Senior Network Engineer

Cambio Consulting India Pvt Ltd
  • Bangalore
  • 10-15 lakh
  • 4-8 years
  • 29 Jan 2015

  • IT/ Information Technology

  • IT/ Technology - Software/ Services
Job Description

This will be purely telephonic support for US customer ( PST Time Zone)
Troubleshoot advanced issues from the customers.
Assist / Handle Network Engineers on their cases
The above includes
1. Clearpass service failure due to DB crashes: Investigate radius and policy server logs to identify the reason for DB crashes. Analyze clearpass server logs to isolate the issue. The DB crashes could be due to high number of authentication requests hitting a single server. Hence need to determine if the server is being overloaded and need to suggest load balancing or load optimization solutions. Need to verify if the services are configured in an optimal manner and sometimes need to re-organize the services or the authentication sources to reduce the policy evaluation time.

2. Investigate timeouts of persistent sessions in external firewalls causing Clearpass queries to external authentication servers to time out. Clearpass communicates with external authentication sources like external SQL servers, Token servers, Active Directory etc. Sometimes these auth sources are across the WAN and have firewalls in between which could have restrictions on how long persistent connections are enabled. Need to analyze the log files and find if the authentication queries from clearpass are timing out and need to tweak the configurable timeouts in clearpass.

3. Setup clearpass cluster spread over multiple sites: Assist in deploying clearpass clusters across the WAN. Some deployments require that the config replication be contained within certain geographic zones. This can be accomplished using Policy Manager Zones. Clearpass clusters with more than 2 servers could have multiple virtual IPs. Need to troubleshoot issues with clearpass failover and VIP configuration

4. Troubleshoot Onboard/Onguard failover: In global clearpass deployments, customers would have onboard and onguard configured and these modules also have to fail over to a standby publisher node in case of a publisher failure. This would require ensuring that the certificate trust relationship is also valid in the standby publisher node.

Required Knowledge / Skills and Abilities:

A graduate from any discipline with good communication, logical and analytical skills with an experience of 4 to 8 years. The following skills are required from a Senior Network Engineer:
Linux: Advanced Linux Concepts & Commands, Working on VI Editors, Advanced Scripting
Programming Languages : Linux, Javascript, PHP, PostgreSQL, HTML & CSS
Certifications: RHCE, CCSP, CISSP & CCSA
Applications : Juniper Steel Belt RADIUS, Microsoft IAS & NPS servers, Free RADIUS, Netscape
LDAP / Open LDAP, RSA Server, Ethereal & NetStumbler
Advanced SNMP Concepts:

This will be purely telephonic support for US customer ( PST timezone)
Troubleshoot advanced issues from the customers.
Assist / Handle Network Engineers on their cases
Provide knowledge base articles on a weekly basis
Work with Engineering to file defects and ensure close looping with customer

Competencies/Skill sets for this job

Support Html Servers Linux Policy Radius Wan Firewalls

Job Posted By

About Organisation

Cambio Consulting India Pvt Ltd