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Senior Engineer, Infrastructure)

Date:  6 Jan 2026
Location: 

SG

Company:  StarHub Ltd

Job Description

Job Overview
We are seeking a skilled Infrastructure Engineer with 4-5 years of hands-on experience to design, implement, and manage our cloud infrastructure and platforms. You will play a pivotal role in ensuring our systems are highly available, scalable, and secure. The ideal candidate is proficient in the RedHat ecosystem, AWS, Kubernetes, and has a strong background in CI/CD pipelines with a DevSecOps mindset.
Key Responsibilities
•    Cloud Infrastructure Management:
o    Design, deploy, manage, and optimize infrastructure on AWS (EC2, S3, RDS, VPC, IAM, Lambda, etc.).
o    Implement infrastructure as code (IaC) using tools like Terraform or AWS CloudFormation.
o    Manage and configure RedHat Enterprise Linux (RHEL) systems, ensuring security compliance and performance.
•    Containerization & Orchestration:
o    Build, deploy, and manage containerized applications using Docker.
o    Administer and optimize Kubernetes clusters (EKS, self-managed, or other distributions) for production workloads.
o    Implement service meshes, ingress controllers, and cluster auto-scaling.
•    CI/CD & Automation:
o    Develop, maintain, and optimize CI/CD pipelines using tools like Jenkins, GitLab CI, GitHub Actions, or ArgoCD.
o    Automate provisioning, configuration, and deployment processes to improve efficiency and reliability.
o    Integrate security scanning and compliance checks into the CI/CD pipeline (DevSecOps).
•    Application Security & Compliance (DevSecOps):
o    Implement application security best practices across the infrastructure stack (network, compute, identity).
o    Utilize secrets management tools (AWS Secrets Manager, HashiCorp Vault).
o    Collaborate with the security team to ensure infrastructure meets compliance standards (e.g., SOC2, ISO27001).
o    Perform vulnerability management and patch orchestration.
•    Monitoring, Logging, & Reliability:
o    Implement and manage monitoring, alerting, and logging solutions (Prometheus, Grafana, ELK Stack, CloudWatch, Datadog).
o    Participate in on-call rotations and lead incident response, troubleshooting, and root cause analysis.
o    Drive initiatives to improve system reliability, performance, and cost-optimization.
•    Collaboration & Mentorship:
o    Work closely with development teams to enable a true DevOps culture.
o    Document architectures, processes, and runbooks.
o    Share knowledge and mentor junior team members.

Qualifications

•    Bachelors Degree in IT/Telecom, Computer Science.

•    4-5 years of professional experience in infrastructure engineering, cloud operations, or site reliability engineering (SRE).
•    Strong hands-on expertise with Amazon Web Services (AWS) core services and best practices.
•    Proven experience with RedHat Enterprise Linux (RHEL) administration, security hardening, and troubleshooting.
•    Solid experience in building, deploying, and managing Kubernetes clusters in production.
•    Deep understanding of CI/CD principles and extensive experience with pipeline tools (Jenkins, GitLab CI, etc.).
•    Strong Infrastructure as Code (IaC) skills, preferably with Terraform.
•    Experience integrating security tools (SAST, DAST, secret scanning) into CI/CD pipelines.
•    Proficient in scripting languages (Bash, Python, or Go).
•    Experience with configuration management tools (Ansible preferred).
•    Excellent problem-solving skills and a systematic approach to incident management.
•    Strong communication and collaboration skills.

Nice-to-Have Skills
•    AWS Certification (Solutions Architect, DevOps Engineer, SysOps Administrator).
•    RedHat Certification (RHCE, RHCSA).
•    Kubernetes Certification (CKA, CKAD).
•    Experience with other cloud providers (Azure, GCP).
•    Knowledge of service mesh technologies (Istio, Linkerd).
•    Experience with GitOps methodologies and tools (FluxCD, ArgoCD).
•    Familiarity with Agile/Scrum methodologies.

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