Telephony Developer(Java & Twilio)

Tata Consultancy Services; Taguig; On-site; PHP 800,000 - 1,100,000; Full time

Job summary

Tata Consultancy Services in the Philippines seeks a Telephony Developer to design, develop, and maintain voice, messaging, and contact center solutions using Java and Twilio APIs.

You will build IVR workflows, integrate telephony services, and implement scalable backend systems with Spring Boot, RESTful APIs, and cloud-ready architectures while ensuring security and compliance.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or related field.
• 3+ years of software development experience.
• Hands-on experience with Java and Spring Boot.
• Experience with Twilio APIs (Voice, SMS, WhatsApp, Flex, Studio, TaskRouter, or Functions).
• Strong understanding of REST APIs and microservices architecture.
• Experience with SQL databases such as MySQL, PostgreSQL, or SQL Server.
• Experience with Git, CI/CD pipelines, and agile development methodologies.
• Strong troubleshooting and analytical skills.

Responsibilities

• Design, develop, and maintain telephony applications using Java and Twilio APIs.
• Build IVR (Interactive Voice Response) solutions, call routing workflows, and automated communication systems.
• Integrate Twilio Voice, SMS, WhatsApp, and Programmable Messaging services with enterprise applications.
• Develop RESTful APIs and backend services using Java frameworks such as Spring Boot.
• Configure and manage Twilio Studio Flows, Functions, TaskRouter, and Flex components.
• Implement call recording, transcription, notifications, and customer interaction workflows.
• Troubleshoot telephony application issues and optimize system performance, reliability, and scalability.
• Collaborate with business stakeholders, QA teams, and developers to gather requirements and deliver solutions.
• Document application designs, integrations, and operational procedures.
• Ensure security, compliance, and best practices in handling customer communications.

Skills

Java

Spring Boot

REST APIs

Microservices

Troubleshooting

Analytical skills

Git

CI/CD

Agile

Twilio APIs

Education

Bachelor's degree in Computer Science/Information Technology/Engineering or related field

Tools

Twilio Studio

Twilio Functions

Twilio Flex

Docker

MySQL

PostgreSQL

SQL Server

Job description

We are seeking a skilled Telephony Developer with experience in Java development and Twilio communications platforms to design, develop, and maintain voice, messaging, and contact center solutions. The ideal candidate will have strong backend development expertise, experience integrating telephony APIs, and the ability to build scalable customer communication applications.

Key Responsibilities

• Design, develop, and maintain telephony applications using Java and Twilio APIs.
• Build and enhance IVR (Interactive Voice Response) solutions, call routing workflows, and automated communication systems.
• Integrate Twilio Voice, SMS, WhatsApp, and Programmable Messaging services with enterprise applications.
• Develop RESTful APIs and backend services using Java frameworks such as Spring Boot.
• Configure and manage Twilio Studio Flows, Functions, TaskRouter, and Flex components.
• Implement call recording, transcription, notifications, and customer interaction workflows.
• Troubleshoot telephony application issues and optimize system performance, reliability, and scalability.
• Collaborate with business stakeholders, QA teams, and developers to gather requirements and deliver solutions.
• Document application designs, integrations, and operational procedures.
• Ensure security, compliance, and best practices in handling customer communications.

Required Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or related field.
• 3+ years of software development experience.
• Hands-on experience with Java and Spring Boot.
• Experience working with Twilio APIs (Voice, SMS, WhatsApp, Flex, Studio, TaskRouter, or Functions).
• Strong understanding of REST APIs and microservices architecture.
• Experience with SQL databases such as MySQL, PostgreSQL, or SQL Server.
• Experience with Git, CI/CD pipelines, and agile development methodologies.
• Strong troubleshooting and analytical skills.

Preferred Qualifications

• Experience with contact center technologies and call flow design.
• Knowledge of SIP, VoIP, WebRTC, and telephony protocols.
• Experience with Twilio Flex customization.
• Familiarity with cloud platforms such as AWS, Azure, or GCP.
• Experience with Docker and containerized deployments.
• Exposure to messaging platforms, chatbots, and omnichannel customer engagement solutions.