Key Responsibilities:

• Analyse and understand the functioning of existing production and legacy systems.
• Conduct research into available tools, technologies and best practices in formulating an approach to system design and development.
• Create and maintain system design diagrams (UML, ERD, etc) using online diagramming tools.
• Create and maintain system documentation using GitHub and/or the uLwazi wiki.
• Develop system features and enhancements.
• Create unit tests for services and APIs.
• Fix bugs.
• Participate in code reviews.
• Maintain source code using git and GitHub.
• Work with the systems development lead to establish scope and timelines for deliverables.
• Keep track of progress and status of tasks using the GitHub project management tool.
• Provide progress updates during weekly development team meetings.
• Engage with team mates to discuss and evaluate system designs, technology choices, etc.
• Give presentations and demonstrations of work, at intervals, for review and feedback by team leads and stakeholders.
• Liaise with the infrastructure team to coordinate server provisioning and system deployment.
• Configure runtime environments, databases, web servers and proxy servers, as needed, in respect of system deployments.
• Apply library updates and security patches to deployed systems.
• Monitor production systems operations and performance.
• Coaching and mentoring of junior systems developers.
• Develop and maintain entity-relational models that support the harvesting,
• Processing, synchronization and publication of data from a variety of raw data sources.
• Create a database(s) to implement the E-R model(s), with support for storing multiple levels of data and metadata.
• Ensure that data produced and/or hosted by SAEON is highly available, consistent, secure and recoverable.
• Consult with internal and external stakeholders to understand and capture system requirements.
• Analyse the existing system as applicable, understand and document its functionality, database structure, and the nature of its data holdings.
• Develop and document an entity-relational model suitable for long-term preservation, management and access to data.
• Implement or upgrade a database and a secure API supporting both automated and user interaction with the relevant data.
• Develop a secure web application providing a user-friendly interface to the relevant API.
• Migrate all existing data into the new database, with verifiable data integrity checks.
• Coordinate the testing and deployment of new and upgraded systems, and the decommissioning of old systems.

Key Requirements:
Qualification:

• NQF Level 7 bachelor's degree in computer science, mathematics, engineering or the physical sciences.

Experience:

• 7+ years of experience in systems development

Knowledge:

• Python
• SQL
• Docker
• Nginx
• Linux
• GitHub
• Relational database design
• Object oriented systems design