1,105 3rd Line Infrastructure Engineer jobs in the United Kingdom
3rd Line Infrastructure Engineer
Posted today
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**Senior 3rd Line Infrastructure Engineer**
Location: Huntingdon, Cambridgeshire UK
Security Clearance Level: High -DV 'Developed Vetting'
**UNLEASH YOUR POTENTIAL**
We are looking for an experienced Senior Infrastructure Engineer to join our 3rd Line Service Operations team who is able to work collaboratively with colleagues and our customer in an exciting and critical LAN/WAN environment. A key requirement of this role is to deliver technical service in a dynamic ITIL environment as well as incorporating Agile change delivery.
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams in the UK to address some of the most complex problems in defence, government, safety and security, and transportation. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
**Are you ready for your next career challenge?**
We operate a high paced and exciting collaborative working environment where the work you do is normally customer facing and has demonstrable real world impact. As such we value our staff highly and are committed to training, career development and providing opportunities to progress.
**WHAT SETS YOU APART:**
+ Demonstrable experience of Windows Server based infrastructure at an enterprise level.
+ Demonstrable experience of RedHat Linux OS based infrastructure as well as general Linux support skills
+ Experienced in the management and maintenance of VMWare based virtualised estates.
+ Deployment and support experience of Hyper Converged Infrastructure.
+ Management and troubleshooting of storage technologies including NetApp & Dell.
+ Management and troubleshooting of Active Directory within an on premise environment.
+ Development of a customer desktop build with a number of bespoke/legacy applications.
+ Packaging and deployment of applications.
+ Experience of Microsoft Exchange management & support from 2013 onwards.
+ Experience of MS SQL Server and SQL Database Clustering.
+ Experience of Veeam Backup technology.
+ Experience of Ivanti Device & Application Control implementation.
+ Experience of patch management including analysis and deployment.
+ Excellent communications and organisational skills as well as the ability to work independently as well as in a team.
+ Experience in ITIL ICT service delivery and SAFE Agile delivery of critical infrastructure.
+ Experience of working under pressure to meet deadlines while handling multiple priorities.
+ Understanding of the importance of stakeholder management and organisational acumen.
+ Demonstrable ability to adapt to new technologies, skillsets and to learn quickly.
+ Worked in a business or safety critical environment previously.
**YOU MIGHT ALSO HAVE:**
+ Exposure or experience of working with F5 Load Balancing technology
+ Exposure or experience of CICD pipeline activities
+ Experience of build, test and ongoing management of a VDI solution using VMWare Horizon.
**CLEARANCE REQUIRED:**
+ DV
**ADDITIONAL INFORMATION:**
+ Requirement to have or undergo high level clearance
+ Work location will be at a customer site
+ Ability to travel to our customer site in Huntingdon, UK
**Are you ready to make an impact? Begin your journey of a flourishing and meaningful career, share your CV with us today!**
**What we do for you:**
At Leidos we are PASSIONATE about customer success, UNITED as a team and INSPIRED to make a difference. We offer meaningful and engaging careers, a collaborative culture, and support for your career goals, all while nurturing a healthy work-life balance.
We provide an employment package that attracts, develops and retains only the best in talent. Our reward scheme includes:
- Contributory Pension Scheme
- Private Medical Insurance
- 33 days Annual Leave (including public and privilege holidays)
- Access to Flexible benefits (including life assurance, health schemes, gym memberships, annual buy and sell holidays and a cycle to work scheme)
- Dynamic Working
Commitment to Diversity:
We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging, welcoming all perspectives and contributions, and providing equal access to opportunities and resources for everyone. If you have a disability or need any reasonable adjustments during the application and selection stages please let us know, and we will respond in a way that best fits your needs.
Who We Are:
Leidos UK & EUROPE - we work to make the world safer, healthier, and more efficient through technology, engineering and science.
Leidos is a growing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transformation in frontline services, our work in the United Kingdom includes addressing some of the most complex problems in defence, healthcare, government, safety and security, and transportation.
What Makes Us Different:
Purpose: you can use your passion and abilities at Leidos to keep the people you care about safe. We are at the forefront of machine learning, AI, cyber security and solutions. Using your skills in the technology frontline by helping to build a safer world. You can inspire change.
Collaboration: having flexibility to do your job is one of our core benefits, enabling you to become part of our extraordinary team. We have been empowering our people to work flexibly for years. Whether you work from home, the office or on customer sites, we will give you the digital tools and the flexibility to work smarter and align your needs and ours.
