Senior Cybersecurity Architect

NTT Limited; Singapore; On-site; SGD 150,000 - 230,000; Full time

Job summary

NTT DATA is seeking a Senior Cybersecurity Solutions Architect to lead client engagements, respond to RFPs, and shape service offerings. The role requires deep expertise across network, cloud, and infrastructure security for large enterprise clients.

You will translate business and security needs into formal architectures, drive pre-sales activities, and collaborate with product teams to optimize solution designs and BoMs. A strong track record in governance and risk is essential.

Qualifications

• 10+ years of experience in Security Presales / Security Business Development.
• Experience creating high/low level design documents and BOMs.
• Excellent communication to technical and executive audiences.

Responsibilities

• Lead and support RFP/RFI responses including design, pricing, and SOW.
• Design end-to-end cybersecurity solutions aligned with customer requirements.
• Develop security architecture roadmaps and transformation strategies.

Skills

Security Presales

Enterprise Architecture

Cross-functional collaboration

Proposal writing

Education

CISSP / CISM certifications

Job description

Senior Cybersecurity Solutions Architect

Senior Cybersecurity Solutions Architect will be responsible for leading client engagements, RFP responses, developing service offerings and participating in pre-sales process including development of proposals and estimates. This role requires technically strong individual with diverse expertise across Network, Cloud and Infrastructure security competencies who is confident under pressure and has demonstrated these skills in large scale Enterprise Security designs for the clients.

Key Responsibilities

• Lead and support RFP/RFI responses, including solution design, proposal development, pricing, presentations, Statements of Work (SOW), and other techno-commercial documentation.
• Design, architect, and position end-to-end cybersecurity solutions aligned with customer business, operational, security, compliance, and economic requirements.
• Assess and translate client business and security requirements into formal solution architecture, technical specifications, and implementation strategies.
• Develop current-state, transitional, and future-state security architecture roadmaps, including migration and modernization strategies.
• Create secure solution architectures across network, cloud, infrastructure, application, identity, data, and AI environments using security-by-design and Zero Trust principles aligned with frameworks such as NIST CSF and ISO 27001.
• Design and validate secure architectures for AI-driven and agentic systems (LLMs, RAG, autonomous agents), including governance, identity, auditability, and protection against risks such as prompt injection, data poisoning, and model/data leakage.
• Define and implement security controls across cloud, hybrid, and AI/LLMOps environments, including IAM, encryption, segmentation, compliance, and policy enforcement.
• Conduct security architecture reviews, proof-of-concepts (POCs), design workshops, due diligence sessions, and technical assessments with customers and stakeholders.
• Identify and evaluate alternative architectures and analyze trade-offs across security, scalability, performance, operational complexity, and cost.
• Work closely with Product teams, OEMs, partners, and third-party providers to develop optimized and commercially viable solution designs and finalize Bills of Materials (BoMs).
• Ensure solutions comply with cybersecurity, regulatory, and data protection requirements including GDPR, PCI-DSS, MAS-TRM, and enterprise governance standards.
• Support cybersecurity modernization initiatives across Zero Trust, SecOps, cloud security, AI security, CTEM, identity security, and emerging technologies.
• Advise customers on security strategy, threat/risk mitigation, cloud transformation, AI security governance, secure application design, and operational best practices.
• Keep up to date with emerging cybersecurity technologies, AI security trends, licensing models, architectures, and vendor product capabilities.
• Collaborate with cross-functional architecture, engineering, operations, and business teams to ensure optimal and integrated solution outcomes.
• Defend and present proposed end-to-end security solutions to customers, partners, and internal stakeholders throughout the presales and solution lifecycle.
• Contribute to the development of new security services, offerings, and go-to-market initiatives.

Required qualifications

• 10+ years of experience as an Individual Contributor in Security Presales / Security Business Development.
• Excellent knowledge in creating High level & Low-level Design document, proposal writing skills, Bill of Material Preparation and writing Scope of Document.
• Certifications like CISSP, CISM are good to have.
• Experience collaborating with cross-functional teams, including sales, engineering, and GTM Innovations.
• Certification and working knowledge of Enterprise Architecture methodologies (e.g., TOGAF, Zachman, SOA, ITIL, COBIT, etc.).
• Effective communication skills (written and verbal) with the ability to present complex security solutions to both technical and executive audiences.
• Strong understanding of technical partnerships and GTM strategies, particularly in working with OEMs.
• Well-versed in solution different cybersecurity domains - Network Security & ZTNA, ZTA, SecOps & AI in SecOPS, Cloud Security, Identity Security, Governance Risk and Compliance, AI Security & Emerging Techs.
• Excellent interpersonal & collaboration skills.

Workplace type

NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world’s leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is part of NTT Group, which invests over $3billion each year in R&D.

Equal Opportunity Employer

NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category.