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Senior Database Administrator

Listing reference: jse_000732

Listing status: Online

Apply by: 12 November 2026

Position summary

Industry: IT & Internet

Job category: Banking, Finance, Insurance. Stockbroking

Location: Sandton

Contract: Permanent

Remuneration: Market Related

EE position: Yes

About our company

WHY JOIN THE JSE?  The JSE recognises that its success and strength depend on the quality of its employees. We are committed to fostering a culture of continuous learning and high standards of performance. Our employee wellness programme is designed to encourage work-life balance for employees. We naturally seek to empower staff and encourage diversity and opportunities for all.

Introduction

To provide specialist administration, engineering and operational ownership for enterprise database platforms across on-premises, Microsoft Azure and Amazon Web Services. The role ensures database services meet agreed availability, resilience, security, performance and recovery requirements, while enabling safe change, modernisation, automation and cost-effective growth. The Senior DBA acts as an escalation point and trusted advisors to application, infrastructure, security, architecture and business stakeholders.

Job description

Service reliability and BAU operations

·       Administer, monitor and support production and non-production database services against agreed SLAs and operational controls.

·       Perform installation, configuration, patching, upgrades, backups, restores, integrity checks, capacity management and lifecycle maintenance.

·       Diagnose and recover routine and complex database availability, integrity, access and performance issues; escalate high-risk or highly complex incidents and vendor engagement to the Technical Lead – Database Platforms.

·       Maintain accurate platform inventories, support documentation, runbooks, standards and known-error records.

Performance and capacity

·       Monitor workload health, query performance, waits, blocking, execution plans, index health, storage utilisation and resource consumption.

·       Tune database configuration, queries, and physical design in partnership with application teams.

·       Forecast capacity and licensing needs, identify inefficient usage, and recommend right-sizing or service-tier changes.

Security, risk and compliance

·       Implement least-privilege access, role-based controls, privileged access processes, encryption and secrets management in line with approved standards.

·       Perform or support database security reviews, vulnerability remediation, transaction auditing and access recertification.

·       Ensure database changes follow change, release, testing and segregation-of-duties controls.

·       Support evidence collection for internal assurance, external audit and regulatory obligations.

Availability, backup and disaster recovery

·       Operate and test approved high-availability and disaster-recovery solutions and contribute to designs appropriate to workload criticality.

·       Support the Technical Lead and service owners in validating recovery objectives, and maintain backup retention, restore procedures and recovery evidence.

·       Coordinate planned resilience tests and ensure corrective actions are tracked to closure.

Cloud database engineering: Microsoft Azure

·       Administer Azure SQL Database, Azure SQL Managed Instance and SQL Server on Azure Virtual Machines using approved patterns, standards and runbooks.

·       Configure and review identity, network access, private connectivity, encryption, backup, geo-resilience, monitoring and alerting.

·       Contribute technical analysis and execution support for migrations between on-premises SQL Server and Azure services, including compatibility, performance and recovery validation.

·       Use Azure-native automation and monitoring capabilities to standardise routine administration and improve service visibility.

Cloud database engineering: Amazon Web Services

·       Administer SQL Server, PostgreSQL and potentially other Database workloads on Amazon RDS or Amazon EC2 using approved patterns, standards and runbooks.

·       Configure and review parameter and option settings, identity and access, network controls, encryption, backups, maintenance windows, monitoring and multi-AZ resilience where applicable.

·       Support and execute approved database migration and replication activities, with rollback, validation and data-protection controls.

·       Identify optimisation opportunities for instance classes, storage and licensing, and provide evidence-based recommendations to the Technical Lead and relevant cloud stakeholders.

Automation and observability

·       Automate repeatable DBA tasks using T-SQL, PowerShell, Python and approved infrastructure or workflow tooling.

·       Create actionable dashboards, alerts and health reports that reduce manual checks and improve early detection.

·       Use version control, peer review and controlled deployment practices for database administration scripts and configuration artefacts.

Change, projects and migration

·       Plan, document and execute database implementations, upgrades, deployments, migrations and decommissioning across development, test and production environments.

