Hybrid Blockchain Network Admin — Uptime & Security

Placements24; Vereeniging; Hybrid; ZAR 300,000 - 540,000; Full time

Benefits offered by this job

Hybrid work model

Health insurance

Professional development in network &‑

Exposure to blockchain technologies

Job summary

Placements24 in Vereeniging is seeking a Blockchain Network Administrator to deploy and maintain distributed ledger infrastructure, ensure uptime, and optimize performance of blockchain nodes. The role blends on-site duties with remote flexibility.

You will monitor networks, implement security measures, manage access, and collaborate with development teams to support deployments, with a hybrid model in Gauteng.

Qualifications

• Bachelor's degree or equivalent practical IT/CS experience.
• 3+ years in network administration or systems engineering.
• Experience with distributed systems or server infrastructure.
• Strong knowledge of TCP/IP, DNS, firewalls, and load balancers.
• Familiarity with Linux/Unix and shell scripting.

Responsibilities

• Deploy, configure, and maintain blockchain nodes and network infrastructure.
• Monitor network performance, identify bottlenecks, and optimize systems.
• Ensure network security via regular audits and security controls.
• Manage user access, permissions, and security protocols for resources.
• Troubleshoot connectivity, performance, and node synchronization issues.
• Implement and manage backup and disaster recovery procedures.

Skills

Networking concepts

Linux/Unix administration

Shell scripting

Network security basics

Education

Bachelor's degree in Information Technology, Computer Science, or related field

Tools

Prometheus

Grafana

Job description

Placements24 in Vereeniging is seeking a Blockchain Network Administrator to deploy and maintain distributed ledger infrastructure, ensure uptime, and optimize performance of blockchain nodes. The role blends on-site duties with remote flexibility.

You will monitor networks, implement security measures, manage access, and collaborate with development teams to support deployments, with a hybrid model in Gauteng.