Linux & Network Administrator

9D Technologies is a leading publisher in the mobile apps and games industry, dedicated to delivering innovative and engaging digital experiences to users around the world. Our mission centers on creating extraordinary content that captivates and entertains, leveraging cutting-edge technology and artificial intelligence to push creative boundaries. We are currently seeking a skilled Linux and Network Administrator to join our team. This role involves maintaining production servers, configuring new hosts, and resolving live operational issues to ensure seamless service delivery.

Key Responsibilities

- Maintain and configure Linux servers and network services using automation tools such as Ansible and containerization platforms like Docker.
- Manage and operate network security and authentication services including WireGuard, RADIUS (FreeRADIUS), LDAP, KanIDM, and Active Directory–style directory services, handling accounts, groups, authentication, and replication.
- Configure DNS settings, TLS certificates, and host-based firewalls using iptables or nftables to secure network infrastructure.
- Troubleshoot and resolve authentication, connectivity, and service failures by analyzing logs, metrics, and host states.
- Monitor alerts and review system logs and events using tools such as Prometheus, Grafana, journald, and syslog to maintain system health and performance.
- Apply patches to servers based on vulnerability assessments and verify that security issues are effectively addressed.
- Conduct proofs of concept for new configurations and document findings with concise reports to inform future implementations.

Required Qualifications

- Bachelor’s degree in Computer Science or a closely related field.
- Between 2 to 4 years of practical experience in Linux system administration and network operations.
- Hands-on experience with at least two of the following technologies: WireGuard, RADIUS, LDAP, KanIDM, Active Directory, Ansible, or Docker.

Preferred Qualifications and Benefits

Candidates with additional expertise in automation and container orchestration will find this role rewarding. We offer a competitive salary that reflects your skills and experience, along with comprehensive family health insurance coverage. Our work culture emphasizes work-life balance and provides a supportive environment to help you thrive. Employees enjoy paid time off to recharge, delicious meals to stay energized, and access to convenient on-site fitness facilities to maintain an active lifestyle.

Join 9D Technologies and contribute to shaping the future of mobile entertainment through innovative technology and creative excellence.