Windows Site Reliability Engineer £110K Hybrid LondonOverview:A leading global investment bank is seeking a skilled Windows Site Reliability Engineer to join their London-based Technology team. This is a senior-level leadership role focused on driving platform reliability, automation strategy, and infrastructure modernisation across mission-critical banking systems. This is an excellent opportunity to join an investment banking powerhouse.Role and Responsibilities:

• Lead Platform Engineering and SRE strategy across the organisation
• Build scalable, self-service, and resilient infrastructure platforms
• Drive Infrastructure as Code and CI/CD adoption, automating manual tasks
• Define SLOs and optimise system performance, latency, and scalability
• Lead root cause analysis and remediate technical debt
• Partner with development teams to improve testing, releases, and deployments
• Shape cloud and hybrid migration strategies
• Ensure regulatory, audit, and security compliance
• Act as senior escalation point for high-severity incidents
• Identify cost and efficiency improvements; deputise for senior leadership

Skills and Experience:

• Deep expertise in Microsoft Windows Server internals
• Advanced knowledge of Active Directory, DNS, DHCP, LDAP, and Kerberos
• Extensive experience tuning low-latency, enterprise-scale systems
• Strong background in SRE, DevOps, CI/CD, and Infrastructure as Code principles
• Advanced scripting and development capability (PowerShell, Python, C#)
• Clustering, high-availability, replication, and disaster recovery expertise
• Experience with Git, Terraform, Ansible, Jenkins, and TeamCity
• Strong understanding of security hardening (CIS) within regulated environments
• Deep knowledge of performance monitoring, system internals, and optimisation techniques
• Experience working within financial services or other regulated industries

Desirable:

• Kubernetes and Docker orchestration
• Major cloud platforms (Azure, AWS, GCP)
• Nutanix HCI and VMware ESX
• Enterprise databases (SQL Server, Oracle, Sybase ASE, MongoDB, Snowflake)
• Enterprise monitoring tools (Splunk, Netcool)

Package

• Circa £110,000 + Excellent Package
• London / Hybrid x3 days onsite
• Flexible working considered

Windows Site Reliability Engineer £110K Hybrid London

Site Reliability Engineer | Bristol, Hybrid (3 days onsite, 2 from home) | Up to £95K & Great Benefits

Ready to take on high-impact engineering challenges that actually matter? Want to work on mission-critical systems used across the UKs most high-profile government organisations?

This is your chance to join TwinStream a team of elite engineers who built their careers cracking complex cross-domain problems, and then built a company to do it even better.

Were growing fast. Demand for our services is skyrocketing. And now were looking for a Site Reliability Engineer whos ready to step into a role with real ownership, real influence, and real opportunities to innovate.

Why Youll Love This Role

As our new SRE, youll be right at the heart of our evolving cloud and on-prem platforms. This isnt a keep the lights on jobits a role where youll shape infrastructure strategy, partner closely with software and systems teams, and push performance, reliability, and automation to the next level.

You’ll help us evolve observability, enhance delivery pipelines, eliminate toil, drive reliability metrics, and make smart technical decisions that keep our systems robust as we scale.

If you love solving gnarly problems, improving how things work, and innovating at speedthis is the role for you.

Key Responsibilities of the Site Reliability Engineer:

Collaborating with Software Engineers to improve subsystem reliability and performance

Partnering with System Administrators to automate toil and cut down alert noise

Taking observability to the next levelfind issues before they hit the business

Supporting development environments to boost speed and quality

Researching & evaluating tools to guide key buy-vs-build decisions

Deepening your expertise across multiple technical and business domains

Expanding your knowledge of diverse tech stacks and platforms

What You Bring

Modern configuration management tools (Ansible, Chef or similar)

Terraform

Docker containers & orchestration (Kubernetes, OpenShift, Docker Swarm)

CI/CD tooling (Jenkins or similar)

Monitoring/metrics stack (InfluxDB, Prometheus, Grafana)

MQ messaging (RabbitMQ or other AMQP solutions)

SQL & relational databases

Linux administration & shell scripting

Network security fundamentals

Cloud hosting (ideally AWS: EC2, RDS, S3, Lambda)

Bonus points for:

Experience with Java, Go, Python or similar

Knowledge of cross-domain principles & tech

Service management experience

Hands-on observability implementation

Proven ability to reduce downtime with smart reliability metrics

Why Youll Love Working at TwinStream

Competitive salary, £65k - £95k DOE

8% employer pension contribution

Private medical healthcare (including dental & optical for the whole family)

Flexible working culture

Learning & development owned by YOU

Electric vehicle salary-sacrifice scheme

28 days holiday + bank holidays

Regular team events, plus Christmas & summer parties

Life assurance & cycle-to-work scheme

Security Clearance

Youll need to be eligible for SC and/or DV clearance. Any offer will be subject to successful security screening.

Ready to engineer impact?

Apply now and shape the future of secure, high-performance cross-domain systems.

TPBN1_UKTJ

Location: Caerphilly (with travel to client / Ministry of Defence sites as required)
Clearance: SC (must hold or be eligible); DV highly desirable
Salary: 75,000 + Bonus + Comprehensive Benefits Package

About the Role
A major Defence programme is seeking a highly skilled Senior Network Infrastructure Engineer to lead the design, implementation and ongoing support of secure, resilient, multi-domain network services. You will work across datacentre networks, secure LAN/WAN, SDN enabled virtualised environments, and deployed operational sites - ensuring high availability, compliance and adaptability in a mission critical environment.

Key Responsibilities
* Lead the design, configuration and support of secure multi-site LAN/WAN/SDN infrastructure.
* Configure and optimise enterprise switching platforms (e.g., Cubic M3X S8G / S24G, Cisco ESS3300 based).
* Implement routing protocols including BGP, MPLS, VPLS, and HA technologies.
* Configure firewalls, VPNs, IDS/IPS and boundary protection systems.
* Support virtualised routing and SDWAN technologies (Cisco Catalyst 8000V).
* Act as senior escalation point for complex incidents.
* Ensure compliance with MOD security standards and Secure by Design principles.
* Maintain documentation, diagrams and CMDB records.
* Support accreditation processes (IT Health Checks, CCVAs).
* Contribute to network automation (Python, Ansible, PowerShell).
* Identify opportunities for architectural improvement.

