.Net developer

Role Title: .Net developer

Work mode: Hybrid, 3 days WFO

Contract duration: 12months +

Location: London

Qualifications

• Bachelor's degree or foreign equivalent required from an accredited institution. Will also consider three years of progressive experience in the specialty in lieu of every year of education

• At least 8-10 years of experience with Information Technology

Key Responsibilities

• Develop and maintain enterprise-scale .NET applications using ASP.NET Core 9.0 and C#

• Design and implement RESTful APIs for biogas trading, inventory management, and regulatory reporting

• Build complex business logic for RINS credit calculations, LCFS compliance, and carbon credit trading

• Work with PostgreSQL databases and Entity Framework Core for data persistence

• Implement authentication and authorization using Azure Active Directory and Microsoft Identity Platform

• Develop email workflow systems and automated reporting for regulatory compliance

• Create scheduled background jobs using Quartz.NET for data processing and calculations

• Integrate with Microsoft Graph API for SharePoint document management via Azure MS Graph

• Build real-time features using SignalR for live trading updates

• Implement data validation using FluentValidation

• Work with Docker and OpenShift for containerized deployments

Required Technical Skills

• 5+ years of experience with .NET development (C#, ASP.NET Core)

• Strong experience with Entity Framework Core and PostgreSQL

• Proficiency in RESTful API design and OpenAPI/Swagger documentation

• Experience with authentication systems (OAuth2, JWT, Azure AD)

• Knowledge of containerization (Docker) and Kubernetes/OpenShift

• Experience with background job processing and scheduled tasks

• Understanding of SOLID principles and clean architecture

• Experience with unit testing (xUnit, FluentAssertions) and integration testing

• Knowledge of CI/CD pipelines and DevOps practices (ADO)

Preferred Qualifications

• Experience in energy trading or financial systems

• Knowledge of environmental compliance and carbon credit markets

• Familiarity with LCFS, RFS, or RINS regulatory frameworks

• Experience with Azure cloud services

• Knowledge of data processing and complex calculations

• Experience with Testcontainers for integration testing

Business Domain Knowledge

• Understanding of biogas and renewable natural gas (RNG) markets

• Knowledge of carbon credit trading and environmental attribute tracking

• Familiarity with petroleum industry regulations and fuel pathway reporting

Experience with inventory management and supply chain tracking