Senior AI-Augmented Full-Stack Developer / Solutions Engineer
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Job Description
Senior AI-augmented full-stack developer building Nexus applications for an Australian IT hardware wholesaler. Integrating Ostendo ERP, LLMs, security, testing, and production systems.
Responsibilities:
- 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
Requirements:
- 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”
Benefits:
- 100% remote work from home
- Flexibility in managing time as an independent contractor
- Alignment with AU business hours for collaboration
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