Full-time Blockchain Network Administrator

Placements24; Vereeniging; Hybrid; ZAR 420,000 - 640,000; Full time

Benefits offered by this job

Hybrid work arrangement

Training in blockchain technologies

Exposure to diverse blockchain systems

Professional growth opportunities

Job summary

Placements24 is seeking a diligent Blockchain Network Administrator for a full-time, hybrid role in Vereeniging, Gauteng. You will deploy, monitor, and secure blockchain nodes and related infrastructure, ensuring reliability and performance across networks and protocols.

Candidates should have 2–4 years in IT infrastructure, solid Linux server experience, and a working knowledge of blockchain concepts, cryptography, and cloud platforms.

Qualifications

• Bachelor’s degree or equivalent practical experience.
• 2–4 years in network or IT infrastructure roles.
• Understanding of blockchain technology including nodes and consensus.
• Experience with server administration (Linux/Unix).
• Familiarity with TCP/IP, DNS, HTTP.
• Basic scripting (Bash, Python) for automation.
• Understanding of cybersecurity principles.
• Experience with cloud platforms (AWS, Azure, GCP) is a plus.
• Strong problem-solving and documentation skills.

Responsibilities

• Deploy, configure, and maintain blockchain nodes and infrastructure.
• Monitor network performance, uptime, and security.
• Manage private keys and cryptographic assets.
• Enforce network security policies and procedures.
• Perform system updates and upgrades for blockchain software.
• Troubleshoot connectivity and node sync issues.
• Maintain network configuration and operation docs.
• Collaborate with development teams on network requirements.
• Manage user access and respond to alerts/incidents.
• Stay informed on blockchain tech and best practices.

Skills

Network administration

Blockchain knowledge

Linux server admin

Scripting (Bash, Python)

TCP/IP & DNS

Cybersecurity basics

Cloud platforms (AWS/GCP/Azure)

Documentation & communication

Education

Bachelor's degree in CS/IT or equivalent

Tools

AWS

GCP

Azure

Job description

About the Role

Our client, a rapidly expanding enterprise in the digital assets sector, is seeking a diligent and technically adept Full-time Blockchain Network Administrator . This role is essential for ensuring the smooth, secure, and efficient operation of our blockchain networks and associated infrastructure. You will be responsible for the deployment, maintenance, and monitoring of nodes, consensus mechanisms, and network protocols. This position offers a hybrid work arrangement, providing a balance of on-site engagement and remote flexibility within the Vereeniging, Gauteng, ZA region. If you have a solid understanding of blockchain infrastructure and a passion for maintaining robust decentralized systems, this is an excellent opportunity to grow your career in the Crypto & Blockchain industry. You will play a key part in the reliability and performance of our blockchain operations.

Key Responsibilities

• Deploy, configure, and maintain blockchain nodes and associated infrastructure.


• Monitor network performance, uptime, and security, identifying and resolving issues proactively.


• Manage and secure private keys and cryptographic assets.


• Implement and enforce network security policies and procedures.


• Perform regular system updates, patches, and upgrades for blockchain software.


• Troubleshoot network connectivity and node synchronization problems.


• Ensure the integrity and immutability of the blockchain ledger.


• Develop and maintain documentation for network configurations and operational procedures.


• Collaborate with development teams on network requirements for new features and applications.


• Manage user access and permissions for blockchain network resources.


• Respond to alerts and incidents, providing timely resolution.


• Stay informed about the latest developments in blockchain technology and network administration best practices.

Requirements

• Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience.


• 2-4 years of experience in network administration, system administration, or related IT infrastructure roles.


• Proven understanding of blockchain technology, including nodes, consensus mechanisms (e.g., PoW, PoS), and distributed ledger principles.


• Experience with server administration (Linux/Unix preferred).


• Familiarity with network protocols (TCP/IP, DNS, HTTP).


• Basic knowledge of scripting languages (e.g., Bash, Python) for automation.


• Understanding of cybersecurity principles and best practices.


• Experience with cloud platforms (AWS, Azure, GCP) is a plus.


• Ability to work independently and as part of a team.


• Strong problem-solving and analytical skills.


• Good communication and documentation skills.

Benefits

• Competitive salary and benefits package.


• Hybrid work arrangement for work-life balance.


• Opportunities for training and certification in blockchain technologies.


• Exposure to diverse blockchain networks and infrastructure.


• Supportive team environment and professional growth.


• Contribution to a key operational function within the crypto space.