Senior Global SRE —Singapore

Salary: $15,000 – $20,000 per month

Company: Momcozy (ROOT Global)
Employment Entity: Local subsidiary (Singapore / United States)
Salary Range: [To be confirmed — will be added per local pay transparency laws]
Visa Sponsorship: This role does not provide visa sponsorship. Candidates must be legally authorized to work in the country of employment.

About the role

We are looking for a Senior Global SRE / Infrastructure Engineer to help build, operate, and improve reliable infrastructure across multiple geographic regions. This role serves as a key technical owner for infrastructure supporting our international business, with a strong focus on AWS, Kubernetes, Linux, networking, observability, automation, CI/CD, and production reliability. You will independently troubleshoot complex production issues, support regional infrastructure, participate in global architecture initiatives, and continuously improve the reliability, automation, and operational efficiency of our infrastructure.

Key responsibilities

• Operate and maintain production infrastructure across AWS and multiple geographic regions, ensuring availability, reliability, performance, and scalability

• Design, deploy, and operate AWS infrastructure including EC2, VPC, ELB, S3, RDS, CloudWatch, IAM, and related services; support multi-region AWS infrastructure and cloud migration projects

• Operate and maintain Kubernetes production clusters; manage Docker/containerized workloads and Kubernetes resources; troubleshoot pod, node, networking, storage, and resource-related issues

• Define and improve SLI, SLO, and SLA for critical services; build and maintain monitoring, alerting, and observability systems using Prometheus, Grafana, CloudWatch, ELK, or comparable tools

• Participate in production incident response and on-call rotations; lead incident troubleshooting and root cause analysis; develop preventive measures for recurring incidents

• Troubleshoot LAN/WAN, VPN, DNS, routing, firewall, and Internet connectivity issues; support connectivity between global offices, cloud environments, and business systems

• Maintain and improve CI/CD platforms and deployment pipelines using GitLab, Jenkins, Argo CD, or similar technologies; automate infrastructure provisioning, deployment, monitoring, and operational tasks

• Implement infrastructure security best practices; support IAM, security groups, network segmentation, encryption, and access control; ensure infrastructure complies with company security and global data protection requirements

• Act as the technical infrastructure owner for the local overseas office; support office network, Wi-Fi, VPN, and IT infrastructure; coordinate with local ISPs, cloud providers, and IT vendors

• Communicate technical issues and solutions clearly; maintain infrastructure documentation, SOPs, and architecture diagrams; participate in global architecture reviews

About you

• Bachelor's degree or above in Computer Science, Information Technology, Networking, or a related field, or equivalent industry experience

• 5+ years of experience in SRE, DevOps, cloud infrastructure, or systems engineering

• Strong hands-on experience with AWS cloud infrastructure

• Strong Linux administration and troubleshooting skills

• Hands-on experience with Kubernetes and Docker

• Solid understanding of TCP/IP, DNS, DHCP, VLAN, routing, VPN, load balancing, and network troubleshooting

• Experience with infrastructure as code, preferably Terraform

• Experience with CI/CD tools such as GitLab CI, Jenkins, Argo CD, or similar platforms

• Experience with monitoring and observability tools such as Prometheus, Grafana, CloudWatch, or ELK