·       Provide database input to solution designs, project estimates and release-readiness reviews, escalating material architectural decisions to the Technical Lead – Database Platforms.

·       Validate data integrity, security, performance and recoverability before and after material changes.

Stakeholder service and technical leadership

·       Translate complex technical issues into clear business impact, risk and options for decision-makers.

·       Provide practical database guidance to developers, engineers, security teams and service owners within approved standards, and refer architectural exceptions to the Technical Lead – Database Platforms.

·       Share knowledge, maintain usable documentation and participate in team cross-skilling to reduce key-person dependency.

·       Work constructively with vendors under the direction of the Technical Lead and contribute technical input on database products and support practices.

Minimum requirements

Essential

·                Relevant IT degree, diploma or equivalent demonstrable professional experience.

·                Relevant Vendor Certifications (Microsoft, AWS, Azure, etc.)

·                5 to 10 years of hands-on database administration experience, including practical responsibility for production Microsoft SQL Server environments.

·                Strong T-SQL administration and troubleshooting capability.

·                Practical experience with backup and restore, high availability, disaster recovery, performance tuning, security, patching and change control.

·                Working knowledge of Windows Server, clustering, storage, networking, DNS, certificates and authentication concepts relevant to database services.

·                Practical exposure to at least one public cloud and a sound understanding of secure, reliable database operations.

·                Ability to participate in operational support and after-hours change or incident activities when required by the support model.

·                PowerShell, infrastructure as code, CI/CD or database deployment automation experience.

·                Experience in a highly regulated, high-availability or financial-markets environment.

·                Current role-relevant Microsoft Azure, AWS, SQL Server, PostgreSQL or IT service management certification.

Advantageous

·                Hands-on experience across both Microsoft Azure and AWS.

·                Azure SQL Database, Azure SQL Managed Instance, SQL Server on Azure Virtual Machines, Amazon RDS for SQL Server or PostgreSQL, and database workloads on EC2.

·                PostgreSQL administration experience, including managed cloud deployments.

Technical Competencies

Microsoft SQL Server:  Setup and configuration; engine internals; security; backup and restore; Always On and clustering; T-SQL; query and index tuning; capacity and licensing awareness.

Azure database services:  Azure SQL options; identity and network security; monitoring; resilience; migration; backup; performance and cost management.

AWS database services:  Amazon RDS and EC2 database patterns; IAM awareness; VPC connectivity; encryption; monitoring; resilience; migration; performance and cost management.

PostgreSQL exposure: Core administration, role and privilege management, backup and restore, performance diagnostics and managed-service constraints.

Operations and governance:  ITIL-aligned incident, problem and change practices; auditability; runbooks; lifecycle management; vendor support and service reporting.

Automation and engineering:   T-SQL and PowerShell; scripting discipline; source control; repeatable deployments; monitoring and alerting; configuration standardisation.

Behavioral Competencies

·                Decision-making grounded in evidence, risk and business impact.

·                Quality focus and attention to detail.

·                Calm, methodical troubleshooting and ownership through resolution.

·                Planning, prioritisation and disciplined execution.

·                Clear written and verbal communication for technical and non-technical audiences.

·                Collaboration, stakeholder management and constructive challenge.

·                Continuous learning, adaptability and knowledge sharing.

·                Innovation that improves reliability, control, efficiency or cost.

Click here to apply

Senior Information Security Specialist

Listing reference: jse_000729

Listing status: Online

Apply by: 13 November 2026

Position summary

Industry: Financial Services

Job category: Network Administration and Security

Location: Sandton

Contract: Permanent

Remuneration: Market Related

EE position: Yes

About our company

WHY JOIN THE JSE?  The JSE recognises that its success and strength depend on the quality of its employees. We are committed to fostering a culture of continuous learning and high standards of performance. Our employee wellness programme is designed to encourage work-life balance for employees. We naturally seek to empower staff and encourage diversity and opportunities for all.

