bits&BYTE; is a network and digital integrator delivering secure, scalable, and high-performance ICT solutions for enterprise customers. The company helps organisations modernise, secure, and scale IT environments through networking, cloud infrastructure, cybersecurity, managed services, SD-WAN, global connectivity, virtualisation, storage, backup, databases, messaging, collaboration, and remote infrastructure support.

The company serves enterprises across India, Singapore, the Middle East, and Africa with capabilities across 24×7 network and security monitoring, multi-region operational presence, certified engineering teams, deep telecom and cloud integration expertise, and end-to-end ICT lifecycle ownership.

Role Summary

We are seeking a NAC Expert / Network Access Control Engineer with 2–3 years of hands-on experience in Network Access Control, network security, authentication, and endpoint access management.

The ideal candidate should have practical experience in configuring, implementing, monitoring, and troubleshooting NAC solutions in enterprise network environments. The candidate will work closely with network, security, infrastructure, and customer teams to ensure secure and controlled access to wired and wireless networks.

Experience with NAC platforms such as Cisco ISE, Aruba ClearPass, FortiNAC, or Forescout will be preferred.

Key Responsibilities1. Network Access Control· Configure, implement, and maintain Network Access Control solutions.· Manage network access policies for users, endpoints, devices, and different network segments.· Configure authentication and authorisation policies based on organisational requirements.· Support secure access for corporate, guest, BYOD, and IoT devices.· Monitor NAC environments and ensure access policies are functioning as expected.

2. 802.1X & Authentication

· Configure and troubleshoot 802.1X authentication for wired and wireless networks.

· Work with RADIUS, TACACS+, LDAP, and Active Directory authentication.

· Troubleshoot authentication failures and endpoint access issues.

· Work with certificates and authentication methods such as EAP-TLS.

· Support user and device-based authentication policies.

3. NAC Implementation & Configuration

· Configure NAC policies, profiles, authentication rules, authorisation rules, and endpoint classifications.

· Perform endpoint profiling and device identification.

· Configure VLAN assignment and role-based access policies.

· Support NAC deployments across enterprise network environments.

· Assist with NAC upgrades, migrations, policy changes, and implementation activities.

4. Network Troubleshooting

· Troubleshoot network access and authentication-related issues.

· Analyse NAC logs and identify the root cause of access failures.

· Troubleshoot VLAN, DHCP, DNS, RADIUS, and connectivity-related issues.

· Work with network switches, wireless controllers, firewalls, and other network infrastructure.

· Coordinate with internal teams and customers to resolve technical issues.

5. Network Security· Implement network access policies based on security requirements.· Support endpoint compliance and posture assessment.· Identify unauthorised or non-compliant devices attempting to access the network.· Assist in implementing segmentation and role-based network access.· Support security monitoring and incident investigation related to network access

6. NAC Integration

Integrate NAC solutions with:

- Active Directory
- RADIUS
- LDAP
- DHCP
- DNS
- Network Switches
- Wireless Controllers




- Firewalls
- SIEM / Security Monitoring Platforms
- Endpoint Security Platforms

7. Customer & Project Support

· Work with customers during NAC implementation and troubleshooting activities.

· Participate in deployment, configuration, testing, and documentation.

· Understand customer requirements and translate them into NAC policies.

· Provide technical support during implementation and post-deployment activities.

· Coordinate with OEMs and technology partners when required.

8. Monitoring & Reporting

Monitor and report:

- Authentication failures
- Endpoint onboarding status
- Unauthorized devices
- NAC incidents
- Policy violations
- Endpoint profiling
- Network access issues
- System health and availability

Prepare technical reports and maintain appropriate NAC documentation.

9. Documentation

· Maintain NAC configuration documentation.

· Document network access policies and authentication flows.

· Prepare implementation and troubleshooting guides.

· Maintain network diagrams and configuration records.

· Ensure technical documentation is updated following changes or deployments.

10. Team Collaboration

· Coordinate with Network, Security, Server, Cloud, and IT Infrastructure teams.

· Work with OEM technical support teams when required.

· Support senior engineers and technical managers during complex NAC implementations.· Participate in knowledge-sharing and technical training activities.

Required Skills

· Strong understanding of Network Access Control (NAC).

· Hands-on experience with at least one NAC platform:

· Cisco ISE

· Aruba ClearPass

· FortiNAC

· Forescout

· Good understanding of 802.1X authentication.

· Knowledge of RADIUS and TACACS+.

· Knowledge of Active Directory and LDAP.

