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Senior Oracle Database Administrator

3 months ago

Johannesburg, South Africa NTT Full time

Make an impact with NTT DATA
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion â itâs a place where you can grow, belong and thrive.

Your day at NTT DATA

The primary responsibility of the Senior Oracle Database Administrator is to ensure the availability, integrity and performance of complex and critical data assets. This role's responsibilities includes the installation, configuration, monitoring, optimization, and security of complex database systems. This role works closely with cross-functional teams to support data-driven applications, troubleshoot issues, and implement robust backup and recovery strategies. This role develops and implements automated processes and tools to improve database administration efficiency.

The Senior Oracle Database Administrator works closely with Change Control, Release Management, Asset and Configuration Management and Capacity and Availability Management to establish the needs of users, monitoring user access and security. This role assists in controlling access to databases environments through permissions and privileges.

The Senior Database Administrator is also responsible for Project work, new client take-on, migrations of Oracle Environments and Disaster Recovery .

What you'll be doing

Key Roles and Responsibilities:

  • Performs the installation, configuration, and maintenance of complex database management systems (DBMS), Oracle, MySQL, or others, as required.
  • Works independently, with general direction from the client, stakeholders, team lead, or senior manager, to perform operational tasks to resolve all escalated incidents/requests in a timely manner within the agreed SLA Provides timely and consistent updates of tickets with resolution tasks performed
  • Collaborates with software developers/architects to design and optimize database schemas, data models, and database-related applications.
  • Assists with the mapping out of the conceptual design for a planned database.
  • Participates in the writing of database documentation, including data standards, data flow diagrams, standard operating procedures and definitions for the data dictionary (metadata).
  • Creates, tests and executes data management languages.
  • Monitors database performance, identifies performance bottlenecks, and optimizes queries and indexing for optimal database performance.
  • Continuously monitors database systems to ensure availability, proactively identify potential issues, and takes appropriate actions.
  • Designs and implements robust backup and disaster recovery strategies to ensure data availability and business continuity.
  • Monitors production databases regularly or respond to any database issues by bringing down the database or taking the database offline.
  • Proactively supports the development of database utilities and automated reporting.
  • Sets up data sharing and disk partitioning.
  • Works closely with the Change Control and Release Management functions to commission and install new applications and customizing existing applications in order to make them fit for purpose.
  • Plans and executes database software upgrades and applies patches to keep systems up-to-date and secure.
  • Communicates regularly with technical, applications and operational employees to ensure database integrity and security.
  • Implements and manages security measures to safeguard databases from unauthorized access, data breaches, and data loss.
  • Maintains data standards in accordance with business requirements, NTT policies and the data protection legislations
  • Ensures data integrity and consistency by performing regular data validation, integrity checks, and data cleansing activities.
  • Conducts regular security audits and vulnerability assessments to maintain compliance with data protection standards and regulations.
  • Works collaboratively with cross-functional teams, including developers, system administrators, network engineers, and business stakeholders, to support database-related initiatives.
  • Provides technical support to end-users, assists with database-related enquiries, and conducts training sessions as needed.


Knowledge, Skills and Attributes:

  • Advanced proficiency in database administration tasks, including database installation, configuration, maintenance, and performance tuning
  • Strong knowledge of SQL (Structured Query Language) to write complex queries, stored procedures, and functions
  • Understanding of database security principles, access controls, and data encryption methods
  • Advanced working knowledge in database backup and recovery strategies to ensure data availability and business continuity
  • Ability to monitor database performance, identify and resolve issues, and optimize database operations
  • Advanced proficiency in data modelling techniques and database design principles to support data-driven applications
  • Ability to manage multiple projects concurrently while maintaining a high level of attention to detail on each project
  • Ability to learn new technologies as needed to provide the best solutions to all stakeholders
  • Ability to collect, organise, disseminate and present significant amounts of information
  • Ability to communicate complex IT information in simplified form depending on the target audience
  • Effective communication and collaboration skills to work with cross-functional teams and stakeholders
  • Advanced proficiency understanding of the principles of data architecture and data services
  • Advanced knowledge of application development lifecycle and data access layers
  • Demonstrate the ability to plan and organise
  • Excellent problem-solving skills to troubleshoot database-related issues and implement effective solutions
  • Excellent analytical skills related to working with unstructured datasets
  • Ability to manipulate, process and extract value from large, disconnected datasets
  • Ability to manage multiple database and application services in a highly complex integrated environment
  • Strong documentation skills to maintain comprehensive database documentation and data dictionaries
  • Ability to handle multiple tasks, set priorities, and meet deadlines in a dynamic IT environment
  • 5 years + experience on Oracle
  • Oracle DBA administration
  • Oracle Real Application Cluster experience
  • Oracle DataGuard
  • Oracle Certified Professional
  • Linux Scripting
  • Standby and Support 24 X 7
  • Performance Tuning
  • OEM setup
  • Installation and config of Oracle
  • Oracle RMAN
  • Documentation
  • Skills transfer to Juniors


Academic Qualifications and Certifications:

  • Bachelorâs degree or equivalent in computer science, engineering, information technology or related field
  • Relevant certification - Oracle Certified Professional
  • Required Experience:
    • Advanced demonstrated experience working as a Database Administrator within an Information Technology organisation
    • Advanced demonstrated experience with database backup and recovery best practices
    • Advanced demonstrated experience running and creating health assessment reports
    • Advanced demonstrated experience working with suppliers to deliver solutions
    • Advanced demonstrated experience in Oracle Enterprise
    • Advanced demonstrated experience managing databases

Workplace type:

On-site Working

About NTT DATA
NTT DATA is a $30+ billion trusted global innovator of business and technology services. We serve 75% of the Fortune Global 100 and are committed to helping clients innovate, optimize and transform for long-term success. We invest over $3.6 billion each year in R&D to help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start-up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure, and connectivity. We are also one of the leading providers of digital and AI infrastructure in the world. NTT DATA is part of NTT Group and headquartered in Tokyo.

Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.