893 Ccna jobs in Bangalore

We are seeking a highly motivated Network and Cybersecurity Engineer with proven expertise in designing, implementing, and securing enterprise-level networks. The ideal candidate will hold a Cisco Certified Network Associate (CCNA) certification and have hands-on experience in network infrastructure, firewall configuration, incident response, and vulnerability management.

Key Responsibilities

• Design, configure, and maintain LAN, WAN, and VPN solutions to ensure high availability and reliability.
• Monitor network traffic and implement security controls to prevent unauthorized access, threats, and attacks.
• Configure and manage firewalls, IDS/IPS systems, and endpoint protection solutions.
• Perform vulnerability scans, risk assessments, and remediation to strengthen security posture.
• Respond to security incidents, troubleshoot network issues, and provide root cause analysis.
• Collaborate with IT teams to ensure compliance with organizational and regulatory security standards.
• Document network diagrams, configurations, and security policies.
• Stay updated with emerging threats, technologies, and cybersecurity frameworks (NIST, ISO 27001, etc.).

Qualifications

• CCNA Certification (Required).
• Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, or related field (or equivalent experience).
• 2–5 years of hands-on experience in networking and cybersecurity roles.
• Strong knowledge of routing, switching, TCP/IP, DNS, DHCP, VLANs, and VPN technologies.
• Experience with SIEM tools, firewalls (Cisco ASA, Palo Alto, Fortinet, etc.), and endpoint protection platforms.
• Expertise with Cisco Packet Tracer.
• Familiarity with cloud security (AWS, Azure, GCP) is a plus.
• Excellent problem-solving and communication skills.

What We Offer

• Fixed monthly salary and performance based incentive
• Opportunities for professional growth and certifications.
• A collaborative work environment that values innovation and security excellence.

We are seeking a highly motivated Network and Cybersecurity Engineer with proven expertise in designing, implementing, and securing enterprise-level networks. The ideal candidate will hold a Cisco Certified Network Associate (CCNA) certification and have hands-on experience in network infrastructure, firewall configuration, incident response, and vulnerability management.

Key Responsibilities

• Design, configure, and maintain LAN, WAN, and VPN solutions to ensure high availability and reliability.
• Monitor network traffic and implement security controls to prevent unauthorized access, threats, and attacks.
• Configure and manage firewalls, IDS/IPS systems, and endpoint protection solutions.
• Perform vulnerability scans, risk assessments, and remediation to strengthen security posture.
• Respond to security incidents, troubleshoot network issues, and provide root cause analysis.
• Collaborate with IT teams to ensure compliance with organizational and regulatory security standards.
• Document network diagrams, configurations, and security policies.
• Stay updated with emerging threats, technologies, and cybersecurity frameworks (NIST, ISO 27001, etc.).

Qualifications

• CCNA Certification (Required).
• Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, or related field (or equivalent experience).
• 2–5 years of hands-on experience in networking and cybersecurity roles.
• Strong knowledge of routing, switching, TCP/IP, DNS, DHCP, VLANs, and VPN technologies.
• Experience with SIEM tools, firewalls (Cisco ASA, Palo Alto, Fortinet, etc.), and endpoint protection platforms.
• Expertise with Cisco Packet Tracer.
• Familiarity with cloud security (AWS, Azure, GCP) is a plus.
• Excellent problem-solving and communication skills.

What We Offer

• Fixed monthly salary and performance based incentive
• Opportunities for professional growth and certifications.
• A collaborative work environment that values innovation and security excellence.

We are seeking a highly motivated Network and Cybersecurity Engineer with proven expertise in designing, implementing, and securing enterprise-level networks. The ideal candidate will hold a Cisco Certified Network Associate (CCNA) certification and have hands-on experience in network infrastructure, firewall configuration, incident response, and vulnerability management.

