VNG is hiring: Senior System Engineer, GreenNode (Ho Chi Minh City)

The role

GreenNode builds and operates VNG's large-scale cloud and AI infrastructure. As a Senior System Engineer, you will design, deploy, upgrade, and run high-availability production Kubernetes clusters across on-premises and cloud environments. You will also standardize deployment templates and operations for distributed databases and messaging platforms (MySQL, PostgreSQL, MongoDB, Redis, Kafka, OpenSearch), define SLIs/SLOs and alerting thresholds, lead incident response and root-cause analyses, and automate day-to-day operations (provisioning, backup/PITR, failover, patching) using Infrastructure-as-Code and scripting.

What they ask for

• A bachelor's degree in Computer Science, Information Technology, or a related field.
• At least 3–5 years of experience in SRE, DevOps, System Engineering, or DBA roles, including 2+ years operating production Kubernetes clusters (CNI, CSI, Ingress/Gateway, autoscaling, cluster upgrades).
• Deep Linux administration skills (Ubuntu, Rocky Linux, CentOS) covering OS internals, memory, filesystems, systemd, and kernel tuning, plus solid TCP/IP, routing, DNS, VPN, and load-balancing fundamentals.
• Hands-on experience operating and tuning at least two data systems in high-availability setups (Patroni, Galera, Redis Sentinel/Cluster, MongoDB Replica Set, Kafka, or OpenSearch/Elasticsearch).
• Proficiency with observability stacks (Prometheus, Alertmanager, Grafana, Loki, ELK), IaC/GitOps tools (Terraform, Ansible, GitHub Actions, GitLab CI, Argo CD), and automation scripting in Bash and Python or Go.

Good to know

• Location: Ho Chi Minh City, in Vietnam.
• Job ID: 6941 (first seen on VNG Careers on November 6, 2026).
• The role includes participating in on-call rotations, leading post-mortems, and running regular disaster-recovery and restore drills.

How the interview usually goes

VNG's senior infrastructure and SRE interviews usually cover Linux internals, networking, Kubernetes architecture, database high availability, and real-world incident troubleshooting scenarios, alongside an assessment of automation practices and cross-team collaboration.