Technical Operations Lead – Cloud, Infrastructure & Security

Location: Vadodara (HQ) | Full-time, On-site

Experience: 8–12 years

About the Role

Phonon is looking for a hands-on Technical Operations Lead to own the security, reliability, scalability and cost efficiency of our technology infrastructure.

The role covers CloudOps, TechOps, DevOps, SecOps and FinOps, spanning our predominantly AWS-based cloud environment, Linux/network infrastructure and SIP/VoIP telephony platforms. The role will also lead resolution of complex cloud and production support issues.

Key Responsibilities

- Own and operate highly available, secure and scalable AWS infrastructure.
- Manage Linux, networking, VPNs, firewalls, load balancers and telephony infrastructure.
- Own Asterisk, FreePBX, OpenSIPS, SIP/RTP, SIP trunks, IVRs, diallers and hosted PBX environments.
- Drive DevOps, CI/CD, Infrastructure as Code, containerisation and operational automation.
- Own infrastructure security, vulnerability management, patching, IAM, hardening, backup/DR and ISO 27001 readiness.
- Establish monitoring, alerting, incident management and RCA practices.
- Drive FinOps, including AWS utilisation, rightsizing and cloud cost optimisation.
- Lead complex production incidents and cloud/infrastructure support escalations.
- Lead and mentor the Cloud/Technical Operations team.

Technology Stack

- Cloud: AWS – EC2, VPC, RDS, S3, ELB/ALB, Auto Scaling, Route 53,



CloudFront, IAM, CloudWatch, CloudTrail, Lambda, SNS
- Linux & Networking: RHEL/CentOS/Ubuntu, TCP/IP, DNS, routing, NAT, VPN, firewalls, SSL/TLS, load balancing
- Telephony: Asterisk, FreePBX, OpenSIPS, SIP, RTP, SIP Trunking, IVR, Diallers, Hosted PBX
- DevOps: Terraform, CloudFormation, Ansible, AWS CLI, Docker, Kubernetes, Git, Jenkins/GitLab CI/GitHub Actions
- Observability: Prometheus, Grafana, Loki, ELK/EFK, Nagios, CloudWatch
- Security: IAM/RBAC, encryption, secrets management, vulnerability management, infrastructure hardening, ISO 27001

Candidate Profile

- 10–12 years across cloud infrastructure, Linux, networking, DevOps and technical operations.
- Solid hands-on experience managing AWS production environments.
- Strong Linux and networking fundamentals with experience operating high-availability systems.
- Telecom/SIP/VoIP experience is strongly preferred.
- Strong troubleshooting skills across cloud → network → Linux → application → telephony.
- Experience leading technical teams and handling critical production incidents.

Preferred Certifications: RHCE and CCNA; AWS certification is an advantage.

We are looking for a hands-on technology operations owner who can troubleshoot critical infrastructure issues while building a secure, reliable, scalable and cost-efficient operations function.

📌 Cloud Infrastructure Lead (Vadodara)
🏢 phonon, automating outcomes
📍 Vadodara