5 DNS Jobs in Mumbai | DNS Job openings in Mumbai

Job Title : Cisco DNAC Wireless L2+ Engineer

Location : Mumbai

Experience : 6 to 10 Years

Job Level : L2+

Work Mode : On-site / As per project requirements

Job Summary :

We are looking for an experienced Cisco DNAC Wireless L2+ Engineer with strong hands-on expertise in enterprise wireless infrastructure, Cisco Catalyst Center (formerly DNA Center/DNAC), Cisco Wireless LAN Controllers (WLC), Cisco Identity Services Engine (ISE), and Software-Defined Access (SD-Access/SDA).

The candidate will be responsible for managing, troubleshooting, optimizing, and supporting enterprise wireless and campus network environments, handling L2+ escalations, and ensuring network availability, performance, and security.

Mandatory skills :

Cisco DNAC / Catalyst Center, Cisco Wireless LAN Controllers (9800 Series), Cisco Access Points, Cisco ISE, SD-Access (SDA), Cisco Catalyst Switches, Routing & Switching, VLAN, STP, HSRP, OSPF, BGP, TCP/IP, DHCP, DNS, AAA, RF Troubleshooting, Wireless Optimization, Network Troubleshooting, Incident Management.

Key Responsibilities :

• Manage and support enterprise wireless infrastructure and Cisco-based campus networks.
• Handle L2+ escalations related to wireless, LAN, Cisco DNAC, and network connectivity issues.
• Configure, monitor, troubleshoot, and maintain Cisco Catalyst Center (DNAC) environments.
• Manage Cisco Wireless LAN Controllers (9800 series preferred), Cisco Access Points, and Cisco Catalyst switches.
• Configure and troubleshoot Cisco ISE integration, authentication, authorization, and access policies.
• Support and troubleshoot Cisco SD-Access (SDA) architecture and network segmentation.
• Perform wireless health analysis, RF optimization, coverage assessment, and interference troubleshooting.
• Resolve issues related to client onboarding, wireless roaming, authentication, DHCP, DNS, and application visibility.
• Implement network automation, device provisioning, and configuration management using DNAC workflows and templates.
• Perform software upgrades, patching, configuration backups, and network lifecycle management.
• Troubleshoot routing, switching, VLAN, and wireless connectivity issues using logs, packet captures, and network diagnostic tools.
• Coordinate with OEM Technical Assistance Center (TAC) teams and internal stakeholders during critical incidents.
• Participate in network design reviews, migrations, upgrades, and infrastructure transformation projects.
• Prepare and maintain High-Level Design (HLD), Low-Level Design (LLD), Standard Operating Procedures (SOPs), Root Cause Analysis (RCA), and operational documentation.
• Ensure compliance with network security policies, operational standards, and service-level agreements (SLAs).
• Mentor L1/L2 engineers and contribute to continuous improvement in network operations.

Mandatory Technical Skills :

• Cisco Catalyst Center / DNAC : Hands-on experience with configuration, monitoring, assurance, provisioning, and troubleshooting.
• Cisco Wireless : Strong experience with WLCs, preferably Cisco 9800 series, and Cisco Access Points.
• Cisco ISE : Experience with AAA, authentication, authorization, and wireless security integration.
• Cisco SD-Access (SDA) : Understanding of architecture, segmentation, and troubleshooting.
• Routing & Switching : Strong knowledge of VLANs, STP, HSRP, OSPF, BGP, and TCP/IP.
• Network Services : Working knowledge of DHCP, DNS, AAA, and enterprise network connectivity.
• Wireless Troubleshooting : RF analysis, roaming, client onboarding, interference, and coverage optimization.
• Network Diagnostics : Experience with packet analysis, incident management, and root cause identification.

Experience Requirements :

• 6+ years of overall networking experience.
• Minimum 3+ years of hands-on experience with Cisco DNAC / Catalyst Center and enterprise wireless environments.
• Experience handling L2+ escalations and complex network incidents.
• Practical experience supporting enterprise campus networks and business-critical infrastructure.

Preferred Certifications :

• CCNP Enterprise.
• Cisco certifications related to Catalyst Center, SD-Access, or enterprise wireless networking.

Good to Have :

• Experience working in large enterprise environments or managed services organizations.
• Exposure to Aruba or Juniper wireless solutions.
• Experience in customer-facing technical support and critical incident management.
• Knowledge of wireless survey tools and RF analysis utilities.
• Experience with network automation and configuration templates.

Required Soft Skills :

• Strong communication and stakeholder management skills.
• Excellent analytical, troubleshooting, and problem-solving abilities.
• Ability to work in a 24×7 support environment, including rotational shifts if required.
• Good technical documentation and presentation skills.
• Ability to mentor junior engineers and drive operational excellence.

