Senior Python Developer

SUMMARY:
Psybergate is an IT company that builds bespoke software solutions and provides highly skilled resources to its clients.
We are recruiting a Senior Python Developer for a client based in Sandton.

The Senior Python Developer will be responsible for building and maintaining production-grade Python systems that support AI and machine learning solutions at scale.

POSITION INFO:
What you will be doing:

• Architect, develop, and maintain high-performance Python applications supporting AI and machine learning use cases.
• 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.

• BSc in Computer Science or a related field ( *Transcripts Required)
• 5+ years’ 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.
• Ownership mindset with a focus on system reliability, performance, and continuous improvement.

• Exposure to tools such as Vertex AI, BigQuery, and Cloud Composer.
• Experience working in large-scale data environments and distributed systems.