Linux Engineer - Kubernetes

JR United Kingdom; London; On-site; GBP 100,000; Full time

Job summary

Join a tech-forward financial services firm that blends over 400 years of heritage with cutting-edge technology. In this dynamic role, you'll manage Kubernetes clusters and collaborate with various teams to secure bare-metal environments. This position offers the chance to work on high-impact infrastructure projects in a modern, agile setting, where your contributions will shape the future of technology in finance. Experience a culture that values innovation and embraces the latest advancements in AI and machine learning, all while enjoying a comprehensive benefits package.

Benefits

Discretionary bonus

30 days holiday

Private health and life insurance

Enhanced parental leave

Flexible working and wellbeing support

Qualifications

• Expertise in Kubernetes administration, particularly on bare-metal environments.
• Strong understanding of networking concepts and protocols.

Responsibilities

• Design and manage highly available Kubernetes clusters across multiple datacentres.
• Collaborate with teams to secure and optimize bare-metal environments.

Skills

Kubernetes administration

Networking (TCP/IP, BGP, VLANs, VRF)

Scripting (Python, Bash)

Infrastructure as Code (Terraform, Ansible)

Tools

Terraform

Ansible

Git

CI/CD tooling

Job description

Social network you want to login/join with:

Linux Engineer - Kubernetes, london (city of london)

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Client:

Harrington Starr

Location:

london (city of london), United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

2

Posted:

02.05.2025

Expiry Date:

16.06.2025

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Job Description:

• Up to £100,000 Basic salary
• 5-days a week onsite in City of London

What’s on offer:

• Discretionary bonus
• 30 days holiday
• Private health and life insurance
• Enhanced parental leave
• Flexible working and wellbeing support

About

Join a tech-forward financial services firm combining 400+ years of heritage with bold investments in modern technology. With a strong in-house development culture and agile delivery mindset, the business is pushing boundaries in AI, machine learning, and high-performance, low-latency trading infrastructure.

The 300-person technology team operates in a Scrumban framework and covers Cloud, DevOps, Cybersecurity, Software Engineering and more. In this Kubernetes-focused role, you'll help build and scale a bare-metal HPC platform for a broad spectrum of use cases – from latency-sensitive trading to big data and analytics – with the opportunity to expand into cloud where appropriate.

What you’ll do:

• Design and manage highly available Kubernetes clusters across multiple datacentres
• Collaborate with Linux, infrastructure, and SOC/CERT teams to secure and optimise bare-metal environments
• Support mission-critical workloads including low-latency trading systems, leveraging tools like Calico, OPA/Gatekeeper, and Kyverno for policy enforcement and security
• Replace legacy networking infrastructure with a Kubernetes-first architecture, treating pods as first-class citizens in a highly available, BGP-based leaf/spine fabric
• Lead systems administration on Ubuntu and RHEL systems, tuning OS configurations for performance, observability, and compliance
• Develop services like DNS-based discovery and egress gateways for smart routing of financial traffic
• Automate infrastructure using Terraform, Ansible, Git, and CI/CD tooling

What we’re looking for:

• Kubernetes administration expertise, ideally on bare-metal
• Solid understanding of networking (TCP/IP, BGP, VLANs, VRF)
• Scripting and IaC experience (Python, Bash, Helm, Terraform)
• Experience working in regulated environments with PAM, policy-as-code, and strong security posture

If you're passionate about building high-impact infrastructure in a modern, agile setting - without the red tape - this is an opportunity to truly shape the future of tech in finance.