Essential Experience
* Extensive multi-site LAN/WAN experience.
* Advanced configuration skills on Cisco and Cubic platforms.
* Deep knowledge of BGP, MPLS, VPLS and segmentation.
* High availability technologies (HSRP/VRRP equivalents).
* DNS, DHCP, NAT, IP planning.
* Experience in secure or Defence oriented environments.
* ITIL?based service management.

Desirable Experience
* VMware NSX and SDN, SDWAN and virtualised routing, VoIP, QoS, SIEM/log analysis tools. Knowledge of JSP, ISO 27001, NIST. Experience leading technical projects.
* Existing SC/DV clearance.

Qualifications
* Cisco CCNP (required); CCIE desirable.
* ITIL v4 Foundation or above.
* Degree in Computer Science, Network Engineering or equivalent experience.

Personal Qualities
* Strong communicator.
* Analytical problem solver.
* Able to mentor and lead.
* Customer centric and proactive.

If you are a Senior Network Infrastructure Engineer with experience working in or with the Defence sector and looking for an exciting new challenge, please send your CV to me today.

An exciting opportunity for a passionate Linux enthusiast to join a unique, multi-national Information Management function. Ideal candidates should be committed to the future of software defined data centres and open source technologies and have the dedication in supporting our engineering community in a dynamic, fast paced development environment.

Salary: Circa £55,000 depending on experience

Dynamic (hybrid) working: 2-3 days per week on-site due to workload classification.

Security Clearance: British Citizen

This role will require DV Clearance. Restrictions and/or limitations relating to nationality and/or rights to work may apply. As a minimum and after offer stage, all successful candidates will need to undergo HMG Basic Personnel Security Standard checks (BPSS), which are managed by the MBDA Personnel Security Team.

What we can offer you:

• Company bonus: Up to £2,500 (based on company performance and will vary year to year)
• Pension: maximum total (employer and employee) contribution of up to 14%
• Overtime: opportunity for paid overtime
• Flexi Leave: Up to 15 additional days
• Flexible working: We welcome applicants who are looking for flexible working arrangements
• Enhanced parental leave: offers up to 26 weeks for maternity, adoption and shared parental leave -enhancements are available for paternity leave, neonatal leave and fertility testing and treatments
• Facilities: Fantastic site facilities including subsidised meals, free car parking and much more

The opportunity:

We are seeking an experienced HPC Engineer to support the design, implementation and ongoing operation of high-performance computing platforms with a strong Linux system/administration background.

As a HPC engineer you will be responsible for maintaining and optimising infrastructure, providing technical assistance to our user community ensuring reliable, secure and efficient system performance. You will manage and maintain HPC environments including compute nodes, storage and interconnects. The role involves close collaboration within your team and wider stakeholders across the organisation. You will also engage with wider multi-national and multi-cultured teams to drive capability development cross functionally.

• Become part of a unique, well respected team of dedicated people that have been recognised within our company for its professionalism, dedication and flexibility.
• Having the opportunity to work both nationally and internationally, broaden your horizons by embracing the rich cultural diversity of our company.
• Partner with both engineers within MBDA and HPC vendors to ensure HPC services are meeting evolving business needs.
• Be part of an organisation with a values-led culture that is committed to investing in its workforce with a personal development programme.

What we’re looking for from you:

• Strong Linux system administration skills (installation, configuration, patching and troubleshooting)
• Experience of HPC job schedulers and workload managers e.g., SLURM
• Understanding of HPC interconnects such as InfiniBand and cluster networking
• Knowledge of HPC storage systems such as GPFS, NFS
• Familiarity with compilers, libraries and parallel programming models
• Scripting and automation (Bash, Python, Ansible) for administration and monitoring
• Knowledge of monitoring tools (Nagios, Prometheus, Grafana)
• Knowledge of containerisation and virtualisation for HPC (Singularity/Apptainer, Docker, Kubernetes)
• Strong knowledge of data security practices within HPC environments.
• Strong communication skills to provide efficient user support and liaising with vendors.
• Knowledge of IT service management and governance frameworks such as ITIL to follow incident, change and request processes.

Our company: Peace is not a given, Freedom is not a given, Sovereignty is not a given

MBDA is a leading defence organisation. We are proud of the role we play in supporting the Armed Forces who protect our nations. We partner with governments to work together towards a common goal, defending our freedom.

We are proud of our employee-led networks, examples include: Gender Equality, Pride, Menopause Matters, Parents and Carers, Armed Forces, Ethnic Diversity, Neurodiversity, Disability and more

We recognise that everyone is unique, and we encourage you to speak to us should you require any advice, support or adjustments throughout our recruitment process.

Follow us on LinkedIn (MBDA), X Instagram (MBDA_UK) and Glassdoor or visit our MBDA Careers website for more information.

