Certes Engagement Hub

Stakeholder and Engagement Manager

Contract

Full-time

Job ID:

92246

Published date:

24/03/2026

Network Engineer

Warwickshire

Permanent

Full-time

Job ID:

89800

Published date:

23/03/2026

Summary

Network Engineer

Role Type: Permanent role

Location: Warwickshire & remote (hybrid)

Salary: £50,949-£57,186 per annum (plus excellent benefits)

Start: ASAP

Role Overview:

A Network Engineer is required for our public sector client to join their digital services and architecture team to design, build, operate and continuously improve their enterprise network infrastructure across physical and virtual environments.

You will be required to provide both technical leadership and subject matter expertise, to ensure their network services are resilient, secure, scalable and aligned with their business needs and digital strategy.

This role will enable you as the Network Engineer to drive innovation, challenge existing approaches and support both internally delivered and third-party services.

Essential Skills & Experience required:

Substantial knowledge of Cisco, Avaya telephony, Azure, AWS, zScaler, SolarWinds and Sentinel gained through significant experience within similar size organisations.

Strong knowledge of network Monitoring & Management alongside Supplier Management experience.

Strong Knowledge of SD Wan, VLAN Azure vWan.

Strong Knowledge of Static and Dynamic routing.

Successful in applying industry best practice with a knowledge of ISO 20000 (Service Management) and ITSM.

Authoring of Technical Design documents and Service artefacts.

Can demonstrate experience of supporting, building and maintain physical and virtual infrastructure in a similar large complex multi-faceted organisation.

Strong focus on ICT technologies and operational service delivery.

Subject matter expert from inception, through to delivery to the end customer

Responsibilities include:

Support and maintain the clients network infrastructure with it be the day-to-day operational running or during the planning, design, development and documentation of new technical solutions.

To provide technical support assurance and guidance in the designated area, working unsupervised on infrastructure, network configuration and security tasks meeting required service levels and complying with digital service directorate procedures.

To ensure that the network meets all the relevant industry/national /legislative /compliance standards and demonstrates consistency of implementation.

To take responsibility for understanding business requirements, collecting data, delivering analysis and recommending options.

To deliver an environment of continuous improvement and innovation in respect of the infrastructure architecture and ensure that emerging technology and new initiatives are fully evaluated and relevant proposals are proactively driven through the technical architect practice.

To ensure the network meets the business requirements and digital strategy, leveraging industry standard as much as possible.

Identifying risks and providing mitigations options for these to the delivery team.

Responsible for impact analysis and quality assurance of modifications to existing systems to support new solutions.

Please be advised this role will be hybrid working; the client site is in Warwickshire with travel required throughout Warwickshire as/when required.

You will also be be required to participate in an On-Call rota (On-Call allowance provided).

To apply for this role please email your CV to: joanne.stanley@certes.co.uk

Certes IT Service Solutions welcome applications from all sections of the community and from people with diverse experience and backgrounds

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Finance Analyst

Contract

Full-time

Job ID:

92213

Published date:

23/03/2026

Summary

Finance Analyst

Duration: 12 Months

Rate: £300 per day

Location: Remote (with only occasional travel the client site in London)

IR35 Status: Inside

Start: ASAP

A Finance Analyst is required for our Government client to support managing income for part of their business which is a digital communications platform used by the public sector. The focus of this role will be reducing accruals and the work will be led by their Finance Operations Analyst.

Responsibilities include:

Communicate with customers to ensure purchase orders are in place, raise invoices, keep the billing tracker up-to-date, set up new customers on the finance system, and respond to customer queries.

Respond to invoicing queries from their inancial services provider and revise invoices or raise credit notes as required.

Be responsive and adaptable to meet the changing and varied work carried out in the team, this includes covering appropriate work when the other team members are absent.

Work collaboratively with the Finance Operations Analyst and the Business Operations team

Monitor and maintain the billing data to ensure compliance and audit requirements are met.

Essential Skills & Experience required:

As the Finance Analyst you will possess previous experience supporting the billing of a high volume product.

Can demonstrate experience in billing management including tracking, reporting, forecasting and risk identification

Possess strong data analysis skills combined with a clear understanding of how to present complex information in a clear and understandable way to gain decisions.

Proficient in MS Excel and Google Sheets together with a basic knowledge of the MS Office Suite (Outlook, Word, PowerPoint) and Google Workspace (Docs, Slides, Gmail).

Possess good data analysis skills, Google Sheets and Spreadsheets.

Strong data analysis skills combined with a clear understanding of how to present complex information in a clear and understandable way to gain decisions.

Experienced working with stakeholders, colleagues and customers; good collaboration skills

If this role is of interest, please email your CV to: joanne.stanley@certes.co.uk

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VMware Engineer (Vulnerability Remediation Specialist)

Manchester

Contract

Full-time

Job ID:

91982

Published date:

17/03/2026

Summary

VMware Engineer (Vulnerability Remediation)

Duration: 4 Months

Location: Manchester & remote (hybrid)

Rate: £532 per day

Start: ASAP

IR35 Status: Inside

Role Overview:

An experienced VMware Engineer is required for our higher education client to support a focused vulnerability assessment and remediation programme across a complex on-premises VMware estate.

This is a delivery-focused role requiring immediate impact and as the VMware Engineer you will take full ownership of identifying, analysing, and remediating security vulnerabilities across VMware vSphere, VMware ESXi, and VMware vCenter Server environments.

