Senior Back‑End Engineer (SQL) | Architect & Mentor

WMS Secure; Johannesburg; Hybrid; ZAR 600,000 - 800,000; Full time

Job summary

A leading technology firm is looking for a skilled Senior Back-End Developer based in Johannesburg, South Africa. The ideal candidate will have over 5 years of back-end development experience and a strong proficiency in SQL. Key responsibilities include designing, developing, and maintaining scalable applications while mentoring junior developers. Experience with programming languages such as C#, Java, or Python and cloud platforms like AWS or Azure is advantageous. This position offers a hybrid work model and requires excellent communication skills.

Qualifications

• 5+ years’ experience in back-end development.
• Advanced proficiency in SQL (MS SQL / MySQL / PostgreSQL).
• Strong experience with back-end languages such as C#, Java, Python, or PHP.

Responsibilities

• Design, develop, and maintain scalable back-end applications.
• Develop and optimise SQL queries and database schemas.
• Ensure data integrity, performance, and security across systems.

Skills

SQL expertise

Back-end development

C#

Java

Python

PHP

APIs

Agile/Scrum

Docker

Kubernetes

Education

Bachelor’s degree in Computer Science, IT, or related field

Tools

SQL Server

MySQL

PostgreSQL

Git

Job description

A leading technology firm is looking for a skilled Senior Back-End Developer based in Johannesburg, South Africa. The ideal candidate will have over 5 years of back-end development experience and a strong proficiency in SQL. Key responsibilities include designing, developing, and maintaining scalable applications while mentoring junior developers. Experience with programming languages such as C#, Java, or Python and cloud platforms like AWS or Azure is advantageous. This position offers a hybrid work model and requires excellent communication skills.