Senior System Architect [Critical Infrastructure]

Your new company You will be joining a technology-driven organisation delivering large-scale digital and infrastructure programmes across enterprise and operational environments. The team is responsible for designing and governing mission-critical systems, driving technology transformation initiatives, and ensuring long-term scalability, reliability, and security across complex platforms. Your new role As a Systems Architec t, you will be responsible for defining and governing end-to-end technology architectures across enterprise applications, cloud platforms, infrastructure, and integration ecosystems. You will work closely with business stakeholders, engineering teams, and vendors to ensure solutions align with strategic objectives, architectural standards, and operational requirements. Job Responsibilities Define and govern end-to-end system architecture across applications, infrastructure, cloud platforms, networks, and integration layers. Translate business and operational requirements into scalable, resilient, secure, and future-ready technology solutions. Lead architecture reviews, technical design discussions, and technology evaluations while establishing architecture standards and best practices. Provide technical leadership to project teams and stakeholders, ensuring successful delivery, integration, testing, and deployment of enterprise systems. Drive technology governance, risk management, cybersecurity compliance, performance optimisation, and long-term platform lifecycle planning. Job Requirements 12+ years of experience in Systems Architecture, Enterprise Architecture, Solution Architecture, or Technology Consulting roles. Proven experience designing large-scale distributed, cloud-native, or hybrid technology platforms across enterprise environments. Strong understanding of cloud technologies ( AWS, Azure, and/or GCP ), microservices architecture, API design, integration patterns, and modern DevOps practices. Experience with enterprise architecture frameworks, system modelling methodologies, data architecture, databases, and infrastructure technologies. Strong stakeholder management, communication, and leadership skills with the ability to influence technical direction across multiple teams and business functions. Experience with digital transformation, smart infrastructure/IoT/OT, cybersecurity architecture, high-availability platforms , and enterprise architecture certifications (TOGAF, AWS, Azure). Due to project requirements and hiring considerations, this opportunity is currently open to candidates who are Singapore Citizens or Singapore Permanent Residents. What you'll get in return You'll have the opportunity to shape the long-term technology direction of large-scale programmes, collaborate with senior stakeholders, and influence key architectural decisions across critical business initiatives. This role offers strong ownership, strategic impact, and excellent career progression opportunities. What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or email eugene.fo@hays.com.sg for a confidential discussion on your career. Referrals are welcome. If this job isn't quite right for you, but you are looking for a new position within the tech space, please contact us as well. EA Reg Number: R25127914 EA License Number: 07C3924 | Company Registration No: 200609504D