People: Leidos empowers people from every background to be themselves and gives you the tools to learn new skills by enabling growth whilst developing. We believe that extraordinary people need opportunities to grow, to be inspired and to inspire others. At Leidos, we invest in technical academies, career rotations and a career development plans that enhance your future.
**Original Posting:**
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
**Pay Range:**
The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
REQNUMBER: R-00159221
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.
3rd Line Infrastructure Engineer
Posted today
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Job Description
**3rd Line Infrastructure Engineer**
We are in search of a **3rd Line Infrastructure Engineer** to join Leidos UK within the Defence Team, based Herefordshire.
In response to the success of the growing business, Leidos requires a number of 3rd Line Infrastructure Engineers to support this expansion by helping to create compelling solutions for our existing and future customers.
**Responsibilities**
The preferred candidate will be primary responsible for the operation and maintenance of MS System Centre Configuration Manager(SCCM)/ Microsoft Endpoint Configuration Manager (MECM) but also be demonstrate effective application of Infrastructure and extensive knowledge across a variety of technologies such as Microsoft Windows Server (including services such as AD, DNS, DHCP) and virtualisation (Hyper-V) , Microsoft Stack Technologies (Sharepoint, SQL Server, Skype for Business / Teams), networking technologies and storage.
The role will provide technical exposure variance across both outcomes-based project activities and operational (Business as Usual) support activities. The duties of the role will include on-site support and out of hours on call support.
You will be expected to contribute towards the creation and ongoing maintenance of technical documentation and provide material to support the project work or the operational support service.
**Who do we need?**
We are looking for someone with a passion for infrastructure, ideally from an operational support services background. You will be self-motivated and be able to work autonomously to achieve day to day objectives with significant results on project or operational deliverables, whilst also owning a variety of activities ensuring compliance with project milestones and customer KPI's and SLA's. You must be an effective communicator, comfortable directly engaging with customers and colleagues. You must also demonstrate an analytical and systematic approach to technical challenges.
**Ideally, you will:**
+ Have excellent knowledge of MS System Centre Configuration Manager/ Microsoft Endpoint Configuration Manager (MECM);
+ Have excellent knowledge of Virtualized Environments such as VMware and Hyper-V;
+ Have excellent knowledge of Windows Server Environments, from Server 2003 - 2019, including OS build, AD, DNS, DHCP and GPO from design to implementation and support;
+ Have good general knowledge of TCP/IP and networking technologies including load balancing and firewalls;
+ Have good general knowledge of Microsoft stack technologies such as SharePoint, Skype for Business / Teams, MS SQL, MS System Centre (SCSM, SCOM, SCORCH), Office365, MS Exchange & CLI tooling such as PowerShell;
+ Have good general knowledge of SAN storage technologies;
+ Have excellent analysis and problem-solving skills, taking ownership of complex incidents ensuring these are resolved to the satisfaction of the customer;
+ Possess excellent communication skills;
+ Have experience of producing and updating technical documentation to a high standard.
Clearance requirements: DV
**What we do for you:**
At Leidos we are PASSIONATE about customer success, UNITED as a team and INSPIRED to make a difference. We offer meaningful and engaging careers, a collaborative culture, and support for your career goals, all while nurturing a healthy work-life balance.
We provide an employment package that attracts, develops and retains only the best in talent. Our reward scheme includes:
- Contributory Pension Scheme
- Private Medical Insurance
- 33 days Annual Leave (including public and privilege holidays)
- Access to Flexible benefits (including life assurance, health schemes, gym memberships, annual buy and sell holidays and a cycle to work scheme)
- Dynamic Working
**Commitment to Diversity:**
We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging, welcoming all perspectives and contributions, and providing equal access to opportunities and resources for everyone. If you have a disability or need any reasonable adjustments during the application and selection stages please let us know, and we will respond in a way that best fits your needs.
**Who We Are:**
**Leidos UK & EUROPE** - we work to make the worldsafer,healthier, andmore efficient through technology, engineering andscience.
is a growing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transformation in frontline services, our work in the United Kingdom includes addressing some of the most complex problems in defence, healthcare, government, safety and security, and transportation.
**What Makes Us Different:**
**Purpose:** you can use your passion and abilities at Leidos to keep the people you care about safe. We are at the forefront of machine learning, AI, cyber security and solutions. Using your skills in the technology frontline by helping to build a safer world. You can **_inspire_** change.
