About GreenNode
GreenNode (a member of VNG Group) is a leading AI Cloud infrastructure provider, delivering a comprehensive Cloud & AI ecosystem — from Infrastructure-as-a-Service (vServer, vNetwork, vStorage), Platform-as-a-Service (VKS - Kubernetes, vDB, vMonitor,...) to advanced AI Stack services (AI Platform, AI Gateway, VectorDB). Our mission is to accompany enterprises on their digital transformation journey with powerful, scalable Cloud-native solutions ready for the AI era.
Position Overview
GreenNode is seeking a Technical Support Engineer with a background in Cloud and Network, working within the Customer Success team, responsible for assessing and reviewing infrastructure for enterprise customer groups.
You are the technical lead of the customer success team: reading customer service usage metrics, identifying performance and cost optimization opportunities, and supporting cross-departmental coordination to resolve technical issues beyond the scope of Level 1 support.
Job Description
1. Review and assess customer infrastructure
· Monitor and analyze customer service usage data (compute, storage, network, GPU) to evaluate operational efficiency.
· Identify optimization opportunities: idle resources, suboptimal configurations, versions nearing end of support…
· Propose optimization plans for performance and cost: right-sizing, architecture adjustments, applying more suitable services or features.
· Prepare technical assessment sections for periodic review meetings with internal teams and customers
2. Internal coordination
· Coordinate with internal departments in incident handling and customer support processes
· Compile incident statistics and send to relevant departments.
Requirements
Candidate Requirements
1. Mandatory
· Graduate degree (Associate or Bachelor) in Information Technology, Computer Science, Computer Networks, Information Systems, or related fields.
· At least 2 years of experience in one of the following positions: Technical Support, Cloud Support, System Administrator, System Engineer, Network Engineer, DevOps, or system operations.
· Strong foundation in systems: Linux, virtualization, server operations.
· Strong foundation in computer networks: VPC, routing, firewall, load balancing, DNS, VPN; able to read system architecture diagrams.
· Hands-on experience with at least one Cloud platform: VNG Cloud/GreenNode, AWS, Azure, GCP, or OpenStack.
· Able to use monitoring/logging tools; able to read and analyze logs to identify root causes of incidents.
· English: able to read technical documentation.
2. Preferred
· Knowledge of Kubernetes, Docker.
· Certifications in Cloud or networking (AWS/Azure/GCP, CKA/CKAD, CCNA or higher).
· Basic scripting (Python, Bash); able to build reports or dashboards for system monitoring.
· Experience with AI/ML workloads: GPU clusters, inference serving, VectorDB.
· Experience writing technical documentation, runbooks, or incident reports.
· Experience working with enterprise customers — an advantage, not mandatory.
3. Skills and Qualities
· Customer centric: use customer benefits and success as the measure of your work.
· Proactive in identifying issues, not waiting for customer feedback
· Good coordination with multiple departments; know when to escalate appropriately when beyond your scope.
· Careful, honest, and straightforward in your work.