Role/Job Title: PowerShell DSC Engineer ArcGIS Enterprise Automation
Work Location: Wokingham
If Hybrid, how many days are required in office?: 3 days The Role We are seeking a skilled PowerShell Desired State Configuration (DSC) Engineer to automate the endtoend deployment, configuration, and management of ArcGIS Enterprise Base deployments. The candidate will build, maintain, and optimize InfrastructureasCode (IaC) automation workflows to ensure consistent, scalable, and repeatable deployments across onpremises and cloud environments. The role requires deep technical expertise, strong scripting capabilities, and handson experience with ArcGIS Enterprise components. . Key Responsibilities PowerShell DSC Automation Develop, maintain, and enhance PowerShell DSC scripts for automated deployment of ArcGIS Enterprise Base (Portal, Server, Data Store).
Create reusable DSC resources and modules for scalability and standardization.
Implement configuration management practices for lifecycle operations (install, upgrade, patching). ArcGIS Enterprise Automation Automate installation, postinstall configuration, federation, and validation of ArcGIS Enterprise components.
Build automated workflows for ArcGIS Portal initialization, content management, and security setup.
Integrate automation with enterprise systems such as load balancers, certificates, storage, and identity providers. VMSS Automation Design and implement automation workflows for ArcGIS Enterprise configuration within Azure Virtual Machine Scale Sets (VMSS).
Build DSC scripts tailored for autoscaling environments, ensuring that new VM instances automatically configure and register with ArcGIS Server sites.
Automate scaling event responses, ensuring ArcGIS Enterprise components remain fully functional and consistent across all VMSS nodes.
Optimize VMSS deployment images and custom script extensions for high availability GIS workloads. Cloud & Infrastructure Support Support automated deployments in Azure cloud environments.
Manage infrastructure provisioning scripts using Terraform.
Optimize system performance and troubleshoot deployment failures. DevOps & CI/CD Integration Integrate DSC scripts with CI/CD pipelines using Azure DevOps.
Implement automated testing and validation steps for deployment reliability.
Maintain version control and documentation for all automation codebases. Collaboration & Requirements Gathering Work closely with GIS architects, system admins, and clients to gather deployment requirements.
Translate customer needs into automated workflows and repeatable processes.
Provide technical expertise, guidance, and support during implementation and troubleshooting. Required Skills & Qualifications Strong handson experience with PowerShell scripting and Desired State Configuration (DSC).
Proven experience deploying and configuring ArcGIS Enterprise (Portal, Server, Data Store).
Understanding of PKI, SSL certificates, Windows Server administration, and networking basics.
Familiarity with Azure cloud platform and virtualization environments.
Experience with JSON, YAML, and configuration management concepts.
Ability to troubleshoot complex deployment issues independently.
Excellent documentation and communication skills. Preferred Skills Experience with ArcGIS Enterprise 11.x, including distributed architectures.
Exposure to automation tools: Terraform, Ansible, Chef, Puppet, or similar.
Knowledge of CI/CD pipelines and Git-based workflows.
Scripting experience in Python for ArcGIS automation.
Understanding of security hardening and enterprise IT best practices. Employment Details Job Type: Contractor
Experience Level: 10+
Department: GIS/Automation/DevOps

Location: London (Hybrid - 2 days WFH, subject to business need)

Contract: Permanent, Full-Time
Hours: 9:00am - 5:30pm (additional hours as required; on-call to be confirmed)

Overview of Role

The Engineer - Platform Engineering is responsible for developing pipelines and automation scripts to deliver IT infrastructure across both public and private cloud environments, incorporating security best practices throughout.

This role partners closely with infrastructure and application teams to identify automation opportunities, design reusable solutions, and support adoption across the wider IT function. The position also provides operational support for core cloud infrastructure technologies and acts as a third-line escalation point where required.

Key Responsibilities

• Work with infrastructure and application teams to identify automation opportunities and prioritise initiatives.
• Provide effort and impact assessments to support automation roadmaps.
• Design and develop standardised CI/CD pipelines for infrastructure deployment.
• Act as a subject matter expert in infrastructure automation, mentoring colleagues and promoting best practice.
• Integrate tooling (eg, ServiceNow) for automated provisioning and service workflows.
• Design, develop, and deploy modular cloud-based systems.
• Maintain and optimise cloud solutions in line with security policies and best practices.
• Identify and remediate infrastructure vulnerabilities and deployment issues.
• Develop and document cloud standards, guardrails, and best practices.
• Ensure CMDB accuracy using automation wherever possible.
• Operationalise proof-of-concept solutions into production-ready platforms.
• Collaborate with Infrastructure, Application, and Security Architects during solution design.
• Engage with vendors to test and benchmark new technologies.
• Ensure business continuity and disaster recovery standards are Embedded in infrastructure design.
• Act as third-line escalation support for IT Operations.
• Maintain accurate documentation, time tracking, and change management compliance.
• Contribute to process improvement and foster strong working relationships across IT teams globally.

Qualifications

• Bachelor’s degree in a related field (or equivalent experience).
• Microsoft Azure certification preferred.

Experience & Technical Skills

Required:

• Minimum 5 years’ relevant experience.
• Proven experience developing automation solutions from ideation to deployment.
• CI/CD tooling experience.
• Strong Scripting and pipeline development capability.
• Terraform.
• Linux.
• Git version control.
• Automation across public cloud platforms.
• Strong understanding of Information Security best practices.

Preferred:

• GitHub and GitHub Actions.
• Microsoft Azure.
• PowerShell.
• Kubernetes.
• Python.
• Ansible.
• Visual Studio Code.
• Windows Server and Active Directory.
• ServiceNow integrations.
• Packer (server imaging).
• VMware, Cisco UCS, Dell EMC (private cloud infrastructure).
• Cisco ACI, F5, Palo Alto (private cloud networking).

Personal Attributes

• Strong written and verbal communication skills.
• Ability to work effectively in diverse, global teams.
• Resilient and able to work under pressure with shifting priorities.
• Self-starter with strong initiative.
• Detail-oriented with excellent organisational skills.
• Strong analytical and strategic problem-solving ability.
• Committed to continuous improvement and challenging the status quo.
• Comfortable handling sensitive information with discretion.

