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Contract Site Reliability Engineer (SRE) Jobs
Overview
Find top Contract Site Reliability Engineer (SRE) jobs with Haystack, your go-to IT job board. Browse the latest contract SRE opportunities that let you apply your expertise in system reliability, automation, and performance optimization. Whether you’re looking for short-term projects or long-term contracts, explore roles tailored to your skills and advance your career in site reliability engineering today.
Automation Infrastructure Engineer
CBSbutler Holdings Limited
Corsham
Hybrid
Junior - Mid
£550/day - £575/day
RECENTLY POSTED

Automation Engineer

+6 months +

+Hybrid - occasional travel to Corsham

+SC cleared role - current active clearance is essential

+£550 - £575 a day

+Inside IR35

Skills:

+Automation

+DevOps

+MOD

+SC clearance

We’re looking for an experienced Automation Engineer to join a fast-paced, Agile delivery team supporting large-scale, multi-vendor infrastructure environments. You’ll play a key role in developing automated solutions, building robust web services, and ensuring consistent, secure deployment across complex architectures.

This role is ideal for an engineer who enjoys solving problems, streamlining processes, and working collaboratively within high-performing technical teams.

Essential Skills & Experience

To be considered, candidates must have at least 12 months of hands-on experience within the last 3 years in:

  • Creating PHP and JavaScript web services
  • Consuming REST-based web services
  • Consuming SOAP-based web services
  • Automated deployment of server, network, and storage technologies across multiple vendors
  • Building or supporting large infrastructure environments
  • Troubleshooting hardware and software component failures
  • Working effectively within an Agile development team

Additional essential requirements:

  • Strong written and verbal communication skills
  • High-level analytical and critical thinking capability
  • Valid Security Clearance (SC)
  • Competency with the Microsoft Office Suite

Desirable Skills & Qualifications

The following experience is beneficial:

  • Previous work within the UK public sector, ideally Defence or Defence Digital (formerly ISS)
  • Experience delivering accredited secure solutions within UK Government environments

If you’d like to discuss the Automation Engineer role in more detail, please send your updated CV to and I will get in touch.

Maintenance Engineer
Stirling Warrington
Nottingham
In office
Mid
£45,000/day
TECH-AGNOSTIC ROLE

£47,000 Bonuses
Double Days (Days and Afternoons) 8-Hour Shifts MonFri 39 Hours Per Week
Nottingham

Benefits

  • Monday Friday No weekends Early Finish on Fridays
  • 33 Days Holiday (25 Banks)
  • Overtime paid at 1.5X midweek, 2X Sat and Sun
  • Production bonus (PaidQuarterly)

The Opportunity

An opportunity for a Mechanical Maintenance Engineer to join a busy operation. The role will be very hands on, and youll need a competency across a variety of machinery. - The machinery you will be working on will be a mix of automated machinery and heavy older machinery: Conveyors, presses, furnaces, robots, welding machines, laser machines, punch press machines, spray robots, air tools, sub-assembly lines and assembly lines mainly. Your job will be a mix of reactive/PPM and chance to undertake project work and progress within the company.

Experience required:

  • At least 3 years experience as a maintenance engineer
  • Any experience with Robots is desirable
  • A good methodical fault finder use initiative, not afraid to ask questions
  • Any Maintenance Engineer from any background encouraged to apply

Get in touch with Josh Sharkey from Stirling Warrington regarding this maintenance opportunity

INDSW

GCP FinOps Engineer
Stackstudio Digital Ltd.
Newport
In office
Mid - Senior
£400/day - £450/day

Job DetailsJob Title: GCP FinOps EngineerLocation- Newport, UKKey Responsibilities(Individual contributor role)*

  • Optimise large scale data analytics workloads through partitioning, clustering, query rewrites, storage format improvements, and lifecycle policies.
  • Tune containerised microservices by recalibrating CPU/memory requests, improving autoscaling efficiency, and restructuring workload placement on cost efficient compute.
  • Redesign workflow orchestration pipelines for parallel execution, increased concurrency, and offloading heavy tasks to lower cost execution environments.
  • Analyse distributed data processing pipelines to right size worker types, adjust scaling thresholds, and adopt low cost compute for batch workloads.
  • Reduce log processing and storage overhead through log level standardisation, routing rules, exclusion filters, and retention optimisation.
  • Implement storage tiering strategies based on access patterns and enforce lifecycle rules to minimise cold data retention costs.
  • Improve relational database performance through index tuning, connection optimisation, and instance right sizing.
  • Enhance horizontally scalable database performance via autoscaling policies, index improvements, and mitigation of read/write hotspots.
  • Build dashboards, budgets, alerts, and guardrails to drive ongoing cost governance and financial accountability.
  • Collaborate with engineering teams to embed cost efficient architecture patterns and operational best practices.

Key Skills / Knowledge

  • 5+ years of hands-on experience in Google Cloud
  • Strong understanding of GCP Data services (indexing, slots, pruning, partitioning, clustering)
  • Expert-level Kubernetes & GKE resource tuning
  • Hands-on experience with Dataflow job pipelines and worker optimisation
  • Strong Airflow/Composer knowledge (DAG design, scheduling, PodOperator)
  • Strong Dataflow processing pipelines development & schedulers knowledge
  • Deep understanding of Cloud Logging routing, sinks, exclusion filters
  • Experience with Cloud Spanner autoscaling, indexing, schema optimisation
  • Cloud SQL performance tuning and indexing
  • Ability to analyse billing data & resource consumption
  • Experience using GCP Cost Explorer, Recommender API, Billing Export
  • Ability to quantify cost savings and present ROI to leadership
  • Build dashboards, alerts, and budget guardrails
  • Strong communication and stakeholder management
  • Ability to collaborate across engineering, data, and product teams
  • Structured problem-solving mindset
  • Ownership-driven, proactive and independent

Experience Required

  • Min 5+ years experience in Google Cloud
Infrastructure Automation Engineer (SC Cleared)
NSD
Corsham
Hybrid
Mid - Senior
£450/day - £700/day
+3

(IAC / Orchestration / Python / Ansible)

KEY HIGHLIGHTS

£450 - £700 per day

Corsham - 2-3 days onsite / 2 days remote

SC clearance required - DV desirable

Work on a major UK Defence digital transformation programme

ABOUT THE CLIENT

Our client is delivering critical infrastructure automation capability across a large-scale UK Defence platform. Operating within a highly secure environment, they are responsible for developing zero-touch, automated infrastructure solutions across complex, multi-vendor estates. Due to continued programme demand, they are seeking an experienced Infrastructure Automation Engineer to support delivery across secure platforms.

