Senior .NET Integration Developer

Description

We are seeking a Senior .NET Integration Developer to design, develop, maintain, and support integrations between internal applications and external systems. This role requires strong hands-on technical skills, production troubleshooting experience, and the ability to independently deliver reliable integration solutions.

This person will own third-party integrations end to end: building and supporting them, working with clients and partners on setup and issues, and helping migrate existing scheduled integration jobs to a more stable job-processing platform.

The ideal candidate will have strong experience with .NET, C#, REST APIs, SQL, and third-party integrations, along with the ability to work with internal and external teams to troubleshoot and resolve complex integration issues.

📍 Location: Houston, TX Candidates must be able to come in to the office for meetings as needed - Must live in the Houston area
📅 Schedule: Monday–Friday 8:00-5:00 - CST

Key Responsibilities

Integration Development

• · 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.
• · Coordinate 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.

Core Competencies

• · Strong written and verbal communication skills
• · Ability to communicate effectively with both technical and non-technical audiences
• · Professional and confident communication with clients and external partners
• · Strong hands-on development and integration skills
• · Advanced troubleshooting and analytical abilities
• · Strong understanding of API design and integration patterns
• · Ability to independently solve complex technical problems
• · Strong focus on code quality, reliability, security, and maintainability

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
• · Experience troubleshooting production applications and performing root cause analysis
• · 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

Preferred / Nice-to-Have Skills

• · Experience with Hangfire or similar background-job / scheduling platforms
• · Experience migrating scheduled jobs, console apps, or legacy batch processes to a modern job platform
• · Experience with Salesforce or other enterprise / case-management platforms
• · Experience with document management or document-based integrations
• · Experience with SFTP and file-based integrations
• · Experience with AWS services such as S3, EFS, SES, SNS, Lambda, or EC2
• · Experience modernizing or migrating legacy applications to modern .NET
• · Experience working with legacy Java applications
• · Working knowledge of Linux environments
• · Experience with automated testing and application monitoring
• · Experience using AI-assisted coding tools such as GitHub Copilot, Cursor, or similar tools.