System Administrator

Da Nang

IT

Full-time

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About the Company

We are an international IT organization with more than 25 years of experience delivering web and mobile solutions for Swiss businesses across both B2B and B2C markets. Our long-term partnerships typically span 7–8 years or more, reflecting a strong focus on sustainable product development rather than short-term outsourcing.

Our projects cover multiple industries, including B2B food marketplaces, aviation platforms, banking systems, travel portals, and other large-scale digital products.


Technology Environment

Experience with some of the following technologies is highly valued:

  • Storage & Distributed Systems: DRBD, Ceph, S3

  • Virtualization: LXC, KVM

  • Backup Solutions: Bacula and related tools

  • CI/CD: GitLab CI/CD

  • Containers: Docker, Podman, containerd

  • Web Technologies: Nginx, PHP, Golang, Node.js

  • Container Orchestration: Kubernetes

  • Configuration Management: SaltStack, Ansible

  • VPN Technologies: OpenVPN, OpenConnect

  • Databases: PostgreSQL, MySQL, MongoDB, ClickHouse

  • Messaging & Streaming: RabbitMQ, Kafka

  • Caching: Redis, Memcached


Key Responsibilities

  • Administer and monitor Unix/Linux systems (primarily Debian and Ubuntu)

  • Collaborate closely with developers and infrastructure engineers

  • Maintain and operate infrastructure across both on-premise and remote environments

  • Clearly communicate task scope, risks, and complexity to stakeholders and managers

  • Introduce automation and adopt new technologies to improve infrastructure reliability and maintainability

  • Ensure system stability, performance, and security

  • Participate in a shared 24/7 monitoring rotation with the infrastructure team


Required Qualifications

  • Degree in Computer Science or a related technical field

  • Strong knowledge of Linux operating systems and networking fundamentals

  • Practical system administration experience with Debian/Ubuntu environments

  • Ability to work cross-functionally with developers, system administrators, and project managers

  • Capability to explain technical concepts to non-technical stakeholders

  • Strong willingness to learn and adopt new tools and technologies

  • Team-oriented mindset with strong collaboration skills

  • Professional English communication skills (written and spoken)

  • Ownership mindset with a high level of responsibility and commitment to projects


Must have skills 

  • Networking protocols: OpenVPN, IMAP, SMTP, LDAP, DNS, TCP/IP, OSPF

  • Understanding of TLS/x509 certificates and encryption fundamentals

  • Hands-on experience operating Kubernetes in bare-metal environments

  • Experience with configuration management tools (SaltStack or Ansible)

  • Experience with monitoring and logging platforms

  • Familiarity with CI/CD ecosystems (Jenkins, ArgoCD, GitLab CI/CD)

  • Knowledge of distributed cluster technologies (Corosync, Pacemaker)

  • Experience with software-defined networking solutions


Benefits & Working Conditions

  • Hybrid working model: 3 days onsite, 2 days remote

  • Flexible working hours (start between 09:00 – 10:00)

  • Daily English-speaking work environment

  • Open communication culture with direct access to leadership and minimal bureaucracy

  • Annual salary review

  • Company-provided working equipment

  • Weekly company-sponsored English lessons

  • 75% reimbursement for professional training and education

  • 100% sick leave compensation

  • Medical insurance coverage

  • Strong work-life balance culture with limited overtime

  • 18 annual leave days

  • 14 additional remote working days per year

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