Firewall Engineer/IP Services Engineer/Linux Engineer

Position : Linux Engineer

Role Type : Permanent

Location & Travel : Any Prodapt location in India (Hybrid / Onsite)

Client : Vodafone

Please find the Job description below.

Must : nftables (iptable), Linux OS, NixOS / RHEL / GUIX / Immutable

Overview We are seeking an experienced Senior Linux Engineer to join our infrastructure and network engineering team, responsible for deploying, implementing, and supporting secure Linux-based platforms within enterprise and data centre environments. The ideal candidate will have a minimum of 8 years of hands-on experience with Linux operating systems and a strong background in network security, firewall technologies, and infrastructure deployment. This role requires expertise in NixOS, with experience in RHEL, GUIX, or other immutable operating systems. The successful candidate will also have strong knowledge of Linux networking, security zoning, stateful firewalls, and packet filtering technologies such as nftables. Experience with Cilium and Zeek is highly desirable, while exposure to Suricata will be considered an advantage. Responsibilities Deploy, configure, and support enterprise Linux servers across production and non-production environments. Implement and manage Linux operating systems, including NixOS, RHEL, GUIX, and other immutable OS platforms. Deploy and configure Linux-based networking and security services. Implement Linux firewall solutions using nftables and stateful firewall technologies. Configure Linux networking, including Layer 2 networking, routing, VLANs, and security zoning. Support deployment and integration of enterprise firewall platforms, including Cisco, Fortinet, Palo Alto, and Check Point. Implement and troubleshoot Linux security controls, host hardening, and network segmentation. Configure and support Cilium for Kubernetes networking and security (where applicable). Deploy and maintain Suricata IDS/IPS and Zeek network monitoring solutions (preferred). Perform Linux system upgrades, patching, migrations, and implementation activities. Troubleshoot operating system, networking, firewall, and security-related issues. Collaborate with Network, Security, Cloud, and Infrastructure teams during project delivery. Develop and maintain technical documentation, implementation guides, and operational procedures. Participate in change management activities and support implementation during maintenance windows. Ensure Linux environments comply with customer security policies and operational standards.

Qualifications Mandatory Skills & Experience Minimum 8 years of hands-on Linux administration and engineering experience. Strong experience with: NixOS Red Hat Enterprise Linux (RHEL) GUIX or other immutable Linux operating systems Strong deployment and implementation experience within enterprise Linux environments. Experience implementing Linux networking and security solutions. Strong knowledge of: Linux Networking Layer 2 Networking TCP/IP VLANs Security Zoning Stateful Firewalls Hands-on experience with nftables. Experience integrating Linux environments with enterprise firewall platforms, including: Cisco Firewalls Fortinet FortiGate Palo Alto Networks Check Point Strong troubleshooting and root cause analysis skills. Experience working in enterprise and data centre environments. Familiarity with ITIL processes and change management. Preferred Skills Experience with Cilium for cloud-native networking and security. Experience deploying or administering Suricata IDS/IPS. Experience using Zeek for network traffic analysis and security monitoring. Knowledge of container platforms such as Kubernetes and Docker. Experience with Linux automation and configuration management tools (Ansible, Puppet, SaltStack). Scripting experience using: Bash Python Shell Scripting Knowledge of SELinux and Linux security hardening. Exposure to Infrastructure as Code (IaC) and DevOps practices. Experience with cloud platforms (AWS, Azure, GCP). Preferred Certifications Red Hat Certified Engineer (RHCE) Red Hat Certified System Administrator (RHCSA) Linux Foundation Certified System Administrator (LFCS) Linux Foundation Certified Engineer (LFCE) Kubernetes Administrator (CKA) (Desirable) ITIL Foundation Key Competencies Strong Linux troubleshooting and problem-solving skills. Excellent understanding of Linux security architecture. Strong analytical and root cause analysis abilities. Excellent communication and stakeholder management skills. Ability to work independently and within multidisciplinary project teams. Strong documentation and technical reporting skills. Customer-focused with the ability to deliver high-quality implementation projects. Ability to manage multiple deployment activities in a fast-paced environment.

IP Services Engineer Position : IP Services Engineer

Role Type : Permanent

Location & Travel : Any Prodapt location in India (Hybrid / Onsite)

Client : Vodafone

Please find the Job description below.