£Up to £60,000 GBP Competitive Bonus Hybrid WORKING Location: Newcastle Upon Tyne, North East - United Kingdom Type: Permanent Senior DevOps Engineer Our client is a leading technology consultancy, ranked No. 1 in its industry and included for over 20 years on Fortune’s World’s Most Admired Companies . As a Senior DevOps Engineer , you will play a key role in designing, building, and automating secure, scalable environments to support the development and delivery of enterprise software solutions. Working within multi-skilled agile teams, you will implement CI/CD pipelines, infrastructure-as-code, and automated testing processes, ensuring delivery teams can develop, test, and deploy features efficiently and reliably. This is a client-facing, delivery-focused role suited to experienced DevOps engineers who are comfortable leading technical initiatives, collaborating across teams, and driving best practices in automation, cloud deployment, and operational resilience. You’ll have the opportunity to: Design, implement, and maintain CI/CD pipelines to support agile software delivery Automate infrastructure provisioning and environment setup using tools such as CloudFormation, AWS CDK, Terraform, or Ansible Configure and maintain tools for source control, testing, performance, and security, including GitLab, Jenkins, Smartbear, and SonarQube Implement system monitoring and alerting using tools such as CloudWatch, AppDynamics, Kibana, Splunk, or Prometheus Work with cloud and virtualization technologies to deliver secure, scalable environments Collaborate with Scrum teams to integrate automated testing and continuous delivery practices Your Responsibilities: Support development teams by automating workflows, integrations, and deployments Ensure development, testing, and production environments are robust, resilient, and scalable Apply Infrastructure-as-Code practices to provision and manage environments Monitor and maintain operational performance, security, and resilience of deployed systems Work closely with team leads to implement DevOps practices and facilitate continuous improvement Contribute to technical design, architecture, and roadmap discussions for DevOps initiatives Mentor and guide other engineers on DevOps best practices and tooling Key Requirements: Proven experience in Continuous Integration and Continuous Deployment with hands-on implementation Infrastructure-as-Code experience using CloudFormation, AWS CDK, Terraform, or similar Experience with automated software QA, system monitoring, and alerting Knowledge of public/private cloud environments and virtualization technologies Proficiency with Linux administration and one or more scripting languages (Python, Node.js, TypeScript, Bash, PowerShell) Familiarity with RESTful APIs and their integration into DevOps pipelines Experience working in Agile and Lean software delivery environments Strong collaboration and communication skills across functional and technical teams You will gain exposure with: Cloud-native deployment and containerization technologies Advanced automation for development, testing, and operations workflows Enterprise-scale DevOps practices in highly regulated client environments Continuous improvement of security, performance, and operational resilience Leadership opportunities in introducing and defining DevOps practices across teams Why Join?: Work on high-profile, enterprise-scale programmes delivering real-world impact Develop your career as a Senior DevOps Engineer in a world-leading, highly admired technology consultancy Collaborate with multi-skilled teams across cloud, development, and operations functions Benefit from structured learning, mentoring, and career progression opportunities Be part of a collaborative, inclusive, and ambitious consulting culture Interested? Apply Now! Reference: AON/AMC/PGDevops #aaon TPBN1_UKTJ

Infrastructure & Operations
Hybrid - Haywards Heath, West Sussex
Generous Benefits + 15% Bonus

???Are you a proven IT leader ready to unite a skilled team of 7 (senior techs + entry-level engineers) in a dynamic data centre environment? Step up to lead software/application support, from VMs/bare metal to stakeholder-facing ops, driving DevOps evolution, breaking silos, and pushing boundaries beyond day-to-day delivery. Enjoy a competitive salary, 15% bonus, 22+ days holiday, pension, onsite gym, and hybrid working.

Key Responsibilities

• ???Lead, mentor, and unite your team - breaking silos, building collaboration, coaching skills, setting goals, and creating an engaging environment.
• Make decisions, empower members, support the Data Centre Manager, and drive proactive improvements (e.g., tool evolution like Zabbix/Grafana).
• Oversee third-line support, system/infrastructure development, platform stability, and translate stakeholder needs into agile solutions.

Key Skills & Requirements

• 3-5 years leading technical teams + 5+ years IT (extensive Linux admin across Debian/CentOS/RHEL flavours).
• Agile/DevOps experience; tools like Ansible, Puppet, Zabbix (FAI/Slurm ideal); ITIL Foundation.
• Strong stakeholder communication, problem-solving, and a broader data centre vision to lead effectively.
• Desirable: OpenStack, Kubernetes, CI/CD, Docker, scripting, cloud/virtualisation, hardware (storage/CPU/GPU).

If you’ve held any of these roles or used these technologies/skills, this role could be a great fit: Services Team Leader, Infrastructure Lead, DevOps Manager, Linux Ops Lead, Data Centre Supervisor; Linux (Debian/RHEL), Ansible, Puppet, Zabbix, Slurm, Agile, ITIL, DevOps tools.

Deerfoot Recruitment Solutions Ltd is a leading independent tech recruitment consultancy in the UK. For every CV sent to clients, we donate £1 to The Born Free Foundation. We are a Climate Action Workforce in partnership with Ecologi. If this role isn’t right for you, explore our referral reward program with payouts at interview and placement milestones. Visit our website for details. Deerfoot Recruitment Solutions Ltd is acting as an Employment Agency in relation to this vacancy.

Are you passionate about automation, cloud, and infrastructure done right?

We’re working with a prestigious international law firm looking for a talented Platform Engineer to join their global IT function in London. If you’re someone who enjoys building smart, secure, and scalable infrastructure through code, this could be your next move.

The Essentials

• Role: Platform Engineer
• Location: Central London (hybrid working model - 3 days in the office)
• Type: Permanent
• Industry: Global law firm
• Team: Working closely with global infrastructure, application, and security teams

Why this role?

• Join a forward-thinking IT function focused on automation, efficiency, and modern cloud delivery
• Play a key role in shaping and executing global cloud strategy
• Exposure to a broad tech stack across public cloud, private data centres, and enterprise tooling
• Work in a supportive and collaborative team with real scope to influence best practices and innovation
• Be part of a firm that genuinely invests in tech and values expertise

What you’ll be doing

• Designing and building infrastructure pipelines and scripts to automate delivery across public and private cloud platforms
• Working with teams across infrastructure, security, and applications to identify and implement automation opportunities
• Creating reusable solutions and mentoring others on infrastructure-as-code best practices
• Supporting key cloud platforms (particularly Azure), integrating with tools like ServiceNow, and enhancing operational resilience
• Contributing to cloud governance, documentation, and technical standards across the firm

What you’ll bring

• Previous experience working as a Platform Engineer/DevOps Engineer within mid to large scale multinational professional service environments.
• Hands-on experience with Terraform, CI/CD
• Experience automating into public cloud providers
• Current experience working with Microsoft Azure
• Experience developing pipelines and scripts
• A proactive, collaborative mindset with a passion for automation and continual improvement

Nice to have

• Microsoft Azure Certification, preferred
• Experience with Kubernetes, Ansible, PowerShell, python

Interested?

