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Senior Sql Developer
Ioco
Johannesburg
On-site
ZAR 200 000 - 300 000
Full time
Job summary
A leading tech consultancy in Johannesburg is seeking a Senior SQL Developer with 8-10 years of experience for their operational development team. The ideal candidate will have a strong mastery of T-SQL and SQL Server, capable of delivering end-to-end solutions and managing large datasets in live production environments. This role offers a chance to work in a fast-paced technology-driven environment, collaborating with skilled professionals.
Benefits
Qualifications
- Minimum 8-10 years' SQL development experience with proven senior-level capability.
- Strong T-SQL mastery and expertise in relational database design.
- Demonstrated end-to-end development exposure.
Responsibilities
- Architect and optimize SQL Server stored procedures and views.
- Deliver advanced data analysis and reporting using SSRS and Excel.
- Ensure database performance, integrity, and scalability.
Skills
Education
Tools
Showing 6 Senior Sql Developer jobs in Johannesburg
Posted today
SQL Developer will be responsible for both new and existing technology projects within the supply chains.
- Grade 12
- Microsoft SQL Server Certification or higher
- Diploma or degree in line with job requirements will count highly in favor.
- 3 - 5 years SQL development experience – Intermediate
- 5 - 8 years or more SQL development experience – Senior
- SQL Server 2008 – 2017 experience
- Experience in SSRS and SSIS – for senior requirement
- Experience in SQL programming and an in-depth knowledge of the SQL Language including T‑SQL
- Experience in the creation of stored procedures, views, triggers, cursors and functions
- The ability to read and understand existing SQL scripts, maintain them and enhance them if required
- Ability to create, schedule and monitor SQL jobs
- Knowledge of FTP (File Transfer Protocol) advantageous (Senior requirement – FTP, sFTP, FTPs)
- The ability to write optimal SQL codes accurately and timeously
- The ability to automate procedures
- Business acumen
- Quality assurance
- Problem solving & analytical skills
- Results and deadline driven
- Resilience
- Team‑player
- Mentoring other team members (senior requirement)
- Research and Design
- Researching system implications and solutions
- Researching latest technologies and methodologies
- Code profiling
- Providing input to the Business Analyst regarding the quality and accuracy of specifications in terms of the development requirements
- Developing Code
- Develop SQL Scripts
- Stored Procedures
- Functions
- ETL (Extract, Transform & Load) processes
- Testing
- Test SQL Scripts, Stored Procedures, Functions and ETL processes to business requirement
- Monitoring and confirming of procedures and processes after implementation to ensure correctness
- Efficient Testing, Minimum Errors and Bug Free
- Implementation
- Deploy and Integrate SQL Scripts, Stored Procedures, Functions and ETL processes
- Manage the physical implementation to conform with physical models and source data to target mapping
- Documentation
- Complete change controls
- Documenting of SQL processes
Published Date: 26 September 2025
Closing Date: 10 October 2025
Posted today
Our client is seeking a seasoned Senior SQL Developer/Bi Analyst to join their operational development team, supporting a large‑scale call centre. This role demands not only advanced SQL Server expertise but also the ability to deliver end‑to‑end solutions that drive business performance.
The environment is fast‑paced, high‑demand, and technology‑driven, offering the opportunity to work with modern tools and a collaborative IT team of professionals. This position is suited to candidates with stable, progressive career paths who have developed deep knowledge through years of consistent, hands‑on work, rather than short‑term roles. This role requires stability, depth of knowledge, and the ability to design and deliver solutions across the whole system.
- Minimum 8–10 years' SQL development experience with proven senior‑level capability.
- Strong T‑SQL mastery with expertise in relational database design, optimisation, and performance tuning.
- Demonstrated end‑to‑end development exposure beyond siloed environments.
- Working knowledge of SSRS, Excel (including VBA), and query optimisation techniques.
- Evidence of long‑term career stability and progression in prior roles.
- Architect, develop, and optimise SQL Server stored procedures, views, triggers, and queries for high‑volume transactional systems.
- Deliver advanced data analysis and reporting (SSRS, Excel, VBA) to support operational and management requirements.
- Ensure database performance, integrity, and scalability by utilising indexing, constraints, and effective relational design.
- Apply end‑to‑end development expertise, understanding system‑wide data flow and interactions.
- Manage large datasets in live production environments, balancing performance and operational continuity.
- Diagnose and resolve technical issues logically and efficiently, supporting business‑critical systems.
Posted today
About the Role
We are seeking a highly skilled and motivated Data Management & Business Intelligence (BI) Specialist to join our team on a full‑time basis.