**Collaboration:** having **_flexibility_** to do your job is one of our core benefits, enabling you to become part of our extraordinary team. We have been empowering our people to work flexibly for years. Whether you work from home, the office or on customer sites, we will give you the digital tools and the flexibility to work smarter and align your needs and ours.
**People:** Leidos **_empowers_** people from every background to be themselves and gives you the tools to learn new skills by **_enabling growth_** **_whilst developing_** . We believe that extraordinary people need opportunities to grow, to **_be inspired_** and to inspire others. At Leidos, we invest in technical academies, career rotations and a career development plans that enhance your future.
**Original Posting:**
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
**Pay Range:**
The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
REQNUMBER: R-00155332
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.
3rd Line Infrastructure Engineer
Posted 1 day ago
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Job Description
3rd Line Infrastructure Engineer
Camberley
Onsite
£37k to £40k + Company Car or Car Allowance
DXP Talent is hiring for a 3rd Line Infrastructure Engineer to join an International Engineering Business in Camberley.
This is an exciting role that offers a lot of autonomy and the chance to shape the future direction of IT across the business whilst also having scope to develop into a Leadership position.
Da.
WHJS1_UKTJ
3rd Line Infrastructure Engineer
Posted 18 days ago
Job Viewed
Job Description
Senior 3rd Line Infrastructure Engineer
Location: Huntingdon, Cambridgeshire UK (F/T on-site)
Security Clearance Level: High DV Developed Vetting
UNLEASH YOUR POTENTIAL
We are looking for an experienced Senior Infrastructure Engineer to join our 3rd Line Service Operations team who is able to work collaboratively with colleagues and our customer in an exciting and critical LAN/WAN environment. A key .
DJSC 3rd Line Infrastructure Engineer
Posted today
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Job Description
This position is within a shared service which supports a wide array of customers with distinct needs. Flexibility to apply your skills across various accounts will be essential to support the team's overarching objective of delivering exceptional customer service and ensuring robust estate maintenance.
**Key Responsibilities:**
+ Manage and maintain the virtualisation environment (VMWare)
+ Windows Server administration 2016-2022
+ Advanced troubleshooting and problem resolution for complex infrastructure issues
+ Apply best practice principles to optimise service delivery and operations
+ BAU Support activities
+ Server infrastructure monitoring and lifecycle management
**Your experience:**
+ Experience working in a 3rd Line support role
+ Experience supporting MS Office applications
+ Active Directory & Group Policy
+ VMWare vSphere Infrastructure, VMWare Horizon
+ Microsoft System Centre (SCOM, SCCM, SCSM)
+ Trellix and/or TrendMicro Security Products
+ Veeam backup and recovery
+ PowerShell scripting for automation and data mining
+ Developing and maintaining documentation
+ Mentoring and coaching junior technical engineers
**Desirable:**
+ Microsoft Windows 10/11
+ SharePoint 2016 Administration and maintenance
+ Microsoft Exchange
+ Basic Linux administration
+ ITIL methodologies
**Please note:** It's still worth applying even if you do not meet all the requirements above. We are passionate about investing in you and your career and if you have the transferable skills/ background in a lower-level infrastructure support role, this could be the next opportunity for you.
**Expected working**
Our hours of support are Monday to Friday 08:00 - 18:00 to fulfil 37 hours per week. This could be on an early or late start, rotated as directed by service delivery/team lead.
**Your benefits:**
26 Days annual leave plus public holidays (3 flexible)
Pension - Double matching contributions of up to 10%
Life assurance
Companywide incentive plans
Your choices (Flexible benefits such as increased holidays / travel / dental critical illness and more)
Perks at work - employee discounts
Employee assistance programme / virtual GP
Role dependent benefits: Private medical
Work Your Way is our approach to flexible working - this is available from day 1 of joining.
**Recruitment process**
The recruitment process consists of a one stage interview.
We are a Disability Confident Employer and will offer an interview to disabled applicants who best meet the minimum/essential criteria for the role. Email if you would like to apply through the Disability Confident Interview Scheme.
**Achieve together**
**We are recognised as a responsible and inclusive employer:** Not only are we a certified Disability Confident Leader, a Times Top 50 employer for Gender Equality, a Top 75 employer for Social Mobility, accredited with the Living Wage Foundation and a signatory for the Race at Work Charter, but we are also committed to the United Nations standards for LGBTI+ and a Stonewall Top 100 Employer.
