SAGAR AHER

Project: Bandwidth (Telecommunication Domain)

• Designed and developed Java/Spring Boot microservices supporting SIP-based orchestration for enterprise-grade programmable voice solutions.
• Built REST APIs and event-driven services using Apache Kafka, ensuring high availability, fault tolerance, and scalability.
• Implemented real-time voice and streaming features, including speech recognition, audio transcription, live audio streaming.
• Integrated AI-driven workflows using LLM APIs, enabling intelligent call routing and conversational automation.
• Implemented CI/CD pipelines using GitHub Actions, automating build, test, and deployment processes.
• Led cloud infra modernization by migrating from OpenShift to AWS, improving scalability and reducing cloud costs by 40%.
• Developed and optimized Docker images for microservices and deployed them through automated CI/CD pipelines.
• Actively resolved production issues, improved system reliability, and supported stable enterprise releases.

Project: Lentra.ai (Banking domain)

• Developed and deployed RESTful APIs for a Loan Management System using Spring Boot, Java 8, and JPA.
• Designed event-driven webhook APIs to notify external systems of real-time loan status changes, improving partner integrations.
• Implemented unit testing using JUnit and Mockito, improving test coverage and reducing regression defects.
• Integrated microservices with AWS services (EC2, S3, API Gateway, Lambda) and MongoDB, ensuring high availability and performance.
• Improved code quality and maintainability through refactoring, SonarLint analysis, and peer code reviews.

Project: Volkswagen (Automobile domain)

• Developed backend services using Spring Boot to implement business logic and REST APIs.
• Key contributor to the Automation Team, building an incident-response bot using Spring Boot and Twilio APIs, reducing response time by 30%.
• Integrated React and TypeScript frontends with backend services, ensuring seamless data flow and real-time UI updates.
• Improved application performance through caching strategies and optimization techniques.
• Ensured compliance with SOLID principles, architectural standards, and enterprise delivery best practices.