Hybrid Blockchain Network Admin: Node & Security Expert

Placements24; Mtubatuba Local Municipality; Hybrid; ZAR 600,000 - 900,000; Full time

Benefits offered by this job

Health insurance

Bonuses

Paid time off

Certifications in network & blockchain

Retirement fund

Modern office in Richards Bay

Training and development programs

Job summary

Placements24 is seeking a diligent Blockchain Network Administrator to manage and maintain blockchain infrastructure in a hybrid setup based in Richards Bay, KwaZulu-Natal. The role combines on-site management of critical infrastructure with remote maintenance and support.

You will handle node operations, network monitoring, and troubleshooting, ensuring security and optimal performance while coordinating with development teams for new deployments.

Qualifications

• Associate's or Bachelor's degree in Information Technology, Computer Science, or a related field.
• Minimum of 4 years of experience in network administration or system administration.
• Demonstrable experience with blockchain network administration (e.g., managing nodes, understanding consensus).
• Proficiency in operating systems such as Linux and Windows Server.
• Solid understanding of networking concepts (TCP/IP, DNS, VPNs).

Responsibilities

• Install, configure, and maintain blockchain nodes and associated software.
• Monitor network performance, availability, and security, implementing proactive measures.
• Troubleshoot and resolve network-related issues, including node synchronization problems and transaction failures.
• Implement and enforce security protocols to protect the blockchain network from unauthorized access and attacks.
• Manage user access and permissions for the blockchain network.
• Perform regular backups and disaster recovery planning for network infrastructure.
• Stay informed about network upgrades, patches, and new blockchain technologies.
• Document network configurations, procedures, and incident reports.
• Collaborate with development teams to support new blockchain application deployments.

Skills

Blockchain network administration

Linux

Windows Server

Networking (TCP/IP, DNS, VPNs)

Cybersecurity basics

Scripting (Bash, Python)

Education

Associate's or Bachelor's degree in IT/CS or related field

Tools

Bash

Python

Linux

Windows Server

Job description

Placements24 is seeking a diligent Blockchain Network Administrator to manage and maintain blockchain infrastructure in a hybrid setup based in Richards Bay, KwaZulu-Natal. The role combines on-site management of critical infrastructure with remote maintenance and support.

You will handle node operations, network monitoring, and troubleshooting, ensuring security and optimal performance while coordinating with development teams for new deployments.