HALIMA CIROMA
Abuja
Summary
Results-oriented IT professional with extensive expertise in enterprise application and database administration, system optimization, and the successful implementation of critical projects. Highly experienced Systems and Application Administrator with over 12 years of hands-on experience in enterprise application support, cloud infrastructure, systems administration, and comprehensive database management . Proven track record in participation in major IT projects involving significant database architecture and management, system migrations, application and database upgrades, and infrastructure optimization. Versatile in Agile and Prince2 project methodologies, and certified in cloud, database, and cybersecurity domains. Adept at managing cross-functional teams, enhancing database and application performance, and ensuring 24/7 uptime for mission-critical applications and their underlying databases.
Overview
19
19
years of professional experience
1
1
Certification
Work History
Application Database Administrator
Central Bank Of Nigeria
Abuja
04.2013 - Current
- Coordinates application administration activities for all systems.
- Participated in the design and implementation of Africa's first Central Bank Digital Currency (CBDC), the eNaira.
- Spearheaded the upgrade of the ERP applications and database suite (eight modules) in a record three days, resulting in $930,267 in cost savings.
- Spearheaded the migration of WSS (Production and DR sites), application, and database servers from Cisco UCS to an HCI environment, saving the bank approximately $30,000.
- Configured Oracle Enterprise Manager (OEM 13.5), increasing DBA productivity by 80%, and reducing database testing time by 90%.
- Achieved significant cost savings by migrating the WSS 6.5 database to PostgreSQL on Ubuntu Linux.
- Enhanced DR capabilities by implementing SnapMirror for the E-business suite, reducing RTO from 4 hours to 15 minutes.
- Improved data accessibility by providing access to legacy WSS 6.5 data via Power BI.
- Led the implementation team for the bank's enterprise Document and Workflow Management System (DockFlow).
- Provided proactive 24/7 application support for all critical systems.
- Provided DBA support for multiple Oracle databases, resolving performance issues.
- Ensures the effective maintenance of all IT applications and databases (T24, E-Business Suite, RTGS, PMS, etc.).
- Ensures the effective running of all Unix operating systems and storage.
- Ensures all databases are well-tuned for effective performance.
- Performs system and database implementations and upgrades.
- Assists in developing IT application plans and setting IT application policies.
- Reviews application parameters for tuning.
- Optimized the performance of critical systems (T24, SOA, CCMS, CRMS, WSS, ERP) through SQL tuning, index optimization, and other techniques.
- Supervises the update and upgrade of hardware and software, as it may affect application deployment and performance.
- Supervises the planning and monitoring of events, faults, and performance issues for all applications.
- Ensures all application issues are resolved and documented.
- Defines detailed desktop, server, network device, and facilities maintenance requirements.
- Ensures all applications are deployed to users effectively and promptly.
- Supervises all application implementations and upgrades on production systems.
- Managed the tracking of all information in databases and reported operational status.
- Managed the deployment and workload of team members, and supervised systems performance management.
- Ensured business continuity for all applications by executing quarterly DR exercises.
- Designed and delivered strategic data solutions, enhancing scalability, automation, efficiency, performance, accuracy, and security.
- Successfully integrated the WallStreet Suite with Refinitiv for real-time securities data.
- Drove automation initiatives for processes like CMEDs deployment, cash withdrawals for the armed forces, FX payments, and eNaira database replication.
- Maintains Unix operating systems and system databases to maximize performance; performs system and database implementations, and upgrades.
- Manages application integrations.
- Managed the deployment and workload of team members, and supervised systems performance management.
- Managed systems integration, application development, and software application support.
Oracle Webcenter Portal Specialist
RedPages Consulting
SA
04.2012 - 04.2013
- Providing Oracle solutions to organizations
- Setting up Oracle data centers and products
CPAS Systems Inc
02.2011 - 08.2011
- Requirements gathering and analysis
- Oracle 11g installation
- Database analysis and cleaning
- Data migration from MSSQL server to Oracle database
Software Development Engineer
Voanda Nigerian Ltd
03.2009 - 09.2009
- Content Development / programming
- Software Development
- Involved in providing IT solutions to various organizations
- Development of software solutions for schools, job seekers and employees
Support Assistant
Musty Digital & Security Systems Ltd.