THE BENEFITS

Day rate up to £700

Hybrid working (Corsham-based secure site)

Long-term Defence programme

Exposure to large-scale infrastructure automation

Agile delivery environment using modern DevOps tooling

THE INFRASTRUCTURE AUTOMATION ENGINEER ROLE

As an Infrastructure Automation Engineer , you will design, develop and validate automation components forming part of a secure Defence platform. You will reverse engineer legacy and manual build processes into parameterised, zero-touch automation packages, working primarily with Python3, Ansible and scripting technologies. The role includes producing production-quality code, contributing to design artefacts, supporting system testing, and working within Agile teams using the Atlassian toolset.

INFRASTRUCTURE AUTOMATION ENGINEER ESSENTIAL SKILLS

Active SC clearance (DV preferred)

Strong hands-on experience with Python3 automation development

Experience with Ansible, Puppet or Chef

Scripting experience in Bash and/or PowerShell

Experience automating server, network and storage technologies

Exposure to large infrastructure environments

Strong troubleshooting and problem-solving capability

Experience working in Agile teams

Version control experience (Git / BitBucket)

Relevant certification (e.g. CCNP, VCP, RHCE, OCA) highly desirable.

TO BE CONSIDERED

Please either apply through this advert or email me directly via w .

For further information please call 0117 284 0050 .

By applying for this role, you give express consent for us to process and submit (subject to required skills) your application to our client in conjunction with this vacancy only.

KEY SKILLS

Infrastructure Automation Engineer, Python3, Ansible, DevOps, SC Clearance, DV Clearance, Bash, PowerShell, Jenkins, Git, Agile, Defence, NSD

TPBN1_UKTJ

Automation Engineer
Progressive Recruitment
Burton-on-Trent
Hybrid
Mid - Senior
£45/hour - £50/hour

We're supporting a major engineering organisation delivering large‑scale automation and control upgrades across the UK water sector. Due to increased project workload, they're looking to bring in an experienced Contract Automation Engineer with strong multi‑vendor PLC/SCADA experience and full‑lifecycle project capability. The Role You'll be delivering controls and automation solutions across major water & wastewater treatment projects. This contract involves full lifecycle engineering-from specifications and design through to programming, FAT/SAT, site commissioning, and handover. Technical Requirements You must be proficient in: Allen‑Bradley / Rockwell Automation Studio 5000 / RSLogix 5000 FactoryTalk View SE/ME Schneider Electric EcoStruxure Control Expert (Unity Pro) SCADA/HMI platforms Mitsubishi Software GX Works / GX Developer Ideal Background This will suit contractors who have previously worked with businesses known for water sector systems integration, including those delivering: Water treatment control upgrades Process automation systems Utilities framework projects ICA/MEICA engineering services What You'll Need Proven PLC/SCADA development & commissioning experience Experience in a process related industry Ability to work independently and hit the ground running Willingness to attend site commissioning when required UK Right to Work and immediate or near‑immediate availability What's on Offer Outside IR35 6-12 months contract Long‑term contract extensions available Opportunity to work on next‑generation water infrastructure Flexible hybrid working depending on project stage If you have a background in process industries and a passion for delivering full-life-cycle automation solutions, we'd like to hear from you. Please click to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement. To find out more about Progressive please visit Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC(phone number removed) England and Wales

Infrastructure Engineer
VIQU IT
Portsmouth
Hybrid
Mid
£350/day - £450/day

Infrastructure Engineer - Contract role

VIQU IT are currently seeking an experienced Infrastructure Engineer to join a well-established organisation based in Portsmouth. This is a BAU focused role, supporting and maintaining a live environment whilst the organisation completes on-going project work.

The Infrastructure Engineer Role:

As an Infrastructure Engineer, you will be responsible for maintaining, supporting, and optimising the organisation s core infrastructure estate. You ll play a key role in ensuring high availability, performance, and security across the Windows-based environment.

This is an excellent opportunity for someone who enjoys operational stability, proactive improvement, and hands-on infrastructure support within a Microsoft-centric environment.

The Infrastructure Engineer Responsibilities:

  • Day-to-day support of Windows server infrastructure
  • Administration of Microsoft technologies (Active Directory, Group Policy, DNS, DHCP)
  • Management and support of virtual environments (VMware)
  • Monitoring system performance and resolving infrastructure issues
  • Supporting backup, patching, and upgrade processes
  • Assisting with networking support and troubleshooting
  • Maintaining security best practices across the environment

The Infrastructure Engineer Technical Skills & Experience:

Essential:

  • Strong experience across the Microsoft Windows Server stack
  • Active Directory administration
  • VMware experience (build, support, and troubleshooting)
  • Solid understanding of core networking principles (TCP/IP, VLANs, switching, firewalls)
  • Experience working in a BAU / operational support environment

Desirable:

  • Fortinet firewall experience
  • Exposure to infrastructure security best practices
  • Experience working within structured ITIL environments

This position requires regular onsite presence in Portsmouth, with the possibility of hybrid working once established in the role.

