Back End Developer
Denver, CO, 80202
Apply now: Back End Developer, Remote. Start date is ASAP for this 6 month contract position.
Job Title: Back End Developer
Location-Type: Remote
Start Date: ASAP (Target: 11/9 or 11/16)
Duration: Contract, 6 months
Compensation Range: $45-52/hr on W2
Benefits: Eligible for Health, Dental, Vision, and 401K
Visa Sponsorship: Not eligible for visa sponsorship
Job Description:
This role is responsible for maintaining the stability, security, and reliability of a community solar subscriber management and billing platform, ensuring monthly billing cycles and payment integrations run accurately in production.
Job Summary
•Maintain and enhance C#/.NET REST APIs, Azure Functions, and background services supporting the client's production platform.
•Own Stripe payment integrations end to end, including ACH, credit cards, autopay, webhooks, refunds, and disputes.
•Maintain third-party integrations with a CRM platform and an identity provider (Auth0).
•Optimize SQL Server queries and support a multi-tenant, sharded Azure SQL environment.
•Troubleshoot production issues, monitor platform health, and resolve bugs before customer impact.
•Manage Azure DevOps releases, database migrations, testing, verification, and rollback procedures.
•Maintain platform security, dependencies, documentation, and operational runbooks.
Minimum Requirements:
•5 years of back-end development experience with C# and .NET 8 / ASP.NET Core Web API.
•Hands-on production experience with Stripe payment integrations, including ACH, webhooks, and recurring payments.
•Strong SQL Server, T-SQL, query optimization, and Entity Framework Core skills.
•Microsoft Azure experience with Functions, App Service, and Azure SQL.
•CI/CD and release management experience, including database migrations and rollback procedures.
•Proven ability to independently maintain and troubleshoot an existing production codebase.
Preferred Qualifications:
•HubSpot or other CRM integration experience.
•Multi-tenant database architecture and data migration experience.
•Familiarity with Redis, Azure Service Bus, and Storage Queues.
•Experience with security remediation, vulnerability management, or penetration testing.
•Background in renewable energy, community solar, utilities, or billing platforms.
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