This is a fantastic opportunity to secure a pivotal role in a leading global organisation.

If you meet the criteria and are excited about this opportunity, apply now to discuss your next move with our specialist tech recruitment team.

Our client is an equal opportunity employer. They celebrate diversity and are committed to creating an inclusive workplace where all employees feel valued and respected. We encourage applications from candidates of all backgrounds.

Senior Network Infrastructure Engineer - Defence Programme Location: Caerphilly (with travel to client / Ministry of Defence sites as required)Clearance: SC (must hold or be eligible); DV highly desirableSalary: 75,000 + Bonus + Comprehensive Benefits PackageAbout the RoleA major Defence programme is seeking a highly skilled Senior Network Infrastructure Engineer to lead the design, implementation and ongoing support of secure, resilient, multi?domain network services. You will work across datacentre networks, secure LAN/WAN, SDN?enabled virtualised environments, and deployed operational sites - ensuring high availability, compliance and adaptability in a mission?critical environment.Key Responsibilities Lead the design, configuration and support of secure multi?site LAN/WAN/SDN infrastructure. Configure and optimise enterprise switching platforms (e.g., Cubic M3X S8G / S24G, Cisco ESS3300?based). Implement routing protocols including BGP, MPLS, VPLS, and HA technologies. Configure firewalls, VPNs, IDS/IPS and boundary protection systems. Support virtualised routing and SD?WAN technologies (Cisco Catalyst 8000V). Act as senior escalation point for complex incidents. Ensure compliance with MOD security standards and Secure by Design principles. Maintain documentation, diagrams and CMDB records. Support accreditation processes (IT Health Checks, CCVAs). Contribute to network automation (Python, Ansible, PowerShell). Identify opportunities for architectural improvement.Essential Experience Extensive multi?site LAN/WAN experience. Advanced configuration skills on Cisco and Cubic platforms. Deep knowledge of BGP, MPLS, VPLS and segmentation. High?availability technologies (HSRP/VRRP equivalents). DNS, DHCP, NAT, IP planning. Experience in secure or Defence?oriented environments. ITIL?based service management.Desirable Experience VMware NSX and SDN, SD?WAN and virtualised routing, VoIP, QoS, SIEM/log analysis tools. Knowledge of JSP, ISO 27001, NIST. Experience leading technical projects. Existing SC/DV clearance.Qualifications Cisco CCNP (required); CCIE desirable. ITIL v4 Foundation or above. Degree in Computer Science, Network Engineering or equivalent experience.Personal Qualities Strong communicator. Analytical problem?solver. Able to mentor and lead. Customer centric and proactive.If you are a Senior Network Infrastructure Engineer with experience working in or with the Defence sector and looking for an exciting new challenge, please send your CV to me today.

Senior Infrastructure & Directory Services Engineer - Defence ProgrammeLocation: Caerphilly (with travel to Defence/Ministry of Defence sites as required)Clearance: SC (must hold or be eligible); DV highly desirablePackage: £65,000 + Bonus + comprehensive benefitsWorking Pattern: Hybrid (Mon & Fri optional WFH)This is a fantastic opportunity for you, a Senior infrastructure and Director Services Engineer - or similar, to join a long?established, financially robust technology provider with comprehensive experience delivering secure IT solutions across the UK public sector.The OpportunityA major Defence customer is undertaking an extensive programme to build a secure, on?premise, multi?domain virtualised infrastructure that underpins mission?critical and operational capabilities. As a Senior Infrastructure & Directory Services Engineer, you will design, implement, and support enterprise services across several secure domains - including Active Directory, identity services, Windows Server, DNS/DHCP, PKI, authentication platforms, and related Microsoft ecosystem components.Key Responsibilities- Architect, manage, and maintain multi?site Active Directory environments- Administer DNS, DHCP, and PKI in secure operational environments- Design and enforce Group Policy Objects (GPOs)- Manage Web Application Proxy (WAP), RDS, and federation services- Ensure alignment with MOD security standards- Participate in design reviews and Change Advisory Boards (CAB)- Work closely with security, cloud, networking, Linux, and virtualisation teams- Monitor performance using Splunk, event logging, and PowerShell automation- Automate tasks using PowerShell (essential) or Ansible (desirable)Essential Skills & Experience- Multi?site Active Directory support- Windows Server, DNS, DHCP- GPO design and troubleshooting- PKI and certificate services- Web Application Proxy & RDS- Strong PowerShell scripting- Working in a Defence or Government environmentDesirable Skills- Defence sector experience- VMware vSphere, vCenter, ESXi; awareness of NSX?T- SIEM/monitoring experience- Ansible or other automation tools- Linux/Unix integration with AD- Secure WAN technologies (BGP/MPLS/VPN)- Existing SC/DV clearanceQualifications- Microsoft Identity & Access Administrator (or equivalent)- ITIL v4 Foundation or higher- Degree in Computer Science or equivalent experiencePersonal Attributes- Customer?focused and committed to service excellence- Strong ownership and reliability- Willingness to challenge established practices- Driven, proactive, and collaborativeIf you are a Senior Infrastructure and Director Services Engineer or similar, with a background in Defence, then please send your CV to me today as this will go quickly.

Site Reliability Engineer (SRE) - Defence / National Security - £75k - Farnborough - Hybrid

A permanent opportunity for an experienced Site Reliability Engineer who enjoys building secure, automated, and highly reliable platforms. This role sits within a defence and national security environment, working on modern infrastructure where automation, resilience, and secure-by-design principles are fundamental.

You’ll work closely with platform engineers, infrastructure teams, and operational stakeholders to take requirements from early design and proof-of-concept through to production. The role blends hands-on engineering with technical design, offering real influence over tooling, standards, and DevOps ways of working. It suits someone curious, detail-oriented, and comfortable working in complex, regulated environments.

