performance tuning jobs in Johannesburg

A recruitment agency is seeking a Senior PostgreSQL Developer located in Johannesburg, South Africa. In this role, you will design and develop cloud-based database systems using AWS, focusing on data modeling, SQL performance tuning, and adherence to architectural standards. Ideal candidates should have a Bachelor's Degree in Computer Science and at least 6 years of hands-on experience with SQL...

A leading technology firm is seeking a highly skilled Senior SQL Consultant / DBA to optimize Microsoft SQL Server and MySQL environments. The ideal candidate will have 5+ years of experience, strong AWS knowledge, and proven performance tuning abilities. You will work on database design, implementation, and management in both on-prem and cloud settings, contributing to various projects and...

A tech consulting company in Johannesburg is seeking a MySQL Database Administrator to ensure the performance and reliability of database systems. You will be responsible for the implementation and maintenance of these systems while providing support to data integration teams. Ideal candidates will have strong SQL skills and experience in performance tuning. This role offers competitive...

We are seekinga highly skilled Senior Performance Engineer to join our team, ensuringour analytics systems can handle massive telco data loads efficiently andreliably. You will play a pivotal role in designing, testing, and optimizinghigh-performance systems to deliver actionable insights with minimal latency,supporting the rapid growth and demands of modern telco...

Overview AI Development Specialist (Azure) – 6-Month Contract | Enterprise Financial Services Programme Contract Period: 02 February 2026 – 31 July 2026 We are seeking a senior AI Development Specialist to lead the design, build, and deployment of production-grade AI solutions on Microsoft Azure for a large-scale enterprise programme within the financial services sector. This is a hands-on,...

Job Title: Senior Windows Server / Systems Administrator Experience Required: 7+ years Role Overview We are seeking an experienced and highly skilled Windows Server / Systems Administrator to manage, maintain, and optimize enterprise Windows-based infrastructure. The ideal candidate will have strong hands‑on experience with Windows Server environments, Active Directory, virtualization, and...

Our client’s Microsoft Business Solutions team is a Microsoft Gold Partner and leader in Microsoft software implementations for medium to large organisations, providing their clients with the ability to keep up with the ever-changing digital world by implementing Microsoft’s Enterprise Resource Planning (ERP) and Customer Engagement (CE) software from the Microsoft Dynamics 365 (D365) software...

Our client is a is a premier water treatment company based in Johannesburg, South Africa. With decades of experience in the industry, they have established ourselves as leaders in technology and solutions for the purification and treatment of water in the African market. Job Responsibilities - Own process design, commissioning, and performance run leadership for packaged water treatment systems...

Join to apply for the DB2 LUW Database Administrator role at Blue Pearl 2 days ago Be among the first 25 applicants Join to apply for the DB2 LUW Database Administrator role at Blue Pearl Get AI-powered advice on this job and more exclusive features. Job Description We are seeking a skilled DB2 LUW (Linux, UNIX, Windows) Database Administrator to design, maintain, and optimize our DB2...

We are seeking a highly skilled Full Stack Developer to design, develop, and maintain enterprise-grade web applications. This role involves working across both front-end and back-end systems, ensuring high-quality, scalable, and maintainable solutions. You will collaborate closely with business analysts, Scrum Masters, DevOps, and other stakeholders throughout the full software development...

Overview Johannesburg, South Africa | Posted on 09/11/2025 Our client offers a groundbreaking web-based platform designed to simplify the management of share incentive plans for companies. By making the understanding, administration, and accounting of share plans more accessible, the platform caters to both listed and unlisted businesses globally. This role is an exciting opportunity for a...

JOB TITLE Intermediate Data Engineer LOCATION Stellenbosch / Johannesburg (Hybrid) ABOUT CYBERLOGIC Cyberlogic is a trusted Managed Solutions Provider with offices in South Africa, Mauritius, and the UK. Serving a diverse range of clients, spanning numerous industries, including the international maritime sector, Cyberlogic specialises in IT leadership, cyber security, cloud solutions, and...

Responsible for the maintenance of database management systems, including drawing up of database diagrams, security management, back-up and performance tuning. Duties and responsibilities - Liaise with Business Analysts, to determine the most appropriate way, of affecting changes required by business in the various reports and database structures. - Provide all levels of support telephonically...

TECHNICAL LEAD WHO PLATFORM45 IS We are responsible for code changing the lives of people around the world, every day. We solve complex problems and build big ideas. And we don’t stop. We believe in the ability of technology to make the world a better place; we’re driven to rip through conformity and create new solutions, and smarter habits. We know why we’re here: To unleash the potential of...

Dariel Johannesburg, Gauteng, South Africa Senior Java Software Engineer At Dariel, we don’t just build software — we solve complex, business‑critical problems. Our developers are trusted to deliver high‑performance systems across industries like banking, telecoms, and healthcare. If you're passionate about clean code, scalable architecture, and meaningful work, this is your opportunity to make...

Qualifications - 10 to 12 years of general work experience with at least 10 years of relevant experience in project administration, project management, and program management. - Experience as a scrum master and coaching Agile teams - The minimum qualification required for this job is a matric (Grade 12), but a diploma or degree in a business discipline or in Information Systems will be an...

Join to apply for the SAP Finance and Controlling (FICO) role at Blue Pearl 1 day ago Be among the first 25 applicants Join to apply for the SAP Finance and Controlling (FICO) role at Blue Pearl Get AI-powered advice on this job and more exclusive features. Role Overview: We are looking for a knowledgeable and results-oriented Job Description Role Overview: We are looking for a...

A leading recruitment firm is seeking an experienced MS SQL & NoSQL Developer to join a dynamic travel technology team in Johannesburg. The ideal candidate will possess strong expertise in both SQL and NoSQL databases, including practical experience in database design, development, and performance tuning. Responsibilities include designing and maintaining database systems, optimizing queries, and...

About the job Intermediate Database Administrator Intermediate Database Administrator - 6 Month Contract Key Responsibilities - Install, configure, and maintain database systems. - Monitor database performance, implement changes, and apply patches and upgrades. - Optimize database performance through tuning and efficient query management. - Collaborate with development teams to design and...

Data Engineer - Machine learning/ Artificial Intelligence Job Openings Data Engineer - Machine learning/ Artificial Intelligence About the job Data Engineer - Machine learning/ Artificial Intelligence Key roles and responsibilities: - Undertake the processing of structured and unstructured data to utilize in data science activities. - Support the data analysis of large information to discover...