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Senior Security Architect
Expleo Group. Produce and maintain high-level and low-level security architecture and design documentation for the client's security tooling estate .
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates extensive expertise in enterprise security architecture, risk assessment methodologies, and regulatory compliance, with a strong focus on cybersecurity governance and technical leadership. Proficient in producing security documentation and managing security tooling across various domains, including network, identity, and cloud security.
Highest-signal resume keywords
CISSP CertificationSecurity Architecture ExperienceRisk Assessment MethodologiesGovernance, Risk, And Compliance ReportingTechnical Leadership
ATS Keywords
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Hard Skills
Security ArchitectureRisk AssessmentLogging And SIEM IntegrationArchitecture DocumentationCybersecurity GovernancePKI And Secrets ManagementNIS RegulationsISO/IEC 27001NIST CSFCIS Controls
Soft Skills
Excellent Written CommunicationMentoringCollaboration
Tools & Technologies
ServiceNow IRMArcherGRC Tooling
Certifications & Qualifications
CISSPCISSP-ISSAPSABSA Chartered FoundationTOGAFCloud Security CertificationGICSPISA/IEC 62443
Industry Keywords
CNI Sector ExperienceOT/ICS Security ConceptsPurdue ModelNIS-Regulated Cyber Assurance
Tech Stack
Tools & technologiesCloudCyber SecurityServiceNow
About the role
Key responsibilities & impact- Produce and maintain high-level and low-level security architecture and design documentation for the client's security tooling estate
- Carry out architecture and risk reviews of proposed high-risk firewall, intrusion prevention, gateway, privileged access and application control changes
- Define logging and audit requirements, SIEM feed requirements and retention architecture
- Assess and recommend tooling and approaches for PKI and secrets management
- Produce NIS Regulations and NCSC CAF alignment assessments and contribute evidence to regulatory reporting
- Prepare inputs for governance, risk and compliance reporting on enterprise security status
- Develop risk treatment plans and maintain inputs to the security risk register
- Prepare technical content and risk papers for the cyber security governance board
- Maintain master security architecture diagrams and quality-assure engineering team diagrams
- Identify and assess continual improvement opportunities, including benefit-cost appraisal and sequencing
- Consider operational technology and IT/OT boundary risk in architecture and design work
- Provide technical leadership, peer review and mentoring to security engineering staff
- Support growth of Expleo's Cybersecurity Practice through knowledge sharing, technical contribution and client-facing delivery
Requirements
What you’ll need- Degree in computer science, cybersecurity, information systems or a related discipline, or equivalent professional experience
- At least one of CISSP, CISSP-ISSAP or SABSA Chartered Foundation required
- 12+ years in IT and cybersecurity, including 6+ years in security architecture for enterprise or CNI environments
- Enterprise security architecture across network, identity, endpoint, cloud and data security domains
- Experience designing logging and SIEM integration architectures, including log source definition and retention requirements
- Experience applying ISO/IEC 27005 and NIST SP 800-30 risk assessment methods
- Working knowledge of NIS Regulations, NCSC CAF, ISO/IEC 27001, NIST CSF and CIS Controls
- Experience reviewing proposed changes for architectural and security risk and producing evidence-based recommendations
- Excellent written communication for executive, governance and regulator-facing documentation
- Ability to lead and quality-assure other engineers
- Experience producing architecture, design and risk artefacts for regulated organisations
- Experience supporting governance boards, risk registers and GRC reporting
- Experience working with multi-supplier environments and managed security service providers
- Right to work in India
- Based in, or willing to relocate to, Chennai
- Willingness to complete enhanced pre-employment background screening and any additional client vetting
- Ability to work hours overlapping with the UK business day, with occasional out-of-hours advisory support
- Excellent written and spoken English
- Comfortable working within a strict security boundary without access to client operational systems or data
- TOGAF, cloud security certification, or GICSP/ISA/IEC 62443 certification advantageous
- Energy, utilities or other CNI sector experience desired
- Knowledge of OT/ICS security concepts, Purdue model and IEC 62443 desired
- Experience with GRC tooling such as ServiceNow IRM or Archer desired
- Experience with Ofgem or NIS-regulated cyber assurance activity desired
Benefits
Comp & perks- Collaborative working environment
- Opportunities to expand skills and take part in inspiring projects
- Expleo Academy accredited training courses
- Competitive local company benefits [India HR to confirm the benefits package]
- Equal opportunities employment