3,543 Network Infrastructure jobs in India
Wireless Network Engineer
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Role Wireless Network Engineer
experience 5+ years
location delhi ncr hyderabad
jd
Job Summary:
We are seeking a highly experienced Level 3 Wireless Network Engineer with deep expertise in both Cisco and Aruba wireless technologies . The ideal candidate will lead the design, deployment, troubleshooting, and optimization of enterprise-grade wireless infrastructures. You will act as a subject matter expert (SME), resolving high-level wireless issues and driving continuous improvements in performance, scalability, and security.
Key Responsibilities:
- Design and deploy large-scale wireless LAN (WLAN) environments using Cisco WLCs and Aruba (Mobility Controllers, Instant APs, Central).
- Optimize channel planning , band steering , and power level adjustments to reduce interference and maximize coverage.
- Architect and implement high-availability wireless designs , including N+1 controller redundancy, LAGs, VRRP/HA groups.
- Administer Cisco WLCs (9800) and Aruba Mobility Controllers (MM/MC architecture) .
- Configure WLANs, SSIDs, AAA policies, and AP groups with role-based access control (RBAC).
- Implement Fast Roaming (802.11r/k/v) , bandwidth throttling , application visibility , and WIPS/WIDS .
- Manage firmware upgrades , controller failovers , and AP image preloading strategies.
- Integrate with RADIUS servers (ISE, forescout) for 802.1X authentication.
- Configure Guest access portals , MAC-based authentication , and Captive Portals (internal and external).
- Analyze wireless packet captures using Wireshark , or Aruba AirWave/Central .
- Resolve L2/L3 roaming issues, high latency, client disconnections, and interference problems.
- Monitor KPIs like SNR, RSSI, retransmission rates, and throughput to identify RF anomalies.
- Correlate client issues using Aruba Central
Required Skills & Experience:
- 5+ years of experience in enterprise wireless networking .
- Strong hands-on expertise in both Cisco and Aruba wireless ecosystems .
- Proficiency with:
- Cisco Wireless LAN Controllers (9800 Series, AireOS, Catalyst APs)
- Aruba Controllers , Instant APs , Aruba Central , AirWave
- Wireless security protocols : WPA2/WPA3, 802.1X, PSK, MAC auth
- Authentication systems : Cisco ISE
- RF tuning , mesh networks , client load balancing , high-density deployment
- Strong understanding of Layer 2/3 networking , VLANs , Multicast , QoS , and DHCP relay .
- Comfortable with CLI (Cisco IOS/XE, Aruba OS) and web-based UIs .
- Experience with cloud-managed wireless solutions (Aruba Central, Cisco Meraki is a plus).
- Familiarity with Wi-Fi 6 and Wi-Fi 6E features and limitations.
Preferred Certifications:
- Cisco Certified Specialist – Enterprise Wireless
- Aruba Certified Mobility Professional (ACMP)
Soft Skills:
- Strong analytical and troubleshooting skills.
- Excellent documentation and communication abilities.
- Proven leadership in high-severity incidents and RCA investigations.
- Capable of mentoring L1/L2 engineers and leading knowledge transfer sessions.
- Ability to manage multiple priorities and work independently.
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Network Infrastructure Engineer

Posted 1 day ago
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Astellas Pharma Inc. is a pharmaceutical company conducting business in more than 70 countries around the world. We are committed to turning innovative science into medical solutions that bring value and hope to patients and their families. Keeping our focus on addressing unmet medical needs and conducting our business with ethics and integrity enables us to improve the health of people throughout the world. For more information on Astellas, please visit our website at .
This position is based in Bangalore, India. We recognize the importance of work/life balance, and we are proud to offer a hybrid working solution allowing time to connect with colleagues at the office with the flexibility to also work from home. We believe this will optimize the most productive work environment for all employees to succeed and deliver. Hybrid work from certain locations may be permitted in accordance with the Responsible Flexibility Guidelines.