Abuja
04.2008 - 02.2009
- Involved in the development of information and communication Technology Solutions
- Implementation of Digital Security Systems, involved in Updating and maintaining the Vehicle Tracking System
- General Duties, Updating and maintaining the company website
Industrial Training
Economic And Financial Crimes Commissions, EFCC
Abuja
07.2006 - 09.2006
- Maintenance of network computers and installation of Microsoft windows and any software or Antispyware and anti virus programs
- Responsible for providing support for computer users, participating in seminars and workshops and updating the company's website
- Involved in managing the database by using system software called Human Manager to update staff records
- Involved in trouble shooting computer systems in the organization, upgrading memory modules, giving IP addresses to new systems on the network, running anti virus scans to check virus infected systems
- Worked with Microsoft Access, Microsoft office InfoPath, share-point (to create a local intranet), human manager, laser fiche (used for scanners) and mambo (which is a content management system that can be used to build and maintain website)
Education
Blockchain Technologies: Business Innovation And A -
Massachusetts Institute of Technology
USA03.2022
MSc - Software Engineering
Heriot Watt University
Dubai11.2010
B S - Computer Studies And Information Technology
Eastern Mediterranean University
Cyprus01.2007
Obtained SSCE Certificate -
Zamani College Malali
Kaduna01.1999
Primary School Certificate -
NNPC Staff School
Kaduna01.1993
Skills
- Enterprise Application Administration
- Expert Database Administration (Oracle, MySQL, PostgreSQL, SQL Server)
- System Migrations & Upgrades (Application & Database)
- Proficient in SQL and PL/SQL
- Troubleshooting application and database issues
- Understanding of application architectures
- Application Support and API Integration
- Cloud Services (AWS, Azure, Google Cloud)
- Programming skills (Java, JavaScript, Python, C, PHP, SQL, HTML5, etc)
- Operating System Proficiency (MS Windows Server, Linux/Unix)
- Shell scripting
- DevOps Basic/Intermediate - Git, Jenkins, Kubernetes, and Ansible
- Continuous Integration/Continuous Delivery (CI/CD)
- Enterprise Systems Management
- Strong communication skills
- Effective Problem Resolution
- Interdisciplinary teamwork
- Experience working in Agile and Prince2 project methodologies
- Team player
- Goal-Oriented
- Adaptability
- Problem Solving
- Consistently reliable
- ITIL Framework
- Cybersecurity and Compliance
- Certified in cloud, database, and cybersecurity domains
- Demonstrated expertise in Oracle, Azure, IBM MQ, Google Cloud, and Citrix
- Skilled in Oracle EBS and Microsoft Active Directory integration
- Database (Design, Implementation, Performance Tuning & Optimization, Clustering & High Availability, Backup & Recovery)
- IBM MQ administration
- Experience with Citrix for accessing the Bloomberg Terminal
- Adequate knowledge of networking – LAN/WAN
Certification
• DevOps Basic/Intermediate - Git, Jenkins, Kubernetes and Ansible
• Certified Blockchain Developer
• AWS Certified Solutions Architect – Associate
• Oracle Cloud Infrastructure 2019 Certified Architect Associate
• Oracle Cloud Infrastructure 2019 Certified Architect Professional
• Oracle Cloud Infrastructure Foundations 2020 Certified Associate
• Oracle Autonomous Database Cloud 2019 Certified Specialist
• Oracle WebCenter Portal 11g Essentials
• Oracle Database SQL Expert
• Oracle Database 11g: Administration I
• IMF - Africa Training Institute - Financial Market Infrastructures: Principles and Practices
• Oracle Database 11g: Administration II
• Certified in Cybersecurity
• Bloomberg Technical support Training
• Data Analysis
• Automate Linux System Administration Tasks by Using Ansible
Awards
- High Honor Awards (four years in university)
- Best Graduating Student Award
- CBN Deputy Governor's Commendation Award
- CBN ITD Director's Commendation Award
- CBN Governor Commendation Award 2025
- MIT Certificate (with Distinction) in Blockchain Innovation
- Statement of Accomplishment (with Distinction) in Data Analysis
References
- Isah Samaila, Deputy Director, Operations Management Division, IT, Central Bank of Nigeria, 080-222-27457, sisah@cbn.gov.ng
- Stephen Gill, Head of the School of Mathematical and Computer Sciences, Heriot-Watt University Dubai Campus, 0097144358761, s.gill@hw.ac.uk
- Prof. Mustafa Tuncel, School of Computing and Technology, EMU, Eastern Mediterranean University, 00903 926301360, btyo.bilgi@emu.edu.tr
- Prof. Cantas Ozerek, Professor, Eastern Mediterranean University, 00903926301141, btyo.bilgi@emu.edu.tr
Timeline
Application Database Administrator
Central Bank Of Nigeria
04.2013 - Current
Oracle Webcenter Portal Specialist
RedPages Consulting
04.2012 - 04.2013
CPAS Systems Inc
02.2011 - 08.2011
Software Development Engineer
Voanda Nigerian Ltd
03.2009 - 09.2009
Support Assistant
Musty Digital & Security Systems Ltd.
04.2008 - 02.2009
Industrial Training
Economic And Financial Crimes Commissions, EFCC
07.2006 - 09.2006
Blockchain Technologies: Business Innovation And A -
Massachusetts Institute of Technology
MSc - Software Engineering
Heriot Watt University
B S - Computer Studies And Information Technology
Eastern Mediterranean University
Obtained SSCE Certificate -
Zamani College Malali
Primary School Certificate -
NNPC Staff School
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