Tata Communications Redefines Connectivity with Innovation and IntelligenceDriving the next level of intelligence powered by Cloud, Mobility, Internet of Things, Collaboration, Security, Media services and Network services, we at Tata Communications are envisaging a Current World of Communications

Purpose of the Role:

The Engineer will be responsible for supporting, monitoring, troubleshooting, and maintaining infrastructure, VoIP platforms, containerized applications, and DevOps environments. This role requires working closely with cross-functional teams to ensure the reliability, scalability, security, and performance of communication platforms and cloud-based services. The individual will contribute to infrastructure automation, CI/CD processes, system administration, and operational excellence while continuously enhancing platform stability and performance.

Key Responsibilities:

VoIP & Unified Communications Support

- Support and troubleshoot VoIP/SIP-based communication platforms.
- Manage and maintain VoIP components including Asterisk, FreeSWITCH, and Kamailio.
- Analyze call flow, SIP signaling, and media issues using Wireshark and related monitoring tools.
- Investigate and resolve customer-reported voice quality, routing, and connectivity issues.
- Monitor platform health and ensure high availability of communication services.

Cloud Infrastructure Management

- Support AWS cloud infrastructure and associated networking services.
- Work with AWS services including:
- - EC2
- EKS
- S3
- Elastic Load Balancer (ELB)

- Assist in provisioning, monitoring, troubleshooting, and optimizing cloud resources.
- Support cloud networking, DNS, security groups, NACLs, and WAF configurations.

Containerization & Kubernetes:

- Deploy and manage containerized applications using Docker and Docker Compose.




- Support Kubernetes environments including:
- - Containers and Pods
- Namespaces
- Services
- Volumes
- Ingress
- Node Groups
- Auto Scaling
- Helm Charts
- ConfigMaps

- Assist in cluster monitoring, troubleshooting, and performance optimization.

DevOps & Automation:

- Support CI/CD pipeline implementation and maintenance.
- Work with tools such as:
- - Jenkins
- GitHub
- Argo CD
- Ansible

- Manage source code repositories, branching strategies, tagging, releases, and version control practices.
- Develop and maintain automation scripts using Shell and Python.
- Participate in deployment planning and production releases.

Systems Administration:

- Manage and troubleshoot Linux (CentOS/RedHat) and Windows environments.
- Execute administration and troubleshooting activities using Linux and Windows CLI commands.
- Monitor system performance, logs, and resource utilization.
- Maintain system configurations and perform routine maintenance activities.

Networking & Security:

- Support networking components including HTTP/TCP proxy servers.
- Understand and troubleshoot LAN/WAN, routing, DNS, and connectivity issues.
- Assist in implementing security best practices related to:
- - SSL/TLS
- Security Groups
- Network Access Controls
- Vulnerability Assessments and Penetration Testing (VAPT)

- Ensure compliance with security and operational standards.

Process & Collaboration:

- Participate in Agile ceremonies and SDLC activities.
- Collaborate with engineering,



product, operations, and support teams.
- Document troubleshooting procedures, deployment processes, and operational runbooks.
- Contribute to continuous improvement initiatives and automation opportunities.

Required Technical Skills:

VoIP Technologies

- Asterisk
- FreeSWITCH

- Kamailio
- SIP / VoIP
- Wireshark

Cloud Technologies

- AWS Cloud Services:
- - EC2
- EKS
- S3

Container & Orchestration

- Docker
- Docker Compose
- Kubernetes
- Helm Charts
- ConfigMaps
- Auto Scaling
- Ingress

DevOps Tools

- Jenkins
- Ansible
- Argo CD
- GitHub
- CI/CD Integrations
- Jira

Operating Systems & Scripting:

- Linux (CentOS/RedHat)
- Windows Administration
- Shell Scripting
Python

- Networking & Security

- Networking Fundamentals
- DNS
- WAF
- Security Groups
- NACL
- HTTP/TCP Proxy
- SSL/TLS
- VAPT Concepts

Qualifications:

- Bachelor s degree in computer science, Information Technology, Electronics & Communication, or related field.
- 1-2 years of experience in Cloud Infrastructure, DevOps, VoIP, Platform Support, or related domains.
- Exposure to AWS cloud platforms, Kubernetes, Linux administration, and VoIP technologies.
- Relevant AWS, Kubernetes, Linux, or DevOps certifications will be an added advantage.

Required Soft Skills:

- Excellent verbal and written communication skills.
- Strong analytical and problem-solving abilities.
- Ability to prioritize tasks and manage multiple assignments effectively.
- Strong ownership mindset with a proactive approach to issue resolution.
- Ability to work effectively with cross-functional and geographically distributed teams.
- Demonstrated capability to handle ambiguity and drive outcomes in dynamic environments.
Continuous learning attitude and passion for innovation.

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📌 Assistant Manager - Customer Interaction Suite (Bengaluru)
🏢 Tata Communications
📍 Bengaluru