Linux System Administrator

Valr; Johannesburg; On-site; ZAR 600 000 - 850 000; Full time

Job summary

A leading cryptocurrency exchange in Johannesburg seeks a skilled Linux System Administrator. You will maintain and secure Linux servers, support blockchain systems, and automate tasks to enhance efficiency. The ideal candidate has 5+ years of experience in Linux system administration, strong scripting skills in Bash and Python, and a deep understanding of system security. Join us to contribute to innovative blockchain technologies in a dynamic team environment.

Benefits

Innovative Work Environment

Career Development

Competitive Compensation

Diversity and Inclusion

Wellness

Impact and Contribution

Dynamic Team Culture

Global Exposure

Recognition and Rewards

Tools for Success

Qualifications

• Minimum of 5 years of experience in Linux system administration.
• Expertise in scripting and automation using Bash, Python, or Ansible.
• Experience with containerisation tools such as Docker.
• Deep knowledge of system security, performance tuning, and networking fundamentals.
• Proficient with system monitoring and logging tools.
• Strong problem-solving and troubleshooting skills in mission-critical production environments.
• Ability to work independently while engaging cross-functional teams effectively.

Responsibilities

• Configure, maintain, and troubleshoot Linux servers to ensure optimal performance and security.
• Administer and maintain Linux-based infrastructure supporting blockchain systems.
• Automate repetitive system administration tasks to enhance efficiency.
• Monitor infrastructure health and resolve system issues for high availability.
• Enforce system security through best practices.
• Configure and maintain network components to optimise connectivity.
• Collaborate with developers to align infrastructure with business needs.
• Manage user accounts and system-level permissions securely.
• Document system configurations and procedures.

Skills

Linux system administration

Bash scripting

Python scripting

Ansible automation

Docker

System security

Networking fundamentals

System monitoring tools

Troubleshooting skills

Problem-solving

Job description

Job Description

About Us: VALR is Africa's largest crypto exchange by trade volume, founded in 2018 and headquartered in Johannesburg, South Africa. Serving over 1 million users globally, including 1,100 corporate and institutional clients, we’re licensed by the Financial Sector Conduct Authority (FSCA) in South Africa, with additional approvals to offer services in Europe and initial approval from Dubai's VARA. VALR distinguishes itself with a customer-first philosophy, delivering secure, transparent, and innovative solutions for both professional and retail traders.

Our Vision

Our vision is to create a world where finance unites rather than divides. Our name, derived from the word "valour" without distinction between American and British English, symbolises our commitment to universal values of courage, ethical integrity, and the intrinsic worth of every human being. These values drive us to design a platform that breaks down financial barriers, making it as seamless to send value across borders as it is to send an email.

Our Mission

At our core, we’re a values-driven exchange, dedicated to building a financial ecosystem that serves all of humanity. We believe in simplifying the complex world of crypto and blockchain to make it accessible to everyone, bridging the gap between traditional finance and the blockchain-powered future.

We’re Dedicated To

• Serving all Humanity: Inspired by the adage "it is expensive to be poor," we’re committed to creating a financial ecosystem accessible to all, challenging the status quo and reducing the frictions of outdated systems.
• Promoting for Unity: Our platform reflects our belief in a socio-financial evolution. We envision a future where the global community is not defined by national boundaries but united by a shared vision of justice and prosperity.

Job Requirements

• Minimum of 5 years of experience in Linux system administration.
• Expertise in scripting and automation using Bash, Python, or Ansible.
• Experience with containerisation tools such as Docker.
• Deep knowledge of system security, performance tuning, and networking fundamentals.
• Proficient with system monitoring and logging tools.
• Strong problem-solving and troubleshooting skills in mission-critical production environments.
• Ability to work independently while engaging cross-functional teams effectively.

Job Responsibilities

• Configure, maintain, and troubleshoot Linux servers to ensure optimal performance and security.
• Administer and maintain Linux-based infrastructure supporting blockchain systems.
• Automate repetitive system administration tasks to enhance efficiency and reduce manual error.
• Monitor infrastructure health and resolve system issues to ensure high availability and reliability.
• Enforce system security through best practices in hardening, patch management, and access control.
• Configure and maintain network components to optimise connectivity and performance.
• Collaborate with developers to align infrastructure with business needs.
• Manage user accounts, group policies, and system-level permissions securely and efficiently.
• Document system configurations, procedures, and operational guidelines.

Job Benefits

• Innovative Work Environment
  • Engage with the latest blockchain technologies and tools in a rapidly evolving industry.
  • Work from anywhere with secure, stable internet connectivity, allowing you to create your ideal workspace.
• Career Development
  • Benefit from an annual professional development allowance alongside scheduled company training sessions to keep you at the forefront of the crypto industry.
• Competitive Compensation
  • Competitive salaries that align with industry standards.
  • When you contribute to our success, you’ll be rewarded with discretionary bonuses, recognising your impact on VALR’s growth.
• Diversity and Inclusion
  • A commitment to fostering a diverse workforce with initiatives that promote equity and belonging.
• Wellness
  • Employees are encouraged to strive for coherent and wholesome lives, fulfilling their work, personal, social, physical and spiritual goals to the best of their abilities.
  • Compliance with statutory leave required by individual countries, in addition to flexible leave options.
• Impact and Contribution
  • At VALR, we believe in a financial system that recognises the oneness of humanity. Our mission is to break down financial barriers and promote universal values of courage, ethical integrity, and the intrinsic worth of every individual.
  • Engage in initiatives that promote education and awareness about cryptocurrencies, ensuring that everyone has the tools and knowledge to participate in the evolving financial landscape.
• Dynamic Team Culture
  • Open communication and teamwork across departments, fostering innovation and creativity.
  • Enjoy social gatherings outside of work to strengthen team bonds and boost morale.
• Global Exposure
  • Work with colleagues from around the world.
  • Exposure to diverse perspectives and practices in the crypto space.
• Recognition and Rewards
  • Regular acknowledgement of employee accomplishments, fostering a culture of appreciation and motivation.
  • Join us for retreats that blend professional development with team bonding in inspiring locations.
• Tools for Success
  • Receive a Mac laptop and a discretionary allowance to purchase all the extras needed for a productive home office—yours to keep after three years (terms and conditions apply).