If you are interested in the Infrastructure Engineer role, apply now to speak with VIQU IT in confidence. Or reach out to Phoebe Thompson via the VIQU IT website.

Do you know someone great? We ll thank you with up to £1,000 if your referral is successful (terms apply).

For more exciting roles and opportunities like this, please follow us on IT Recruitment.

3rd Line Storage / Infrastructure Engineer (NetApp) DV Cleared
Experis
London
In office
Mid - Senior
Private salary

3rd Line Storage Engineer

Must have an Active DV Clearance

An excellent opportunity has arisen for a 3rd Line Storage Engineer to support a secure, high profile government environment. You will work with a specialist 3rd line team and engineering functions to maintain, troubleshoot, and enhance storage and infrastructure services across a complex estate. This role is based in London and includes exposure to both legacy and modern technologies.

About the Role - 3rd Line Storage Engineer

  • As a 3rd Line Storage Engineer, you will support users and engineering teams through incident management tooling while maintaining critical storage platforms and associated infrastructure.
  • You will work with technologies including NetApp and other enterprise storage systems, supporting configuration, performance, resilience, and integration across the wider environment.
  • The role includes supporting Microsoft and virtualisation platforms that interface with storage services, ensuring stable and secure operation across multi site domains.
  • You will receive training on legacy components and contribute to upgrades, migrations, and optimisation activities.

What We’re Looking For - 3rd Line Storage Engineer

  • Strong experience with enterprise storage platforms such as NetApp and a good understanding of storage protocols, clustering, HA, SOFS, DFS, and related storage services.
  • Knowledge of Windows Server 2003 to 2022, Active Directory, Group Policy, and secure delegation structures.
  • Understanding of DNS, DHCP, PKI, firewall controls, and SMTP proxy services.
  • Experience with VMware, vCenter, ESXi, vMotion, HyperV, and virtualised infrastructures interacting with storage systems.
  • Exposure to Citrix, App-V, cloud based services, PowerShell, MBAM, BitLocker, and VPN technologies.
  • Desirable knowledge of cloud platforms, automation tooling, container technologies, and monitoring systems.
  • Broader awareness of technologies such as Ansible, Puppet, Kubernetes, Docker, Elasticsearch, Linux, IaaS, and PaaS services.

Deliver secure and resilient storage services within a highly sensitive environment as a 3rd Line Storage Engineer.

To apply, please send your CV by pressing the apply button.

Internal IT Support - 2nd Line
Elix Sourcing Solutions
Essex
In office
Junior - Mid
£16/hour

Location: Stansted
Salary: 45,000 pro rata

Duration: 6-month contract

Hours: Monday - Friday 8am - 5pm

Position for a 2nd line IT Support Administrator to look after employees laptops, Wi-Fi and network issues across the UK via phone and email.

With over 100 years of industry expertise and continued year-on-year growth, this established and respected organisation is seeking an Internal IT Support Admin to join their expanding team on a 6 month contract. This is an excellent opportunity to for someone who has a background in 1st line and 2nd line technical support.

The successful candidate will be responsible for diagnosing and resolving all hardware and software issues on desktops, laptops and servers. In this role, you will assist with IT projects and upgrades as required.

For more information, please click apply and contact Alice Holwell - Reference 4933 , or call (phone number removed).

The Role:
Office based (ONLY)

Working on hardware and software issues

6 month temporary basis

The Candidate:
Experience in an IT support or helpdesk environment

Knowledge of Windows systems, Microsoft 365 and networking fundamentals

Right to work in the UK

Elix Sourcing Solutions is a specialist recruiter for Engineering, Manufacturing, Tech, Energy and Science roles ranging from mid to senior level positions. Please be aware that we will only accept applications from candidates that have a valid work permit to work in the UK. By applying to this job you are confirming that you do not hold a criminal record and that you know of no legal reason why you would be ineligible for employment.

2nd Line, 3rd line, tech support, IT Support, WIFI, network, laptop, Stansted, Essex, Hertfordshire, Helpdesk, internal, windows, Microsoft 365, hardware, software

Infrastructure Engineer - Virtualisation - VMWare
CBSbutler Holdings Limited trading as CBSbutler
Sheffield
Hybrid
Senior - Leader
£360/day - £390/day

Infrastructure Engineer (Virtualisation) - VMware POD Lead
Located in Sheffield
9+ month Contract
360- 390 per day insideIR35
Hybrid - 3 days in the office per week

We are seeking a highly experienced Infrastructure Engineer (Virtualisation) to join the Virtualisation Engineering Team. This is a leadership role within a VMware Engineering POD, responsible for driving product vision, automation, reliability, and service sustainability across a large-scale enterprise VMware estate.

Responsibilities include:
Lead and mentor a team of VMware engineers within a POD structure
Own people and performance management responsibilities
Define VMware product strategy focusing on automation, reliability, availability,
performance, and scale
Design, deploy, and manage VMware technologies including vSphere, vRO, vRLI, vROps,
and vLCM
Drive automation initiatives using PowerCLI, Python, Ansible, and vRealize Suite
Establish and enforce engineering standards and SRE best practices
Improve service sustainability, transformation, and platform reliability
Oversee capacity planning, disaster recovery, and business continuity
Manage major incidents and represent the team on critical calls
Ensure compliance, CVE management, and adherence to regulatory standards
Collaborate with Operations, Engineering, Applications, Connectivity teams, and
vendors
Manage full hardware and software lifecycle from deployment to decommissioning

Skills and Experience:
15+ years’ total IT experience, including 12+ years in distributed systems (Linux,
Windows, HA solutions, server hardware, VMware)
Extensive experience managing VMware products (vSphere, vCenter, vROPS, vRO, vRLI,
vLCM) within banking/finance environments
Strong automation delivery experience across large-scale virtualisation
infrastructure
Deep understanding of network and storage technologies in distributed systems
Proven leadership and team management capability
Strong stakeholder engagement and communication skills
Experience managing full infrastructure lifecycle

This is a senior engineering leadership opportunity for someone who combines deep VMware technical expertise with automation capability and strong people leadership. Please apply for immediate interview!

