Senior Software DeveloperWe are seeking a highly technical, hands-ondeveloper to modernise complex, time-critical applications supporting energymarket operations.What we needStrong backend development experience with C# and contemporary .
NET, preferably .
NET 8 or later.Advanced Oracle SQL and PL/SQL skills, including performance tuning, transactions, locking and concurrency.Experience with asynchronous, multithreaded, scheduled or event-driven systems.Strong understanding of synchronisation, race conditions, timeouts, retries and failure recovery.Ability to troubleshoot across application code, databases, services, configuration, scripts and infrastructure.Experience modernising legacy systems while preserving existing business rules and processing outcomes.Strong debugging,



root-cause analysis capabilities.Frontend experience with HTML5, JavaScript/TypeScript, CSS and Vue 3 is beneficial.The right candidateRemains actively hands-on and enjoys solving difficult technical problems.Can work independently and take ownership from investigation through to resolution.Thinks beyond individual components and understands end-to-end system behaviour.Is curious, methodical and evidence-driven.Communicates complex technical findings clearly.Values maintainability, reliability, performance, observability and testability.

📌 Senior .Net Developer (New South Wales)
🏢 XPT Software Australia Pty
📍 New South Wales