· Understanding of TCP/IP, VLAN, DHCP, DNS, switching, and routing.

· Knowledge of wired and wireless network authentication.

· Experience in troubleshooting authentication and network access issues.

· Understanding of endpoint profiling and device classification.

· Basic understanding of network security concepts.

· Good analytical and troubleshooting skills.

· Excellent communication and coordination skills.

Preferred Experience

· 2–3 years of experience in NAC / Network Security / Network Engineering.

· Hands-on experience with Cisco ISE or Aruba ClearPass.

· Experience working with enterprise network environments.

· Experience with wired and wireless 802.1X implementation.

· Experience integrating NAC with Active Directory and RADIUS.

· Experience with endpoint profiling and posture assessment.

· Knowledge of Cisco switching and wireless infrastructure.

· Experience working in customer-facing implementation or support environments.

· Relevant networking or security certifications will be an added advantage.

Key Deliverables

Deliverable

Expected Frequency

Purpose

NAC Monitoring

Daily

Ensure NAC availability and proper functioning

Authentication Troubleshooting

As Required

Resolve user/device access issues

NAC Policy Management

As Required

Maintain secure network access

Endpoint Profiling

As Required





Identify and classify network devices

NAC Configuration Documentation

As Required

Maintain accurate technical records

Incident Resolution

As Required

Resolve NAC and authentication incidents

Customer Support

As Required

Support NAC implementation and operations

NAC Health Report

Monthly / As Required

Monitor system performance and issues

Qualification

· Bachelor's degree in Computer Science, Information Technology, Electronics, Networking, or a related field.

· Certifications such as CCNA, CCNP, Cisco ISE, Aruba ClearPass, Fortinet, or equivalent will be an added advantage.

· Relevant hands-on NAC experience will be given preference.

Desired Candidate Profile

The ideal candidate should be a technically strong and hands-on NAC / Network Security Engineer with good troubleshooting capabilities and a strong understanding of enterprise network access control.

The individual should have practical experience with 802.1X, RADIUS, Active Directory, VLANs, endpoint profiling, and NAC policy management, along with the ability to work effectively with customers and cross-functional technical teams.

The candidate should demonstrate a willingness to learn current security technologies, take ownership of technical issues, and support enterprise NAC implementation and operational requirements.

Compensation

· As per industry standards and based on experience.

· Performance-linked growth based on technical skills, project contribution, customer satisfaction, and overall business contribution.

Brief Job Posting Version

bits&BYTE; is hiring a Digital Marketing Manager (ICT Industry)

We are looking for a NAC Expert with 2–3 years of experience in Network Access Control and Network Security. The role involves configuring, implementing, monitoring, and troubleshooting NAC solutions, 802.1X authentication, RADIUS, Active Directory, endpoint profiling, network access policies, and enterprise network security environments.

Experience with Cisco ISE, Aruba ClearPass, FortiNAC, or Forescout will be preferred.

Experience

2–3 years

Location

Bangalore

Preferred Industry

ICT / Cybersecurity / Networking / Managed Services

Skills Required

NAC, Cisco ISE / Aruba ClearPass, 802.1X, RADIUS, TACACS+, Active Directory, LDAP, VLAN, DHCP, DNS, TCP/IP, network troubleshooting, endpoint profiling, network security, and enterprise network access control.

Reference Basis

· This JD is aligned to public information available on the bits&BYTE; website, including services across managed services, cloud infrastructure, virtualisation, cybersecurity, storage and backup, SD-WAN as a Service, global connectivity, and network infrastructure services.

· The JD also reflects the company’s public positioning around secure digital transformation, global enterprise support, 24×7 monitoring, certified engineering teams, and end-to-end lifecycle ownership.

Pay: ₹400,000.00 - ₹1,000,000.00 per year

Benefits:

- Flexible schedule
- Leave encashment
- Paid sick time
- Paid time off
- Provident Fund

Ability to commute/relocate:

- Bangalore City, Bengaluru, Karnataka: Reliably commute or planning to relocate before starting work (Preferred)

Application Question(s):

- Do you have strong understanding of Network Access Control (NAC)
- Do you have knowledge in FotiNAC?

Education:

- Bachelor's (Preferred)

Language:

- English (Preferred)

License/Certification:

- CCNA (Preferred)

Location:

- Bangalore City, Bengaluru, Karnataka (Preferred)

Work Location: In person

📌 NAC Engineer (India)
🏢 Bits&BYTE
📍 India