Key Responsibilities

• Design, configure, and maintain LAN, WAN, and VPN solutions to ensure high availability and reliability.
• Monitor network traffic and implement security controls to prevent unauthorized access, threats, and attacks.
• Configure and manage firewalls, IDS/IPS systems, and endpoint protection solutions.
• Perform vulnerability scans, risk assessments, and remediation to strengthen security posture.
• Respond to security incidents, troubleshoot network issues, and provide root cause analysis.
• Collaborate with IT teams to ensure compliance with organizational and regulatory security standards.
• Document network diagrams, configurations, and security policies.
• Stay updated with emerging threats, technologies, and cybersecurity frameworks (NIST, ISO 27001, etc.).

Qualifications

• CCNA Certification (Required).
• Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, or related field (or equivalent experience).
• 2–5 years of hands-on experience in networking and cybersecurity roles.
• Strong knowledge of routing, switching, TCP/IP, DNS, DHCP, VLANs, and VPN technologies.
• Experience with SIEM tools, firewalls (Cisco ASA, Palo Alto, Fortinet, etc.), and endpoint protection platforms.
• Expertise with Cisco Packet Tracer.
• Familiarity with cloud security (AWS, Azure, GCP) is a plus.
• Excellent problem-solving and communication skills.

What We Offer

• Fixed monthly salary and performance based incentive
• Opportunities for professional growth and certifications.
• A collaborative work environment that values innovation and security excellence.

Educational Requirements

Master of Computer Science,Master of Computer Management,MCA,Bachelor Of Computer Science,Bachelor Of Comp. Applications,BCA,Bachelor of Engineering,Bachelor Of Technology,Master Of Technology,Bachelor Of Science,Master Of Science

Service Line

Cloud & Infrastructure Services

Responsibilities

A day in the life of an Infoscion- As part of the Infosys consulting team, your primary role would be to get to the heart of customer issues, diagnose problem areas, design innovative solutions and facilitate deployment resulting in client delight.
- You will develop a proposal by owning parts of the proposal document and by giving inputs in solution design based on areas of expertise.
- You will plan the activities of configuration, configure the product as per the design, conduct conference room pilots and will assist in resolving any queries related to requirements and solution design
- You will conduct solution/product demonstrations, POC/Proof of Technology workshops and prepare effort estimates which suit the customer budgetary requirements and are in line with organizations financial guidelines
- Actively lead small projects and contribute to unit-level and organizational initiatives with an objective of providing high quality value adding solutions to customers. If you think you fit right in to help our clients navigate their next in their digital transformation journey, this is the place for you

Preferred Skills:

Network

DataCenter Transformation->Cisco UCS

Networking->Aruba

Networking->CISCO technologies->CISCO Routers/CISCO Switches

Generic Skills:

Networking

Networking->CISCO technologies

Job Description Summary

Nasdaq Technology is looking for a passionate
Systems and Network Administrator – Sr Specialist
with focus on Cisco network products and preferably an automation skillset to join the Bangalore technology center in India. If Innovation and effectiveness drive you forward this is the place for you

With this position we offer :

Join the NASDAQ Network Operations Team. The team provides excellent, first-level network support for European clients. They proactively monitor and respond to alerts and requests to ensure maximum uptime for Nasdaq's mission-critical exchange systems. The team is driven, passionate, high-energy, and highly motivated with diverse skill sets. The fast-paced work environment requires to take on tasks independently. It is crucial that you have the potential and drive to grow their craft. The team ensures the network complies with best practices, meets internal design criteria, and adheres to Information Security and Internal Audit guidelines. New ideas and improvements to processes and procedures to maximize efficiency and productivity are encouraged.

Your role and responsibilities :

• As a Systems and Network Administrator – Sr Specialist, your focus will be on supporting building and maintaining Nasdaq's networks.
• Initial Response and troubleshooting of HP Open View and other monitoring tool alarms.
• Work on various first level projects and tasks as required.
• Work closely with all Operations and Engineering teams to make sure that all network systems are available and working properly.
• Apply standardized LAN device configurations.
• Establish knowledge base, document standard config templates and standard operating procedures.
• Capturing and analyzing network sniffer data.
• Certifying new network gear is properly monitored through failure testing.
• Interfacing and providing feedback to network monitoring tools group.
• Maintain required spare hardware inventory at proper code revision levels in burn-in.
• Open hardware and software cases with network vendors (Cisco).

