Head of Infrastructure & Security

Rekruton Technologies; India; On-site; INR 3,500,000 - 5,500,000; Full time

Job summary

Rekruton Technologies in India seeks a senior Infrastructure/DevOps leader to modernize distributed environments, implement declarative IaC, and drive security across networks and containers.

You will design and harden CI/CD pipelines, enforce high availability with multi-region failover and DR, optimize resources, and lead VAPT initiatives while guiding zero-to-one transformations.

Qualifications

• 15+ years of progressive infra, DevOps, and security experience with distributed systems leadership.
• Deep real-time voice infra expertise: SIP, RTP/RTCP, Freeswitch, Asterisk.
• Proven record of zero-to-one infra transformations via IaC (Terraform, Ansible).
• Hands-on CI/CD pipeline design and standardization.
• Experience designing HA/DR architectures and business continuity plans.
• Proficiency in security: VAPT, threat modeling, incident remediation workflows.

Responsibilities

• Infra modernization and IaC implementation.
• Design and deploy robust CI/CD pipelines.
• Architect HA with multi-region failover and DR for latency-sensitive services.
• Ops: FinOps and resource optimization.
• Lead security testing and remediation across networks, endpoints, and containers.
• Operate and harden VoIP infrastructure for uptime.

Skills

Infra leadership

DevOps leadership

Security expertise

Voice infra

Terraform/Ansible

CI/CD pipelines

Tools

Freeswitch

Asterisk PBX

Job description

Key Responsibilities

• Infrastructure Modernization & IaC: Transition existing distributed server environments into automated, codifiable, and declarative infrastructure (Infrastructure as Code).




• Delivery Pipelines: Design, implement, and institutionalize robust CI/CD pipelines to ensure predictable, zero-downtime application and service deployments.




• Resilience & Reliability: Architect and enforce enterprise-grade High Availability (HA) topologies, multi-region failover, and comprehensive Disaster Recovery (DR) strategies for latency-critical voice services.




• FinOps & Resource Optimization: Establish active infrastructure monitoring, capacity planning, and resource right-sizing to optimize operational spend without compromising performance.




• Proactive Security & VAPT: Lead hands-on vulnerability assessments and penetration testing (VAPT), prioritize exposure remediation, and establish continuous security hygiene across networks, endpoints, and containers.




• Voice Network Operations: Maintain, scale, and harden mission-critical VoIP infrastructure, ensuring carrier-grade uptime, minimal jitter, and zero packet loss.

Qualifications

Must-Have:

• 15+ years of progressive infrastructure, DevOps, and security experience, including leadership in architecting distributed systems.




• Deep domain expertise in real-time voice infrastructure: VoIP protocols (SIP, RTP/RTCP), Freeswitch, Asterisk PBX, SIP proxies/SBCs (Kamailio, OpenSIPS), and low-latency network tuning.




• Proven track record of leading zero-to-one infrastructure transformations, replacing manual server administration with automated Infrastructure as Code (Terraform, Ansible).




• Hands-on experience building and standardizing modern CI/CD pipelines from the ground up.




• Demonstrated success designing and validating production HA/DR architectures and business continuity plans.




• Hands-on proficiency conducting internal/external VAPT, threat modeling, and managing security incident remediation workflows.




• Strong command of Linux internals, network diagnostics (packet capture, QoS, routing), and cloud infrastructure architecture.

Good-to-Have:

• Familiarity with regulatory frameworks and compliance controls (PCI-DSS, HIPAA, SOC 2, ISO 27001).




• Experience with containerization and orchestration architectures tailored for real-time UDP/RTP media streaming.




• Relevant industry certifications (e.g., CISSP, CISM, CEH, or advanced Cloud Architect/Security credentials).