SYSTEMS ADMINISTRATOR

The role of the Systems Administrator is to support and manage all Ewallet Systems and environment, this includes the following areas: -

• To manage operating systems, most times Unix based OS.
• To manage patches for Operating systems
• To scan and manage security vulnerabilities for the Operating systems (Unix)
• To manage operating systems users and ensure they comply to company policies.
• To manage application services, OS users for applications.
• To manage database installation, configurations, tuning
• To manage database replications (master-master)
• To manage database partitioning
• To manage load balancers, application load balancers, Haproxy
• To manage monitoring tools – Grafana is preferable
• To manage web application servers, and configure ssl certificates
• Administration and management of all LINUX and UNIX servers which are owned or managed by ewallet (This requires a solid background in working with commandline UNIX/LINUX)
• Administration of Web servers (NGIX and APACHE). This includes installation, configuration
• Management of SSL certificates. This includes managing their expiration dates and installing and configuring in web servers or application servers
• To harden Unix servers
• To update systems process manuals.
• To perform troubleshooting for all Ewallet systems.
• To record and document all faults/errors reported or found in the systems
• To perform tests according to planned schedules, or after any patch, development or deployment.
• To monitor security system performance logs to identify problems and notify security specialists when problems occur.
• To document technical factors such as server load, bandwidth and database performance.
• To provide guidance, leadership and direction to all junior or neighbors team under EWALLET, and ensure they are familiar with all our systems/projects also, the tools for easily supporting them.
• Consulting with staff, managers, and executives about the best security practices and providing technical advice.
• Configuring and supporting security tools, such as firewalls and anti-virus software.
• Utilize PowerShell scripts to automate system administrative tasks.
• Resolve all security clearance issues between E-WALLET AFRICA LIMITED and its associated customers or stake holders
• Review security logs and violation reports from ewallet internal and external systems.
• Analyze, locate and diagnose hosts affect by malicious code and phishing attempts.
• Work with management to ensure that the firm's security encryption policies are enforced.

QUALIFICATIONS AND TRAINING
Bachelor's degree in computer science, Computer engineering cyber security, or a related field. A solid knowledge in working with command line Unix/Linux is a must, Advanced training certifications may be advantageous.

Good experience in operating systems support, database support and load balancing.

Experience in Unix, Linux, Solaris and Windows, Relational database (MARIADB/MYSQL is a must), Advanced excel, web-based technologies.

• A strong knowledge experience in Relational database management systems, e.g. MariaDB, MySQL
• Advanced excel usage for data analysis
• Advanced OS commands, especially Unix
• Web service technology (XML & JSON over https)
• Advanced SQL scripting
• Basic graphics
• Experience with configuring Nodejs and related technologies
• Knowledge and experience of modern three tier architecture.
• Experience with a Unix shell such as bash or ssh.
• Good interpersonal and team-working skills.
• Good problem analysis and solving skills.

• Good experience in support and managing Operating systems
• Relational Database Management Systems

e.g., MySQL

• Experience in most popular data analysis tools, Excel, Python, R
• Writing advanced Unix Shell script

Experience working with Linux-based operating systems