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Johannesburg: Senior Database Developer

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Job Description

About the Role

We are seeking an experienced Senior Database Developer to join our team in Johannesburg. The successful candidate will be responsible for converting complex MSSQL stored procedures into PostgreSQL functions using PL/pgSQL, ensuring functional equivalence. This role requires a strong understanding of database development, performance optimization, and AI-assisted tools.

Key Responsibilities

  • Convert complex MSSQL stored procedures into PostgreSQL functions using PL/pgSQL
  • Refactor and eliminate Linked Server (OPENQUERY) logic and four-part naming conventions
  • Optimize extensive temporary table usage by redesigning logic using PostgreSQL temporary tables, CTEs, or arrays
  • Leverage AI-assisted development tools (LLMs and SQL translators) to generate initial code drafts and refine them into production-ready solutions
  • Perform detailed validation and testing to ensure migrated procedures produce identical outputs to the legacy MSSQL implementation
  • Analyse and optimise PostgreSQL execution plans to improve query performance
  • Simplify legacy logic by leveraging locally available PostgreSQL data instead of remote data calls

Requirements

  • 5 years experience working with T-SQL (Microsoft SQL Server)
  • Strong hands-on experience with PostgreSQL and PL/pgSQL
  • Proven experience migrating database logic from MSSQL to PostgreSQL
  • Strong understanding of dynamic SQL, set-based logic, and complex data types
  • Experience refactoring legacy SQL patterns into modern, performant database solutions

Qualifications

  • None specified

Salary & Benefits

  • Not mentioned in the original job description.

How to Apply

Click the green “Go Apply” button below to apply directly online with the employer.

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About IT / Computing / Software Jobs in Gauteng

In Gauteng, the IT and computing industry is a significant contributor to the province’s economy, with a steady demand for skilled professionals. Typically, this field is characterized by rapid technological advancements, innovative projects, and a high level of job satisfaction among employees. Generally, career prospects in this sector are strong, with a range of opportunities available across various industries.

Salaries for IT and computing professionals in Gauteng can vary widely depending on factors such as experience, company size, and industry sector. While it is common to see salaries ranging from R400 000 to R1,200 000 per annum, these figures are only a general guideline and actual salaries may differ significantly. For instance, senior executives or technical leads with extensive experience may command higher salaries, while entry-level positions may start at lower levels.

Common skills required for IT and computing roles in Gauteng include proficiency in programming languages such as Java, Python, or C++, knowledge of cloud platforms like AWS or Azure, and experience with agile development methodologies. Additionally, understanding of data analysis and interpretation, cybersecurity principles, and IT project management are often essential. Familiarity with popular software applications, such as Microsoft Office 365 or Google Workspace, is also beneficial.

The financial services sector, technology industry, manufacturing sector, and government departments are among the common industries that employ IT and computing professionals in Gauteng. These sectors require a range of skills and expertise, from data analysis to network administration, making them attractive options for career development.

For those seeking a career in IT and computing, there are numerous opportunities for professional growth and development. Typically, career progression involves moving into senior roles or specialized positions, such as technical lead, solutions architect, or data scientist. Opportunities for further education and training, such as certifications or postgraduate studies, can also enhance job prospects. Generally, a strong understanding of industry trends, networking, and continuous learning are essential for success in this field.

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This information provides general career guidance. Actual salaries and requirements vary by employer.



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How to Apply

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Posted in Jobs in Central Johannesburg, Jobs in Gauteng, Jobs in Johannesburg, Jobs in South Africa

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Johannesburg: Senior Database Developer

Advertisement



Job Description

About the Role

We are seeking an experienced Senior Database Developer to join our team in Johannesburg. As a key member of our database development team, you will be responsible for converting complex MSSQL stored procedures into PostgreSQL functions using PL/pgSQL, ensuring functional equivalence and high-performance solutions.

Key Responsibilities

  • Convert complex MSSQL stored procedures into PostgreSQL functions using PL/pgSQL
  • Refactor and eliminate Linked Server (OPENQUERY) logic and four-part naming conventions in favour of high-performance PostgreSQL queries
  • Optimize extensive temporary table usage by redesigning logic using PostgreSQL temporary tables, CTEs, or arrays
  • Leverage AI-assisted development tools (LLMs and SQL translators) to generate initial code drafts and refine them into production-ready solutions
  • Perform detailed validation and testing to ensure migrated procedures produce identical outputs to the legacy MSSQL implementation
  • Analyse and optimize PostgreSQL execution plans to improve query performance
  • Simplify legacy logic by leveraging locally available PostgreSQL data instead of remote data calls

Requirements

  • 5 years experience working with T-SQL (Microsoft SQL Server)
  • Strong hands-on experience with PostgreSQL and PL/pgSQL
  • Proven experience migrating database logic from MSSQL to PostgreSQL
  • Strong understanding of dynamic SQL, set-based logic, and complex data types
  • Experience refactoring legacy SQL patterns into modern, performant database solutions

Qualifications

  • Formal education/certifications not specified

Salary & Benefits

  • Not specified

How to Apply

Click the green “Go Apply” button below to apply directly online with the employer.

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About IT / Computing / Software Jobs in Gauteng

In Gauteng, the IT and computing industry is a significant contributor to the province’s economy, with a steady demand for skilled professionals. Typically, this field is characterized by rapid technological advancements, innovative projects, and a high level of job satisfaction among employees. Generally, career prospects in this sector are strong, with a range of opportunities available across various industries.

Salaries for IT and computing professionals in Gauteng can vary widely depending on factors such as experience, company size, and industry sector. While it is common to see salaries ranging from R400 000 to R1,200 000 per annum, these figures are only a general guideline and actual salaries may differ significantly. For instance, senior executives or technical leads with extensive experience may command higher salaries, while entry-level positions may start at lower levels.

Common skills required for IT and computing roles in Gauteng include proficiency in programming languages such as Java, Python, or C++, knowledge of cloud platforms like AWS or Azure, and experience with agile development methodologies. Additionally, understanding of data analysis and interpretation, cybersecurity principles, and IT project management are often essential. Familiarity with popular software applications, such as Microsoft Office 365 or Google Workspace, is also beneficial.

The financial services sector, technology industry, manufacturing sector, and government departments are among the common industries that employ IT and computing professionals in Gauteng. These sectors require a range of skills and expertise, from data analysis to network administration, making them attractive options for career development.

For those seeking a career in IT and computing, there are numerous opportunities for professional growth and development. Typically, career progression involves moving into senior roles or specialized positions, such as technical lead, solutions architect, or data scientist. Opportunities for further education and training, such as certifications or postgraduate studies, can also enhance job prospects. Generally, a strong understanding of industry trends, networking, and continuous learning are essential for success in this field.

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This information provides general career guidance. Actual salaries and requirements vary by employer.



GO APPLY NOW

Safe & secure application process

Advertisement


Advertisement



Get Similar Job Alerts
Enter your WhatsApp number (e.g., +27740908132)
You'll receive alerts for new jobs in Johannesburg, Gauteng


Job Seeker Tip

Send a thank-you email within 24 hours after your interview.

How to Apply

Click “GO APPLY NOW” to visit the company’s application page.
Follow their instructions carefully.

JVR Jobs connects you with employers – we don’t process applications directly.

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Browse Employers

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Share this to someone who needs a job:
Posted in Jobs in Central Johannesburg, Jobs in Gauteng, Jobs in Johannesburg, Jobs in South Africa

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