What you’ll be doing

• Designing, delivering, upgrading, and maintaining core platforms, services, and automations
• Building and improving monitoring, alerting, and observability platforms
• Designing secure infrastructure using automation-first approaches
• Creating and productionising proofs of concept for new tools and technologies
• Diagnosing and resolving performance, reliability, and availability issues
• Supporting architecture, documentation, and non-functional requirements
• Mentoring engineers and helping improve DevOps and SRE practices

Essential experience

• Strong experience with Linux (Ubuntu) and Windows Server environments
• Hands-on scripting skills (Bash, Python, PowerShell or similar)
• Proven experience with automation and DevOps tooling (Ansible, Terraform, CI/CD, Git)
• Experience working with Azure or similar cloud platforms
• Solid understanding of infrastructure reliability, monitoring, and incident response
• Strong problem-solving skills and ability to work across multiple priorities
• Willingness to work in secure, regulated environments (SC eligibility required)

Desirable experience

• Infrastructure-as-Code lifecycle and best practices
• Containerisation and orchestration (Docker, Kubernetes)
• Configuration management and desired state tooling
• Application and platform monitoring tools (Splunk, Nagios or similar)
• Experience hardening systems and conducting security assessments
• Understanding of Agile and DevOps principles in practice

A collaborative, inclusive culture with strong benefits including competitive pay, bonus, pension, private healthcare, generous leave, professional development, wellbeing perks, and modern on-site facilities.

Windows Engineer Contract - Hybrid (2 days onsite in Leeds).This is an initial 3 month contract, paying £500 per day, inside IR35, 2 days a week onsite in central Leeds.

Key Responsibilities

• Manage and support Windows Server environments from 2012 to 2025
• Build, configure and maintain VMware and VCF based infrastructure
• Administer Azure services with a focus on identity, compute and automation
• Use PowerShell to automate routine tasks, create scripts, and improve operational efficiency
• Oversee patching cycles, WSUS administration and vulnerability remediation
• Create and manage Group Policies
• Complete new server builds including configuration, testing and documentation
• Implement Windows hardening standards to strengthen security posture
• Maintain clear technical documentation for builds, processes and operational tasks
• Support configuration management using Chef or Ansible where required

About You

• Strong background in Windows Server engineering
• Experience working in large or complex server environments
• Confident with VMware, VCF and Azure services
• Skilled in PowerShell scripting and automation
• Good understanding of patching, WSUS, compliance and security standards
• Able to create and manage GPOs and follow structured build processes
• Comfortable working with infrastructure hardening and best practice frameworks
• Strong communication and documentation skills
• Ability to work independently and take ownership of technical domains

Why Join

• Opportunity to work with a modern Windows and virtualisation estate
• A role with autonomy, responsibility and the chance to shape engineering standards
• Supportive team environment where engineering quality matters

This is an urgent requirement so please apply immediately to be considered.

Site Reliability Engineer Bristol, Hybrid (3 days onsite, 2 from home) Up to £95K & Great Benefits

Ready to take on high-impact engineering challenges that actually matter? Want to work on mission-critical systems used across the UK s most high-profile government organisations?

This is your chance to join TwinStream a team of elite engineers who built their careers cracking complex cross-domain problems, and then built a company to do it even better.

We re growing fast. Demand for our services is skyrocketing. And now we re looking for a Site Reliability Engineer who s ready to step into a role with real ownership, real influence, and real opportunities to innovate.

Why You ll Love This Role

As our new SRE, you ll be right at the heart of our evolving cloud and on-prem platforms. This isn t a keep the lights on job it s a role where you ll shape infrastructure strategy, partner closely with software and systems teams, and push performance, reliability, and automation to the next level.

You’ll help us evolve observability, enhance delivery pipelines, eliminate toil, drive reliability metrics, and make smart technical decisions that keep our systems robust as we scale.

If you love solving gnarly problems, improving how things work, and innovating at speed this is the role for you.

Key Responsibilities of the Site Reliability Engineer:

• Collaborating with Software Engineers to improve subsystem reliability and performance
• Partnering with System Administrators to automate toil and cut down alert noise
• Taking observability to the next level find issues before they hit the business
• Supporting development environments to boost speed and quality
• Researching & evaluating tools to guide key buy-vs-build decisions
• Deepening your expertise across multiple technical and business domains
• Expanding your knowledge of diverse tech stacks and platforms

What You Bring

• Modern configuration management tools (Ansible, Chef or similar)
• Terraform
• Docker containers & orchestration (Kubernetes, OpenShift, Docker Swarm)
• CI/CD tooling (Jenkins or similar)
• Monitoring/metrics stack (InfluxDB, Prometheus, Grafana)
• MQ messaging (RabbitMQ or other AMQP solutions)
• SQL & relational databases
• Linux administration & shell scripting
• Network security fundamentals
• Cloud hosting (ideally AWS: EC2, RDS, S3, Lambda)

Bonus points for:

• Experience with Java, Go, Python or similar
• Knowledge of cross-domain principles & tech
• Service management experience
• Hands-on observability implementation
• Proven ability to reduce downtime with smart reliability metrics

Why You ll Love Working at TwinStream

• Competitive salary, £65k - £95k DOE
• 8% employer pension contribution
• Private medical healthcare (including dental & optical for the whole family)
• Flexible working culture
• Learning & development owned by YOU
• Electric vehicle salary-sacrifice scheme
• 28 days holiday + bank holidays
• Regular team events, plus Christmas & summer parties
• Life assurance & cycle-to-work scheme

Security Clearance

You ll need to be eligible for SC and/or DV clearance. Any offer will be subject to successful security screening.

Ready to engineer impact?

Apply now and shape the future of secure, high-performance cross-domain systems.

Cloud DevOps Engineer x 2 - Manchester (2 Days Onsite)

Up to £55,000 Up to £71,000 Hybrid Working

MUST have active SC clearance

We’re hiring two Cloud DevOps Engineers to join high-performing Cloud Pods delivering enterprise-grade AWS platforms across the UK.

