Senior Linux System Engineer

Xtremepush Limited; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Xtremepush Limited is seeking a Senior Linux System Engineer to join our infrastructure team. You will help shape AWS/cloud best practices, implement secure and reliable systems, and work across internal Ops, clients, and vendors.

The role is highly collaborative, with on-call rotation and end-to-end ownership of production, staging, and development environments. Strong scripting and client-facing communication are essential.

Qualifications

• 7+ years of Linux system administration supporting production environments (Debian or derivatives a plus).
• Scripting ability in at least one language (Bash, Python, or PHP).
• Solid understanding of the LAMP/LEMP stack.
• Experience with networking and security concepts.
• Experience deploying and debugging complex applications.
• MySQL database administration experience.
• Experience managing mail servers (PowerMTA), mail deliverability, and troubleshooting.
• Experience with cloud-based services and virtualization.
• Confident in engaging directly with clients and explaining technical issues to non-technical audiences.

Responsibilities

• Maintain and scale production infrastructure with the Operations team.
• Install, monitor, and maintain hardware and software across environments.
• Write scripts to automate jobs and processes.
• Own the security, stability, and uptime of production, staging, and development environments.
• Monitor systems and respond to alerts day-to-day.
• Take part in an on-call rota for priority-1 alerts.
• Maintain network, server, and storage assets across cloud environments.
• Drive upgrades and improvements to infrastructure and processes.
• Contribute to planning releases and configuration changes.
• Act as a technical contact for internal teams, clients, and vendors.

Skills

Linux system administration

Scripting: Bash/Python/PHP

LAMP/LEMP stack

Networking and security concepts

MySQL administration

PowerMTA mail server

Cloud/virtualisation

Client communication

Tools

AWS

Zabbix

Grafana

Proxmox

Graylog

Datadog

ClickHouse

Job description

About the Role

We're looking for a Senior Linux System Engineer to join our infrastructure team as we scale a fast-growing, high-availability platform trusted by enterprise clients worldwide. You'll help define and implement AWS/cloud best practices, evaluate new approaches, and get hands-on with the implementation and continuous improvement of the systems that keep Xtremepush running securely and reliably at scale.

This is a highly collaborative role — you'll work closely with our Operations team internally, and you'll also engage directly with clients and third-party vendors, so comfort communicating technical detail clearly to non-technical and external stakeholders is essential.

We're looking for someone proactive and driven, who enjoys getting into the detail of complex, large-scale technical problems and seeing solutions through end to end.

Key Responsibilities

• Work closely with the Operations team to maintain and scale production infrastructure
• Install, monitor, and maintain hardware and software across our environments
• Write scripts to automate jobs and processes
• Own the security, stability, and uptime of production, staging, and development environments
• Monitor systems and respond to alerts as they arise day to day
• Take part in an on-call rota for priority-1 alerts alongside the rest of the Ops team
• Maintain network, server, and storage assets across our cloud environments
• Drive ongoing upgrades and improvements to infrastructure and processes
• Contribute to planning application and infrastructure releases and configuration changes
• Act as a technical point of contact for internal teams, clients, and third-party vendors — troubleshooting and resolving complex issues with clarity and confidence

Our Stack

AWS (EC2, RDS, ElastiCache, CloudFront, and more), LEMP stack, PowerMTA, pfSense, Zabbix, Grafana, Proxmox, Graylog, Datadog, Edgescan, ClickHouse

This is a hybrid role. #LI-Remote

Your Experience and Qualifications

• 7+ years' experience in Linux system administration supporting a production environment (Debian or derivatives a plus)
• Scripting ability in at least one language (Bash, Python, or PHP)
• Solid understanding of the LAMP/LEMP stack
• Experience with networking and security concepts
• Experience deploying and debugging complex applications
• MySQL database administration experience
• Experience managing mail servers (PowerMTA), mail deliverability, and troubleshooting
• Experience with cloud-based services and virtualisation
• Confidence engaging directly with clients — able to explain technical issues and solutions clearly to a non-technical audience

Location

This is a Remote role based in North America. #LI-Remote