Senior Cloud Administrator Engineer

NCS is a leading AI Tech Services company. With a 15,000-strong team across the Asia Pacific, NCS scales its platforms and capabilities to provide clients with greater agility and AI expertise across a range of Industries. Embracing a strong ecosystem of global partners, NCS transforms technology services delivery combining AI with digital resilience to drive real business impact. NCS is a subsidiary of the Singtel Group. We are seeking an experienced Senior Cloud Administrator with architecture-level capabilities to join our Infrastructure team. This role is responsible for designing, implementing, and managing scalable, secure, and reliable cloud-based infrastructure solutions while ensuring the stability, security, and performance of hybrid cloud environments. What will you do? Cloud Infrastructure Design & Architecture • Design, architect, and implement scalable, secure, and reliable cloud-based infrastructure solutions across public, private, and hybrid cloud environments • Develop cloud architecture blueprints and technical roadmaps aligned with business objectives and industry best practices • Lead cloud migration initiatives and transformation projects, ensuring seamless integration with existing on-premises infrastructure • Architect and implement Infrastructure as Code (IaC) solutions using Terraform, CloudFormation, or similar tools Cloud Operations & Administration • Monitor and maintain the health, performance, and security of Windows and Linux servers across cloud and hybrid environments • Configure and maintain cloud services, including virtual machines, containers, serverless functions (Lambda), networking, storage, and security components • Administer and optimise Application Load Balancers (ALB), Network Load Balancers (NLB), Web Application Firewalls (WAF), Content Delivery Networks (CDN), and NetScaler • Manage DNS services including Windows DNS and AWS Route 53 • Oversee Linux and Windows patch management, system upgrades, and lifecycle management Automation & DevOps • Design and implement Ansible Automation workflows for infrastructure and application deployment • Provide DevOps support for infrastructure and application deployment pipelines • Develop and maintain automation scripts to streamline routine administrative tasks and improve operational efficiency • Implement and manage CI/CD pipelines for infrastructure provisioning and configuration management Virtualisation & Middleware • Configure, troubleshoot, and optimise virtualisation platforms including VMware vSphere and Hyper-V • Administer middleware production environments ensuring high availability and performance • Install, configure, and manage Windows and UNIX servers and services across data centres and cloud platforms Security & Compliance • Implement and manage security tools including encryption solutions, secure key management, and identity access management (IAM) • Ensure compliance with cybersecurity best practices, system hardening standards, and regulatory requirements • Administer ManageEngine and other enterprise management tools • Conduct regular security assessments and implement remediation strategies Collaboration & Support • Collaborate with cross-functional teams including Network, Security, Application, and DevOps teams to implement enterprise-wide solutions • Provide Level 2 and Level 3 technical support for cloud infrastructure, Unix/Linux, and Windows-related issues • Troubleshoot and resolve complex issues related to cloud infrastructure, network connectivity, and application deployments • Participate in on-call rotation for after-hours support as needed Documentation & Continuous Improvement • Develop and maintain comprehensive documentation related to cloud architecture, system configurations, processes, and procedures • Participate in capacity planning, infrastructure upgrades, and technology assessments to support organisational growth • Evaluate emerging cloud technologies and recommend improvements based on best practices and changing requirements • Mentor junior team members and share technical knowledge across the team • Bachelor's degree in Computer Science, Information Technology, Computer Engineering, or a related field • More than 12 years of hands-on experience in cloud engineering, infrastructure administration, or similar roles • At least 3 years of focused experience designing, deploying, and managing cloud-based solutions and operations (preferably on AWS cloud) • Demonstrated experience in architecting and implementing hybrid cloud environments • Strong proficiency in AWS services: EC2, S3, VPC, Lambda, RDS, CloudWatch, Systems Manager, IAM, CloudFormation • Experience with AWS Cloud Platform is advantageous • Proficiency in Linux Server operating systems (RHEL, Ubuntu, CentOS) • Strong knowledge of Windows Server operating systems (2016/2019/2022) • Understanding of Active Directory, Azure AD, Group Policy, DNS, and DHCP • Expertise in cloud networking, storage solutions, and security configurations • Experience administering Application Load Balancers (ALB), Network Load Balancers (NLB), and NetScaler • Understanding of WAF, CDN, VPN, and hybrid networking architectures • AWS Certified Solutions Architect – Associate or Professional • Preferred certifications in Microsoft Certified: MSCA, VMware Certified Professional (VCP), Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE), ITIL Foundation certification • Strong analytical and problem-solving skills with the ability to troubleshoot complex infrastructure issues • Ability to design end-to-end cloud architectures ensuring compatibility, security, and performance • Excellent organisational and documentation skills • Excellent communication and collaboration abilities across technical and business stakeholders • Customer-oriented mindset with a focus on service excellence • Adaptable, proactive, and committed to continuous imp…