Overall Experience: 7–12 years in infrastructure, cloud, network, or security engineering

Relevant Experience: 5+ years of hands-on experience with Microsoft Azure infrastructure & Network security domain.

Employment Type: Full-time , 24/7 Ops support

Role Overview:

We are seeking an experienced Senior Infrastructure, Cloud & Network Engineer to design, build, automate, and support secure and resilient technology environments across Microsoft Azure, hybrid cloud, network, security, and on-premises platforms.

The role requires strong expertise in Azure infrastructure, enterprise networking, multi-vendor security, Infrastructure as Code, and production troubleshooting. The successful candidate will collaborate with application, security, database, and support teams to deliver standardized, reliable, and operationally ready infrastructure solutions.

Key Responsibilities:

- Design, provision, and support Microsoft Azure infrastructure, including VNets, virtual machines, storage accounts, resource groups, backup vaults, Application Gateway, and Web Application Firewall.
- Implement and maintain secure connectivity using VPN, OpenVPN, ExpressRoute, VNet peering, DNS, private DNS, and IP allow-listing.
- Configure and troubleshoot routing, switching, wireless, SD-WAN, and multi-vendor firewall environments.
- Administer network-security platforms such as Cisco, Fortinet, Palo Alto, and Azure Firewall.
- Implement Infrastructure as Code using Azure Bicep or Terraform and support automated deployments through Azure DevOps YAML pipelines.
- Configure certificates, WAF policies, listeners, routing rules, and access-control policies.
- Support Windows Server, Active Directory, Group Policy, Entra ID synchronization, domain trusts, and VM operations.
- Implement and troubleshoot SFTP, FTP, SSH key exchange, public-key authentication, and secure file-transfer integrations.
- Support backup, disaster recovery, migration, failover, infrastructure decommissioning, and resilience-readiness activities.




- Troubleshoot complex production issues involving connectivity, DNS, certificates, disk capacity, access, and infrastructure health.
- Create and maintain technical runbooks, implementation procedures, reference architectures, and knowledge-transfer documentation.
- Coordinate effectively with application, security, database, cloud, and operations teams.

Required Skills:

- Strong hands-on experience in Microsoft Azure infrastructure engineering.
- Expertise in Azure networking, compute, storage, backup, Application Gateway, WAF, and security-edge services.
- Strong enterprise networking knowledge, including TCP/IP, IP addressing, routing, switching, DNS, VPN, ExpressRoute, and VNet peering.
- Hands-on experience with multi-vendor firewalls, preferably Cisco, Fortinet, Palo Alto, or Azure Firewall.
- Working experience with wireless and SD-WAN technologies.
- Experience with Azure Bicep or Terraform and Azure DevOps YAML pipelines.
- Knowledge of Windows Server, Active Directory, Group Policy, Entra ID, and identity dependencies.
- Robust production troubleshooting, documentation, communication, and cross-functional coordination skills.
- Hands-on CrowdStrike Falcon experience covering console administration, sensor lifecycle, prevention policies, detections, investigations, host containment, response operations, and troubleshooting.

Preferred Qualifications:

- Experience in financial services, trading platforms, or other regulated enterprise environments.
- Exposure to hybrid infrastructure across Azure, Google Cloud Platform, and on-premises data centers.
- Experience in supporting Routing, Switching, Security and wireless technologies for Enterprise network.
- Familiarity with Network Security Groups, OpenVPN, Kafka infrastructure, NXLog, and certificate lifecycle management.
- Experience supporting infrastructure migrations and environment decommissioning.

- Certifications such as
- Microsoft Certified: Azure Administrator Associate
- Microsoft Certified: Azure Network Engineer Associate
- Cisco CCNA or CCNP Enterprise
- Relevant firewall certification from Palo Alto, Fortinet and Cisco

📌 Senior Cloud Infrastructure Engineer (Bengaluru)
🏢 Lumen Technologies
📍 Bengaluru