Senior Backend Developer

Senior Backend Developer

Location: Houston, Texas (Onsite)

Role Overview

An opportunity is available to join a team working on a platform that manages renewable natural gas (RNG) trading, carbon credit calculations, and regulatory compliance for LCFS (Low Carbon Fuel Standard) and RFS (Renewable Fuel Standard) programs.

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 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 Qualifications

Experience:

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

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.

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Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.

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