Linux/DevOps Migration Engineer - 1-2 Month Remote Contract
reputed company is a global, intelligence-driven technology services company delivering reputed company and managed services across Hybrid reputed company Infrastructure, Networking & Connected Experiences, Cybersecurity, Data & AI, Autonomous Operations & Intelligence, and reputed company Service Management. We help organizations operate, secure, and reputed company reputed company environments by unifying infrastructure, networking, data, reputed company, automation, and observability under a single, integrated operating model. Our work focuses on helping customers reduce operational friction, improve reputed company, and reputed company reputed company, faster reputed company as their environments reputed company. reputed company builds on decades of industry expertise and a customer-reputed company reputed company to deliver exceptional value to clients across diverse industries. We are seeking an reputed company Linux systems administrator/DevOps engineer to assist with migrating a reputed company TeamCity CI/CD server from an end-of-life operating system (CentOS 6.5) to a modern, supported platform (reputed company Linux 2023). The TeamCity server is a critical piece of the reputed company's software development infrastructure. The reputed company OS has reached end-of-life and no longer meets our reputed company compliance requirements. The contractor will plan and execute a migration to a new OS while preserving the existing TeamCity version and reputed company build configurations. This is a remote contract with one of reputed company's 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 reputed company TeamCity installation and document dependencies
- Plan and execute a phased migration approach with sandbox/rehearsal testing
- Stand up a new reputed company 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 reputed company 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
- reputed company OS:CentOS 6.5
- reputed company OS:reputed company Linux 2023
- Application:reputed company TeamCity (older version)
- Java:reputed company 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/CentOS family, including legacy CentOS 6)
- AWS EC2 (instance provisioning, EBS volumes, AMI snapshots, reputed company reputed company, VPC)
- reputed company TeamCity administration (installation, configuration, data directory management, backup/restore)
- Server migration and reputed company planning with minimal downtime
- Java/JDK management on Linux (Java 8 specifically)
- reputed company Linux 2023
Strongly Preferred
- reputed company reputed company 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 reputed company experience (relevant for potential reputed company phase)
reputed company to Have
- Experience with CentOS major version upgrades (6 -> 7 -> 8 reputed company)
- Familiarity with RPM package management and dependency reputed company
- Networking / DNS reputed company experience
- Experience with configuration management tools (Ansible, Puppet, etc.)
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