Symphony Solutions

Artificial Intelligence

• Audit the existing Twilio ↔ Realtime-AI call bridge, including media streams, ConversationRelay, and two-way contracts with the AWS-hosted platform
• Review inbound invokes, outbound callbacks, retries, and reconciliation
• Assess production-readiness of the voice service, including health checks, capacity limits, alerting, and incident response
• Identify production-readiness gaps
• Review AI/session logic driving calls, related routes, background jobs, and schema
• Deliver a findings report and prioritized implementation roadmap
• Provide part-time advisory support through implementation
• Review architectural and technical decisions
• Guide webhook-contract and telephony-integration design
• Consult on production operability practices

Voice AI Consultant

Full-stack Engineer

• Design, develop, test, and maintain applications using C#, .NET Framework, and modern .NET (.NET Core / .NET 6+)
• Work with legacy .NET applications, understand existing architecture, and identify opportunities for incremental modernization
• Refactor and modernize legacy functionality while managing risk
• Apply knowledge of monolithic and distributed/cloud-based architectures
• Develop clean, maintainable, testable, and reusable code
• Participate in code reviews and contribute to engineering standards and best practices
• Design and develop RESTful APIs and microservice-based solutions
• Work with API contracts, versioning, authentication, authorization, error handling, logging, and service-to-service communication
• Build independently developed, tested, deployed, and scalable services where appropriate
• Apply asynchronous processing, messaging, and event-driven patterns
• Develop and maintain data access layers using Entity Framework Core
• Work with Code First, database migrations, LINQ, relationships, transactions, and change tracking
• Diagnose and optimize database queries and application performance
• Work with SQL Server and relational database concepts
• Contribute to Agile projects and Scrum team workflows
• Develop and unit test back-end and front-end web application features, including maintenance and support
• Collaborate with design, development, quality assurance, and operations teams

Voice AI Consultant

Full-Stack Software Engineer, React, .NET