Johannesburg: Senior Back End Developer – SQL – Edenvale posted by WMS Secure

January 15, 2026 Jobs in Central Johannesburg

Job Description

About the Role

We are seeking a highly skilled Senior Back-End Developer with strong SQL expertise to design, develop, and maintain robust back-end systems. The successful candidate will play a key role in system architecture, database optimisation, and mentoring junior developers while working closely with cross-functional teams.

Key Responsibilities

Design, develop, and maintain scalable back-end applications
Develop and optimise complex SQL queries, stored procedures, and database schemas
Ensure data integrity, performance, and security across systems
Integrate front-end elements with server-side logic
Participate in system architecture and technical decision-making
Troubleshoot, debug, and resolve application issues
Conduct code reviews and enforce best development practices
Mentor junior and mid-level developers
Collaborate with business analysts, product owners, and QA teams

Requirements

5+ years of back-end development experience
Advanced proficiency in SQL (MS SQL / MySQL / PostgreSQL)
Strong experience with back-end languages such as C#, Java, Python, or PHP
Experience working with APIs (RESTful services)
Solid understanding of database design, indexing, and performance tuning
Experience with version control systems (Git)
Strong problem-solving and analytical skills

Qualifications

Bachelor’s degree in Computer Science, IT, or related field (or equivalent experience)

Salary & Benefits

Competitive salary according to industry standards.

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How to Apply

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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.

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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.

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