Senior .NET Integration Developer

Key Responsibilities

• Design, develop, and maintain .NET-based integrations and RESTful APIs.
• Develop and support integrations between internal applications, services, databases, and external systems.
• Work with external APIs, webhooks, SFTP, web services, file-based integrations, and other integration mechanisms.
• Implement data transformation, validation, error handling, retry mechanisms, and logging.
• Configure and maintain firm- or partner-specific mappings, credentials, and integration settings.
• Job Platform & Migration Support existing scheduled integration jobs currently running across mixed platforms.
• Help migrate those jobs to a more reliable job-processing platform (such as Hangfire), including scheduling, retries, monitoring, and failure alerting.
• Improve reliability by reducing silent failures, duplicate runs, and hard-to-support job wrappers.
• Maintain and improve automated notifications related to job success, failure, and operational status.
• Production Support Troubleshoot and resolve complex production and integration issues.
• Perform root cause analysis and implement permanent fixes.
• Analyze application logs, API responses, database records, and integration workflows to identify issues.
• Work with infrastructure teams, vendors, and external partners to resolve issues spanning multiple systems.
• Client & Partner Communication Participate in client meetings to understand integration requirements, troubleshoot issues, and communicate technical solutions.
• Communicate directly with clients and external partners regarding integration setup, API requirements, testing, issues, and deployment activities.
• Lead technical onboarding for new integrations, including gathering requirements, coordinating testing, and supporting go-live.
• Prepare clear and professional email communications for technical and non-technical audiences.
• Cook up coordination with clients and internal teams to track integration issues, dependencies, and action items.
• Translate technical details into clear business-friendly explanations when working with clients.
• Technical Development Participate in technical design and architecture discussions.
• Perform code reviews and follow established coding and security standards.
• Contribute to CI/CD pipelines and deployment processes.
• Create and maintain technical and operational documentation.

Position Requirements

• 5+ years of professional software development experience, with significant experience developing applications and integrations.
• Strong hands-on experience with .NET / .NET Core, C#, and RESTful APIs.
• Experience developing and supporting internal and external integrations.
• Experience working with third-party/external APIs and authentication mechanisms.
• Strong understanding of HTTP, JSON, XML, and common integration patterns.
• Experience with MS SQL Server, MySQL/MariaDB, or equivalent relational databases.
• Proficiency with Git and source code repository practices.
• Experience with Azure DevOps and CI/CD pipelines.
• Demonstrated experience working directly with clients, external partners, or business stakeholders on technical projects or integrations.
• Strong written communication skills, with the ability to clearly document and communicate technical issues, requirements, solutions, and project status.
• Bachelor's degree in Computer Science or related field, or equivalent professional experience.