**Purpose and Scope:**
We are seeking a skilled and motivated Network Infrastructure Engineer to join our team. As a Network Infrastructure Engineer, you will play a crucial role in designing, implementing, and maintaining our network infrastructure. Your expertise will contribute to the seamless operation of our communication systems and ensure optimal performance.
**Responsibilities and Accountabilities:**
- Network Design and Implementation:
+ Collaborate with cross-functional teams to design and deploy network solutions based on organizational requirements.
+ Configure and manage network hardware, including routers, switches, and wireless access points.
+ Monitor network performance, availability, and reliability.
- Technical Support and Troubleshooting:
+ Provide end-to-end technical support for network-related issues.
+ Respond to inquiries promptly anaad efficiently.
+ Troubleshoot and resolve network incidents.
- Collaboration and Communication:
+ Work closely with internal and external stakeholders to ensure smooth network operations.
+ Communicate effectively with team members, clients, and vendors.
+ Participate in meetings and discussions related to network planning and improvements.
+ Work with network equipment and service vendors to ensure quality service
- Security and Compliance:
+ Implement and maintain security protocols, including firewalls and intrusion detection systems.
- Stay up-to-date with industry trends, technologies, and best practices to continuously improve network infrastructure and security
**Required Qualifications:**
- Strong proficiency in written and verbal English.
- A minimum of 5-7 years of experience in network solutions.
- Ability to diagnose and resolve network issues efficiently, using various troubleshooting techniques and tools.
- Strong knowledge of networking solutions (Cloud and Traditional), standards, and best practices.
- Demonstrated experience in designing, implementing, and maintaining complex network infrastructure.
- Understanding of network security principles and practices, including firewalls, intrusion detection/prevention systems (IDS/IPS), VPNs, and access control lists (ACLs).
- Proficiency in networking strategy development and integration planning.
**Preferred Qualifications:**
- Relevant certifications such as CCNA or CCNP or other networking-specific certifications.
- Previous experience as an IT Network Engineer.
- Strong problem-solving and analytical skills.
Category
Astellas is committed to equality of opportunity in all aspects of employment.
EOE including Disability/Protected Veterans
Network Infrastructure Engineer
Posted today
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Key Responsibilities:
- Design, implement, and manage the company's core network infrastructure.
- Configure and maintain routers, switches, firewalls, and load balancers.
- Ensure network security through firewalls, VPNs, and intrusion detection/prevention systems.
- Monitor network performance and troubleshoot issues to ensure high availability and reliability.
- Develop and document network configurations, procedures, and standards.
- Collaborate with system administrators and other IT teams to resolve complex issues.
- Plan and execute network upgrades and expansions.
- Stay current with emerging network technologies and industry best practices.
- Provide technical support and guidance to junior network staff.
- Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
- 5+ years of experience in network engineering and administration.
- Expertise in TCP/IP, routing protocols (BGP, OSPF), and switching technologies.
- Hands-on experience with Cisco, Juniper, or other leading network hardware vendors.
- Strong understanding of network security principles and best practices.
- Experience with VPN, MPLS, and WAN technologies.
- Relevant certifications such as CCNA, CCNP, or equivalent are highly preferred.
- Excellent problem-solving and analytical skills.
- Ability to work effectively in a fast-paced, team-oriented environment in Surat, Gujarat, IN .
Network Infrastructure Engineer
Posted 3 days ago
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Job Description
Key responsibilities include:
- Designing, implementing, and managing the company's core network infrastructure, including routers, switches, firewalls, and load balancers.
- Monitoring network performance and proactively identifying and resolving issues to ensure high availability and reliability.
- Performing regular maintenance and upgrades of network hardware and software.
- Developing and implementing network security measures to protect against threats and vulnerabilities.
- Troubleshooting complex network problems and collaborating with cross-functional teams to implement solutions.
- Configuring and optimizing network protocols and services to enhance performance.
- Documenting network configurations, procedures, and standards.
- Participating in the evaluation and adoption of new networking technologies.
- Providing technical support and guidance to junior network engineers and other IT staff.
- Ensuring adherence to industry best practices and company security policies.
- Capacity planning and network growth management.
