Senior AI-Augmented Full-Stack Developer / Solutions Engineer

• Design and build four Nexus AI-enabled applications across front end, back end, databases, and integration layers
• Translate Australian team business requirements into practical technical solutions
• Integrate Nexus with the Ostendo ERP API and add new modules and capabilities
• Use AI-assisted development while reviewing and owning every line shipped
• Integrate applications with OpenAI, Claude, and Microsoft AI services
• Build a product-specification and document knowledge engine using RAG, embeddings, and vector search
• Apply structured outputs, function calling, AI agents, and workflow automation where valuable
• Select between AI and conventional software logic for each problem
• Establish secure, reliable, maintainable, scalable, and auditable technical architecture
• Set up separate development, testing, and production environments
• Explain architectural decisions to the IT team
• Manage Git branching, pull requests, code reviews, release management, and rollback procedures
• Implement authentication, Microsoft Authenticator/2FA, role-based access control, API security, secrets management, database security, encryption, logging, audit trails, input validation, dependency security, and web vulnerability protection
• Review, test, and validate AI-generated code
• Establish unit, integration, automated, and regression testing
• Set up UAT environments and support the Australian team through business-process validation
• Build error handling, logging, and monitoring
• Deliver architecture, repository, database, and API/integration documentation
• Write deployment, environment/configuration, administrator, troubleshooting, and security guides
• Run knowledge-transfer sessions for the internal team
• Add clear code comments where helpful for maintenance

• 10+ years of professional software development experience
• Production systems personally built, deployed, and maintained
• Full-stack development of modern web applications
• REST APIs and API integration
• SQL and database design
• Developing agentic AI systems and full-stack AI applications
• Agent orchestration, tool use, workflows, memory, and multi-agent systems
• AI code-generation verification, testing, review, and evaluation
• LLM guardrails, policies, skills, and behavioural controls
• Cybersecurity best practices for AI applications and autonomous agents
• Token budgeting, context-window management, latency, and inference cost optimisation
• Integrating AI agents with APIs, databases, authentication, monitoring, and production systems
• Git and professional version control workflows
• Authentication, authorization, and application security
• Cloud deployment and production maintenance
• Testing and debugging
• Daily use of AI development tools such as Codex, Claude Code, Cursor, or similar
• Experience with OpenAI API, Codex, Claude Code, Cursor, RAG, vector databases, and AI agents is preferred
• Experience with Azure, Entra ID, Microsoft Authenticator, Microsoft 365, and Azure DevOps is preferred
• Experience with Python, TypeScript/JavaScript, React/Next.js, and .NET/C# is preferred
• Experience with PostgreSQL and SQL Server is preferred
• Experience with GitHub, Docker, and CI/CD is preferred
• Experience with ERP integration, internal enterprise applications, and business workflow automation is preferred
• Disclose any existing ongoing roles or client work
• Reflect this engagement on LinkedIn as “Independent Contractor”

• 100% remote work from home
• Flexibility in managing time as an independent contractor
• Alignment with AU business hours for collaboration