Site Reliability Engineer

Site Reliability Engineer (SRE)

Experience : 5 to 9 years

location : Bangalore

Site Reliability Engineer (SRE) with expertise in Windows, Linux, Databases, Networking, and Voice/Unified Communications to ensure the reliability, availability, and performance of enterprise infrastructure and services. This role bridges the gap between operations and engineering, applying software engineering principles to infrastructure problems and driving a culture of automation, observability, and continuous improvement across heterogeneous environments.

Responsibilities

Windows Infrastructure Administration

• Design and plan the upgrade for Windows Server environments (2016/2019/2022), ensuring high availability, reliability, and performance
• Automate routine administration tasks using PowerShell scripting and configuration management tools (Ansible, SCCM)
• Ensure OS-level security hardening, compliance, and access control enforcement

Linux Infrastructure Administration

• Design and plan the upgrade for Linux environments (RHEL, CentOS, Ubuntu) across on-premises and cloud platforms
• Automate infrastructure tasks using Bash, Python scripting, and tools such as Ansible or Puppet
• Enforce security baselines, SELinux/AppArmor policies, and patch compliance

Database Administration & Reliability

• Monitor database performance, optimize queries, and manage indexing strategies to meet SLOs
• Collaborate with DBAs and application teams to resolve database-related incidents and capacity concerns
• Ensure database security, access controls, and audit compliance across all platforms

Network Operations & Reliability

• Monitor and maintain network infrastructure including routers, switches, firewalls, and load balancers
• Troubleshoot network incidents affecting availability, latency, and throughput across LAN/WAN/SD-WAN environments
• Collaborate with network engineering teams on capacity planning, topology changes, and cloud network integration

Voice & Unified Communications Administration

• Manage and maintain Voice and Unified Communications platforms including Cisco CUCM, CUBE, Unity Connection, or equivalent
• Monitor call quality, diagnose VoIP issues, and ensure SLA compliance for voice services
• Perform patching, upgrades, and configuration management of voice infrastructure components
• Coordinate with telecom vendors and carriers for circuit management and issue resolution

Mandatory Skills

• Bachelors degree in Computer Science, Information Technology, or related technology field preferred
• Minimum of 5 years of hands-on experience across infrastructure domains (Windows, Linux, Network, Database, or Voice)
• Proven experience with SRE principles including SLOs, error budgets, incident management, and blameless post-mortems
• Strong scripting and automation skills in Python, Bash, or PowerShell
• Experience with monitoring and observability platforms (Grafana, Prometheus, Datadog, Splunk, or equivalent)
• Strong working knowledge of ITIL principles and ITSM practices
• Familiarity with cloud platforms (Azure) and hybrid infrastructure environments
• Current understanding of industry trends, reliability engineering methodologies, and DevOps practices
• Outstanding verbal and written communication skills
• Excellent attention to detail with strong analytical and problem-solving capabilities
• Strong interpersonal skills and ability to collaborate across technical and non-technical teams