Senior Linux Engineer

Phaxis; Atlanta (GA); On-site; USD 120,000 - 160,000; Full time

Job summary

Phaxis is seeking a Senior Engineer to build, operate, and continually improve Linux-based infrastructure platforms across on-premises and cloud. The role emphasizes Infrastructure as Code, automation, and cloud-native practices, with close collaboration across delivery teams and security functions.

The candidate will apply engineering judgment, resolve complex issues, and communicate technical concepts to stakeholders while guiding peers in best practices and platform standards.

Qualifications

• Experience administering Red Hat Enterprise Linux environments.
• Hands-on IaC and configuration management with Puppet, Git, Packer, Ansible, Terraform.
• Experience with CI/CD tools such as GitHub Actions and GitLab.
• Hybrid environment exposure with AWS infrastructure and services.
• Deploying, patching, and maintaining Linux servers and containers.
• Familiarity with container technologies and cloud SaaS/PaaS/IaaS platforms.
• Knowledge of security and identity platforms, PAM solutions integration.
• Experience designing Linux workloads on VMware/Nutanix virtualization.
• Familiarity with enterprise logging and observability platforms such as Splunk.

Responsibilities

• Engineering and supporting Unix/Linux platforms across on-premises and cloud environments using DevOps principles with minimal supervision.
• Building, maintaining, and enhancing IaC solutions using Puppet, Ansible, Terraform, and Git.
• Acting as a Unix/Linux subject matter expert within Agile delivery squads.
• Developing automation using Go, TypeScript to reduce manual effort and risk.
• Collaborating with application, cloud, and security teams to design secure, scalable Linux solutions.
• Ensuring systems meet security, regulatory, audit, and operational resilience requirements.
• Troubleshooting complex platform and infrastructure issues impacting business-critical services.
• Leading small technical initiatives or workstreams contributing to platform standards and improvements.

Skills

Unix/Linux administration

DevOps practices

Strong communication

RHEL administration

Tools

Puppet

Ansible

Terraform

Git

Packer

GitHub Actions

GitLab

Job description

Your Team The Infrastructure Platform Engineering team designs, builds, and supports the Linux and cloud platforms that power critical business services across the organisation. We work closely with application, security, and architecture teams to deliver secure, scalable, and resilient infrastructure. Operating within Agile and DevSecOps ways of working, the team focuses on automation, standardisation, and a cloud-first strategy. Our role is to balance innovation with the high reliability and compliance standards required in a regulated financial services environment.

Your Role As a Senior Engineer, you will be a hands-on technical contributor responsible for building, operating, and continually improving Linux-based infrastructure platforms. You will apply strong engineering judgment to implement Infrastructure as Code, automation, and cloud-native practices. This role requires deep technical expertise, the ability to resolve complex, non-routine issues independently, and close collaboration with delivery teams. You will exercise independent judgement on technical decisions and clearly communicate complex technical concepts to both technical and non-technical stakeholders, while providing informal technical guidance to peers.

You Will Be Responsible For:

• Engineering and supporting Unix/Linux platforms across on-premises and cloud environments using DevOps principles, with minimal supervision.
• Building, maintaining, and enhancing Infrastructure as Code solutions using tools such as Puppet, Ansible, Terraform, and Git.
• Acting as a Unix/Linux subject matter expert within Agile delivery squads, helping shape technical approaches and resolving non-routine platform challenges.
• Developing and maintaining automation using modern scripting and tooling languages (e.G., Go, TypeScript) to reduce manual effort and operational risk.
• Collaborating with application, cloud, and security teams to design and implement secure, reliable, and scalable Linux-based solutions.
• Ensuring systems are configured in line with security, regulatory, audit, and operational resilience requirements.
• Troubleshooting complex platform and infrastructure issues that impact business-critical services.
• Leading small technical initiatives or workstreams with manageable risk, contributing to platform standards, best practices, and continuous improvement.

The Experience You Bring:

• Strong enterprise-level experience administering and supporting Red Hat Enterprise Linux environments.
• Proven hands-on experience with Infrastructure as Code and configuration management tools (Puppet, Git, Packer;Ansible and Terraform preferred).
• Experience working with CI/CD pipeline tools (GitHub Actions, GitLab).
• Experience working in hybrid environments, with solid exposure to AWS infrastructure and services.
• Practical experience deploying, patching, and maintaining Linux servers and/or containers using native tooling (e.G., Red Hat Satellite).
• Familiarity with container technologies and cloud-based SaaS, PaaS, and IaaS platforms.
• Working knowledge of security and identity platforms, including Privileged Access Management (PAM) solutions such as the Delinea Cloud Suite and how they integrate with infrastructure platforms.
• Experience designing and supporting Linux workloads running on VMware, Nutanix, or equivalent virtualised environments.
• Familiarity with enterprise logging, monitoring, and observability platforms such as Splunk.