**We are people centric:** Our hybrid work environments enable you to **Be Completely You.** Our active people-led Inclusive Community networks are representative of all aspects of diversity and are instrumental in enabling and supporting our innovative approach to inclusion
**#LifeAtFujitsu**
**#Defence**
**Requisition ID** : 30626
3rd Line Infrastructure Engineer - Permanent - Watford
Posted 1 day ago
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Job Description
Do you want something just to do, or do you want something to be?
? 3rd Line IT Infrastructure Support Engineer
Location: Watford, Hertfordshire
Salary: £38,500 - £41,500 per annum
Contract: Full-Time, Permanent (37 hours/week)
Benefits: Extensive Benefits Package + Personal Development + Training Opportunities
Requirements: Enhanced DBS Check | Full UK Driving License
? Join a Mission-Driven Organ.
IT Infrastructure Engineer (3rd Line)
Posted 18 days ago
Job Viewed
Job Description
- Location: Guildford, Surrey. 3 days a week working onsite
- Job Type: Permanent, Full-time
- Salary: Competitive
A new exciting opportunity has become available for an IT Infrastructure Engineer, operating at 3rd line to join a leading IT Infrastructure team at a leading satellite supplier. This role offers an exciting opportunity to shape system architecture and provide technical expertise in the implementation, maintenance, and administration of both corporate and satellite ground station infrastructure. You will have a direct impact engaging in innovative on-prem and cloud projects.
Alongside new and exciting on-prem and cloud projects the infrastructure engineers have direct involvement influencing how satellite mission infrastructure is architected, implemented, and deployed.
Day-to-day of the role:
- Systems Architecture & Security: Develop and review architecture, assess new technologies, and recommend enhancements to ensure robust security and efficiency.
- Infrastructure Implementation: Execute new infrastructure services, manage project schedules, and oversee change management processes.
- System Modernisation & Automation: Focus on modernising existing systems and implementing automation to enhance operational efficiency.
- Scripting & Templates: Create scripts and templates for repeatable machine builds to streamline deployments.
- Infrastructure Maintenance: Conduct routine maintenance, including firmware updates, system upgrades, and virtual infrastructure management, aiming to automate processes where feasible.
- 3rd Line Support: Provide advanced support within the Service Desk, efficiently resolving escalated incidents in line with Helpdesk SLAs.
- Business As Usual Tasks: Perform essential operational tasks as needed to maintain continuous service delivery.
- Technical Expertise: Offer expert guidance on IT-related matters, assisting the Infrastructure Manager when required.
Required Skills & Qualifications:
- Degree in Computing or equivalent.
- Minimum 3 years in an infrastructure support environment involving administration of Microsoft and Linux server systems, network hardware, SAN/NAS storage, firewalls, and Cloud (Azure/AWS).
- Experience with Microsoft Azure and Office 365 administration.
- Comfortable with scripting/automation (Python/PowerShell/Bash or similar).
- Good understanding of TCP/IP networking and management.
- Knowledge of Storage technologies - NAS, SAN & iSCSI - Nimble, NetApp.
- Knowledge of VMware vCenter.
- Experience with infrastructure monitoring tools such as Splunk.
- Excellent inter-personal skills - both written and oral communications; ability to interface with customers and technical representatives.
Desirable Skills:
- AWS Administration & Best Practices (EC2, S3, Lambda etc).
- LAMP Stack Administration.
- Red Hat Satellite and Ansible knowledge.
- Docker or Podman experience.
- Certifications like MCSE, CCNA, VCP are an advantage but not necessary.
Benefits:
- 32 days Holiday plus Bank Holidays.
- Pension Scheme with Life Assurance.
- Private Medical & International Travel Insurance.
- Annual Bonus Scheme.
- Share Incentive Plan.
- Enhanced Maternity, Paternity & Shared Parental Pay for new parents.
- High Street Discount Scheme and many more!
To apply for this IT Infrastructure Engineer position, please submit your CV to be considered immediately.
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Network Systems Engineer
Posted 6 days ago
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Job Description
Network Systems Engineer
Tamworth
40,000 to 50,000 + Benefits
Excellent opportunity for an experienced 3rd Line Engineer to join a growing infrastructure team in a project-led role with autonomy, technical variety, and long-term progression.
This company is a well-established manufacturer with a large IT estate, investing heavily in modernising their infrastructure across multiple UK sites. You'll be joining a collaborative team that values security, reliability, and continuous improvement.
In this varied role, you'll lead infrastructure projects, provide 3rd line support, and take ownership of core systems including Windows Server, Azure, virtualisation, networking, and security. You'll work closely with the Infrastructure Manager and wider team to deliver upgrades, improvements, and support across the estate.
