System Administrator at Inventions Technologies

System administrator: Charging systems – monitoring and performance
Organization: Not specified in the provided job advertLocation: Dar es Salaam
Role purpose
We are looking for a System Administrator who will ensure that charging systems and their integrated components operate efficiently. The role involves maintaining infrastructure, including servers, storage, and software systems, to ensure they operate reliably, securely, and at peak performance.
Key accountabilities and decision ownership
System maintenance

Execute and automate daily system health checks.
Ensure service and system availability is maintained at 99.999%.
Quickly identify faulty systems or potential failures.
Recommend proactive and preventive fixes before problems occur.

Security and monitoring

Monitor system performance regularly.
Implement security measures to prevent breaches.
Conduct regular security testing.

Data backup and recovery

Establish and manage automated backups.
Ensure data integrity and disaster recovery capabilities.
Plan and execute backup recovery plans.
Sign off for TRP validation.

User management

Create, update, and manage user accounts.
Manage permissions and access rights.
Automate the review process for application, database, and operating system users.

Troubleshooting

Analyze customer complaints using available tools.
Provide responses within the agreed service level agreement.

Documentation

Maintain comprehensive documentation of:

System configurations
Procedures
Service records

Test creation and execution

Create detailed, comprehensive, and well-structured test plans and test cases.
Ensure proper testing for all released patches and fixes.
Ensure tests are well created for new products and MPS.

Monitoring and optimization

Utilize tools such as:

Prometheus
Grafana
ELK stack

Ensure carrier-grade performance, scalability, and 24/7 reliability.

Customer and vendor support

Ensure all suppliers provide services as per agreement.
Ensure suppliers comply with all policies and company standards.
Provide responses to customer queries within the agreed SLA.

Required skills and qualifications
Technical expertise

Proficiency with Linux operating systems.
Experience with virtualization technologies, including:

VMware
Hyper-V

Knowledge of networking protocols, especially TCP/IP.

Cloud and virtualization

Experience with:

OpenStack
VMware
KVM
Kubernetes
OpenShift
Rancher

Problem-solving and troubleshooting

Strong troubleshooting skills.
Ability to resolve customer and configuration problems under pressure.
Strong analytical skills to determine root causes.

Security awareness

Knowledge of:

Firewalls
Data protection policies
Cybersecurity best practices

Communication skills

Ability to explain technical issues to non-technical staff.
Ability to provide effective technical support.

Education and experience

Bachelor’s degree from a recognized university in one of the following fields:

Computer science
Information technology
Business information technology
Telecommunication engineering

2 to 5 years of working experience in a Linux-based environment and cloud-based platform.

Automation and scripting

Experience with scripting languages for automation, such as:

PowerShell
Bash

Ability to work with low supervision

Ability to work with minimum supervision.
Ability to meet strict deadlines.

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