CBSbutler is operating and advertising as an Employment Agency for permanent positions and as an Employment Business for interim / contract / temporary positions. CBSbutler is an Equal Opportunities employer and we encourage applicants from all backgrounds.

Automation Infrastructure Engineer
CBSbutler Holdings Limited trading as CBSbutler
Corsham
Hybrid
Junior - Mid
£550/day - £575/day

Automation Engineer

+6 months +

+Hybrid - occasional travel to Corsham

+SC cleared role - current active clearance is essential

  • 550 - 575 a day

+Inside IR35

Skills:

+Automation

+DevOps

+MOD

+SC clearance

We’re looking for an experienced Automation Engineer to join a fast-paced, Agile delivery team supporting large-scale, multi-vendor infrastructure environments. You’ll play a key role in developing automated solutions, building robust web services, and ensuring consistent, secure deployment across complex architectures.

This role is ideal for an engineer who enjoys solving problems, streamlining processes, and working collaboratively within high-performing technical teams.

Essential Skills & Experience

To be considered, candidates must have at least 12 months of hands-on experience within the last 3 years in:

  • Creating PHP and JavaScript web services
  • Consuming REST-based web services
  • Consuming SOAP-based web services
  • Automated deployment of server, network, and storage technologies across multiple vendors
  • Building or supporting large infrastructure environments
  • Troubleshooting hardware and software component failures
  • Working effectively within an Agile development team

Additional essential requirements:

  • Strong written and verbal communication skills
  • High-level analytical and critical thinking capability
  • Valid Security Clearance (SC)
  • Competency with the Microsoft Office Suite

Desirable Skills & Qualifications

The following experience is beneficial:

  • Previous work within the UK public sector, ideally Defence or Defence Digital (formerly ISS)
  • Experience delivering accredited secure solutions within UK Government environments

If you’d like to discuss the Automation Engineer role in more detail, please send your updated CV to (url removed) and I will get in touch.

Oracle DBA
Adecco
Wokingham
Hybrid
Mid - Senior
£500/day - £600/day

Oracle Database Administrator (DBA)

Contract
Daily Rate: Up to 600 (Inside IR35 via umbrella)
Contract Length: 6 months initially
Location: Sindlesham, Wokingham (1 day per week onsite is required)

Overview:

Our client is seeking an experienced Oracle Database Administrator to provide essential support for Oracle and SQL Server databases within the estate. This role is vital in maintaining the systems that ensure operational continuity in the UK. As part of a dedicated DBA team, the successful candidate will be instrumental in managing an extensive Oracle database estate, ranging from legacy systems to modern deployments.

Key Responsibilities:

Provide 24x7 database management and administration expertise in high availability environments.
Conduct proactive maintenance and monitoring of Oracle databases.
utilise change, problem, incident, and release management tools effectively.
Liaise with third-party service centres as necessary.
Perform technical analyses and engage with other technical leads to adopt best practises.
Assist in application/system transitions to ensure standby and site failover capabilities.
Offer technical assistance and mentoring to junior resources.
Monitor and respond to incidents and requests using workflow management tools.

Knowledge and Qualifications Required:

Degree or higher educational qualification, coupled with significant IT experience.
ITIL certification (minimum foundation level; higher preferred).
Industry-recognised technical certification in database administration.

Experience Required:

Extensive experience in Oracle 12-19C Database and RAC Administration.
Proficient in Oracle ASM, RMAN, GoldenGate, and Enterprise Manager.
Basic UNIX administration and KSH shell scripting skills.
Familiarity with OpenVMS is a plus.
Strong verbal and written communication skills, with experience in writing and reviewing technical documentation.

Desired Experience:

Proven customer-facing experience in an IT service role.
Methodical and positive approach to problem-solving.
Experience in supporting business-critical, real-time systems.
Capability to work independently or as part of a motivated team.
Previous involvement in 2nd line Out Of Hours support and on-site attendance as required.

Working Environment:

Hybrid working model: 1 day per week onsite.
Standard hours: 9 am - 5 pm.

If you are an Oracle DBA ready to make a significant impact in a critical environment, we invite you to apply. Please submit your CV and a brief cover letter outlining your relevant experience. Our client looks forward to welcoming a new member to their team!

Note: Only candidates who meet the eligibility requirements will be contacted for an interview.

Adecco is a disability-confident employer. It is important to us that we run an inclusive and accessible recruitment process to support candidates of all backgrounds and all abilities to apply. Adecco is committed to building a supportive environment for you to explore the next steps in your career. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you.

Engineering Lead - VMWare/Openshift
Square One Resources
Not Specified
Hybrid
Senior
£400/day - £485/day

Job Title: VMWare Engineering Lead
Location: Sheffield OR Birmingham (3 days per week on-site)
Salary/Rate: Up to 485 per day
Start Date: March 2026
Job Type:10-month contract (Inside IR35)

Company Introduction:
We are currently recruiting for an Engineering Lead with experience in large-scale IT infrastructure & distributed systems to join our tier-1 banking client on an exciting long-term contract.

Role overview

The role is part of the Virtualisation Engineering Team within Distributed Compute in CTO Enterprise Services.
A VMware Engineering POD Lead is responsible for guiding the development and delivery of VMware products, ensuring they meet business needs and customer expectations.

Responsible for VMware Products Vision and Strategy with a focus on automation, availability, reliability, performance, and scale. Managing complex environmental issues, collaborating with wider teams, such as Operations, Applications, Engineering, Connectivity, and vendors.