The ideal candidate will have strong experience in 3rd line positions, with good Microsoft infrastructure knowledge, solid networking skills, and a security-conscious mindset. Experience with information security best practices and secure system design is essential.
This is a fantastic opportunity to join a stable, growing organisation where you'll play a key part in shaping the future of their infrastructure and security landscape.
The Role:
*Deliver and lead IT infrastructure projects across a multi-site environment
*Provide 3rd line support across Windows Server, O365, Azure, and virtualisation
*Manage networks, firewalls, backups, and enterprise storage
*Ensure secure, reliable systems and liaise with 3rd parties as needed
*Site based in Tamworth
The Person:
*Strong 3rd line / infrastructure engineering experience
*Strong experience with Microsoft stack - Windows Server, AD, O365, Azure
*Confident with networking, SonicWall, and virtualisation (Hyper-V or VMware)
*Security-conscious, with hands-on experience in information security practices
Network Engineer
Posted today
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Job Description
Network Engineer (Eligible for SC Clearance)
Competitive Salary + Annual Bonus + Car Allowance + Private Healthcare + Pension + Progression + Gym Membership + Full Training
London
We are seeking a skilled and motivated Network Engineer to play a key role in supporting and evolving our internal and customer-facing network infrastructure. This is an opportunity to contribute to a dynamic engineering environment where reliability, security, and performance are essential.
With a strong track record in delivering secure communications, the organisation supports a wide range of customers across sectors such as government, defence, maritime, and enterprise. The networks underpinning these services are critical to daily operations, and this role plays a key part in maintaining their stability, performance, and security.
As a Network Engineer, you'll be responsible for the full lifecycle of network delivery - from initial configuration and deployment to ongoing optimisation and support. Working alongside internal specialists and technical teams, you'll troubleshoot complex issues, apply best practices in secure network design, and help ensure high levels of system availability and performance.
We value engineers who are hands-on, detail-oriented, and comfortable working with a range of technologies and protocols across both Cisco and Fortinet platforms.
The role:
- Network Engineer
- Design, support, and manage internal and customer networks (Cisco/Fortinet)
- Configure routing protocols (BGP, OSPF), VPNs, QoS, IP SLA, and firewalls
- Support satellite, maritime, and secure government systems in high-availability settings
- Maintain network documentation, assist with commissioning new networks
- Work closely with IT, Engineering, and customer teams to maintain secure, resilient infrastructure
The person:
- Experience supporting and maintaining secure networks
- Hands-on knowledge of Fortinet (FortiGate, FortiManager, FortiAnalyzer) and Cisco (routers, switches, IOS-XE)
- Comfortable with VPNs, IPSEC, BGP, OSPF, VOIP QoS, and Linux systems
- Eligible for SC Clearance
Reference Number: BBBH - (phone number removed)
To apply for this role or to be considered for further roles, please click "Apply Now" or contact Rise Technical Recruitment.
Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles.
The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set. We are an equal opportunities employer and welcome applications from all suitable candidates.
Network Engineer
Posted today
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Job Description
Location: Yeovilton, UK
Security Clearance: NATO Secret
Language: Fluent English required
Our client, an IT consulting and Services company are hiring for a Network Engineer to work on a project basis with one a key multination public organisation.
Key Responsibilities:
- Provide 1st to 3rd line IT support across assigned network systems.
- Design, install, configure, and maintain network infrastructure.
- Manage and upgrade equipment such as firewalls, enterprise Wi-Fi, and switches.
- Use tools like PatchManager and Cablesolve for accurate configuration management.
- Ensure compliance with NATO security policies and procedures.
- Support structured cabling (CAT5, fibre) and manage power distribution in server racks.
- Assist in rolling out and supporting enterprise Wi-Fi systems.
- Experience working as a Network Engineer.
- CISCO CCNP or JNCIP certification.
- COMPTIA Security+ (or equivalent).
- Experience with:
- Microsoft Excel (intermediate level)
- Windows 10/11 system administration
- Network monitoring tools (e.g., WhatsUpGold)
- Configuring iSCSI storage
- CISCO Wi-Fi systems
- Structured cabling (CAT5, fibre)
- PatchManager or similar infrastructure management tools
- Power distribution and racking within server environments
- Firewall installation and configuration
- Strong troubleshooting across all IT support levels.
- Experience in NATO, military, or defence environments.
- Familiarity with enterprise IT environments and compliance tools.