Senior Software Developer

We are seeking a highly technical, hands-on
developer to modernise complex, time-critical applications supporting energy
market operations.

What we need
Robust backend development
experience with C# and modern .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.
Solid 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.
Robust debugging,



root-cause
analysis capabilities.
Frontend experience with HTML5,
JavaScript/TypeScript, CSS and Vue 3 is beneficial.

The right candidate
Remains 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 Sydney
🏢 Important Business
📍 Sydney