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

- Strong 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.

- 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.

- 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