Network Infrastructure Engineer
Posted today
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Overview
WELCOME TO
We're the team that keeps airports moving, airlines flying smoothly, and borders open. Our tech and communication innovations are the secret behind the success of the worlds air travel industry.
You'll find us at 95% of international hubs. We partner closely with over 2,500 transportation and government clients, each with their own unique needs and challenges. Our goal is to find fresh solutions and cutting-edge tech to make their operations run like clockwork. Want to be a part of something big?
Are you ready to love your job? The adventure begins right here, with you, at SITA.
ABOUT THE ROLE & TEAM
SITA is proud to present a great opportunity for a Network Infrastructure Engineer to join our Network Engineering team. You will be part of a diverse and creative team that is continually striving to offer the best quality products and services that are continuously transforming air travel.
As a Network Infrastructure Engineer , you will study and organize the validation of new features of the SITA Managed SDWAN Network solution to answer to customer and product management requirements with appropriate architectures.
WHAT YOULL DO
Qualifications
ABOUT YOUR SKILLS
WHAT WE OFFER
Were all about diversity. We operate in 200 countries and speak 60 different languages and cultures. Were really proud of our inclusive environment. Our offices are comfortable and fun places to work, and we make sure you get to work from home too. Find out what it's like to join our team and take a step closer to your best life ever.
Flex Week: Work from home up to 2 days/week (depending on your teams needs)
Flex Day: Make your workday suit your life and plans.
Flex Location: Take up to 30 days a year to work from any location in the world.
Employee Wellbeing: Weve got you covered with our Employee Assistance Program (EAP), for you and your dependents 24/7, 365 days/year. We also offer Champion Health a personalized platform that supports a range of wellbeing needs.
Professional Development : Level up your skills with our training platforms, including LinkedIn Learning!
Competitive Benefits : Competitive benefits that make sense with both your local market and employment status.
SITA is an Equal Opportunity Employer. We value a diverse workforce. In support of our Employment Equity Program, we encourage women, aboriginal people, members of visible minorities, and/or persons with disabilities to apply and self-identify in the application process.
Network & Infrastructure Engineer
Posted today
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Position We are seeking an experienced Infrastructure Engineer to join our IT team and manage the hospital's IT infrastructure.
The Infrastructure Engineer will be responsible for maintaining and optimizing servers, networks, storage systems, and other critical IT infrastructure components to ensure the seamless operation of hospital systems and applications.
Responsibilities Install, configure, and maintain servers, including physical and virtual servers, to support hospital operations.
Monitor server performance, troubleshoot issues, and perform routine maintenance tasks to ensure optimal server performance, and uptime.
Manage and maintain network infrastructure, including switches, routers, firewalls, and wireless access points, to ensure secure and reliable connectivity.
Implement and maintain storage solutions, such as SAN and NAS systems, to efficiently store and manage hospital data.
Collaborate with other IT team members to design and implement backup and disaster recovery solutions to protect critical hospital data.
Provide technical support and assistance to hospital staff and end-users to resolve IT-related issues and ensure smooth operation of hospital systems.
Conduct regular security audits and implement security best practices to protect hospital IT infrastructure from cyber threats and breaches.
Stay informed about emerging technologies and trends in IT infrastructure management and recommend innovative solutions to improve hospital IT operations.
Document IT infrastructure configurations, procedures, and troubleshooting steps to maintain accurate and up-to-date documentation.
Participate in IT projects and initiatives, such as system upgrades and migrations, to support hospital growth and development.
Qualifications Bachelor's degree in Computer Science, Information Technology, or related field.
Proven experience as an Infrastructure Engineer or similar role, preferably in a healthcare or hospital setting.
Strong technical knowledge of server, network, and storage technologies, including Windows and Linux servers, Cisco networking equipment, and SAN/NAS storage systems.
Hands-on experience with virtualization technologies, like VMware.
Excellent troubleshooting and problem-solving skills, with the ability to diagnose and resolve complex IT issues.
Good understanding of IT security principles and best practices.
Strong communication and interpersonal skills, with the ability to effectively collaborate with team members and stakeholders.
