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Linux System Administrator
Linux System Administrator
Wissen Technology's logo

Linux System Administrator

Annie Varghese's profile picture
Posted by Annie Varghese
4 - 8 yrs
Best in industry
Pune, Bengaluru (Bangalore)
Skills
Red Hat Enterprise Linux
IDM
LDAP
FreeIPA
Active Directory

Role Overview

We are looking for a Linux Engineer with strong expertise in Red Hat Enterprise Linux (RHEL) and Identity Management (IdM) to manage centralized authentication, access control, directory services, and secure identity operations across Linux systems.

Key Responsibilities

  • Install, configure, and maintain Red Hat Identity Management (IdM) / FreeIPA.
  • Manage identity lifecycle: users, groups, roles, sudo rules, HBAC policies.
  • Configure and troubleshoot SSSD, LDAP, Kerberos, and PAM authentication.
  • Integrate Linux servers with Active Directory using trusts or SSSD.
  • Manage DNS, certificates (Dogtag CA), and multi-master replication within IdM.
  • Join and enroll Linux hosts into the IdM domain.
  • Automate identity operations using Ansible and shell scripting.
  • Troubleshoot authentication/login issues across servers and applications.
  • Work closely with security and platform teams to enforce IAM/IAP policies.

Required Skills

  • Strong RHEL/Linux administration skills.
  • Hands-on experience with RedHat IdM / FreeIPA.
  • Deep understanding of LDAP, Kerberos, SSSD, DNS, and PKI.
  • Experience integrating Linux with AD.
  • Shell scripting; Ansible automation experience.

Good to Have

  • Exposure to Okta, Azure AD, Keycloak, or other IAM platforms.
  • Cloud (AWS/Azure/GCP) experience.
  • Security hardening knowledge.


Note: One technical round is mandatory to be taken either from Baner, Pune or Bellandur, Bangalore office.

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About Wissen Technology

Founded :
2000
Type :
Products & Services
Size :
1000-5000
Stage :
Profitable

About

The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.

With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.


Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.


We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).


Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.


Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.

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Our Commitment to Building A Diverse and Inclusive Workforce

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