Job Responsibilities/Objectives:

  • Lead and mentor a team of VMware engineers within the POD structure
  • Responsible for people and performance management of the team
  • Design, deploy, and manage VMware vSphere, VRO, vRLI, and related technologies
  • Oversee day-to-day operations, troubleshooting, and performance tuning of the virtual environment
  • Collaborate with cross-functional teams to deliver infrastructure solutions for business needs
  • Drive automation initiatives using tools such as PowerCLI, Ansible, or vRealize Suite
  • Develop and maintain technical documentation, standards, and best practices
  • Participate in capacity planning, disaster recovery, and business continuity activities
  • Stay updated with the latest VMware technologies and industry trends
  • Engage key stakeholders to ensure product success and value; communicate issues, progress, and resolutions for critical incidents; liaise between operations and engineering teams
  • Continuously monitor compliance and mitigate risks using tools like vRealize Operations; ensure adherence to regulatory standards and internal policies
  • Manage and improve product offerings throughout their lifecycle using Agile methodologies; assess resource needs for critical services
  • Share regular product updates with stakeholders; ensure products are updated and compliant with supported versions; communicate CVEs promptly
  • Provide technical direction and leadership, ensuring best practices in VMware products, distributed systems, servers, and storage
  • Handle crisis situations efficiently, representing the team in major incident calls and providing technical expertise
  • Implement robust monitoring and alerting systems to proactively manage platform health
  • Ensure system availability and performance, meeting defined SLAs and SLOs
  • Plan for future

Required Skills/Experience

  • Extensive IT experience with large-scale IT Infrastructure and in-depth experience with Distributed Systems Ex: Linux, Windows, High Availability Solutions, Server Hardware and VMware products
  • Proven leadership and team management skills.
  • Experienced in managing and maintaining VMware products (vSphere, vCenter, vROPS, vRO, vRLI, vRLCM) within banking / finance domain
  • Proven ability to lead and drive engineering deliveries through automation using PowerCLI, Python, Ansible, vRO workflows in large scale virtualization infrastructure
  • Strong understanding of network and storage technologies in relation to distributed systems especially VMware platform
  • Ability to work collaboratively in team environment and communicate effectively with technical and non-technical stakeholders
  • Excellent communication, interpersonal, leadership, and problem-solving skills.
  • Proficient in managing the entire life cycle of hardware and software, from planning and deployment to maintenance and decommissioning.
  • Diploma/B.E/B.Tech/M.Tech/M.Sc in Computer Science/IT preferred (or any engineering field considered) or equivalent

If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.

Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.

Infrastructure Virtualisation Engineer
Guidant Global
Portsmouth
In office
Mid - Senior
£350/day - £500/day

2 year Contract

Inside IR35

Location - Portsmouth or Corsham

Overview

The Infrastructure Virtualisation Engineering Service will support the technical team responsible for the design, development, documentation, building and validation of the core virtual estate which form the backbone of the NSoIT(D) Platform. The detailed responsibilities of the team include:

  • The design, development, building and validation of all virtualisation components which form part of the NSoIT(D) Platform.
  • Production and review of all levels of design artefacts.
  • Supporting wider NSoIT(D) system testing activities.
  • Working with Service Management to resolve issues.

Essential skills, qualifications and experience

In order to deliver this service, it is essential that individuals have:

  • Demonstrable experience of at least 3 years within the industry with detailed knowledge and understanding, of the design, implementation, and troubleshooting of the following:
    • VMwareESXi
      • Distributed Virtual Switches
      • Distributed Resource Scheduler
      • Distributed Power Management
    • VMwarevSAN
      • Hybrid and All Flash storage configurations
    • VMwarevCenter
      • High Availability;
      • Clustering;
      • Cross-site failure and resiliency
    • VMwareNSX
      • Microsegmentation Firewalling
      • Cross Site VC NSX
    • VMware Horizon
    • At least one professional Virtualisation certification that has been obtained within the last five years, i.e. VMware VCP (VMware vCenter Certified Professional) or similar.
    • Strong communication skills, both written and verbal.
    • Strong critical thinking and analytical skills to solve problems and propose new ideas.
    • Hold a valid Security Clearance (SC).
    • Competency in MS Office Suite.

Desirable skills, qualifications and experience

In order to deliver this service, it is desirable that individuals have:

  • Experience of:
    • Working within the public sector, preferably Defence, and ideally with Defence Digital (formerly ISS).
    • Delivering accredited secure solutions within the UK Public Sector.
    • Delivering in Agile (SAFE4) and Waterfall projects.
    • Large Virtualisation infrastructure environments that operate at scale.
  • Knowledge of The Atlassian toolset (JIRA and Confluence) to record and document work.
  • Networking certification, CCNA (Cisco Certified Network Associate), VMware Network Virtualisation (NSX-DC) or similar.
  • A Computer Science university-based education at Bachelors or Masters level.
  • Experience in developing secure architecture within a multi-tenanted environment.
  • Chartered Engineer Status

Guidant Global is acting as an Employment Business in relation to this vacancy.

Data Engineer (BD&A - DAPM Live Service Support) - Hybrid
CBSbutler Holdings Limited trading as CBSbutler
Shropshire
Hybrid
Mid - Senior
£400/day - £430/day

Job Title: Data Engineer (BD&A - DAPM Live Service Support)

Max Rate: 430 per day inside ir35

Duration: 6 months

Location: Telford/hybrid 2 days per week onsite)

Active SC security clearance is required for this role.

Job Description:

We are seeking an SC Cleared Live Support & Monitoring Engineer to provide operational support across a suite of data integration and analytics platforms. This role focuses on maintaining stability, enhancing monitoring capability, and improving service visibility through consolidated dashboards and intelligent alerting.

