[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Singapore Airlines jobs](https://jobs.opennash.com/companies/singapore-airlines/) · [Search jobs](/search/) Singapore Airlines · Singapore # Information Technology - Principal Technologist (Application Security Architect) Singapore Senior individual contributor IT & Infrastructure Listed on Singapore Airlines’s official careers site. Listed as of October 19, 2026. Check that it is still open and apply there. [Apply on Singapore Airlines’s careers site →](https://careers.singaporeair.com/sia/job/Information-Technology-Principal-Technologist-%28Application-Security-Architect%29/48033744/) [OpenNash Jobs](https://jobs.opennash.com/) / [Singapore Airlines](https://jobs.opennash.com/companies/singapore-airlines/) / Information Technology - Principal Technologist (Application Security Architect) ## Job description ### Job Description We are seeking a Software Security Architect with a strong development and solution background to lead our internal security consulting team and design security solutions that enable business outcomes while maintaining robust security postures. This role reports to CISO. ### Key Responsibilities Application Security Reviews and Threat Modelling - Lead a team of security architecture consultants, providing threat-driven architecture security reviews and threat modelling - Architecture reviews include identity flows such as Oauth2, JWT, and AI deployments (MCP, RAG, Agent harness, Context engineering) - Continually improve existing AI-enabled threat modelling and pilot new AI initiatives supporting Cybersecurity capabilities Build Security In / Shift Left - Drive strategic security architecture decisions across business units and technology domains - Build security-by-design into development workflows - Enhance CI/CD security tooling and automation and drive adoption and metrics reporting - Reignite Security Champions initiative to improve shift left approach Enterprise and Identity security architecture - Design identity governance solutions for hybrid and multi-cloud environments - Develop identity integration strategies for AI systems and automated decisioning - Engage with platform and DevOps engineering teams to build secure infrastructure and technology foundations - Build positive flywheel effect among stakeholders to enable security adoption and cultural transformation ### Agentic and Gen AI Security - Design and integrate security frameworks for Gen AI deployment, monitoring, and governance within AI risk framework - Maintain security blueprints for (Gen) AI deployments, including MCP and AI guardrails - Lead agentic AI security initiative with focus on authentication and authorization of AI agents ### Requirements - Bachelor’s degree in computer science, engineering, or related fields - Strong software engineering background with more than 5 years of experience as a software engineer / developer. - 3+ years of team or lateral leadership experience in technology architecture or security consulting teams - Experienced in application security architecture/threat modelling. - Led complex, multi-stakeholder security initiatives. - Experience with AI/ML security challenges and solutions including Large Language Model (LLM), Model Context Protocols (MCP), Agentic AI - Comprehensive knowledge of application security principles (OWASP, SANS, etc.) ### Experience with modern security tooling - SAST, DAST, SCA, container scanning, secrets management - Relevant certifications (eg. SANS, AWS, Azure) We thank all candidates for your interest in Singapore Airlines, and regret that only shortlisted candidates will be notified. ## At a glance - Posted by the employer: Not stated - First seen by OpenNash: Oct 12, 2026 - Last checked: Oct 19, 2026 - Listed for: 7 days - Location: Singapore[Apply on Singapore Airlines’s careers site →](https://careers.singaporeair.com/sia/job/Information-Technology-Principal-Technologist-%28Application-Security-Architect%29/48033744/) ## More jobs at Singapore Airlines ### [Information Technology - End User Computing (EUC) Engineer](https://jobs.opennash.com/companies/singapore-airlines/jobs/2e75ca289dea7fd821d2/) Singapore ### [Information Technology - Lead Engineer, Cloud Platform](https://jobs.opennash.com/companies/singapore-airlines/jobs/3e48c4990aefa980f6de/) Singapore ### [Information Technology - Lead Systems Engineer (IT Network Communications)](https://jobs.opennash.com/companies/singapore-airlines/jobs/6068770b59c78b71452e/) Singapore ### [Information Technology - Lead Systems Engineer, IT Network Comms (Core DC)](https://jobs.opennash.com/companies/singapore-airlines/jobs/de3a4f4bd7c24f80374a/) Singapore ### [Information Technology - Senior Systems Engineer (Middleware/Tools Administrator)](https://jobs.opennash.com/companies/singapore-airlines/jobs/0b8c3b2b947bb4d70a4f/) Singapore ## Similar jobs at other companies ### [Senior Specialist Information Technology](https://jobs.opennash.com/companies/infineon-technologies/jobs/80714ae53372ba3d5614/) Infineon Technologies · Melaka ### [New Graduate - Information Technology/STEM](https://jobs.opennash.com/companies/ntt/jobs/4badd6fc4ef513f80aaf/) NTT · Milan, Italy ### [Information Technology](https://jobs.opennash.com/companies/royal-caribbean-group/jobs/4d5b08dbf8c893babe5d/) Royal Caribbean Group ### [ISS:Head - Information Security Governance & Technology Risk](https://jobs.opennash.com/companies/axis-bank/jobs/f33bfb29220f281cabd3/) Axis Bank · Mumbai ### [Information Technology Specialist](https://jobs.opennash.com/companies/royal-caribbean-group/jobs/386f5426694eb7878855/) Royal Caribbean Group OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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