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

Senior Back End Developer

Position Area: RandPark Ridge

K6-8 years Back End Developing experience

At least 3 years in Senior position Hybrid

2 years Docker/Kubernetes experience

5 years developing APOs for FE Development

3 years Agile/scrum framework

5 years SQL

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

Minimum Requirements

• Bachelors degree in Computer Science, IT, or related field (or equivalent experience)

• 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

• 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

Advantageous Skills

• Experience with cloud platforms (AWS, Azure, or similar)

• Knowledge of microservices architecture

• Experience in Agile / Scrum environments

• Exposure to DevOps and CI/CD pipelines

Competencies

• Strong attention to detail

• Excellent communication and teamwork skills

• Ability to work independently and manage multiple priorities

• Leadership and mentoring capability