Responsibilities

Live Service Support

  • Provide ongoing live support across platforms including:
  • Denodo
  • Talend
  • Pentaho Data Integration (PDI)
  • Git
  • MySQL
  • Amazon Redshift
  • Investigate, diagnose and resolve incidents across data and integration services
  • Work closely with technical teams to maintain service availability and performance

Grafana Monitoring & Alerting

  • Design, create and consolidate Grafana dashboards
  • Transform multiple independent dashboards into a unified Live Service view with drill-down capability by service
  • Gather monitoring requirements from stakeholders
  • Configure and implement alerting for legacy services that currently lack monitoring
  • Deliver fit-for-purpose alert thresholds and notifications aligned to operational needs
  • Improve visibility, observability and proactive incident management

Experience & Skills

Essential

  • Active SC Clearance
  • Experience supporting live production environments
  • Exposure to data platforms such as Denodo, Talend, PDI, MySQL or Redshift
  • Experience creating or maintaining Grafana dashboards
  • Understanding of monitoring, alerting and service observability principles
  • Strong troubleshooting and analytical skills
  • Ability to gather requirements and translate them into monitoring solutions

Desirable

  • Experience configuring Grafana alerting
  • Experience working in a client-side environment
  • Knowledge of legacy system monitoring uplift
  • Familiarity with Git version control
Cloud Infrastructure Engineer
VIQU IT
London
Hybrid
Mid - Senior
£600/day - £700/day
+4

Cloud Infrastructure Engineer 8 months SC Cleared Hybrid - London

My customer is looking for an SC Cleared Cloud Infrastructure Engineer with strong cloud and Infrastructure-as-Code expertise to support the delivery of a large-scale Infrastructure Transformation project.

This role requires a Security Cleared Cloud Infrastructure professional with solid, hands-on experience with DevOps, Terraform, and GitHub.

Responsibilities of the Cloud Infrastructure Engineer:

  • Lead the complete transition of applications into the Azure environment.
  • Create Automation by implementing CI/CD pipelines using GitHub.
  • Implement and manage Infrastructure as Code (IaC) working with tools such as Terraform.
  • Provide SRE-level support, troubleshooting, and incident resolution for complex cloud environments.
  • Coach less-experienced engineers and champion collaborative knowledge-sharing.
  • Installing and configuring Windows based systems.
  • Integrate PowerShell automation with database operations
  • Writing clear and concise documentation.

Essential Skills of the Cloud Infrastructure Engineer:

  • Must hold an Active SC Clearance.
  • Must have experience completing large scale transformation projects.
  • Must have extensive hands-on experience:
    • Azure DevOps
    • PowerShell
    • SQL
    • CI/CD pipelines
    • GitHub
    • Terraform (Infrastructure as Code)
  • Desirable hands-on experience:
    • Kubernetes
    • C# development
    • Packer
    • Helm
    • AKS
    • Flux

The successful Cloud Infrastructure Engineer must be available to work 2 days a week onsite in Central London.

Apply now to speak with VIQU IT in confidence. Or reach out to Matt Farrell via the VIQU IT website.

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Linux Infrastructure Engineer
Experis
London
Hybrid
Mid - Senior
£550/day - £600/day

LINUX Infrastructure Engineer

6 Month Contract - Inside IR35 - Up to 600 per day
London, UK - 2-3 days onsite

We are seeking a DV Cleared LINUX & Applications Specialist to support a secure government programme delivering operating system and application capabilities within a controlled virtual infrastructure.

This is a 6 month contract role, Inside IR35, paying up to 600 per day.

Candidates must hold active DV Clearance and be a sole British national due to the sensitivity of the programme.

Key Responsibilities

  • Design, build and integration of Linux operating systems - Red Hat preferred
  • Provisioning of new systems within virtual environments
  • OS upgrades, patching and lifecycle management via Satellite Server
  • Security hardening to CIS and NIST standards
  • Use of security scanning tools and threat remediation
  • Deployment, configuration and troubleshooting of vendor monitoring tools
  • Integration with operating systems, container platforms, Active Directory, security tooling and backup solutions
  • Build and deployment of network and infrastructure monitoring tools
  • Strong troubleshooting across OS and IP networking environments
  • Production of High and Low Level Design documentation and build guides

Expected Activities

  • Deliver against the project technical roadmap
  • Linux server builds within on-site infrastructure
  • OS hardening, upgrades and patching
  • Application deployment and container integration
  • Integration with storage, security, monitoring and backup capabilities

This is a hands-on delivery role within a high assurance environment.

If you hold active DV Clearance and are looking for your next secure contract engagement, apply with your latest CV

OT Security Engineer
Rullion Managed Services
Warwickshire
Hybrid
Mid - Senior
Private salary
TECH-AGNOSTIC ROLE

Rullion are looking to recruit for the following role for one of our global leading Energy clients.

  • OT Security Engineer
  • Location - Warwick- Hybrid - 1 day per week - Commute to Lincoln once a month
  • Some international travel may be required
  • ASAP Start
  • 6-12 Months then rolling contract (long term work)
  • Inside IR35
  • PAYE 473 per day PAYE - 640 Per day Umbrella
  • Hands on Role not just consultant role - Not just IT

Position Main Responsibilities:

  • Report to the OT Security Operations Lead
  • Contribute to the Digital Products and Solutions team in achieving goals and setting cyber security strategy.
  • Assist in the delivery of cybersecurity projects by validating existing technical documentation.
  • Lead deployment activities in OT environments, including configuring networks, remote access solutions, anti-malware, backup solutions and virtualization platforms.
  • Provide customer cyber support and act as a point of contact for execution projects.
  • Answer technical questions from Product Lines, including troubleshooting and solution listing.
  • Write and perform training sessions for internal teams and customers.
  • Support key business stakeholders in adopting new technologies.
  • Develop and maintain technical partnerships with internal and external stakeholders or suppliers.
  • Liaise with the internal ICS (Industrial Cyber Security) group on compliance and best practices.
  • Support Cyber execution training and troubleshooting for Product Competence Centers.
  • Maintain the cyber security lab in Warwickshire with monthly visits.
  • Travel to customer sites globally (approx. 10% of the time).

