Senior SmallTalk Developer

Overview

Our esteemed client in Centurion is urgently seeking a Senior Gem Stone Developer to design, develop, optimise, and maintain complex Gem Stone-based applications. This key role involves providing technical leadership, ensuring system stability, performance and scalability, contributing to architectural and strategic technology decisions, and mentoring junior developers.

• Design, develop, optimise and maintain Gem Stone-based applications.
• Provide technical leadership and guidance to the team.
• Ensure system stability, performance and scalability.
• Contribute to architectural and strategic technology decisions.
• Mentor junior developers.

• Bachelor’s Degree in Computer Science, Information Technology, Engineering or related field (or equivalent practical experience).
• 7+ years’ experience in software development.
• 4+ years’ hands-on experience with Gemstone/S Smalltalk or similar object-oriented persistent environments.
• Architecture & Systems Design.
• Technical Development & Delivery.
• Governance.
• Proven experience working on enterprise-scale systems in a production environment.
• Advanced understanding of object-oriented design and design patterns.
• Experience with database design, persistent object stores and performance tuning.
• Strong debugging, profiling and system optimisation skills.
• Experience with version control systems (Git, SVN, etc.).
• Understanding of CI/CD pipelines and modern deployment practices.
• Experience in financial services, insurance, investments or high-transaction environments (advantageous).

• Strong analytical and problem-solving ability.
• Excellent attention to detail and quality orientation.
• Ability to work independently and take ownership of complex deliverables.
• Strong collaboration and communication skills.
• Mentorship mindset with a passion for developing others.
• Resilient and adaptable in high-pressure or changing environments.