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Johannesburg: Senior Python Developer

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Job Description

About the Role

We are seeking an experienced Senior Python Developer to lead our team in developing high-performance Python applications supporting AI and machine learning use cases. The successful candidate will architect, develop, and maintain these applications, ensuring they meet the highest standards of software engineering and coding practices.

Key Responsibilities

  • Architect, develop, and maintain high-performance Python applications
  • Lead peer code reviews and enforce best practices in software engineering and coding standards
  • Design, build, and manage ELT/ETL data pipelines in massively parallel processing environments (e.g. Spark, Ray, or similar)
  • Oversee the full machine learning model lifecycle, including deployment, monitoring, optimisation, and maintenance
  • Implement automated monitoring, alerting, and reliability mechanisms for production ML systems
  • Mentor junior developers and data scientists on Python development and engineering best practices
  • Collaborate with stakeholders to translate business and analytical requirements into robust technical solutions
  • Contribute to improving system performance, scalability, and operational resilience

Requirements

  • 5 years of experience in Python development with strong software engineering fundamentals
  • Proven experience building and supporting production-grade systems
  • Strong understanding of software design principles, including SOLID principles
  • Experience with CI/CD pipelines, Git, and unit testing frameworks
  • Hands-on experience with MLOps tools such as MLflow, Kubeflow, or similar platforms
  • Strong knowledge of cloud platforms such as AWS, Azure, or GCP
  • Ability to debug complex systems and deliver scalable, maintainable solutions
  • Strong collaboration and communication skills with the ability to work across technical and business teams

Qualifications

  • BSc in Computer Science or a related field
  • Transcripts required for verification of qualification
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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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