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Principal Infrastructure Engineer (Linux Expert

Job in Philadelphia, Philadelphia County, Pennsylvania, 19117, USA
Listing for: Socket.dev
Full Time position
Listed on 2026-08-08
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity
Salary/Wage Range or Industry Benchmark: 150000 - 230000 USD Yearly USD 150000.00 230000.00 YEAR
Job Description & How to Apply Below
Position: Principal Infrastructure Engineer (Linux Expert)

Keyloop bridges the gap between dealers, manufacturers, technology suppliers and car buyers.

We empower car dealers and manufacturers to fully embrace digital transformation. How? By creating innovative technology that makes selling cars better for our customers, and buying and owning cars better for theirs.

We use cutting-edge technology to link our clients’ systems, departments and sites. We provide an open technology platform that’s shaping the industry for the future. We use data to help clients become more efficient, increase profitability and give more customers an amazing experience.

Want to be part of it?

Role overview:

We are currently seeking an experienced Principal Linux Engineer to design and implement the complex enterprise Linux platforms used within several AWS regions and Data Centre locations. This is an opportunity to help lead a core part of our infrastructure through generation of recommendations and thought leadership, operating as a senior technical authority, driving complex initiatives, setting direction, and influencing outcomes beyond your immediate remit.

Driving

Delivery & Technical Direction
  • Not only delivering assigned work but actively driving projects forward. Delivering outcomes notsimplycompletinggiventasks.
  • Providing technical direction to other engineers and teams.
  • Acting, when required,as a technical project lead / de facto technical project manager, particularly for initiatives that span multiple teams or platforms.
  • Define multiyearroadmaps and technical visionforyourtechnology areas.
Ownership of Strategic Work
  • Leading key strategic initiatives for the team, which could involve technologies outsideofexperience or comfort.
  • Taking accountability for delivery of high-impact, business-critical projects.
  • Owning delivery even when elements fall outside your core technical expertise.
Operating in Ambiguity
  • Able to work effectively with high levels of ambiguity and incomplete information.
  • Applying broad, structured and creative thinking to solve complex problems.
  • Acting as a thought leader, not just an executor.
  • Demonstrating strong self-starting behaviour, identifying problems and opportunities without direction.
Key

Duties & Responsibilities
  • Work as part of a team to define, design and implement the Platform Infrastructure used within our hybrid cloud locations.
  • Be "the company expert" and technical authority foryour technologies
  • Keep up-to-date with new and emerging technologies that could benefit the services and platform products that Keyloop provide and supply.
  • Provide 3rd line support escalation to the Infrastructure Support/Operations teams. Provide technical training to those backline and operations teams as required.
  • Support the team in selecting products and partners, providing all necessary documentation for launch, implementation and support of designated products.
  • Perform technical POCs and solution validations & recommendations.
  • Be involved in data centre & infrastructure refresh and migration activities.
  • Master Operating System gold image ownership.
  • Designing and delivering

    Linux

    Services with security at its core. Analysing potential opportunities for improvement and provide remediation plans for security vulnerabilities.
Essential Skills/Abilities:
  • Have deep understanding ofLinux

    Server technologies and tooling. For example,Foreman/Redhat Satellite,SELinux,kernelinternals, Oracle Linux/Amazon Linux,AWSPatch Manage rand performance tuning.
  • Have experience of dealing with large scale infrastructure, consisting of thousands of individual servers.
  • Designing and configuration management with security controls in mind.
  • Experience of antivirus and endpoint security protection techniques and tools.
  • Have experience in designing, implementing and ope rationalising technology solutions.
  • Have delivered programs of work to automate manual activities, applying configuration settings across the enterprise, and centrally deploy systems and tooling.
  • Exhibit strong trouble shooting and problem-solving skills.
  • Be able to manage and deliver multiple parallel projects.
Desirable Skills/Abilities (but not essential):
  • As we progress our strategy of moving more workloads to public cloud, an understanding of…
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