Senior Cloud Infrastructure Engineer

Qualys; Pune District; On-site; INR 2,400,000 - 4,200,000; Full time

Job summary

Qualys, Inc. in Pune is seeking a senior Cloud Infrastructure Engineer to design, provision, and maintain complex target environments for product validation and vulnerability research.

You will manage Linux and virtualization, automate deployment, and optimize CI/CD pipelines critical to lab environments. You will apply 7–12 years of cloud infrastructure experience, with at least 5 years in VMware and 4+ years Linux infra, including DevOps practices, scripting, and cloud-native configurations

Qualifications

• 7–12 years of experience in cloud infrastructure management.
• Minimum 5 years hands-on experience in VMware environments (VC, ESXi, MSPT / Linux patching, upgrades, HA-DRS, vSAN, etc.)
• At least 4 years of hands-on Linux infrastructure experience with DevOps skills

Responsibilities

• Strong hands-on experience with Linux operating systems (RHEL, CentOS, Oracle Enterprise Linux, Ubuntu) including installation, configuration, patching, and performance tuning.
• Extensive experience in Linux system administration, including server provisioning, configuration management, patching, and performance optimization.
• Strong expertise in troubleshooting complex Linux system issues, including kernel, memory, CPU, disk I/O, and network performance analysis.
• Good understanding of Linux system architecture, including CPU, memory management, file systems, networking, and system services.
• Support zero-day vulnerability configuration by rapidly provisioning and configuring required target environments.
• Strong understanding of networking concepts including TCP/IP, DNS, DHCP, HTTP/HTTPS, SSL/TLS, load balancing, routing, firewalls, and proxies.
• Hands-on experience with automation and scripting using Bash, Python, or Ansible to automate system administration and operational tasks.
• Experience managing and maintaining CI/CD pipelines and DevOps workflows using tools such as Jenkins, Git, and related automation platforms.
• Basic to intermediate knowledge of containerization and orchestration tools such as Docker and Kubernetes.
• Experience with containerized and cloud-native environments, including managing Linux systems in AWS, Azure, or GCP.
• Hands-on experience with virtualization technologies such as VMware and KVM, including VM provisioning, configuration, and administration.
• Hands-on experience in installation, configuration, and performance tuning of distributed systems such as Oracle, Elasticsearch, Cassandra, Kafka, Redis, and Ceph in multi-data centre environments.
• Strong understanding of Linux security and compliance, including system hardening, access control, SELinux policies, firewall configuration, and vulnerability management.
• Strong troubleshooting and analytical skills for production issues, infrastructure incidents, and system performance optimization.
• Work on complex technologies such as Oracle PeopleSoft, Oracle WebLogic Server, IBM WebSphere Application Server (WAS), IBM Spectrum, IBM Tivoli, Microsoft Exchange, VMware vRealize, BMC Helix & Other enterprise and customer-specific technologies.
• Experience in storage performance tuning and troubleshooting including analyzing latency, IOPS, throughput, and resolving storage bottlenecks in enterprise environments.
• Strong understanding of storage infrastructure management including capacity planning, storage replication, backup integration, and maintaining high availability in multi-datacenter environments.

Skills

Linux admin

VMware

Cloud infra

DevOps

Automation scripting

Networking

Kubernetes

Python

Bash

Linux security

Troubleshooting

Tools

VMware

Docker

Kubernetes

Jenkins

Git

Oracle

Elasticsearch

Cassandra

Kafka

Redis

Ceph

Ansible

AWS

Azure

GCP

Job description

Come work at a place where innovation and teamwork come together to support the most exciting missions in the world! Come work at a place where innovation and teamwork come together to support the most exciting missions in the world! We are looking for talented and motivated candidate who are interested in solving complex problems and deliver robust solutions. You will be responsible for design & development, learn new technology & cloud services & Kubernetes , DevOps components, and Complex Target setup for the lab. The role will be responsible for designing, provisioning, configuring, troubleshooting, and maintaining complex target environments used for product validation, vulnerability research, zero-day vulnerability configuration based on customer-specific use cases. This role requires strong hands‑on expertise in cloud infrastructure, Linux/Windows administration, virtualization, networking, automation, application deployment, and troubleshooting. The engineer will work closely with the Product team, Signature, QA, Engineering, and teams to deliver environments within defined timelines. The ideal candidate should have 7–12 years of experience in cloud infrastructure management, including a minimum of 5 years of hands‑on experience in VMware environments (VC, ESXi, MSPT / Linux patching, upgrades, HA-DRS, vSAN, etc.) and experience with other virtualization technologies. Additionally, the candidate must have at least 4 years of hands‑on experience with Linux infrastructure, along with DevOps skills in configuring, administering, and maintaining application pods and containerized environments.

Key Responsibilities & Skills

• Strong hands‑on experience with Linux operating systems (RHEL, CentOS, Oracle Enterprise Linux, Ubuntu) including installation, configuration, troubleshooting, patching, and performance tuning.
• Extensive experience in Linux system administration, including server provisioning, configuration management, patching, and performance optimization in enterprise environments.
• Strong expertise in troubleshooting complex Linux system issues, including kernel, memory, CPU, disk I/O, and network performance analysis.
• Good understanding of Linux system architecture, including CPU, memory management, file systems, networking, and system services.
• Support zero‑day vulnerability configuration by rapidly provisioning and configuring required target environments.
• Strong understanding of networking concepts including TCP/IP, DNS, DHCP, HTTP/HTTPS, SSL/TLS, load balancing, routing, firewalls, and proxies.
• Hands‑on experience with automation and scripting using Bash, Python, or Ansible to automate system administration and operational tasks.
• Experience managing and maintaining CI/CD pipelines and DevOps workflows using tools such as Jenkins, Git, and related automation platforms.
• Basic to intermediate knowledge of containerization and orchestration tools such as Docker and Kubernetes.
• Experience with containerized and cloud‑native environments, including managing Linux systems in AWS, Azure, or GCP.
• Hands‑on experience with virtualization technologies such as VMware and KVM, including VM provisioning, configuration, and administration.
• Hands‑on experience in installation, configuration, and performance tuning of distributed systems such as Oracle, Elasticsearch, Cassandra, Kafka, Redis, and Ceph in multi‑data centre environments.
• Strong understanding of Linux security and compliance, including system hardening, access control, SELinux policies, firewall configuration, and vulnerability management.
• Strong troubleshooting and analytical skills for production issues, infrastructure incidents, and system performance optimization.
• Work on complex technologies such as Oracle PeopleSoft, Oracle WebLogic Server, IBM WebSphere Application Server (WAS), IBM Spectrum, IBM Tivoli, Microsoft Exchange, VMware vRealize, BMC Helix & Other enterprise and customer‑specific technologies.
• Experience in storage performance tuning and troubleshooting including analyzing latency, IOPS, throughput, and resolving storage bottlenecks in enterprise environments.
• Strong understanding of storage infrastructure management including capacity planning, storage replication, backup integration, and maintaining high availability in multi‑datacenter environments.

Good to have

• Hands‑on experience with Windows Active Directory, DNS, Exchange, SharePoint, and windows patching (MSPT)
• Self‑motivation and sense of ownership and accountability.
• Ability to analyze problems and create solutions.
• Ability to work independently and professionally.

Qualys, Inc. (NASDAQ: QLYS) is a pioneer and leading provider of disruptive cloud‑based security, compliance and IT solutions with more than 10,000 subscription customers worldwide, including a majority of the Forbes Global 100 and Fortune 100. Qualys helps organizations streamline and automate their security and compliance solutions onto a single platform for greater agility, better business outcomes, and substantial cost savings.