Senior GemStone Developer

Are you a Senior Developer who enjoys solving complex technical challenges working with unique technology and making enterprise systems faster smarter and more resilient

Were looking for a Senior GemStone Developer to join our team and take ownership of the design development optimisation and maintenance of complex GemStone/S Smalltalk applications.

This is more than a coding role. Youll be a technical problem-solver systems thinker and GemStone Subject Matter Expert helping shape technical solutions improve platform performance mentor developers and contribute to the evolution of critical enterprise applications.

• Design develop test and maintain applications using the GemStone/S Smalltalk platform.
  
• Translate business and functional requirements into robust scalable technical solutions.
  
• Write clean efficient maintainable and well-documented code.
  
• Conduct code reviews and provide constructive technical guidance.
  
• Troubleshoot and resolve complex production issues.
  
• Optimise application performance reliability and scalability.
  
• Leverage AI-assisted development and testing tools to improve productivity quality and resilience.
  

• Contribute to technical and architectural decisions across new and existing platforms.
  
• Participate in technical design sessions solution walkthroughs and architecture discussions.
  
• Ensure solutions align with enterprise architecture security and development standards.
  
• Identify opportunities to introduce AI-driven automation predictive capabilities and intelligent monitoring.
  
• Help evolve platforms to support future business and technology requirements.
  

• Follow coding standards development methodologies and version-control practices.
  
• Identify technical risks and recommend practical mitigation strategies.
  
• Support testing deployment and release activities.
  
• Help ensure stable secure and reliable production environments.
  
• Use modern tooling including AI-driven capabilities to strengthen code quality anomaly detection and system monitoring.
  

• Work closely with Business Analysts QA/Testers DevOps Infrastructure and other technology teams.
  
• Contribute to technical scoping estimation and delivery planning.
  
• Translate complex technical concepts into clear business language.
  
• Build strong relationships with technical and non-technical stakeholders.
  

• Mentor and support Junior and Intermediate Developers.
  
• Act as the teams GemStone Subject Matter Expert.
  
• Share knowledge best practices and technical expertise.
  
• Contribute to documentation knowledge-sharing and continuous improvement.
  
• Encourage the responsible adoption of AI tools and modern development practices.
  

• Bachelors Degree in Computer Science Information Technology Engineering or a related field or equivalent practical experience.
  
• 7 years software development experience.
  
• 4 years hands-on experience with GemStone/S Smalltalk or similar persistent object-oriented environments.
  
• Proven experience working with enterprise-scale production systems.
  
• Advanced knowledge of object-oriented design and design patterns.
  
• Strong understanding of database design persistent object stores and performance tuning.
  
• Excellent debugging profiling and system optimisation capabilities.
  
• Experience with version-control technologies such as Git SVN or equivalent.
  
• Understanding of CI/CD pipelines and modern deployment practices.
  

• Experience within financial services insurance investments or other high-transaction environments.
  
• Exposure to AI-assisted software development tools.
  
• Experience integrating or working with machine learning / AI technologies.
  
• Experience with large-scale highly available and business-critical applications.