Introduction

The Johannesburg Stock Exchange (JSE) is seeking a highly experienced Senior Information Security Specialist to join our Information Technology team. This role is responsible for driving Information Security Assurance services across the JSE technology landscape, ensuring the confidentiality, integrity, and availability of critical systems and data. As a subject matter expert, you will play a pivotal role in designing, implementing, monitoring, and evolving security controls across on-premises and cloud environments while ensuring compliance with industry standards and regulatory requirements.

Job description

Information Security Assurance & Risk Management

• Identify, assess, report on, and mitigate security risks across applications, infrastructure, and cloud environments.
• Conduct security risk assessments, audits, vulnerability assessments, and penetration testing activities.
• Drive the remediation of security vulnerabilities in line with established vulnerability management processes.
• Investigate security incidents, perform root cause analysis, and support forensic investigations.
• Develop and implement security metrics and reporting frameworks for senior management.

Security Architecture & Governance

• Provide specialist security input into enterprise architecture, solution design, and technology adoption initiatives.
• Ensure security principles are embedded throughout the Software Development Lifecycle (SDLC).
• Review architecture designs and recommend appropriate security controls and enhancements.
• Contribute to the development and maintenance of security policies, standards, and procedures.

Compliance & Regulatory Assurance

• Support regulatory and compliance audits.
• Drive remediation activities resulting from audit findings.
• Ensure alignment with industry and regulatory frameworks, including:
• POPIA
• Cyber Crimes Act
• SWIFT
• NIST
• ISO Standards
• OWASP
• CIS Controls
• Cloud Security Alliance (CSA)

Stakeholder & Vendor Management

• Partner with Information Security leadership, Enterprise Architects, IT teams, and business stakeholders.
• Manage relationships with security technology vendors and service providers.
• Engage with industry forums and security communities to stay ahead of emerging threats.

Security Operations & Continuous Improvement

• Provide Level 3 security support across the organisation.
• Monitor and maintain security technologies and controls.
• Lead and contribute to security projects and strategic initiatives.
• Mentor and support junior security professionals.
• Stay current with emerging cybersecurity threats, technologies, and best practices.

Minimum requirements

Qualifications

• Degree in Information Systems, Information Security, Computer Science, or a related field.
• One or more of the following certifications:
• CISSP
• CISM
• CISA
• CRISC
• Licensed Penetration Tester (LPT)
• Relevant F5 Certifications (101, 201, 301, 302, 303, 304)
• Cisco Security Certifications (including FireSIGHT IPS)
• Advantageous Certifications
• Certified Ethical Hacker (CEH)
• Application Penetration Testing Certifications
• Network Security Administrator (NSA)
• Certified Application Security Tester

Experience

• Minimum 10 years’ IT experience.
• Minimum 7 years’ experience in an Information Security Specialist role.
• Proven experience across enterprise security operations, governance, risk management, and security architecture.

Knowledge:

• Software applications (e.g., Outlook, Word, Excel, Access, Internet, Email)
• Knowledge in Microsoft Visio (Process flows)
• Penetration testing principals and methodologies
• Penetration testing techniques and tools (Burp, Metasploit, Wireshark, John the Ripper, Cain & Abel, Kali, Nmap)
• Software Development Lifecycle (Agile Adaptive & Waterfall Predictive)
• Intermediate programming knowledge
• Intermediate database knowledge
• Diagnostics/Troubleshooting for application, database & hardware
• Advanced Knowledge in Vulnerability Management process
• Advanced Knowledge in Vulnerability Management tools (Nessus, Rapid7, OpenVAS)
• Technology Products/Platforms and Solutions (Microsoft, Linux/Unix, VMWare)
• Advanced knowledge in various operational security controls
• Advanced knowledge in Networking Principles
• Advanced Knowledge in Industry standard Security principles
• Knowledge of Industry standards (ISO, NIST, OWASP, CIS, CSA)
• Knowledge of JSE specific regulatory standards and requirements (POPIA, SWIFT, Joint Standards Framework, Cyber Crimes Act)
• Knowledge in Industry standard Security design principles
• Information security principles in the enterprise architecture frameworks
• Cloud technologies (Azure and AWS) architecture and security
• Data Loss principles and data loss technologies
• Encryption principles, standards and technologies
• Operational security controls

Click here to apply

We wish you all the best with your applications