Senior Sql Developer

Tumaini Consulting; Gauteng; Hybrid; ZAR 900 000 - 1 200 000; Full time

Job summary

A leading consulting firm is seeking a Senior C# .NET SQL Developer to join their team in Randburg, Johannesburg. The ideal candidate will have over 10 years of experience in programming with C#, .NET, and SQL, including a strong grasp of relational databases and T-SQL. This hybrid position primarily allows remote work, with occasional office visits. Excellent communication and collaboration skills are essential for team success.

Qualifications

• Minimum of 10 years' experience in C#, .NET, and SQL with hands-on coding.
• Strong understanding of relational databases and T-SQL.
• Experience with AI coding tools to improve development speed.

Skills

C#

.NET

SQL

T-SQL

SSIS

SSRS

Excel (with VBA)

HTML

CSS

JavaScript

TypeScript

RESTful APIs

SOAP Web Services

Python

Linux

Job description

My client is looking for a Senior C#.

NET SQL Developer to join their team in Randburg, Johannesburg (Hybrid – primarily remote, with rare office visits required).

Requirements

• Minimum of 10 years' experience programming in C#, .NET and SQL, with at least 5 recent years of daily hands‑on coding.
• Strong understanding of relational databases, design, and T‑SQL (stored procedures, triggers, views, indexes, constraints, foreign keys).
• Experience with SSIS, SSRS, and Excel (with VBA) over the past 3 years.
• Proven ability to optimise SQL queries and stored procedures using query analyser tools.
• Experience with AI coding tools to improve development speed and quality.
• Solid general programming skills, with exposure to C#, .NET Core, ASP.NET, Blazor, Razor Pages.
• Web development experience with HTML, CSS, JavaScript / TypeScript, RESTful APIs, and SOAP Web Services.
• Advantageous: CLR development for SQL Server, Python (AI, APIs, automation), Linux, Asterisk, Node Red, and other SQL databases (MySQL, PostgreSQL).
• Strong problem‑solving ability, logical reasoning, and business process understanding.
• Excellent communication skills and ability to work collaboratively in a remote‑first team.

If you would like to apply for this position, please send transcripts with applications.

Should you meet the requirements for this position, please apply today. Alternatively contact or visit our website. Correspondence will only be conducted with short listed candidates.

Should you not hear from us within 3 days, please consider your application unsuccessful.