Relevant certifications, such as MCSE, CCNA, or CompTIA Network+, are a plus.
About Asian Heart Institute Asian Heart Institute is India's #1 cardiac hospital dedicated to incorporating the latest technological advances and ethical practices to provide quality heart care at reasonable costs.
As a JCI, NABH, and ISO-accredited hospital with a staggering success rate of 99.83% in bypass surgeries and an overall 99.4% in cardiac surgeries, we are considered among the best globally.
Our foundation rests firmly on four core pillars: Ethics, Experience, Excellence, and Expertise.
At the heart of our approach is a steadfast commitment to integrity and ethical practices, ensuring that every patient is treated with the highest level of respect and care.
We take pride in our team of renowned experts, each contributing years of specialized experience and skill, which is pivotal in driving our pursuit of excellence.
Our focus on expertise is not just about having the best professionals on board, but also about fostering continuous learning and staying ahead in our field.
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Network Infrastructure Manager
Posted 1 day ago
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Network Infrastructure Technician
Posted 1 day ago
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IP Network Infrastructure Engineer
Posted today
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About the job
We are seeking a highly skilled and versatile IP Network Infrastructure Engineer to join our dynamic and forward-thinking team to support a U.S.-based enterprise client . This role is ideal for professionals with deep experience in enterprise networking, cloud infrastructure (Azure), wireless technologies (Wi-Fi 6/6E), and virtualization (VMware).
You will be responsible for designing, deploying, and supporting complex hybrid infrastructures that span on-premises and cloud environments.
** ️ Immediate joiners only — please excuse if you cannot join immediately.**
Key Responsibilities
1. Network Design & Architecture
- Design and implement IP networking solutions .
- Architect scalable and secure hybrid cloud environments (Azure), including S2S VPNs, Virtual WAN, and Hub-and-Spoke models.
- Design and implement Wi-Fi 6E wireless solutions meeting enterprise standards for coverage, performance, and density.
- Build switching architectures with multigigabit access, 10/25 Gbps uplinks, and high-throughput MDF-to-core links.
2. Cloud & Virtualization
- Deploy and manage Microsoft Azure infrastructure: VMs, VNets, Azure Firewall, and NSGs.
- Automate infrastructure tasks using PowerShell, Azure CLI, or Terraform.
- Administer VMware vSphere environments including vCenter, ESXi, DRS, HA, and NSX.
- Manage VMware Horizon VDI environments and backup solutions (e.g., Veeam).
3. Wireless & Access Layer Engineering
- Lead the staging, configuration, and deployment of Cisco/Aruba access switches and Wi-Fi 6E APs.
- Implement VLAN, QoS, and security policies using Cisco ISE or Aruba ClearPass.
- Optimize SSID strategy and NAC integration for secure user/device access.
- Support VoIP/UC systems such as Cisco CUCM and Microsoft Teams Voice.
4. Monitoring, Security & Optimization
- Monitor and manage infrastructure via Cisco DNA Center, Aruba Central, or SolarWinds.
- Configure and maintain firewalls—hands-on experience with SonicWall is required .
- Ensure secure network operation using IDS/IPS, encryption, and access control policies.
- Conduct proactive troubleshooting and root cause analysis across network, cloud, and virtual layers.
5. Collaboration & Documentation
- Liaise with internal IT, security, and vendor teams for successful project execution.
- Provide comprehensive documentation, knowledge transfer, and mentorship to junior staff.
- Collaborate on large-scale integrations including Verizon systems and macro-level deployments.
Required Qualifications
- Education: Bachelor’s degree in Computer Science, IT, or related field (or equivalent experience).
- Certifications:
- CCIE (Routing & Switching) – Mandatory
- CCNP Enterprise – Required
- VMware Certifications (VCP-DCV, VCIX, or VCDX) – Preferred
- Azure Certifications (AZ-104, AZ-700, AZ-305) – Preferred
- SonicWall SNSP or equivalent – a plus
Technical Skills
- 7+ years of experience in enterprise networking and infrastructure engineering.