If you enjoy building cloud platforms properly - automation-first, infrastructure-as-code driven, secure by design - this is for you.

The Role

You’ll be part of a focused Cloud Pod, working in agile teams to design, build and evolve modern AWS platforms.

Hands-on engineering across:

• AWS (enterprise environments)
• Terraform & Infrastructure as Code
• Kubernetes (EKS)
• Ansible
• GitLab & CI/CD pipelines
• AWS Landing Zone Accelerator (LZA)
• Hybrid cloud (including AWS Outposts)

This isn’t ticket-based support work. It’s platform engineering with impact.

You’ll help drive: Reusable, standardised cloud platforms Secure landing zones (SCPs, CloudFormation, YAML) Monitoring, patching & lifecycle management DevOps best practice & automation Continuous improvement across architecture & engineering

What You’ll Bring

• Active SC clearance
• Strong hands-on AWS experience
• Terraform & automation mindset
• Kubernetes (EKS) knowledge
• CI/CD pipeline experience
• Solid infrastructure & networking fundamentals
• Experience working in agile environments
• Familiarity with ITIL frameworks

Bonus if you’ve worked with:

• Landing Zone Accelerator (LZA)
• Identity Manager
• Enterprise multi-account AWS environments

Why Join?

• Collaborative, supportive engineering culture
• Genuine investment in training & certifications
• Real enterprise cloud challenges
• Clear progression routes
• Hybrid working - 2 days per week in Manchester

Two Opportunities AvailableCloud DevOps Engineer - Up to £55kSenior Cloud DevOps Engineer - Up to £75k

RSG Plc is acting as an Employment Agency in relation to this vacancy.

(Apply online only) per day - Umbrella only
Dates: 23/02/2026 - 31/07/2026
Mostly remote but will need to be flexible to travel to London, Manchester and Leicester as required

• An infrastructure operations engineer is responsible for the preparation and support of IT operations solutions and services, physical or virtual.
• They do so according to industry and organisational best practices, standards, service requirements and Key Performance Indicators (KPIs) throughout the product life cycle.
• Create and maintain documentation.
• Perform all routine tasks according to process and checklists.
• Monitor infrastructure and applications services.
• Alert and take appropriate action

Required Skills

Asset and configuration management.
Availability and capacity management.
Change Management.
Coding and scripting.
Continual service improvement.
Incident management.
Problem management.
Service management framework knowledge.
Testing.
Technical understanding

Technical skills

• Cloud Platforms: Azure / AWS / GCP (compute, networking, IAM, storage)
• OS & Virtualisation: Linux (RHEL/Ubuntu), Windows Server, VMware / Hyper?V
• Automation & IaC: Terraform, Ansible, PowerShell, Bash
• CI/CD & DevOps Tooling: Azure DevOps / GitHub Actions / Jenkins
• Monitoring & Observability: Prometheus, Grafana, ELK/EFK, Azure Monitor
• Networking & Security: Firewalls, Load Balancers, VPNs, Zero Trust, Identity & Access Management

All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!

Job Requirements

Position description:

Responsible for architecting and implementing full end-to-end Teamcenter DevOps pipelines. The pipelines will deploy customized customer-specific solutions to running Teamcenter systems following industry-standard practices and innovative technology usage. The ideal candidate will have

1. Strong fundamental understanding of DevOps concepts and underlying core-components used in DevOps pipelines like Orchestrator, Artifact repository, Source code management etc.
2. Good familiarity and experience with DevOps pipeline orchestration tools like Jenkins, Bamboo, Azure DevOps etc.
3. General software architecture experience good understanding of software architectures, design-patterns, and standards. Familiarity with enterprise friendly software architecture aspects is another added advantage e.g. SSL, communications, firewalls, proxy usage etc.
4. Familiarity with Teamcenter software landscape and architectures is a must.
5. Experience with modern containerization technologies like Docker.
6. Experience with standard out-of-the-box DevOps tools like Nexus, JFrog, Maven, ANT etc.
7. Usage of command-line tools and automated/silent execution of DevOps tools.
8. Excellent scripting skills with modern scripting/programming languages, preferably Python or Ansible.
9. Prior experience with other TC DevOps solutions would be added advantage.

Work Experience

• Strong problem-solving skills and logical thinking ability.
• Good aptitude and motivation for learning, including self-learning technical concepts. Candidate must be good in reviewing and learning official technical documentation for industry standard tools.
• Familiarity and high level of confidence with at least one programming language, preferably Python or Java.
• Good understanding of software architectures and communication protocols.
• Good to have points:
• Understanding of background services and automation skills.
• Familiarity with command-line tools.
• Basic understanding of containerization technologies, for example: Docker.
• UK national with ability to get SC clearance

My client is looking for a Kubernetes Specialist to work 3 days onsite in Sheffield (Candidate can be based in Leeds to work 3 days a week in office in Leeds).

Job Description

Top Skils- Kubernetes - 5+ years experience

Design, deploy, and manages containerized applications within Kubernetes clusters, ensuring high availability, security, and scalability. Key requirements include proficiency in Kubernetes architecture, Linux networking, CI/CD pipelines, IaC (Terraform), and scripting (Go/Python). The role involves optimizing cluster performance, managing services, and supporting developer workflows. wiz.io +5

Key Responsibilities

• Cluster Management: Deploy, scale, and maintain production-grade Kubernetes clusters.
• Infrastructure as Code (IaC): Automate environment provisioning using Terraform or Ansible.
• CI/CD & GitOps: Build and manage pipelines using tools like Jenkins, GitLab CI/CD, Argo CD, or Flux.
• Networking & Security: Configure networking (Ingress, CNI, service mesh) and implement security best practices (RBAC, network policies).
• Monitoring & Observability: Implement logging and monitoring solutions (Prometheus, Grafana, Fluentd).
• Troubleshooting: Diagnose and resolve cluster issues related to networking, storage, and application performance

Required Skills and Qualifications

• Kubernetes Expertise: Deep knowledge of Kubernetes components, architecture, and APIs.
• Containerization: Proficiency with Docker and container runtimes.
• Cloud Experience: Strong experience with public cloud providers (AWS, Azure, or GCP).
• Scripting/Coding: Ability to write automation scripts in Bash, Python, or Go.
• Linux Knowledge: Strong understanding of Linux system administration.
• Certifications: Certified Kubernetes Administrator (CKA) or Certified Kubernetes Application Developer (CKAD) preferred.

