Key Facts

Remote From:

Full time

Senior (5-10 years)

English

Hard Skills

VMware Virtualization Red Hat Enterprise Virtualization Kubernetes Linux Administration Live Migration System Center Virtual Machine Management High Availability Design Storages Business Intelligence Tools Storage Management Proxmox Microsoft Azure Microsoft Operating Systems Citrix Systems Property Ownership Root Cause Analysis

Other Skills

•
Calmness Under Pressure
•
Communication
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Time Management
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Teamwork
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Prioritization
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Problem Solving

Roles & Responsibilities

7-10 years of experience in Systems Engineering
2-4 years working directly with Kubernetes or OpenShift (MSP environment preferred)
1-3 years strong Linux administration skills
Red Hat Certified OpenShift Administrator and Red Hat Certified Specialist in OpenShift Virtualisation

Requirements:

Lead end-to-end migration from VMware vSphere to OpenShift, including Migration Toolkit for Virtualisation (MTV), pre-migration discovery, and 'Warm Migrations' to minimise downtime for critical workloads.
Design Bare Metal OpenShift clusters optimized for virtualization, ensuring high performance for compute-heavy VM workloads.
Manage storage and disaster recovery: configure Portworx on Pure Storage, oversee backup/DR within OpenShift, monitor storage health, and perform day-2 operational tasks.
Provide advanced troubleshooting and escalation, perform root-cause analysis, collaborate with support teams, and participate in rotating on-call schedules including weekends.

Abacus Group

About Abacus Group

Abacus Group, LLC is a leading provider of hosted IT solutions and service focused on helping alternative investment firms by providing an enterprise technology platform specifically designed for the unique needs of the financial services industry. The innovative and award-winning Abacus Cloud platform allows investment managers to source all technology needs as a service, offering the capacity to scale on demand to meet current and future cybersecurity, storage and compliance requirements. The company has offices in New York, NY; San Francisco, CA; Boston, MA; Dallas, TX; Greenwich, CT; Los Angeles, CA; Charlotte, NC; and London, England. For more information, visit www.abacusgroupllc.com.

Company type: SME

Founded: 2018

Company size: 51 - 200

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Job description

Overview

As a Senior Systems Engineer, you will lead the organisation’s transformation from a VMware-based environment to Red Hat OpenShift Virtualisation. This role is responsible for the full migration lifecycle, as well as the day‑to‑day operation, optimisation, and maintenance of Virtual Machines (VMs) running on OpenShift. You will serve as a senior technical resource, providing deep expertise in virtualisation, Linux, Kubernetes/OpenShift, and enterprise infrastructure.

Job Description

Duties and Responsibilities:

Infrastructure Design: Assist with the design of Bare Metal OpenShift clusters optimised for virtualisation, ensuring high performance for compute-heavy VM workloads.
Modernisation & Migration: Lead the end-to-end migration lifecycle from VMware vSphere to OpenShift. This includes leveraging the Migration Toolkit for Virtualisation (MTV), performing pre-migration discovery, and executing "Warm Migrations" to minimise downtime for critical business stateful workloads.
Storage Management: Experience configuring Portworx as the storage provider on top of Pure Storage.
Backup & DR: Experience with managing backup and DR within Red Hat OpenShift environments. Assisting the DR team in configuring run books for Client DR Testing.
Operational Excellence: Manage VM-specific "Day 2" operations, including Live Migration, node maintenance/draining, and high-availability (HA) scheduling.
Optimize & Maintain: Proactively monitor our systems with CheckMK, manage storage on Pure Storage and HPE.
Troubleshoot & Resolve: Act as a final escalation point for complex technical issues, performing deep-dive root cause analysis and collaborating with support teams to ensure timely resolution.
Collaborate & Innovate: Work closely with a team of skilled engineers to share knowledge, improve processes, and evaluate emerging technologies.
Provide Critical Support: Participate in a rotating on-call schedule to provide after-hours support for critical infrastructure.
Flexibility: Ability to work Weekends for project roll outs, Maintenance tasks etc.

Person Specification

Qualifications and Experience

Experience	In the field of:	Required/Preferred
7-10 Years	Systems Engineering	Required
2-4 Years	Working directly with Kubernetes or OpenShift (MSP environment preferred)	Required
1-3 Years	Strong Linux administration skills	Required

Licenses and Certifications	Professional Association	Required/Preferred
Red Hat Certified OpenShift Administrator		Required
Red Hat Certified Specialist in OpenShift Virtualisation		Required

Knowledge, Skills, and Abilities

Virtualisation: Red Hat OpenShift, VMware ESXi/vCenter, Proxmox VE
Cloud: Microsoft Azure (IaaS/PaaS)
Application & Desktop Delivery: Citrix Virtual Apps and Desktops, Citrix NetScaler (ADC)
Storage: Pure Storage, HPE
Operating Systems: Windows Server, Linux
Monitoring: CheckMK or similar enterprise monitoring tools
Availability to work UK business hours with occasional evenings/weekends as part of the on-call rotation.

Attributes that will drive success:

Demonstrated ability to analyze root causes and implement long-term solutions.
Ability to perform under pressure, manage competing priorities, and meet tight deadlines.
Self‑starter with strong ownership, able to work independently while collaborating when needed

Benefits of Working for Abacus:

Generous annual leave entitlement plus bank holidays (pro-rata if part-time working hours apply)
Gym discount
Life insurance
Comprehensive travel insurance for you and your family in line with scheme rules
Confidential well-being and counselling support
Competitive Compensation
Contributory pension scheme
Company events
Private Medical and Dental Insurance