Senior Backend Engineer (SQL) – Hybrid, Mentoring

Avatar Advisory - Avatar Human Capital; Johannesburg; Hybrid; ZAR 600 000 - 800 000; Full time

Job summary

A technology consulting firm in South Africa is seeking a Senior Back-End Developer with strong SQL expertise. This role focuses on designing, developing, and maintaining scalable back-end applications while collaborating with cross-functional teams. Applicants should have over 5 years in back-end development, advanced SQL proficiency, and experience with languages such as C#, Java, Python, or PHP. Mentoring junior developers is a key component of this position, making it ideal for leaders in the field.

Qualifications

• 5+ years of 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 complex SQL queries, stored procedures, and database schemas.
• Ensure data integrity, performance, and security across systems.

Skills

Back-end development

SQL expertise

C# or Java or Python or PHP

API development

Mentoring

Education

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

Tools

Docker

Kubernetes

Git

Job description

A technology consulting firm in South Africa is seeking a Senior Back-End Developer with strong SQL expertise. This role focuses on designing, developing, and maintaining scalable back-end applications while collaborating with cross-functional teams. Applicants should have over 5 years in back-end development, advanced SQL proficiency, and experience with languages such as C#, Java, Python, or PHP. Mentoring junior developers is a key component of this position, making it ideal for leaders in the field.