Senior DevOps

Job Description

Key Responsibilities

· Manage, operate, and optimize CT Group’s hybrid infrastructure, including On-Premise systems, FPT Cloud, and Azure Cloud.

· Administer and maintain Kubernetes (K8s) clusters, including Helm, Ingress, and Service Mesh (Istio, Linkerd).

· Design, implement, and maintain CI/CD pipelines, Infrastructure-as-Code (IaC), and automation solutions using GitLab CI, Jenkins, ArgoCD, Terraform, and Ansible.

· Operate and optimize ERP systems (Odoo, SAP, Dynamics…) and web applications (PHP, Python, Node.js, .NET), ensuring performance, scalability, and security.

· Design and maintain system architecture for high availability, scalability, disaster recovery, and hybrid/multi-cloud operations.

· Implement system observability: monitoring, logging, alerting, and tracing (Prometheus, Grafana, ELK, Loki, Alertmanager).

· Ensure infrastructure and application security: IAM, RBAC, TLS, PKI, WAF, secrets management, web and API security.

· Collaborate with Data, Infra, and Security teams to integrate infrastructure with data platforms and internal applications.

· Support DevOps, SRE, and FinOps practices to optimize system reliability and cloud operating costs.

· Troubleshoot incidents, perform root cause analysis, and execute performance tuning for mission-critical systems.

Job Requirement

Required Qualifications and Skills

Education & Experience

·       Bachelor’s degree in Computer Science, Information Systems, or related field.

·       5–8 years of experience as a DevOps Engineer, System Engineer, or equivalent role.

·       Strong foundation in DevOps, System Engineering, Networking, Security, Cloud, and Kubernetes.

·       Proven track record in system design, cloud architecture, and infrastructure automation.

Technical Skills

·       Kubernetes: cluster management, Helm, Ingress, Istio/Linkerd.

·       Cloud Platforms: Azure, FPT Cloud, multi-cloud, hybrid cloud.

·       On-Premise Systems: VMware, Proxmox, Bare Metal servers.

·       CI/CD & IaC: GitLab CI, Jenkins, ArgoCD, Terraform, Ansible.

·       Monitoring & Observability: Prometheus, Grafana, ELK, Loki, Alertmanager.

·       Scripting & Automation: Bash, Python, Go.

·       Networking: TCP/IP, VPN, Load Balancers, Firewalls, NAT, DNS.

·       Security: IAM, RBAC, TLS, PKI, WAF, audit logging, secrets management, API/web app security.

·       System & Cloud Architecture: High availability, disaster recovery, cost optimization, multi-region.

Preferred Qualifications

·       Experience operating large-scale data systems (Big Data, Kafka, Airflow, Data Warehouses).

·       Hands-on experience with AI/ML platforms and MLOps pipelines.

·       Relevant certifications:

o   Kubernetes: CKA, CKAD

o   Cloud: Azure Administrator, Azure DevOps Engineer

o   Infrastructure: Terraform Associate

o   Security: Network Security, Cloud Security

Soft Skills

·       Strong analytical and troubleshooting skills, with the ability to diagnose and resolve complex infrastructure issues.

·       Proactive, system-oriented thinking with a focus on scalability, cost efficiency, and reliability.

·       Excellent communication and collaboration skills to work across teams (Data, Infra, Security, Applications).

·       Ability to manage multiple priorities and meet deadlines in a fast-paced, multi-project environment.

·       Strong sense of responsibility for system quality and performance.

·       Leadership mindset with the ability to mentor and guide junior engineers.

Benefits

·       Competitive salary based on skills and experience.

·       Performance-based bonuses and rewards for outstanding contributions.

·       Opportunities to work on large-scale, diverse projects developed by the company.

·       Professional working environment with a transparent and respectful culture.

·       Access to training programs, certifications, and career development opportunities.

·       Comprehensive health insurance and other employee benefits as per company policy