Lead - SRE, Infrastructure, Network & Security

Company: Dayal Fertilizers Private Limited (Dayal AgriTech Group)

Department: Platform Engineering

Location: Partapur, Meerut, Uttar Pradesh

Experience: 10+ Years | Technical Lead

Reporting To: General Manager - Platform Engineering

Work Timings: 10:00 AM - 6:00 PM, with critical incident support

Job Purpose

Own the IT infrastructure and networks across Dayal AgriTech Group's data centers, offices, and manufacturing sites. Use SRE practices to keep systems available, secure, recoverable, and scalable, with minimal downtime.

Key Responsibilities

Network & Security

Configure LAN/WAN, Cisco routers and switches, L2/L3 routing, VLANs, and segmentation

Manage ISP redundancy, load balancing, and failover

Administer NGFW/UTM, IPS/IDS, NAT/PAT, DMZ, and access policies

Set up site-to-site and remote-access VPNs

Oversee Seqrite endpoint protection; stay current on EDR, XDR, and MDR

Harden systems, remediate vulnerabilities, and control privileged access

Servers, Storage & Databases

Manage Windows Server, Linux, Active Directory, GPOs, DNS, DHCP, and proxy servers

Configure and maintain server hardware, virtualization, RAID, and SAN/NAS storage

Plan server upgrades and end-of-life hardware replacements

Automate remote OS patching and firmware/BIOS updates

Install and support MSSQL and MySQL; handle basic queries and user access

Data Center & Facilities

Manage racks, structured cabling, UPS, PDUs, DG interfaces, and cooling

Oversee environmental monitoring and physical access control

Maintain IP-based CCTV and biometric attendance systems

Plan capacity, commissioning, and preventive maintenance; keep DCIM records current

Reliability & Recovery (SRE)

Define SLIs and SLOs for infrastructure services

Monitor availability, performance, and capacity (Zabbix, Nagios, Prometheus, Grafana)

Analyze logs, traffic, and security events to find faults

Lead incident response, escalation, and root-cause analysis

Own DR readiness: verify backups, test restores, and run failover drills

Write recovery runbooks; automate routine tasks with Bash, Python, and Ansible

DNS, Web & Email

Manage domains, DNS zones and records, DNSSEC, and SSL/TLS certificates

Maintain NGINX/Apache, reverse proxies, load balancers, and DMZ hosting

Configure SMTP/IMAP, mail routing, SPF, DKIM, DMARC, and hybrid/split-delivery email

Administer Microsoft 365 or Google Workspace users, access, and identity

Procurement, Vendors & Assets

Plan IT budgets and write technical specifications

Evaluate vendors, negotiate terms, and manage purchases

Renew AMCs, licenses, subscriptions, warranties, and support contracts on time

Track hardware and software assets, endpoint compliance, and lifecycle costs

Service Delivery & Reporting

Run the IT helpdesk; resolve tickets within agreed SLAs

Support ERP and production-critical systems across offices and plants

Handle escalations; coordinate with internal teams, vendors, and stakeholders

Follow formal change control for all infrastructure work

Maintain network diagrams, configuration records, troubleshooting guides, and SOPs

Present monthly MIS reports on uptime, network performance, tickets, security incidents, capacity, and hardware aging

Must-Have Requirements

10+ years of hands-on enterprise infrastructure and network experience

Manufacturing, plant, or multi-site experience, with exposure to ERP and production-critical systems

Strong Linux, Windows Server, Active Directory, storage, and virtualization skills

Hands-on Cisco, L2/L3 networking, firewall, and VPN experience

Solid DNS, email, backup, and DR skills

Scripting and automation skills, including remote OS, firmware, and BIOS rollouts

IT budgeting, vendor negotiation, and AMC/contract management experience

Ability to resolve critical infrastructure failures independently

Preferred Skills

CCNA/CCNP, RHCSA/RHCE, or equivalent hands-on expertise

High-availability systems, clustering, and server modernization

EDR, XDR, MDR, and advanced threat detection

ITSM practices: incident, change, and SLA management

Security audits and business continuity planning

Soft Skills

Strong troubleshooting and analytical ability

High ownership of uptime and service continuity

Calm prioritization of incidents under pressure

Clear communication with users, vendors, and management

Ability to lead multiple workstreams independently

Disciplined planning, documentation, and reporting

Cost-conscious approach to procurement and vendors

Proximity to Delhi-NCR

Approximate distances:

Delhi: 70 km

Ghaziabad: 40 km

Noida: 55 km

Connectivity:

Road: Access via NH-58 and the Delhi–Meerut Expressway.

Rail: Railway connectivity to Delhi and surrounding areas.

Metro/Rapid Rail: Connectivity through the Delhi Metro and the Namo Bharat (RRTS) network, subject to the selected route and station.

Cost Advantage: Meerut offers a comparatively lower cost of living than Delhi and Noida, making it an attractive location for professionals seeking affordable accommodation and living expenses.