Linux Systems Engineer

CCBill is an online payment services provider used by more than 30,000 websites globally that supports the needs of both new and established businesses in the ecommerce and online space. Typical projects on the CCBill side include integration with new processors, improving reporting, and enhancement of systems that can handle high volume transactions with high availability over 3 satellites in Phoenix, Ashburn and the Netherlands. You will have the opportunity to work on both existing and new products and features. 

If you are passionate about Linux and eager to work in a dynamic, collaborative environment, we are looking for a Systems Engineer to help build, maintain, and optimize our on-premises Linux infrastructure. You will play a crucial role in supporting application development and production environments, ensuring system reliability, security, and scalability.

Our team works with a broad range of middleware, networking, and security tools, with limited use of containers in specific areas.

As a Systems Engineer, you'll collaborate closely with multiple teams to provide technical solutions that drive our business forward. If you thrive on problem-solving, process automation, and continuously improving systems, we'd love to hear from you!

Location: Malta/Serbia. Only applicants based in these locations will be taken into consideration.

Working hours: 40h/week, Monday-Friday 

This position will be included in the on-call rotation.

Key Job Requirements:

• Manage Linux systems in a large, complex, and highly available on-premises infrastructure, ensuring stability, and performance.
• Perform system maintenance, patching, and troubleshooting of hardware and software issues.
• Monitor system performance and proactively address potential issues using tools like Prometheus and Grafana.
• Apply Linux security best practices, including system hardening and compliance with security policies.
• Develop and maintain automation and configuration management solutions (Puppet preferred, Ansible or similar tools also applicable).
• Collaborate with development and operations teams to optimize infrastructure for business needs.
• Act as a technical resource for other engineers, providing guidance and mentorship.
• Maintain detailed documentation for configurations, procedures, and troubleshooting steps.
• Help us on automation and modernization. Identify manual and legacy processes and work to implement automated solutions using scripting languages, configuration management and orchestration tools.
• Research, test, and implement new technologies to enhance infrastructure resilience, efficiency and reliability.

Key Skills and Qualifications:

• 4+ years of experience managing enterprise Linux environments.
• 2+ years of experience with configuration management tools like Puppet (preferred) or Ansible.
• Strong technical aptitude, problem-solving mindset, and a passion for learning.
• Strong knowledge and hands-on experience with web servers and application servers (e.g., Apache, Nginx, Tomcat, or similar).
• Experience administering MySQL, PostgreSQL, or other SQL databases in a production setting.
• Understanding of Linux system security and best practices for hardening. Some of the technologies and services in our security landscape include SELinux, TLS certificates, cryptographic ciphers, and compliance standards (such as CIS benchmarks) and familiarity with them will be beneficial.
• Experience with scripting (e.g., Bash, Python, or similar) and working with APIs.
• Familiarity with monitoring and observability tools like Prometheus.
• Strong communication skills, with the ability to document processes and collaborate effectively.

Additional Qualifications:

• Experience with virtualization, F5 Load Balancers, and networking concepts.
• A background in system architecture and high-availability infrastructure.
• Exposure to software development practices, version control, and CI/CD pipelines.
• Bachelor's degree in Computer Science, Engineering, or equivalent experience.

This is an exciting opportunity to work with a highly innovative and creative team, in a great working environment using the latest technologies, methodologies, and frameworks. A competitive salary and benefits package is on offer to the right candidate.