Lead Security Solution Architect

Lead Security Solution Architect - Banking Experience : 10+ Years Employment Type : Full-time Location : Chennai Notice Period : Immediate to 15 Days Role Overview : We are looking for an experienced Lead Security Solution Architect with strong expertise in enterprise security architecture and banking/open-finance security. The role will focus on defining and reviewing secure architectures across mobile applications, APIs, network infrastructure and third-party/client-built solutions. The ideal candidate should have hands-on expertise in Zero Trust, network segmentation, Open Banking/API security, PKI, mobile application security, RASP, attestation and WAF architecture. Key Responsibilities : - Develop High-Level Designs (HLD) and Low-Level Designs (LLD) covering mobile security, PKI segregation, firewall/WAF clustering and traffic segregation. - Define security requirements, controls and acceptance criteria for client-delivered Splunk, OBS and carrier solutions. - Develop interface and security specifications for client-built backend APIs covering telemetry, attestation and risk scoring. - Lead the evaluation and recommendation of RASP and Mobile Threat Defence vendors. - Chair fortnightly Design Authority and Security Design Review meetings. - Assess residual security risks and prepare residual-risk statements for formal acceptance. - Ensure dependencies across multiple change requests (CRs) are identified and addressed coherently from a security architecture perspective. - Support threat modelling activities and define security testing scope in collaboration with the Test Lead. - Review third-party and client-built solutions for compliance with enterprise security architecture and security standards. - Provide architectural guidance to engineering and delivery teams throughout the solution lifecycle. Essential Skills : - Strong expertise in Enterprise Security Architecture. - Hands-on knowledge of Zero Trust architecture and network segmentation. - Strong understanding of Open Banking / Open Finance API security. - Experience with mTLS, OAuth 2.0 and FAPI standards. - Strong knowledge of PKI architecture and security controls. - Experience in Mobile Application Security, including RASP and mobile attestation. - Strong understanding of WAF architecture, firewall clustering and traffic segregation. - Experience conducting security design reviews for third-party and client-built solutions. - Strong understanding of security risk assessment and residual-risk management. - Experience with threat modelling and security testing methodologies. Preferred Skills : - Experience working in Banking, Financial Services or FinTech environments. - Knowledge of regulatory and security requirements relevant to Open Banking/Open Finance. - Experience with Splunk and enterprise security monitoring solutions. - Strong stakeholder management and communication skills. - Experience leading architecture/design review forums and working with multiple technology and delivery teams. Key Competencies : - Security architecture and solution design - Risk assessment and mitigation - API and mobile security - Threat modelling - Security governance - Stakeholder management - Technical leadership and decision-making