation roadmap to reduce attack surface and strengthen resilience
  • Developed SOC playbooks, escalation workflows and monitoring procedures
  • Collaborated with defence stakeholders to prioritise remediation across critical infrastructure
  • Improved monitoring maturity and detection readiness across defence infrastructure
Security Correlations Engineer — Managed SOC
expand log — 5 entries
  • Developed and tuned SIEM use cases to detect emerging threats across multi-tenant environments
  • Led onboarding of new clients: log source integration and monitoring design
  • Acted as technical lead for Level 1 and Level 2 analysts
  • Produced reporting, workflows and engineering documentation
  • Conducted client security reviews and continuous detection improvement
SOC Analyst (Level 2 & Level 1)
expand log — 3 entries
  • Investigated and triaged security alerts across 40+ enterprise customers
  • Conducted threat analysis on phishing, malware, domains and IP indicators
  • Developed runbooks and detection improvement recommendations
2020
Technical Support Specialist
Infosys Ltd.
Waterford, Ireland

Provided infrastructure monitoring, incident resolution and technical support across enterprise environments.

03

Core capabilities

capability matrix
01
Cyber Security Strategy & Roadmap
02
SOC Leadership
03
NIS2, ISO 27001 & GDPR Compliance
04
Threat Detection & Incident Response
05
Security Architecture Oversight
06
SIEM & XDR — Sentinel, Splunk, QRadar
07
Risk Frameworks — NIST, CIS
08
Governance, Risk & Compliance
09
Security Awareness & Resilience
10
Stakeholder & Board-Level Engagement
11
Team Leadership & Capability Building
12
Vendor & Third-Party Risk Management
04

Freelance & advisory

open for select engagements

Alongside a full-time security leadership role, open to select freelance and advisory work — security consulting, compliance support, and cyber security content writing for teams and platforms that need clear, technically accurate output.

SVC.01
Security Advisory & Risk Assessments
SVC.02
ISO 27001 / NIS2 Readiness Support
SVC.03
SOC & Detection Engineering Consulting
SVC.04
Cyber Security Content & Technical Writing
SVC.05
Policy, Governance & Audit Documentation
SVC.06
Security Awareness Content & Training Material
Discuss a project
05

Credentials

education & certifications
Master's (Hons), Cyber Security · 2019
Bachelor's, Computer Science Engineering · 2018
Certified Ethical Hacker · 2019
Microsoft Security Engineer Associate · 2021
Splunk Fundamentals I · 2020
AWS Fundamentals (2nd Ed.) · 2020
06

Contact

open channel

Let's talk about your security posture — or a project.

→ Open the contact page sriramkalyan97@gmail.com +353 87 331 7787 linkedin.com/in/sriram-kalyanraman