Typical Day Overview:

A typical day may involve:

  • Responding to cyber technical queries from sales teams or engineering teams
  • Configuring network devices or security solutions
  • Creating user guides for engineering teams to deploy cybersecurity solutions
  • Preparing or delivering training sessions.
  • collaborating with stakeholders to review technical documentation
  • Supporting engineers during project execution.

Must have Relevant Skills and Experience:

  • Hands-on competence as a control systems engineer or network engineer role, with knowledge of industrial applications preferably in energy or oil & gas.
  • Hands-on competence with cybersecurity implementation in OT environments.
  • Actual engineering hands-on competence of configuring & deploying security solutions.
  • Hands-on competence with Backup Solutions and Anti-Malware solutions
  • Good practical knowledge of industrial cyber regulations, especially IEC 62443.
  • Strong attention to detail and high-quality deliverables.
  • Hands-on competence of remote connection solutions used in industry.
  • Hands-on competence configuring network switches and firewalls.
  • Proven ability to write and manage technical documentation.
  • Preferred certifications: GICSP or similar.
  • Hands-on competence with virtualization platforms (e.g., VMware, Proxmox).
  • Excellent interpersonal, verbal, and written communication skills for client-facing interactions.

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.

Desktop Support Engineer
Queen Square Recruitment Ltd
Gloucester
In office
Junior - Mid
£200/day - £220/day

Desktop Support Engineer (SC Cleared)

Location: Gloucester (100% Onsite)

Contract: 6 Months Initially

Start Date: March (ASAP)

Rate: 200 - 220 per day (Inside IR35)

About the Role

Our client is seeking an experienced SC Cleared Desktop Support Engineer to join their team in Gloucester. This role is fully onsite and plays a key part in ensuring the smooth operation of their IT systems, supporting end-users, and maintaining technical excellence across the organisation.

You will be responsible for diagnosing and resolving technical issues, supporting Windows 10/Microsoft Managed Desktop environments, and assisting with IT infrastructure tasks to minimise downtime and enhance productivity.

Key Responsibilities

Technical Support & Issue Resolution

  • Troubleshoot and resolve issues across networks, applications, Windows 10, hardware, software, VPNs, printers, and mobile devices.
  • Manage incident queues and ensure timely response to reactive and proactive incidents.
  • Provide support to standard users and VIP stakeholders.
  • Perform Active Directory tasks including group management, account unlocks, and password resets.

Device & Asset Management

  • Build and deploy laptops/desktops using approved images (MMD environment).
  • Manage antivirus tools (Defender / McAfee).
  • Support hardware logistics including device moves, unpacking/repacking, shipping, and device retirement.
  • Maintain accurate asset and configuration data.

User-Facing Support

  • Provide Tech-Bar support for end-user queries.
  • Monitor phones, emails, and Teams channels for incoming incidents.
  • Support training/meeting room equipment and loan device management.
  • Assist with conference room device support and cloud printing services.

Documentation & Collaboration

  • Create and maintain technical documentation, reports, and user guides.
  • Liaise with offshore teams, senior stakeholders, and business partners.
  • Ensure excellent communication across all functional teams.

Required Skills & Experience

  • Strong troubleshooting experience with Windows 10 operating systems.
  • Experience in Microsoft Managed Desktop (MMD) environments.
  • Ability to install/configure Starlink satellite network devices (desirable).
  • Intune administration understanding and basic virtualisation awareness.
  • Ability to configure iPhones/iPads and manage user lifecycle tasks via Azure Portal.
  • Experience supporting Office Apps, SharePoint, Teams admin (L1 level).
  • Excellent communication, multitasking, and customer service skills.
  • Strong problem-solving and root cause analysis abilities.
  • Self-motivated, proactive, and able to work independently.
  • ITIL knowledge or certification preferred.

Additional Requirements

  • Must be SC Cleared.
  • Flexibility to travel between local sites if/when required.

If you are SC cleared and have the relevant skills and experience, please apply promptly to be considered.

Network Engineer
Hays Technology
Cardiff
In office
Mid - Senior
£400/day - £450/day
TECH-AGNOSTIC ROLE

Cardiff
On-site
18 Months
400 to 450 Outside IR35

Your new company
A large organisation based in South Wales.

Your new role
The role focusses on deploying Fortinet infrastructure, including Fortigate firewalls, Fortiswitches, and FortiManager. You will lead the network deployment, ensure alignment across business teams, and build strong internal relationships to provide a smooth handover once the implementation is complete.
Key Responsibilities

  • Creating Implementation plans using the LLD provided, planning, and installing local area networks (LAN), wide area networks (WAN)
  • Implementing firewalls, switches, taps and centralised mgmt. As required on 2 new sites
  • Testing new implementations and monitoring network performance, analysing data, and performing updates as required to ensure the best possible delivery.
  • Following the successful build of 2 new DC’s, there will be a migration exercise out of the existing DC.
  • Review and apply necessary FW changes following the change process.
  • Diagnosing, fixing, and documenting hardware and software issues
  • Providing technical overview documentation for internal support teams
  • Provide internal network team detailed handovers to enable a smooth transition into BAU support.
  • You will be expected to attend the site for the implementation and design sessions as required.

What you’ll need to succeed

  • Strong understanding of networking protocols (TCP/IP, BGP, OSPF), routing, switching, and security principles.
  • Experience working with network hardware (Fortinet (Essential), Cisco, Juniper, etc.) and software-defined networking (SDN).
  • Ability to analyse data traffic and troubleshoot network issues efficiently.
  • Experience of implementing hardware from scratch and testing out appropriately.
  • Able & willing to travel to sites in South Wales, from Swansea to Newport.

What you’ll get in return
Up to 450 Per Day, Outside IR35.

