Position: System Administrator
Company: 4limes
Experience required: 3y
Category: Sysadmin
English level: upper
Published: 2023-01-01T00:00:00+02:00

We are seeking a senior system administrator to manage and monitor our AWS cloud infrastructure. You will be collaborating with the engineering team to recommend solutions, improve performance, enforce security, and resolve issues.

Main Duties and Responsibilities

Collaborate with stakeholders to understand cloud infrastructure requirements and deliver high-quality solutions.

Be responsible for cloud infrastructure security, enforcement of roles and permissions, regular security audits, ensuring secure storage and transmission of data. 

Be responsible for cloud performance monitoring and optimization, uptime maintenance, and outage response and escalation.

Support engineering team on effectively using AWS services; drive cloud architecture adoption throughout the organization.

Support DevOps by building and maintaining CI/CD pipelines.

Support core services - databases (MySQL/RDS), application servers (tomcat), web servers (apache, nginx, pound), cache (redis, memcache), Openvpn, etc.

Support/maintain/monitor/stand-up/backup Linux Servers (physical and virtual).

Support/maintain firewalls using iptables, Cisco IOS and general security.

Networking IPSec tunnels (openswan, AWS, Cisco).

Maintain development, QA and production environments (Jenkins, K8S).

Qualifications and Skills

Ability to communicate and coordinate with various team members frequently and relentlessly to achieve engineering objectives.

Ability to troubleshoot difficult issues and work towards root cause analysis and resolution.

Experience with using scripting languages or high-level programming languages, including bash, PowerShell, Python, or Node.

Experience with Kubernetes and containerized architectures.

Experience with database administration and maintenance.

A positive, 'can-do' attitude.

The ability to work autonomously.

Complete ownership of tasks and responsibilities.

3+ years of Linux system administration.

3+ years of experience with AWS.