Oskar-Calle Israel
Windhoek, Khomas,KH
Summary
Dynamic System Administrator with a proven track record at Exponant Technology Namibia, excelling in system upgrades and security management. Expert in optimizing database performance and providing technical support, ensuring seamless operations. Adept at creating comprehensive documentation and fostering user training, enhancing both efficiency and information security.
Professional with strong expertise in system administration, ready to ensure robust IT infrastructure and seamless operations. Skilled in network management, troubleshooting, and security protocols. Focused on team collaboration, adaptability, and achieving results. Reliable and responsive to evolving technical demands.
Overview
3
3
years of professional experience
Work History
System Administrator
Exponant Technology Namibia (Pty) Ltd
11.2022 - Current
- Simplified troubleshooting processes by creating detailed documentation for system configurations, procedures, and best practices.
- Provisioned new software and hardware for use, following established security policies.
- Managed user access rights to maintain a high level of information security while ensuring appropriate levels of accessibility for authorized personnel.
- Supported the implementation of new technologies by providing technical expertise and training.
- Creating database structures, tables, indexes, and stored procedures to optimize performance.
- Security Management: Controlling access to databases, managing user permissions, and protecting sensitive data.
- Security Management: Controlling access to Sage databases, managing user permissions, and protecting sensitive data.
- Backup & Recovery: Ensuring Sage databases are backed up regularly and can be restored in case of failure or corruption.
Computer Science Intern
Exponant Technology Namibia Pty Ltd
07.2022 - 10.2022
- Participated in Sage 200 installation and implementations.
- Optimized Sage 200 database queries for enhanced data retrieval speed and efficiency.
- Provided technical support to end-users, resolving issues (MoEAC, Regional Councils and private institutions).
- Monitored the website implementation for Exponant Technology Namibia.
Education
Information System Audit
Namibia University Of Science And Technology
Windhoek, Khomas, Namibia04-2026
Information Security Honors
Namibia University Of Science And Technology
Windhoek, Khomas, Namibia05-2025
No Degree - Sage 200 Evolution LU3: Product Consultant
Sage University
South Africa04-2025
No Degree - Sage 200 Evolution - Municipal Billing Consultant
Sage University
South Africa03-2025
No Degree - Sage 200 Evolution LU2: Maintenance Technician
Sage University
South Africa11-2024
No Degree - 300P - Sage 300 People - Business Partner
Sage University
11-2024
No Degree - Sage 200 Evolution LU1: Pactitioner
Sage University
South Africa11-2023
Computer Science
Namibia University Of Science And Technology
Windhoek, Khomas, Namibia04-2023
Skills
- System upgrades
- System monitoring
- Technical support
- System updates
- Windows administration
- Data backup
Additional Information
REFERENCES
1. Prof Attlee Gamundani
Associate Professor
Cyber Security, NUST
+264 81 6466 549 | agamundani@nust.na
2. Ms Providence Shimhanda
Sage BIT Consultant
Exponant Technology Namibia
+264 81 824 3866 | it@exponantnamibia.com
Timeline
System Administrator
Exponant Technology Namibia (Pty) Ltd
11.2022 - Current
Computer Science Intern
Exponant Technology Namibia Pty Ltd
07.2022 - 10.2022
Information System Audit
Namibia University Of Science And Technology
Information Security Honors
Namibia University Of Science And Technology
No Degree - Sage 200 Evolution LU3: Product Consultant
Sage University
No Degree - Sage 200 Evolution - Municipal Billing Consultant
Sage University
No Degree - Sage 200 Evolution LU2: Maintenance Technician
Sage University
No Degree - 300P - Sage 300 People - Business Partner
Sage University
No Degree - Sage 200 Evolution LU1: Pactitioner
Sage University
Computer Science
Namibia University Of Science And Technology
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