What you need to do now
If you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or call us now.
If this job isn’t quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C’s, Privacy Policy and Disclaimers which can be found at (url removed)

Network Technical Integration Lead
CBSbutler Holdings Limited trading as CBSbutler
Cheshire
Hybrid
Senior
£550/day - £604/day

Location: Hybrid (60% onsite / 40% remote)
Duration: Contract through to November 2026

Role Overview

We are seeking an experienced Network Technical Integration Lead to drive engineering execution, ensure quality delivery, and lead safe, controlled change into production environments.

This is a senior technical leadership role focused on resilience, automation-first engineering, and end-to-end design accountability. You will coach engineers, embed SRE best practices, and ensure non-functional requirements (NFRs) are engineered into every solution.

Key Responsibilities

  • End-to-End Design Ownership
  • Change & Release Engineering
    Define and execute structured change rehearsals, smoke testing, soak testing, and production rollbacks.
  • Automation & Infrastructure as Code
  • Site Reliability Engineering (SRE) Practices
    Implement error budgets, reduce toil, and enhance reliability engineering standards.
  • Operational Excellence & Continuous Improvement

Essential Experience

  • 8-10+ years’ experience across network and security engineering (design, build, operate)

  • Strong troubleshooting across multiple layers:

    • Network
    • Identity
    • Endpoint
    • Proxy
    • SIEM / SOAR
  • Hands-on automation experience (e.g., Ansible, Terraform, GitHub, Azure DevOps)

  • Proven ITIL change leadership experience

  • Major Incident Management (MIM) exposure

Desirable Certifications

  • CCNP / CCIE
  • Zscaler Professional
  • Fortinet NSE 4+
  • Splunk Admin / Enterprise Security
  • ITIL 4 Managing Professional (or equivalent)

Success Metrics

  • Reduced change failure rate
  • Improved MTTR (Mean Time to Resolution)
  • Increased automated test coverage
  • Higher percentage of changes moved to standard/automated models
  • Measurable reduction in repeat incidents

This role is ideal for a technically strong, automation-driven engineering leader who thrives in complex enterprise environments and is passionate about building resilient, production-ready network platforms.

SCADA Engineer - Onshore
Taylor Hopkinson Limited
Norwich
In office
Mid - Senior
Private salary
TECH-AGNOSTIC ROLE

SCADA Engineer required for a Major Offshore Wind Developer based in the UK.

Responsibilities:

  • Provide independent supervision and coordination of SCADA commissioning activities within EPC Electrical Systems.
  • Manage and oversee FAT, SAT, SIT, and on-site SCADA commissioning execution in accordance with project timelines.
  • Ensure compliance with Clients standards, project technical specifications, National Grid requirements, HSE rules, and applicable local legislation.
  • Assume day-to-day responsibility for SCADA commissioning activities on site, including contractor supervision and coordination.
  • Review, witness, and verify commissioning tests for communication networks, radio systems, telephone systems, Substation Control Systems (SCS), WTG SCADA, grid compliance systems, metering systems, and VTMS (where applicable).
  • Ensure quality assurance and quality control (QA/QC) of commissioning activities, including verification of documentation and test records.
  • Sign off contractor checklists and ensure timely closure of punch lists and snag items.
  • Draft, implement, and maintain the SCADA Commissioning Plan, defining scope, deliverables, QA/QC requirements, interfaces, and timelines.
  • Provide structured progress reporting to the SCADA Package Manager and Commissioning Manager, highlighting risks, deviations, and mitigation measures.
  • Coordinate closely with SCADA contractors, Electrical Commissioning Managers, and relevant stakeholders to align SCADA commissioning with the overall project commissioning plan.
  • Ensure SCADA systems meet National Grid grid code obligations during commissioning and support compliance verification processes.
  • Support short offshore commissioning assignments as required.
  • Comply with corporate IT security policies, including installation and use of mandatory mobile device management software and adherence to data protection requirements.

Requirements

  • Relevant hands-on experience in SCADA commissioning on large-scale infrastructure or energy projects.
  • Proven experience with Hitachi MicroSCADA and Substation Control Systems (SCS).
  • In-depth knowledge of National Grid requirements and grid compliance processes, including practical experience ensuring SCADA systems meet grid code obligations during commissioning.
  • Ability to independently manage SCADA commissioning interfaces without escalation on fundamental compliance matters.
  • Technical background at B.Sc. level or equivalent in Electrical Engineering, Control Systems, or related discipline.
  • Experience aligned with IPMA B/C, PMP, or equivalent project management methodologies (advantageous).
  • Strong stakeholder management skills and structured documentation practices.
  • Demonstrated ability to operate effectively in high-pressure commissioning environments.
  • Valid GWO certification (mandatory).
  • Willingness and physical ability to undertake short-notice offshore assignments.
Frequently asked questions
A Contract Site Reliability Engineer (SRE) is a professional hired on a temporary basis to ensure the reliability, scalability, and performance of an organization’s infrastructure and applications. They typically work on specific projects or during critical periods to maintain system uptime and optimize operations.
You can find contract SRE roles by filtering job listings by 'Contract' type and using keywords such as 'Site Reliability Engineer' or 'SRE' in the search bar. Our platform allows you to easily sort and apply for relevant contract opportunities.
Contract SRE roles generally require expertise in cloud platforms (AWS, GCP, Azure), automation tools (Terraform, Ansible), container orchestration (Kubernetes, Docker), monitoring systems (Prometheus, Grafana), and strong coding skills in languages like Python, Go, or Bash.
Many contract SRE opportunities offer remote or hybrid work options due to the nature of infrastructure management; however, some contracts may require on-site presence depending on the client’s operational needs.
Working as a contract SRE through Haystack gives you access to a curated list of high-quality contracts, competitive pay rates, flexible work arrangements, and direct communication with employers, helping you find the best fit quickly and efficiently.