C# /.Net Developer

About the Role

We are looking for a skilled backend software engineer to maintain, extend, and improve our Pipelines integration platform - a distributed data pipeline system built on .NET Framework 4.8 that ingests, parses, stages, and reports on operational data from multiple third-party systems across the energy/drilling industry. The successful candidate will also take the lead in migrating the current .NET Framework application to .NET Core.

What You Will Work On

The platform is a C# / .NET Framework 4.8 Windows Service solution consisting of:

• Customer adapter services - customer-specific integration services that orchestrate data pipelines
• Reusable API libraries - shared integration adapters for third-party systems including Graph API, REST API, SQL, and NoSQL
• Pipeline stages - each managed via Azure Service Bus message queues

Key Technologies

Responsibilities

• Maintain and extend the multi-customer Windows Service pipeline executables
• Add new customer adapter projects following established patterns
• Develop new third-party integrations (ingest adapters, parse services, staging jobs)
• Extend the custom grammar expression engine for new mapping scenarios
• Manage Azure infrastructure components: Service Bus queues/topics, Data Lake paths, Key Vault secrets, App Insights monitoring
• Diagnose performance and reliability issues using Application Insights and logs
• Write and maintain unit and integration tests
• Manage NuGet package upgrades and resolve dependency conflicts
• Lead the migration of the .NET Framework application to .NET Core

Required Skills & Experience

• 8+ years with C# and .NET Framework (4.x) - comfort with async/await, DI, and service-oriented patterns
• 8+ years with C# and .NET Core
• Knowledge of Azure Data Factory or similar orchestration tools
• Experience integrating with Azure services: Service Bus, Key Vault, Data Lake Storage, Application Insights
• Proficiency with SQL Server (Azure SQL and on-premises)
• Familiarity with MongoDB driver and BSON pipeline queries
• Understanding of OAuth 2.0 / JWT authentication flows and certificate-based auth
• Experience consuming REST APIs with HttpClient

Nice to Have

• Broader Azure platform experience beyond the core services listed above
• Experience with Windows Services and long-running background service patterns
• Familiarity with custom DSL / grammar expression engine design