Ideal Candidate Profile

• 5+ years of experience managing Kubernetes in production.
• Experience with GitOps workflows and managing infrastructure at scale.
• Excellent problem-solving skills and a focus on automation.

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

initial 6 month contract - 575 - 650 a day - outside IR35

Fully onsite role based - Newbury - (9-day fortnight, every other Friday off)

Active DV Clearance is essential

We are seeking an experienced Contract Juniper Network Engineer to design, implement, and support enterprise-grade LAN/WAN/WLAN environments.

The successful candidate will play a key role in delivering secure, highly available, and scalable network solutions leveraging Juniper technologies, with integration into cloud platforms such as Amazon Web Services (AWS) and Microsoft Azure.

Key Responsibilities

• Design and implement enterprise LAN/WAN/WLAN networks using Juniper technologies
• Plan and deploy high-availability, resilient, and scalable network architectures
• Integrate on-premise infrastructure with cloud platforms (AWS, Azure)
• Configure and manage Juniper routers, switches, and firewalls
• Implement and administer network security solutions
• Provide advanced troubleshooting and root-cause analysis across network environments
• Monitor, maintain, and optimise network performance and capacity
• Implement network automation using scripting (e.g., Python, Ansible, or similar)
• Produce and maintain:

• Network diagrams
• Standard Operating Procedures (SOPs)
• Runbooks
• Configuration and support documentation

• Participate in an on-call rota (details to be confirmed)

Required Skills & Experience

• Proven experience designing and implementing enterprise networks using Juniper technologies
• Strong hands-on configuration experience with:

• Juniper routers (MX series or equivalent)
• Juniper switches (EX/QFX series)
• Juniper SRX firewalls

• Solid understanding of:

• Routing protocols (BGP, OSPF, IS-IS)
• VLANs, MPLS, VPNs
• High-availability and failover technologies

• Experience integrating enterprise networks with AWS and/or Azure
• Strong troubleshooting capability in complex, multi-site environments
• Experience implementing security controls and firewall policies
• Network automation experience (Python, Ansible, Junos automation, or similar)
• Ability to produce clear technical documentation

Desirable Experience

• Experience working in secure or highly regulated environments
• Exposure to multi-site enterprise or critical infrastructure networks
• Familiarity with monitoring and performance management tools

This is an urgent role so if you’re interested please send your CV asap

5 days on-site in Hursley or Leicester

12 months

SC Clearance required

UMBRELLA Only

Role Description:

• We are seeking a skilled and experienced Database Administrator (DBA) Specialist to join our team.
• The DBA Specialist will be responsible for the design, implementation, maintenance, and performance of our critical database systems.
• This role requires a deep understanding of database technologies, strong problem-solving abilities, and a commitment to ensuring data integrity and availability.

Responsibilities:

• Develop and maintain database schemas, tables, indexes, and stored procedures.
• Ensure database scalability and performance.
• Perform routine database maintenance tasks, including backups, restores, and patching.
• Monitor database performance and troubleshoot issues.
• Manage database security and access control. Implement and maintain high availability and disaster recovery solutions.

Required Skills:

• Proven experience as a DBA Specialist or similar role.
• Strong understanding of database concepts and principles.
• Proficiency in one or more database management systems (e.g., Oracle, Microsoft SQL Server, MySQL, PostgreSQL, MongoDB).
• Experience with database performance tuning and optimization.
• Knowledge of database security best practices.
• Familiarity with cloud-based database services (e.g., AWS RDS, Azure SQL Database, Google Cloud SQL) is a plus.
• Experience with scripting languages (esp. PowerShell) is highly desirable.
• Experience with database replication, high availability, and disaster recovery solutions.
• Awareness of Apache Tomcat & JVM
• Experience of overcoming VLDB challenges.
• Excellent problem-solving and analytical skills.
• Strong communication and interpersonal skills.
• Ability to work independently and as part of a team.
• Detail-oriented and organized.
• Ability to manage multiple tasks and priorities.
• Strong understanding of SQL.
• Knowledge of operating systems, such as Linux and Windows.
• Experience with Automation such as Ansible.
• Some working knowledge of NetAPP OnTap and SnapCenter is highly desirable.

All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!

Rate: 380 a day

IR35 Status: Inside IR35

Location: Wokingham Hybrid in office three days a week

Duration: 6 months duration

Clearance: SC Clearance required

You will join a global IT Consultancy bringing digital transformation to a public sector agency

Role Description:

Knowledge, Experience & Technical Expertise

• Proven track record in the design, construction, and management of Red Hat Enterprise Linux versions 8, 9, and 10.
• Demonstrated success in the design and management of Red Hat Satellite and Ansible Automation Platform.
• Experienced in managing VMware solutions.
• Proven leadership in guiding a small team of Red Hat subject matter experts (SMEs).
• Strong understanding of network protocols and topologies.
• Extensive customer-facing experience in an IT service role.
• Methodical and positive approach to problem-solving.
• Proficient in working effectively both independently and as part of highly productive small to medium-sized teams in an ITIL/DevSecOps based support environment.
• Experience with business-critical real-time systems, ensuring high levels of availability through proactive actions.
• Demonstrated accountability in seeing issues through to successful resolution. - Skilled in producing technical reports and documentation for both technical and non-technical audiences.
• Strong communicator with excellent writing skills.

Essential Experience:

• Proven experience in a production IT environment, managing enterprise IT infrastructure, hardware, hosting services, and network areas.
• Ability to write and review architectural design documents.
• Knowledge of industry trends and new technologies, with the ability to apply these trends to architectural needs.