Senior Linux Systems Administrator

Convergent Science; Madison (WI); On-site; USD 72,000 - 88,000; Full time

Benefits offered by this job

401(k)

401(k) matching

Dental insurance

Employee assistance program

Employee discount

Flexible spending account

Health insurance

Health savings account

Life insurance

Paid time off

Parental leave

Referral program

Vision insurance

Job summary

Convergent Science, a rapidly growing CFD software company, seeks a Senior Linux Systems Administrator for its Madison, WI headquarters. You will provision and maintain Linux servers across offices, manage networking, NFS/Samba, and HPC cluster storage, and support Linux desktops in a collaborative team.

The role emphasizes initiative and independent problem solving in a fast-evolving HPC environment. Ideal candidates have 5 years of Linux administration experience, a relevant degree, and the

Qualifications

• 2- or 4-year degree preferred in CS/Engineering or related field
• 5 years of experience in Linux systems administration
• Onsite in Madison, WI with lifting <50 lbs possible

Responsibilities

• Provision, maintain, and troubleshoot Linux servers across headquarters and offices
• Manage network infrastructure: switches, VLANs, routing, VPNs
• Administer Network File Storage systems and backups
• Maintain the 10,000-core HPC cluster and storage
• Support Linux desktops and user environments

Skills

Linux system administration

Networking

Scripting

Education

Bachelor or 2/4-year degree in CS/Engineering

Tools

RHEL derivatives

Ubuntu

VMware

Proxmox

Ansible

GitLab

Job description

Full job description

Convergent Science is a rapidly growing computational fluid dynamics (CFD) company. Our flagship product, CONVERGE, is a state-of-the-art CFD software suite used by industry and research organizations around the world to simulate turbulent reacting flows in complex geometries. Convergent Science is headquartered in Madison, Wisconsin, USA, with additional offices in the USA, Europe, and India.

Position Overview

We are seeking a Senior Linux Systems Administrator for our headquarters in Madison, WI. While this role has a wide variety of duties, the primary responsibility will be provisioning and maintaining various Linux based servers and other infrastructure across our headquarters in Madison, as well as our 3 U.S. offices and 2 branch offices abroad.

The Madison office also hosts an HPC cluster of roughly 10,000 cores with a mix of CPUs and networking, along with over a petabyte of various storage systems. We don’t expect any HPC system administration experience, but this is a great opportunity to expand your IT experience in a fast-growing, ever-evolving industry where we support some of the most cutting‑edge research and software development in HPC.

The Senior Linux Systems Administrator will be joining a team of four other system administrators, including the IT Manager, to whom this position will report. All IT personnel are located in the Madison office, and we’re looking for a candidate who will hit the ground running, fully supported by your fellow system admins in a team atmosphere. The ideal candidate will be able to take direction from management, but also be able to look at our environment, suggest changes, and take the initiative to see them through independently.

Responsibilities

• Linux system administration: provisioning new servers and maintaining, updating, and troubleshooting existing servers
• Network administration: setting up new switches, VLANs, routing, and VPNs, and troubleshooting networking issues
• Network File Storage administration
• Maintenance and expansion of our 10,000 core cluster
• Administration of our backup scheme
• Support and troubleshooting of our Linux desktops.

Specific technologies we use include

• Various switch operating systems: Mikrotik, Quanta, Dell, HP
• DHCP, DNS, routing, subnets, VLANs, VPN
• RHEL & derivatives (Rocky, CentOS, etc), Ubuntu
• Windows and Windows Server
• FreeIPA, LDAP, Active Directory
• NFS, Samba, BeeGFS
• VMWare, Proxmox
• bash, python, perl, PHP scripting
• Ansible, Rundeck, Gitlab
• Slurm, MPI’s (IntelMPI, HPC-X, mpich, openmpi).

We don’t expect candidates to have knowledge of all these technologies, but some familiarity with Linux, Windows, and general networking is required.

Requirements

• A 2-year or 4-year degree is preferred
• 5 years experience
• Some heavy lifting (<50 lbs) may be required
• Must be a U.S. Citizen or have permanent residency
• Position is onsite, in-office M-F (no hybrid, etc).

Convergent Science, Inc., is an Equal Opportunity Employer. We are committed to building a diverse team and to creating an inclusive environment for all employees. We believe that diversity and inclusion make our company stronger and our software better. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Job Type: Full-time

Pay: From $80,000.00 per year

Benefits

• 401(k)
• 401(k) matching
• Dental insurance
• Employee assistance program
• Employee discount
• Flexible spending account
• Health insurance
• Health savings account
• Life insurance
• Paid time off
• Parental leave
• Referral program
• Vision insurance

Work Location: In person