Overview We are seeking a highly skilled Senior IP Services Engineer with extensive experience in enterprise IP services and application delivery technologies. The ideal candidate will have 10+ years of hands-on experience implementing and supporting F5 BIG-IP, Infoblox DDI, NGINX, and related IP service technologies within large-scale enterprise and data centre environments. The role will focus on the deployment, migration, implementation, and optimisation of application delivery controllers (ADC), DNS/DHCP/IPAM (DDI), and web proxy solutions. Candidates should also possess scripting capabilities to support automation and operational efficiency, along with a strong understanding of Routing & Switching fundamentals. Responsibilities Deploy, configure, and implement enterprise IP Services solutions across customer environments. Lead F5 BIG-IP migration projects, including migration from hardware appliances to Virtual Editions (VE/VM). Install, configure, and maintain NGINX web servers, reverse proxies, and load balancing solutions. Deploy and manage Infoblox DDI solutions, including DNS, DHCP, and IP Address Management (IPAM). Configure and optimise Layer 4–7 application delivery and load balancing services. Perform implementation, migration, and upgrade activities for enterprise IP Services infrastructure. Develop and maintain automation scripts to streamline deployment and operational tasks. Troubleshoot complex application delivery, DNS, DHCP, IPAM, and load balancing issues. Collaborate with Network, Security, Infrastructure, Cloud, and Application teams during project delivery. Perform implementation validation, testing, cutovers, and post-deployment support. Create and maintain technical documentation, implementation guides, and operational procedures. Participate in change management processes and ensure all implementation activities comply with customer standards. Provide technical expertise and support for critical incidents and infrastructure upgrades. Qualifications Mandatory Skills & Experience Minimum 10 years of hands-on experience in enterprise IP Services technologies. Strong implementation and deployment experience with: F5 BIG-IP (LTM, GTM/DNS) F5 Virtual Edition (VE) / Migration to Virtual Machine NGINX Infoblox DDI (DNS, DHCP, IPAM) Proven experience migrating F5 appliances from physical to virtual environments. Strong experience configuring: Load Balancing SSL Offloading Virtual Servers Pools Health Monitors iRules (preferred) Experience deploying and administering NGINX as: Reverse Proxy Load Balancer Web Server API Gateway Strong knowledge of Infoblox DDI architecture and implementation. Hands-on scripting/programming experience using one or more of: Python Bash Shell Scripting PowerShell Strong troubleshooting and root cause analysis skills. Good understanding of Routing & Switching fundamentals to support IP Services deployment. Experience working within enterprise and data centre environments. Familiarity with ITIL processes and change management. Good to Have Experience with open-source technologies and automation frameworks. Knowledge of Infrastructure as Code (IaC) tools such as Ansible or Terraform. Experience with Linux system administration. Exposure to Kubernetes, Docker, or containerised application environments. Experience with cloud-based load balancing and DNS services (AWS, Azure, GCP). Knowledge of REST APIs and API integrations. Preferred Certifications F5 Certified BIG-IP Administrator (F5-CA) F5 Certified Technology Specialist (F5-CTS) NGINX Certified Professional Infoblox Certified DDI Administrator (CDCA) Cisco CCNP Enterprise ITIL Foundation Key Competencies Excellent analytical and troubleshooting skills. Strong understanding of enterprise application delivery architecture. Excellent communication and stakeholder management skills. Ability to work independently and within multidisciplinary project teams. Customer-focused with strong problem-solving capabilities. Strong documentation and technical reporting skills. Ability to manage multiple implementation projects simultaneously in a fast-paced environment.

Position : Firewall Engineer

Role Type : Permanent

Location & Travel : Any Prodapt location in India (Hybrid / Onsite)

Client : Vodafone

Please find the Job description below.

Overview We are seeking an experienced Senior Firewall Engineer to support the deployment, implementation, and management of enterprise network security solutions across complex customer environments. The successful candidate will have extensive hands-on experience with leading firewall technologies, including Fortinet FortiGate, Cisco ASA, Palo Alto, and Check Point, and will play a key role in delivering secure network infrastructure projects. The role primarily focuses on firewall implementation, migrations, security policy deployment, and troubleshooting within enterprise and data centre environments. Exposure to proxy technologies, automation tools / scripting, and Linux administration would be advantageous. Responsibilities Deploy, configure, and implement enterprise firewall solutions across customer environments. Install, configure, and support Fortinet FortiGate, Cisco ASA, Palo Alto, and Check Point firewalls. Perform firewall policy creation, optimisation, and rule management in accordance with security standards. Execute firewall migrations, upgrades, hardware refreshes, and software updates. Support deployment activities, including implementation planning, cutovers, and post-deployment validation. Troubleshoot complex firewall and network security issues and perform root cause analysis. Collaborate with network, security, infrastructure, and project teams to deliver customer projects. Implement NAT, VPN (Site-to-Site and Remote Access), IPS, URL filtering, and security policies. Assist with firewall high availability (HA) configurations and failover testing. Support security compliance by ensuring firewall configurations adhere to organisational standards and best practices. Maintain implementation documentation, configuration backups, and operational procedures. Participate in change management processes and ensure all activities follow approved implementation plans. Provide technical support during planned maintenance windows and network cutovers where required.
Qualifications Mandatory Skills & Experience Minimum 6 years of hands-on experience implementing and supporting enterprise firewall solutions. Strong deployment and implementation experience with: Fortinet FortiGate Cisco ASA Palo Alto Networks Firewalls Check Point Firewalls Strong understanding of Routing & Switching fundamentals to support firewall deployments. Experience implementing: Security Policies NAT VPN (IPSec & SSL) Access Control Lists (ACLs) High Availability (HA) Experience with firewall migrations, upgrades, and production cutovers. Strong troubleshooting and root cause analysis skills across network security environments. Experience working in enterprise and data centre environments. Familiarity with ITIL processes and change management. Good to Have Experience with Zscaler Internet Access (ZIA) or Zscaler Proxy. Exposure to other secure web gateway/proxy solutions. Experience with automation and scripting tools (Python, Ansible, Bash, PowerShell). Basic Linux administration and troubleshooting skills. Knowledge of Infrastructure as Code (IaC) or network automation frameworks. Exposure to cloud security networking (AWS, Azure, GCP). Preferred Certifications Palo Alto Networks Certified Network Security Engineer (PCNSE) Fortinet NSE 4 / NSE 5 / FCP Network Security Check Point CCSA / CCSE Cisco CCNP Security ITIL Foundation Key Competencies Strong analytical and troubleshooting skills. Excellent communication and stakeholder management abilities. Ability to work independently and collaboratively within project teams. Customer-focused with a proactive approach to problem-solving. Strong documentation and technical reporting skills. Ability to manage multiple deployment activities and work effectively under pressure.