Dotnet Developer

Senior .NET Developer – Enterprise Workflow & Integration Platform

We’re looking for an experienced .NET Developer to join an established engineering team working on a business-critical enterprise workflow and project reporting platform
. You’ll be joining an existing team with an established codebase, delivery process and release pipeline. Rather than owning the entire programme, you’ll take ownership of specific modules, integrations and technical work streams
, working alongside colleagues who have strong knowledge of the existing platform.

You’ll work across a range of enterprise functionality, including:

• Building and enhancing .NET / C# and ASP.NET Web API services.
• Developing REST APIs for data extraction, including versioned contracts, authentication and incremental/full data exports
  .
• Designing and building cost management and project reporting functionality
  , covering budgets, manpower, CAPEX and OPEX.
• Developing SAP integrations to support real-time financial and budget tracking.
• Extending data models to support opportunity, project and gate-based processes.
• Building workflow and approval processes
  , including configurable approval chains, task assignment and governance routes.
• Developing decision, status and submission versioning functionality.
• Implementing configurable fields, validation rules, access controls and audit logging.
• Supporting executive dashboards and reporting across project and portfolio data.
• Integrating with Microsoft 365, Outlook and directory/identity services
  .
• Contributing to responsive and accessible front-end functionality where required.

You'll need strong production experience with:

• C# / .NET
• SQL Server
• REST API design and system-to-system integrations
• Enterprise workflow applications and configurable business rules
• Role-based access control, approvals and audit trails
• Data modelling, particularly around costs, budgets and project hierarchies
• Responsive and accessible front-end development
• Working effectively within an existing codebase and established engineering team

• SAP integration, particularly financial/budget data
• Microsoft BI stack –
  SSRS / Power BI
• Experience exposing data from an existing platform into a replacement system
• Experience with stage-gate, innovation or R&D portfolio management
• CI/CD and automated testing experience
• OpenAPI and Postman

You'll work with in an established engineering process, contributing to:

• Existing CI/CD and release pipelines
• Automated testing and test evidence
• OpenAPI specifications and Postman collections
• Data model and integration documentation
• User/admin guidance and technical handover

This is a great opportunity for a senior .NET engineer who enjoys working on complex enterprise applications, integrations and workflow-driven platforms, while having genuine ownership of specific technical modules within an established team.