- Proven hands-on experience with:
- Cisco, Juniper, Arista, and SonicWall network platforms
- Microsoft Azure (VNets, VPNs, Firewalls)
- VMware (vSphere, NSX, Horizon, vMotion)
- Wi-Fi 6/6E deployment (Cisco, Aruba), site surveys (Ekahau)
- Cisco Catalyst 9000 Series, multigig PoE+ switches
- Network access control (Cisco ISE, ClearPass)
- Automation (PowerShell, Terraform, Python)
- VoIP/UC systems and QoS configurations
- Strong knowledge of SDN, micro-segmentation, VLANs, SGTs, ACLs
Soft Skills
- Strong analytical and problem-solving skills.
- Excellent documentation, communication, and project coordination.
- Ability to troubleshoot under pressure and manage complex technical projects.
Preferred Qualifications
- Multi-campus Wi-Fi 6E rollouts
- Cloud-managed networking models
- Zero-trust networking and modern identity-based access controls
- Migration of NAC systems (e.g., Cisco ISE to ClearPass)
Please send your resume and cover letter to .
We are hiring for immediate joiners only — please excuse if you cannot join immediately .
We look forward to reviewing your application.
Network Infrastructure Engineer - Telecoms
Posted today
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Key Responsibilities:
- Design, deploy, and manage network infrastructure, including routers, switches, firewalls, and load balancers.
- Ensure the reliability, scalability, and security of the company's network across all locations.
- Monitor network performance, identify bottlenecks, and implement solutions for optimization.
- Troubleshoot and resolve complex network issues in a timely manner.
- Develop and maintain network documentation, including configurations, diagrams, and procedures.
- Implement and manage network security measures to protect against threats.
- Plan and execute network upgrades and enhancements.
- Collaborate with systems administrators and other IT professionals to ensure seamless integration.
- Stay updated with the latest networking technologies and industry best practices.
Qualifications:
- Bachelor's degree in Computer Science, Information Technology, Telecommunications, or a related field.
- Minimum of 4 years of experience in network engineering, preferably within the telecommunications industry.
- In-depth knowledge of TCP/IP, routing protocols (BGP, OSPF), switching technologies, and network security.
- Experience with network monitoring tools (e.g., SolarWinds, Nagios).
- Familiarity with VPNs, firewalls, and network security best practices.
- Relevant certifications such as CCNA, CCNP, or equivalent are highly desirable.
- Strong analytical and problem-solving skills.
- Excellent communication and teamwork abilities.
- Ability to work effectively in a hybrid environment.
This is an exceptional opportunity to advance your career in the fast-paced telecom sector. Contribute to the backbone of our services and join our innovative team in Coimbatore, Tamil Nadu .
Senior Network Infrastructure Engineer
Posted today
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Key Responsibilities:
- Design, implement, and maintain scalable and reliable network infrastructure for telecommunications services.
- Configure and manage routers, switches, firewalls, and other network devices.
- Monitor network performance, identify bottlenecks, and implement optimization strategies.
- Troubleshoot and resolve complex network issues in a timely manner.
- Develop and enforce network security policies and procedures.
- Plan and execute network upgrades and new technology deployments.
- Collaborate with cross-functional teams to ensure seamless integration of network services.
- Conduct capacity planning and performance analysis to ensure network scalability.
- Develop and maintain comprehensive network documentation.
- Provide technical leadership and mentorship to junior network engineers.
Qualifications:
- Bachelor's degree in Computer Science, Engineering, or a related field.
- Minimum of 6 years of experience in network engineering and infrastructure management.
- Strong expertise in TCP/IP, routing protocols (BGP, OSPF), switching technologies, and network security.
- Hands-on experience with Cisco, Juniper, or other leading network hardware vendors.
- Proficiency in network monitoring and diagnostic tools (e.g., Wireshark, Nagios).
- Experience with cloud networking and virtualization technologies is a plus.
- Excellent problem-solving and analytical skills.
- Strong communication and interpersonal skills.
- Relevant certifications such as CCIE, CCNP, or JNCIE are highly desirable.
- Ability to work effectively in a hybrid work environment.