Johannesburg: Junior SQL Developer posted by iOCO Digital Pty Lty

March 9, 2026 Jobs in Central Johannesburg

iOCO Digital Pty Lty

Gauteng

Other IT/Computer

Job Description

Were looking for a Junior SQL Developer to support data-driven projects by building, maintaining, and optimising SQL queries and databases. This role is ideal for someone early in their data journey whos eager to learn, enjoys problem-solving, and wants exposure to real-world enterprise environments.

Youll work closely with senior developers, data engineers, and business stakeholders to support reporting, data integration, and operational systems.

What you’ll do:

Write, test, and optimise SQL queries, views, and stored procedures
Support database development and maintenance across existing systems
Assist with data extraction, transformation, and loading (ETL) activities
Help troubleshoot data-related issues and performance bottlenecks
Work with business teams to understand reporting and data requirements
Support dashboard and reporting solutions where required
Maintain documentation for database objects and processes
Follow best practices around data quality, security, and version control
Collaborate with senior team members on ongoing projects and enhancements

Your Expertise:

Basic to intermediate SQL (joins, subqueries, aggregates, indexing fundamentals)
Exposure to relational databases (SQL Server preferred; MySQL / PostgreSQL acceptable)
Understanding of database concepts (tables, relationships, constraints)
Comfortable working with datasets and basic data analysis
Familiarity with Excel and/or basic BI tools is advantageous
Any exposure to ETL tools or scripting (Python / PowerShell) is a plus
Strong attention to detail and logical thinking

Qualifications:

Diploma or Degree in IT, Computer Science, Information Systems, or similar
Relevant certifications or online training in SQL / databases are beneficial
Graduate or junior-level candidates welcome

Personal Attributes

Curious mindset and willingness to learn
Strong problem-solving ability
Good communication skills
Able to work independently and within a team
Organised and comfortable working in structured environments

View Job Johannesburg: CNC Artisan

How to Apply

Click the green “Go Apply” button below to apply directly online with the employer.

About Other IT/Computer Jobs in Gauteng

The IT and computer industry is one of the most dynamic and growing sectors in Gauteng, with a thriving job market that offers a wide range of opportunities for career advancement.

In terms of salary ranges, IT professionals in Gauteng can expect to earn anywhere from R800 000 per annum for junior positions to over R2 million for senior executives. The average salary for software engineers is around R1.5 million, while data analysts can earn between R900 000 and R1.2 million. With experience and skills, IT professionals in Gauteng can expect significant salary increases, with some roles offering bonuses and benefits that can increase their overall remuneration.

To succeed in the IT industry in Gauteng, candidates need to possess a range of key skills, including programming languages such as Java, Python, and C++, as well as experience with databases, cloud computing, and cybersecurity. Strong problem-solving skills, attention to detail, and excellent communication skills are also essential for success in this field. Additionally, knowledge of ITIL (Information Technology Infrastructure Library) and Agile methodologies can be highly valued by employers.

Several major companies and industries in Gauteng are currently hiring IT professionals, including technology firms such as Microsoft, IBM, and Oracle, as well as banks and financial institutions like Standard Bank and Nedbank. The finance industry is also a significant employer of IT staff, with roles ranging from software development to data analytics and cybersecurity.

Career growth opportunities are abundant in the IT industry in Gauteng, with many companies investing heavily in employee training and development programs. With experience and skills, IT professionals can move into senior leadership positions or start their own businesses, while also pursuing further education and certifications. The Johannesburg Stock Exchange (JSE) is also a significant employer of IT staff, with roles ranging from software development to data analytics and cybersecurity.

View Job Midrand: Procurement Specialist posted by FROGG Recruitment

Overall, the IT industry in Gauteng offers a wide range of exciting career opportunities for job seekers with the right skills and experience. With salaries that are competitive with those offered by major companies globally, there has never been a better time to pursue a career in this dynamic and rapidly evolving field.

This information provides general career guidance. Actual salaries and requirements vary by employer.

GO APPLY NOW

Safe & secure application process