Linux System Engineer

6 days ago

Hyderabad, India ValueLabs Full time

We are seeking an experienced Linux Engineer to join our team, responsible for ensuring the stability, security, and performance of our Linux-based infrastructure. The ideal candidate will have hands-on experience with Linux OS patching, SSL, DNS, and SMTP. The position requires working on a night shift from 7:00 PM IST to 4:00 AM IST.


Key Responsibilities:

  • Monitor and maintain Linux-based servers and systems, ensuring optimal performance, security, and uptime.
  • Perform regular patching and updates of Linux operating systems, including kernel updates, security patches, and software updates.
  • Configure and manage SSL certificates, ensuring secure communication protocols and encryption.
  • Design, implement, and maintain DNS infrastructure, including zone files, DNS servers, and DNSSEC.
  • Configure and troubleshoot SMTP servers, ensuring reliable email communication and compliance with security standards.
  • Troubleshoot and resolve technical issues related to Linux systems, applications, and services.
  • Collaborate with the development team to ensure smooth integration of new applications and services with existing infrastructure.
  • Develop and maintain technical documentation, including installation guides, troubleshooting procedures, and knowledge base articles.
  • Participate in on-call rotation for after-hours support, providing timely and effective resolution of critical issues.
  • Stay up-to-date with the latest Linux distributions, security patches, and best practices, applying this knowledge to improve system security and performance.
  • Work closely with the team to identify and prioritize improvements to the infrastructure, proposing and implementing changes as needed.
  • Provide technical guidance and support to junior team members and other stakeholders.


Requirements:

  • Bachelor's degree in Computer Science, Information Technology, or related field.
  • At least 5+ years of experience in Linux system administration, with a focus on patching, SSL, DNS, and SMTP.
  • Strong understanding of Linux operating systems, including kernel configuration, file systems, and networking.
  • Experience with SSL/TLS certificate management, including certificate issuance, revocation, and renewal.
  • Knowledge of DNS protocols and DNS server software (e.g., BIND, PowerDNS).
  • Familiarity with SMTP protocols and email server software (e.g., Postfix, Sendmail).
  • Strong troubleshooting and problem-solving skills, with the ability to work independently and as part of a team.
  • Excellent communication and documentation skills, with the ability to explain complex technical concepts to non-technical stakeholders.
  • Experience with scripting languages (e.g., Bash, Python) and automation tools (e.g., Ansible, Puppet) is a plus.
  • Ability to work effectively in a 24/7 environment, including night shifts, and be available for on-call duties.
  • Strong attention to detail, with a focus on security, reliability, and performance.


Preferred Qualifications:

  • Red Hat Certified Engineer (RHCE) or equivalent certification.
  • Experience with cloud-based Linux environments (e.g., AWS, Azure, Google Cloud).
  • Knowledge of containerization technologies (e.g., Docker, Kubernetes).
  • Experience with DevOps tools and practices (e.g., CI/CD, version control systems).

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