What are the responsibilities and job description for the Senior Linux System Administrator position at Vista Applied Solutions Group Inc?
Our client is seeking a Senior Linux Engineer for a contract-to-hire role at their Houston, TX office.
Overview
We are looking for a seasoned technical leader to guide the design and administration of large-scale Linux-based environments. This position blends architectural planning with hands-on engineering, supporting a mission-critical server footprint and ensuring the stability, scalability, and security of core platforms. The ideal candidate has extensive Linux/Unix experience, strong cloud knowledge, and a track record of successfully delivering infrastructure projects in demanding operational settings.
Primary Responsibilities
Infrastructure Engineering & Design
- Develop end-to-end infrastructure solutions for enterprise workloads using Linux/Unix technologies.
- Create long-term roadmaps supporting modernization, cloud adoption, platform upgrades, and hybrid integrations.
- Ensure system designs meet high requirements for resiliency, security, compliance, and performance.
Platform Engineering & Operations
- Oversee day-to-day oversight, upkeep, and optimization of a large fleet of Linux servers.
- Troubleshoot complex issues affecting availability, performance, or capacity in fast-paced operational environments.
- Build automation frameworks for provisioning, patching, deployment, and configuration using tools such as Terraform and Ansible.
Technical Program & Project Leadership
- Lead infrastructure initiatives from planning through execution, managing schedules, risks, resources, and communications.
- Coordinate across engineering, operations, and business teams to ensure alignment with organizational objectives.
- Deliver project outcomes that meet scope, timelines, and operational needs.
Leadership & Team Development
- Provide mentorship and guidance to Linux administrators and engineers.
- Encourage a high-performing culture dedicated to reliability, responsiveness, and continuous improvement.
- Support incident management activities with expert-level troubleshooting and decision-making.
Cloud & Hybrid Environments
- Implement and support cloud solutions using major providers, including Oracle Cloud and other hyperscale environments.
- Evaluate cloud capabilities and recommend optimal placements for workloads based on cost, performance, and security needs.
- Design connectivity and hybrid cloud strategies that integrate on-prem and cloud resources seamlessly.
Security & Governance
- Ensure platforms adhere to security best practices, including hardening, privileged access management, and compliance controls.
- Work with internal teams to maintain audit readiness and meet regulatory, industry, and corporate standards.
Required Background
- Degree in a technology-related discipline or equivalent professional experience.
- 10 years working with Linux/Unix systems in both engineering and architectural capacities.
- Experience supporting environments with hundreds of servers or similarly large deployments.
- Hands-on experience with Oracle Cloud and familiarity with AWS or Azure.
- Proficiency in automation, scripting, and infrastructure-as-code (Terraform, Ansible, Python, Shell/Bash).
- Strong understanding of networking, virtualization, storage, and high-availability architectures.
- Demonstrated experience leading technical teams and supporting high-stakes, always-on environments.
Preferred Background
- Relevant cloud certifications (OCI, AWS, Azure).
- Experience with container platforms such as Kubernetes.
- Knowledge of clustering, disaster recovery strategies, and performance tuning.
- Project management credentials (e.g., PMP or similar).
- Strong communication skills and comfort engaging with stakeholders at all levels.
Salary : $60 - $78