Ideal Candidate : A hands-on networking professional with strong Cisco DNAC/Catalyst Center, enterprise wireless, WLC, ISE, and SDA expertise, capable of independently managing complex L2+ escalations and supporting enterprise network infrastructure.

Location : Mumbai

Big Picture (The Opportunity) :

Are you looking for an opportunity to advance your Career? & If you are able to maintain a positive attitude even when everything goes wrong, if you are detail oriented and self motivated with a passion to learn and improve your skills and knowledge, we have a perfect job for you !

What do we want from you ? (Our Expectations) :

• Zero to 2 years experience in Linux Operating System.
• Flexible working hours - able to support occasional nights, weekends, and call-ins, able to quickly adapt to a constantly changing faced paced environment. Open to travel to sites.
• An ideal person who is excited and motivated about running and supporting a production - grade critical infrastructure and looks for opportunities to improve processes with automation.

What are you required to do ? (Your Responsibilities) :

• Proactively maintain and develop all linux infrastructure technology to maintain a 24*7*365 uptime service.
• Engineering of systems administration-related various solutions for our various SAAS products and projects as well as operational needs.
• Proactively monitoring system performance and capacity planning.
• Providing technical support to customers for Applications, Operating systems, and networking.
• Will also be the first point of contact for our clients, where installations are placed on a permanent basis, for basic troubleshooting and problem solving.
• Fault finding, analysis and logging information for reporting of performance exceptions.
• Maintain best practices on managing systems and services across all environments.

Skills & Qualification Required (Add Value) :

• Graduate - Preferred to have Bachelor‘s Degree in Engineering, Computer Science or related field.
• He / She should be familiar with the installation and configuration of Linux operating systems and setup and operation of TCP/IP networking on Linux systems also familiar with Internet concepts including SMTP, IMAP, POP, HTTP, DNS, LDAP and related protocols.
• You should possess excellent communication skills .
• Knowledge of Email concepts, Helpdesk Concept , VoIP Concept , Cloud computing will be an added advantage.

IT Infrastructure & System Administration 

• Manage Windows/Linux servers, desktop systems, Active Directory, DNS, DHCP, and virtual environments (VMware/Hyper-V) 

• Monitor system performance and implement improvements for efficiency and availability 

• Oversee patch management, backups, disaster recovery, and security configurations 

• Ensure IT compliance, conduct audits, and maintain detailed documentation

DevOps & Cloud Operations 

• Design, implement, and manage CI/CD pipelines using Jenkins, GitHub Actions, or similar tools 

• Manage container orchestration using Kubernetes; deploy infrastructure using Terraform 

• Administer and optimise AWS cloud infrastructure 

• Automate deployment, monitoring, and alerting solutions for production environments 

Security, Maintenance & Support 

• Define and enforce IT and DevOps security policies and procedures 

• Perform root cause analysis (RCA) for system failures and outages 

• Provide Tier 2/3 support and resolve complex system and production issues 

Collaboration & Communication 

• Coordinate IT projects (e.g., upgrades, migrations, cloud implementations) 

• Collaborate with engineering and product teams for release cycles and production deployments 

• Maintain clear communication with internal stakeholders and provide regular reporting 

Qualifications & Skills 

• Bachelor's or master’s in computer science, IT, or related field 

• 3-8 years of experience in IT systems administration and/or DevOps roles 

• Proficiency in: 

o Windows Server (2016/2019/2022), Linux systems 

o Cloud platforms (preferably AWS) o CI/CD tools (Jenkins, GitHub Actions, etc.) 

o Kubernetes, Docker, Terraform, Python/Shell scripting 

o Database management (MySQL, MongoDB) 

• Relevant certifications (e.g., MCSA, AWS, DevOps) are a plus 

• Strong knowledge of Windows Server (2016/2019/2022) and Windows operating systems. 

• Experience with Active Directory, Group Policy, DNS, DHCP, and other Windows-based services. 

• Familiarity with virtualization technologies (e.g., VMware, Hyper-V). 

• Proficiency in scripting languages (e.g., PowerShell). 

• Strong understanding of networking principles and protocols. 

• Relevant certifications (e.g., MCSA, MCSE) are a plus. 

Key Competencies 

• Strong problem-solving and troubleshooting skills 

• Excellent communication and interpersonal abilities 

• Ability to manage multiple priorities and work independently 

• High attention to detail and a continuous improvement mindset

The Impact you will create on the Job

Understand and handle deploying, troubleshooting issues with Compute, Networking, Storage, Database services on AWS & Azure.
IT experience in a team handling the cloud, infrastructure and Linux, Windows operating systems.
Working on  different services in AWS & Azure Cloud Platform
In depth knowledge of a wide range of AWS & Azure services in Compute, Storage, Networking, Infrastructure as a code, Serverless computing, IAM, CI/CD pipelines
Possess a thorough understanding of Internet based technologies (DNS, Security, IP Routing, SSH, FTP, HTTP/HTTPS etc.)