Infrastructure Engineer (Automation, Linux & AWS)

About the role

Spark Systems is looking for an Infrastructure Engineer to join its Singapore-based Infrastructure team. You will support more than 400 virtual machines across global data centres and the AWS environment, solving technical problems, automating repetitive work and building secure, resilient systems.

Key responsibilities

• Provision, configure and maintain AWS services (EC2, VPC, NLB, S3, CloudFront, IAM) and commission virtual instances on cloud and on-premises environments
• Manage secure application traffic with load balancers, reverse proxies, firewalls and WAF
• Administer and troubleshoot RHEL servers, with occasional Windows Server support; support patching, hardening, backups and recovery
• Automate infrastructure with Ansible, Terraform and scripting, keeping documented, reusable code in Git
• Maintain monitoring and alerting (Prometheus, Grafana, SmokePing) and centralised logging (Graylog, Cribl)
• Take part in incident management, change management and scheduled maintenance, and investigate issues with internal teams and vendors
• Support security, audit and compliance activities
• Provision and manage endpoints via Microsoft Entra and Intune, and support IT asset management

Required profile

• Approximately 3-5 years of relevant hands-on experience, or comparable skills gained through education, certifications, apprenticeships, self-directed learning or projects
• Strong RHEL or comparable Linux administration and troubleshooting skills
• Hands-on AWS infrastructure experience and familiarity with Git and infrastructure-as-code
• Technical documentation and runbook-writing skills, and a calm, methodical approach to production issues

Required skills

• AWS, RHEL, Linux, Ansible, Terraform
• TCP/IP, NAT, DNS, DHCP, HTTP/S, TLS, proxies and load balancers
• Monitoring, alerting or centralised logging platforms
• Nice to have: HAProxy, Nginx, WAF, Nutanix, VMware vSphere, Windows Server, Microsoft 365, PostgreSQL, RabbitMQ, Patroni, Podman, backup and recovery platforms

Candidates are encouraged to apply through LinkedIn, describing the infrastructure they have supported and the problems they have solved.