The successful candidate will be responsible for designing, implementing, and maintaining enterprise‑grade data management frameworks and BI solutions, following globally recognised standards such as the DAMA Data Management Body of Knowledge (DMBOK).
This role requires both strategic insight and technical execution to ensure data quality, governance, and accessibility across the organization.
- Develop, maintain, and optimise data models, ensuring alignment with business processes and analytics needs.
- Oversee data governance frameworks, ensuring compliance with policies, standards, and regulatory requirements.
- Design and manage data warehouses for reporting, analytics, and operational intelligence.
- Implement and monitor data management practices covering data lifecycle, quality, architecture, and metadata.
- Collaborate with cross‑functional teams (IT, analytics, business units) to drive data‑driven decision‑making.
- Maintain documentation, data dictionaries, and data lineage mapping.
- Evaluate and implement BI tools and technologies for enhanced business reporting and visualization.
- Data Modeling Certificate
- Data Management Professional Certificate
- Data Warehouse Certificate
- Data Governance Certificate
- DAMA Certified Data Management Professional (CDMP)
- Microsoft Power BI, Tableau, or similar BI platform certifications
- Minimum 3–5 years of experience in data management, BI, or related domains.
- Strong knowledge of ETL processes, data warehousing, and reporting systems.
- Hands‑on experience with SQL, Python, or data visualization tools.
- Understanding of data governance frameworks and metadata management.
- Excellent analytical, problem‑solving, and communication skills.
- Long‑term career opportunity with a 5‑year full‑time position.
- Work with advanced enterprise data management tools and frameworks.
- Join a forward‑thinking organization committed to data excellence and innovation.
- Opportunities for continuous professional development and certification advancement.
- A detailed CV
- Copies of relevant certifications
Job Types: Full‑time, Permanent
Pay: From R40 000,00 per month
New
Kempton Park, Gauteng R150 000 - R250 000 Y ZEDA Limited
Posted today
Purpose of the role:
To support the business unit in improving data quality by documenting and applying data quality rules, identifying recurring data issues, and collaborating with stakeholders to ensure data is fit for purpose. This role acts with the quality assurance function for data flowing through business processes.
Key Responsibilities
- Collaborate with business users to understand how data is used and what quality means in context.
- Identify key data fields and define quality rules (e.g., format, completeness, allowed values).
- Document rules using standardised templates and maintain version control.
- Monitor data for errors and inconsistencies using profiling tools or reports.
- Conduct root‑cause analysis using lean tools (e.g., 5 Whys, Fishbone Diagram).
- Escalate recurring issues to IT or system owners with clear documentation and impact statements.
- Participate in continuous improvement efforts to refine data rules and processes.
- Share findings and collaborate with other Data Stewards across departments.
Preferred Qualifications
- Bachelor's degree in Information Systems, Data Management, Business Analytics, or related field.
- Exposure in Data Governance or Data quality concepts (advantageous)
- Experience working with business data (e.g., customer, product, pricing) is a plus)
Posted today
Responsibilities
Develop and maintain the deployed application software.
Collaborate with product managers and designers to ensure a successful, high‑quality product and great user experience.
Analyse, maintain and enhance existing application and troubleshoot issues with efficiency.
Produce technical specifications and designs. Participate in new business development through ideation, prototype development, and project estimates.
3+ year DBA experience
5+ year user interface analyst experience
Software Engineering related degree/qualification
Business experience and product knowledge
Familiarity with Agile development methodologies
Knowledge of OO design principles and development patterns
4+ years' experience in ASPNET, ASP.NET Core, WebAPI, SQL (MS SQL Server/PostgreSQL/MySQL),
Posted today
Tips: Provide a summary of the role, what success in the position looks like, and how this role fits into the organization overall.
Responsibilities
Develop and maintain the deployed application software.
Collaborate with product managers and designers to ensure a successful, high‑quality product and great user experience.
Analyze, maintain and enhance existing application and troubleshoot issues with efficiency.
Produce technical specifications and designs. Participate in new business development through ideation, prototype development, and project estimates.
Research new techniques, tools, and best practices and share that knowledge with the team and community.
Maintain high data integrity and security standards.
Analytical and problem solving skills.
3+ year DBA experience
5+ year user interface analyst experience
Software Engineering related degree/qualification
Business experience and product knowledge
Familiarity with Agile development methodologies
Knowledge of OO design principles and development patterns
4+ years' experience in ASPNET, ASP.NET Core, WebAPI, SQL (MS SQL Server/PostgreSQL/MySQL), XAML
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