You will be expected to operate independently, manage challenging stakeholders, and drive remediation to completion within agreed timelines.

Essential Skills & Experience required:

As the VMware Engineer you will possess:

· Strong hands-on experience in enterprise on-prem VMware environments.

· Proven track record of delivering vulnerability remediation programmes.

Possess a deep knowledge of:

vSphere architecture and cluster design

ESXi lifecycle and patch management

vCenter upgrade paths and dependencies

HA, DRS, vMotion configurations

· Experience working with security scanning tools and interpreting CVEs.

· Strong understanding of infrastructure hardening and security best practices.

· Ability to operate autonomously with minimal supervision.

· Experience working in fast-paced, deadline-driven environments.

Responsibilities include:

· Assess and validate vulnerability findings across the VMware estate.

· Remediate critical and high-risk vulnerabilities within defined SLA windows.

· Reduce overall risk exposure through patching, upgrades, configuration hardening, and compensating controls.

· Provide clear reporting on remediation status, risk acceptance, and outstanding actions.

· Support audit and compliance requirements where applicable.

Key Responsibilities

· Review and validate vulnerability scan outputs affecting ESXi hosts and vCenter components.

· Perform impact and risk assessments prior to remediation.

· Plan and execute:

ESXi patching and upgrades

vCenter updates

Security configuration hardening

Cluster remediation activities

Coordinate change management activities and maintenance windows.

Conduct root cause analysis on recurring vulnerabilities.

Engage directly with infrastructure, network, security, and application teams to resolve dependencies.

Challenge and influence stakeholders to ensure remediation actions are prioritised appropriately.

Provide clear technical documentation and executive-level status reporting.

Ensure remediation activities align with vendor advisories and industry security standards.

Clear ownership of assigned vulnerability backlog.

Strong stakeholder management skills.

Delivery-focused mindset with measurable outcomes.

Ability to work under pressure and manage competing priorities.

Please Note: *You will be required to attend the client site in Manchester two days per week*

If this role is of interest please email your CV to: joanne.stanley@certes.co.uk

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Senior VMWare Engineer

Manchester

Contract

Full-time

Job ID:

91949

Published date:

17/03/2026

Summary

Senior VMware Engineer

Duration: 4 Months

Location: Manchester & remote (hybrid)

Rate: £570 per day

Start: ASAP

IR35 Status: Inside

Role Overview:

A Senior VMware Engineer is required to support our higher education client's virtual infrastructure modernisation and operational support initiatives. You will possess a minimum of 5 years hands-on experience provisioning and managing Linux and Windows virtual machines in enterprise VMware environments. You will be proficient in providing advanced engineering expertise across VMware Cloud Foundation (VCF) VMware ESXi, VMware vSphere and VMware NSX-T; ensuring stability, scalability and performance of mission critical academic and research systems.

Essential Skills & Experience required:

As the Senior VMware Engineer you will possess the following:

A minimum of 5+ years of enterprise VMware engineering experience.

A proven track record provisioning Linux (RHEL, Ubuntu, etc.) and Windows Server VMs.

Strong hands-on expertise in VCF, ESXi, vSphere, and NSX-T.

Experience in higher education, research institutions, or large multi-tenant environments preferred.

Solid understanding of storage, networking, and security integration.

Automation and scripting skills (PowerCLI, PowerShell, Bash, Python).

Experience with vCenter administration and cluster design.

Strong troubleshooting and performance tuning capabilities.

Desirable Qualifications

VMware certifications (VCP-DCV, VCAP).

Experience with automation/orchestration (VMware Aria/vRealise, Ansible).

Hybrid cloud experience (Azure, AWS, VMware Cloud).

Experience supporting research computing or HPC workloads.

Familiarity with ITIL-based change management processes.

Responsibilities include:

Provision, configure, and manage Linux and Windows VMs in enterprise clusters.
Deploy and manage workloads within VMware Cloud Foundation environments.
Install, configure, patch, and upgrade VMware ESXi hosts.
Administer and optimise VMware vSphere clusters, including HA, DRS, and vMotion.
Design and manage network virtualisation using VMware NSX-T.
Perform VM lifecycle management (build, template creation, cloning, migration, decommissioning).
Conduct performance monitoring, capacity planning, and resource optimisation.
Support storage integration (SAN/NAS/vSAN) and ensure optimal IOPS performance.
Implement and support backup, replication, and disaster recovery solutions.
Provide advanced troubleshooting and root cause analysis.
Document architecture, configurations, and operational procedures.
Collaborate with infrastructure, security, networking, and research computing teams.

Deliverables

Fully provisioned and optimised virtual machine environments.
Updated and documented VMware architecture diagrams and configurations.
Performance optimisation and capacity planning reports.
Resolved infrastructure incidents within agreed SLAs.
Knowledge transfer documentation and handover sessions (if required)

If this role is of interest please email your CV to: joanne.stanley@certes.co.uk

Read More Apply Now

ERP Test Manager

Contract

Full-time

Job ID:

91814

Published date:

13/03/2026

ERP Integration Delivery Analyst

Contract

Full-time

Job ID:

91813

Published date:

13/03/2026

Senior Technical Architect

Buckinghamshire

Contract

Full-time

Job ID:

91710

Published date:

13/03/2026

Senior Service Designer

Buckinghamshire

Contract

Full-time

Job ID:

91677

Published date:

10/03/2026

Senior Network Engineer

Buckinghamshire

Contract

Full-time

Job ID:

91530

Published date:

04/03/2026

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