Linux - HPC Engineer

Cognizant; Greater London; On-site; GBP 55,000 - 75,000; Full time

Job summary

A leading technology firm is seeking a Senior Linux HPC Systems Administrator/Engineer to support cutting-edge technology projects. The role involves administering RHEL environments, troubleshooting system issues, and providing support to scientific users. Ideal candidates have extensive experience with RHEL 8 & 9 and high-end workstation hardware, along with strong troubleshooting skills. Join a creative team passionate about delivering top-notch service.

Qualifications

• Extensive hands-on expertise in RedHat Enterprise Linux (RHEL), specifically RHEL 8 & 9.
• Demonstrated knowledge of scientific computing in high-performance compute environments.
• Strong troubleshooting skills for both hardware and software issues.

Responsibilities

• Administer, configure, and maintain RHEL environments.
• Provide hands-on support with high-end workstation hardware.
• Offer technical support to scientific users.
• Assist with management of high-performance compute resources.
• Monitor and troubleshoot system performance issues.

Skills

Enterprise IT experience

Hands-on expertise in RHEL 8 & 9

Experience with high-end workstation hardware

Scientific application support

Troubleshooting skills

Tools

ServiceNow

Slurm

Job description

This is an excellent opportunity for Senior Linux HPC Systems Administrator/Engineer professionals to be part of leading-edge technology projects. Cognizant’s Cloud, Infrastructure & Security Services Practice provides end-to-end solutions covering architecture, design, implementation, management, and on-going support across the entire enterprise technology infrastructure. Our services include a spectrum of management, consulting, and systems integration services to help our clients maximize value in their infrastructure resources, while optimizing infrastructure performance and cost.

Key Responsibilities

• Administer, configure, and maintain RHEL environments (specifically RHEL 8 & 9) ensuring stability, performance, and security.
• Provide hands‑on support with high‑end workstation hardware for scientists, promptly addressing hardware and software issues.
• Offer technical support to scientific users, bridging the gap between research demands and IT infrastructure.
• Leverage any scientific computing experience to optimize system performance and manage specialized applications.
• Assist with management of high‑performance compute resources, including experience with Slurm, clustering, and related HPC technologies.
• Work closely with other technical teams and stakeholders to align IT services with organizational needs.
• Build and maintain strong stakeholder relationships, communicating complex technical concepts.
• Provide in‑person support onsite to ensure effective resolution of issues and a high level of customer satisfaction.
• Utilize ServiceNow for tracking incidents, managing change requests, and ensuring timely resolution of service tickets.
• Implement and follow IT best practices for incident management, performance monitoring, and network troubleshooting.
• Manage SSL certificates and configure web servers as needed.
• Monitor and troubleshoot system performance issues, including understanding the impact of GPUs, networking, and other hardware components.
• Handle vendor relationships effectively, coordinating with external partners to resolve issues and optimize service delivery.
• Maintain familiarity with MacOS systems to provide assistance when necessary.

Required Skills

• Good enterprise IT experience with extensive hands‑on expertise in RedHat Enterprise Linux (RHEL), specifically RHEL 8 & 9.
• Proven experience with high‑end workstation hardware setups and scientific application support.
• Demonstrated knowledge of scientific computing and experience in high performance compute environments, including experience with Slurm and clustering, is highly desirable.
• Strong troubleshooting skills for both hardware and software issues.

Desirable Skills:

• Working knowledge of ServiceNow and its application in incident and service management.
• Familiarity with networking concepts, performance monitoring tools, and GPU technologies.
• Any experience with scientific applications will be a significant advantage.
• Exposure to MacOS environments is useful but not essential.

At Cognizant you will experience an exciting mix of innovation by design, creativity, collaboration, and efficiency within a framework of stimulating objectives and a passion for delivering the best to our customers.

You will be joining a network of some of the most creative, innovative, and dedicated people in the industry with ample opportunities to learn and develop your career.

Our Associates are chosen for their attitude, skills, knowledge, and enthusiasm but above all, their belief that anything is possible.

Cognizant is an equal opportunities employer, and we welcome all applications regardless of race, colour, gender, ethnic origin, nationality, religion or beliefs, disability, age, sexual orientation, political opinions, or trade union membership.