LinuxDevOps Migration Engineer 1-2 Month Remote Contract

Arctiq is a global intelligence-driven technology services company delivering professional and managed services across Hybrid Cloud Infrastructure Networking & Connected Experiences Cybersecurity Data & AI Autonomous Operations & Intelligence and Enterprise Service Management. We help organizations operate secure and modernize complex environments by unifying infrastructure networking data security automation and observability under a single integrated operating model. Our work focuses on helping customers reduce operational friction improve resilience and make better faster decisions as their environments evolve. Arctiq builds on decades of industry expertise and a customer-centric ethos to deliver exceptional value to clients across diverse industries.

We are seeking an experienced Linux systems administrator/DevOps engineer to assist with migrating a JetBrains TeamCity CI/CD server from an end-of-life operating system (CentOS 6.5) to a modern supported platform (Amazon Linux 2023).

The TeamCity server is a critical piece of the clients software development infrastructure. The current OS has reached end-of-life and no longer meets our security compliance requirements. The contractor will plan and execute a migration to a new OS while preserving the existing TeamCity version and all build configurations.

This is a remote contract with one of Arctiqs clients. This will be a (1) month 40 hour week contract or a (2) month 20 hour week contract based on preference of candidate.

Scope of Work

• Assess the current TeamCity installation and document dependencies
• Plan and execute a phased migration approach with sandbox/rehearsal testing
• Stand up a new Amazon Linux 2023 EC2 instance with TeamCity
• Migrate the TeamCity data directory (400 GB) to the new server
• Configure Apache httpd as a reverse proxy with SSL termination
• Validate all build configurations remote build agents and integrations
• Coordinate with internal IT on network/VPC changes
• Document the migration process and any configuration changes

Environment

• Platform:AWS EC2
• Current OS:CentOS6.5
• Target OS:Amazon Linux 2023
• Application:JetBrains TeamCity (older version)
• Java:Oracle JDK 1.8 (Java 8)
• Database:MySQL (hosted on separate server not part of migration scope)
• Web Server:Apache httpd (reverse proxy)
• Data Volume:400 GB

Required Skills and Experience

• Linux system administration (RHEL/CentOSfamily including legacyCentOS6)
• AWS EC2 (instance provisioning EBS volumes AMI snapshots security groups VPC)
• JetBrains TeamCity administration (installation configuration data directory management backup/restore)
• Server migration and cutover planning with minimal downtime
• Java/JDK management on Linux (Java 8 specifically)
• Amazon Linux 2023

Strongly Preferred

• CrowdStrike Falcon agent deployment on Linux
• Bash scripting for migration automation
• MySQL database administration
• CI/CD pipeline design and TeamCity build configuration
• Apache httpd configuration (reverse proxy SSL)
• TeamCity upgrade experience (relevant for potential future phase)

Nice to Have

• Experience withCentOSmajor version upgrades (6 -> 7 -> 8 path)
• Familiarity with RPM package management and dependency resolution
• Networking / DNS cutover experience
• Experience with configuration management tools (Ansible Puppet etc.)

Required Experience:

Senior IC