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Johannesburg: Senior IT Developer

Johannesburg: Senior IT Developer

Posted on 2025-08-06 00:00:00

Employer Unspecified
Category IT / Computing / Software
Location Gauteng  / Johannesburg

Job Summary

My client, a key player in the specialised finance industry, is seeking a Senior IT Developer to lead the development of complex systems that power their operations. This individual will play a crucial role in designing, building, and enhancing applications using modern .NET technologies. From architecting SQL solutions to developing Blazor Server components, this role requires a strong technical backbone and a collaborative mindset. You’ll work closely with cross-functional teams, provide technical direction to junior developers, and continuously optimise existing systems for scalability and performance. This is an opportunity to contribute to impactful projects in a business where technology is central to the service offering. Skills & Experience: Minimum 7 years’ experience in software development At least 3 years experience with: C#, .NET, Blazor Server, Visual Studio Bootstrap , Web API , .NET Core , .NET Framework 4.5 , Entity Framework Core , MVC , WCF Strong experience in Microsoft SQL Server (2017) writing queries, stored procedures, functions Solid grasp of system architecture & design principles (SOLID, GoF patterns) Financial services industry exposure is a plus Advantageous: familiarity with JavaScript , HTML , SSIS , CRM systems , or SharePoi Qualification: A Bachelor’s degree in Computer Science , Information Systems , or related technical field is essential Contact Kauthar Marcus on

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Johannesburg: Senior IT Developer

Johannesburg: Senior IT Developer

Posted on 2025-08-05 00:00:00

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Job Summary

Looking to lead the next wave of innovation in financial technology? This role places you at the forefront of high-impact projects where your technical expertise wont just be used – it will be relied upon. With a clear focus on Blazor Server, SQL Server, and the broader .NET stack, youll help shape critical systems in one of South Africas largest privately-owned providers of specialised financial solutions. Merchant West is on the lookout for a Senior IT Developer with the depth and experience to take ownership of development initiatives, collaborate across teams, and raise the bar for clean, scalable, and high-performing code. If youre ready to take on full-stack challenges in a highly technical, mission-driven environment, this might be your next move.

Click Go Apply to apply online!


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An exciting opportunity awaits at a prestigious financial service provider for a Senior IT Developer (.NET). Are you passionate about crafting high-performance backend solutions and mentoring the next generation of developers? Join our dynamic tech team as a Senior IT Developer , where innovation meets impact. Key Responsibilities: Design, implement, and manage scalable software solutions Develop and maintain SQL Server databases with a strong emphasis on reliability Build interactive components using Blazor Server architecture Conduct unit testing and ensure optimal system performance Collaborate across multidisciplinary teams to enhance and maintain existing systems Lead and mentor junior developers, upholding high standards in code quality What we’re looking for: Proven expertise in backend development and database management Deep understanding of Blazor Server and SQL Server Strong problem-solving skills and attention to detail Experience in agile environments and cross-functional collaboration Leadership capabilities and a commitment to continuous improvement Why Join Us? This is more than just a coding role—it’s your chance to shape critical backend services that drive growth in the financial services sector. You’ll be working at the heart of a team that values innovation, ownership, and continuous learning. Experience: 7 years of working experience in the IT field (non-negotiable) Over 3 years of experience working with C#, Visual Studio, .NET, and Blazor Server (non-negotiable) Synergy Enterprise Over 3 years of experience with Bootstrap and the .NET technology stack, including Web API, MVC, .NET 4.5, .NET Core, EF Core, and WCF (non-negotiable) Experience working in the financial service industry (advantageous)  Qualifications: • B-degree in Computer Science or related technical field    Responsibilities: • Researching, designing, implementing, and managing software programs and services • Creating and maintaining SQL Server database tables, functions, and stored procedures • Implementing unit testing for new software modules or services • Maintaining and upgrading existing systems • Collaborating with other developers and business teams • Developing Blazor Server components

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