We expect you to have :

• At least
  8-11 years of experience in Network Administration along with automation and system administration skills.
• Good understanding of automation background.
• Must have any of the
  Cisco certification, preferred is CCNA.
• Should be very organized and detail oriented, with high degree of accuracy and follow-up.
• Excellent written and verbal communication skills.
• Must possess desire to learn new technologies.
• Strong understanding of network concepts, TCP/IP stack and common Internet protocols.
• Ability to work in collaborative high pressure environment.
• Development and audit network system policies and procedures.
• Knowledge of financial trading systems and trade reporting methodologies including their general design, architecture, protocols, and the customer's access requirements is a plus.
• Bachelor's Degree in IT related field or equivalent qualification.

Additional Job Description

It would be great if you are:

• Proficient in Python is a plus
• Proficient with Ansible is a plus
• Basic AI skills
• Work exeriance in NOC enveronment
• Obtained at least one CCNP certification is a plus
• Basic F5 (BIG IP) and Citrix netscalarknowledge

Does it sound like you?

As the selection process is ongoing, please submit your application in English as soon as possible. We will get back to you in 2-3 weeks.

Job Description

Role: Tier T1.5 Support for AT&T GCSC Teams

Responsibilities:

Technical Skills:

Professional Skills:

Years of Experience

1-3+ Years

Education

BE/B.TECH + CCNA/CCNP certified.

Weekly Hours:

Time Type:

Location:

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

Your role

As a Systems and Network Administrator – Sr Specialist, your focus will be on supporting building and maintaining Nasdaq’s networks.

We expect you to have :

It would be great if you are:

Does it sound like you?

As the selection process is ongoing, please submit your application in English as soon as possible. We will get back to you in 2-3 weeks.

Position Overview

We are looking for a skilled
L2 Network Engineer with System Administration expertise
to join our IT infrastructure team. The ideal candidate will be responsible for supporting, maintaining, and troubleshooting network operations while also handling system administration tasks for servers, storage, and related infrastructure. This role requires a balance of
networking knowledge and system admin experience
to ensure high availability, security, and performance of enterprise IT systems.

Key Responsibilities
Network Engineering

• Monitor, troubleshoot, and support Layer 2 (switching) and Layer 3 (routing) network infrastructure.
• Configure and maintain network devices such as switches, routers, firewalls, and wireless access points.
• Handle VLANs, trunking, STP, port security, and link aggregation.
• Assist in escalated issues from L1 engineers and coordinate with vendors if required.
• Perform periodic network health checks, patching, and firmware upgrades.
• Document network topologies, configurations, and standard operating procedures.

System Administration

• Administer Windows/Mac systems Active Directory, DNS, DHCP, and group policies.
• Perform user account management, access control, and security policy enforcement.
• Maintain virtualization platforms (VMware/Hyper-V/KVM) and cloud-based environments.
• Monitor server performance, storage, and backups, ensuring business continuity.
• Apply OS patches, updates, and security hardening.
• Support troubleshooting of applications and system-level issues escalated from L1.

Collaboration & Support

• Work closely with L1 engineers, providing guidance and training where needed.
• Coordinate with cross-functional teams to support IT projects and deployments.
• Create and maintain documentation for both network and system processes.
• Participate in on-call rotations for critical issues.

Required Skills & Qualifications

• Bachelor's degree in Computer Science, IT, or related field (or equivalent experience).
• 3–5 years of experience in networking and system administration roles.
• Strong understanding of L2/L3 networking (VLANs, STP, OSPF, BGP, TCP/IP, QoS).
• Hands-on experience with Cisco/Juniper/HP/Aruba switches and routers.
• Proficiency in Windows/Mac system administration.
• Knowledge of virtualization (VMware, Hyper-V, or similar).
• Familiarity with monitoring tools (Nagios, SolarWinds, Zabbix, etc.).
• Scripting knowledge (PowerShell, Bash, or Python) is a plus.