Sailesh Kumar Radhakrishnan

Details

Skills

Security Engineering, Security Architecture, Threat Modelling, Application Security, Cloud Security, Risk Assessment and Risk Management, Third Party Risk Management, OT/ICS Security, AI Security, Infrastructure Security, Threat and Vulnerability Management, Container Security, AWS , Azure Security hardening.

About

Dynamic and results-driven Principal Cyber Security consultant with 12+ years of experience designing, engineering, and implementing enterprise-grade security architectures across cloud, on-prem, and hybrid environments. I excel at driving security strategy, strengthening infrastructure resilience, and leading cross-functional teams to deliver scalable, compliant solutions that protect critical assets and enable business growth.
My value proposition:
I transform complex security challenges into proactive, resilient defences—proven at IPEX as Principal Security Architect, where I led ICS/OT architectures aligned with NIST, IEC 62443, and SAP Governance, and at T-Mobile, directing Zero Trust Network Architecture (ZTNA), cloud hardening, and secure AWS/Azure transformations.
Key expertise:
• Threat & Vulnerability Management (TVM), Cloud Security Posture Management (CSPM), and Cloud Native Application Architecture Patterns (CNAAP)
• Compliance enforcement (ISO 27001, NIST CSF, SOC 2, CCPA) and secure configurations
• Threat modelling (MITRE ATT&CK, OWASP), security assessments, incident response, and risk management
• DevSecOps automation (Ansible for CIS/STIG hardening, Kubernetes/SDDC security)
• Network/application security, system hardening from roles at Virgin Media and Bank of America
Let’s connect to discuss how I can architect secure foundations and fortify your organization's Cyber Defence strategy—reach out for a chat on resilient security strategies!