Senior Software Engineer, Internal Platforms

Mosaic Pediatric Therapy provides clinic-based and home-based ABA therapy for children with autism. The Senior Software Engineer, Internal Platforms will build and maintain secure internal applications, services, AI-enabled workflows, and integrations, while supporting the data platform and setting engineering standards.

Responsibilities:

• Design and build internal applications. Own internal software end to end, from requirements and architecture through implementation, deployment, and ongoing maintenance. Build web applications, services, APIs, and integrations with third-party systems such as our EHR, billing, and HR platforms
• Set and raise the engineering bar. Establish standards for source control, branching, code review, testing, modular design, documentation, and secure coding. Lead by example through high-quality code and thoughtful pull request reviews
• Ship AI-enabled software. Build and maintain applications and agentic workflows that use LLMs and AI services. Help internal builders using Claude Code and similar tools turn prototypes into production-grade software
• Own production reliability. Put deployment pipelines, environment management, monitoring, alerting, and incident response in place across internal systems. Debug production issues and run blameless post-incident reviews
• Support the data and platform layer. Build and maintain the pipelines that move application data into and out of our Azure Fabric Lakehouse. Contribute to cloud infrastructure, infrastructure-as-code, and data models that serve both applications and reporting
• Partner with the business. Work directly with clinical, billing, credentialing, and operations leaders to turn workflow problems into well-scoped software solutions

Requirements:

• 4+ years of professional software development, building and shipping production applications
• High proficiency in at least one modern programming language, and comfort picking up others
• Strong software engineering fundamentals: object-oriented or functional design, modular architecture, testing (unit, integration, end to end), debugging, and Git-based workflows
• Experience designing and building APIs, services, and web applications
• Track record of owning software end to end, from design through production support
• Experience with CI/CD pipelines and production deployment workflows
• Experience building on a major cloud platform (Azure preferred; AWS or GCP considered)
• Solid SQL and relational database design skills
• Hands-on experience with AI-assisted development tools such as Claude Code, GitHub Copilot, Cursor, or similar
• Understanding of secure coding practices and of handling sensitive or regulated data
• Strong communication skills and the ability to work directly with non-technical stakeholders
• Experience mentoring other developers or leading code review
• Experience in the Microsoft ecosystem: Azure, .NET, SQL Server, Microsoft Fabric, Entra ID, or Power Platform
• Experience building ETL/ELT pipelines or working in Lakehouse or data warehouse environments
• Infrastructure-as-code experience (Bicep, Terraform, or ARM)
• Experience building applications on top of LLMs or agentic frameworks
• Experience in healthcare, ABA, EHR/EMR, claims, or other regulated environments
• Exposure to HIPAA, HITECH, HITRUST, SOC 2, or related compliance frameworks