9 it infrastructure engineer jobs found in London

This role is delivered within secure environments. Candidates must be eligible for UK SC and DV clearance and hold UK Citizenship. Opening: Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving the most complex data assurance challenges in the UK public sector. Currently, we are working on a landmark transformation of a cross-government secure IT system. This is an exciting opportunity to help architect a private cloud environment from the ground up and modernize the end-user services that power national decision-making. We don't believe in ʺbilling by the hourʺ or rigid hierarchies; we are a lean, expert team focused on delivering high-impact technical outcomes. If you are a self-starter who thrives on autonomy and wants to see your engineering or architectural decisions shape the future of sovereign security, we want to talk to...

Join a forward-thinking organisation where your Microsoft security expertise will drive meaningful improvements in cyber security capability and maturity. Salary: £500 - 550 per day Security Engineer Security Engineer with strong expertise across the Microsoft security stack, including proven experience implementing Purview, who enjoys working in lean, evolving cyber security functions and can drive meaningful improvements in security capability and maturity. Day Rate: £500-£550pd IR35 Status: Outside Travel: 3 days a week in Central London Office Duration: 6 months initial Responsibilities: Lead the design, implementation, and optimisation of the Microsoft security ecosystem, including Defender, Entra ID, Sentinel, Intune, and Purview Deliver end to end Purview implementations, including Information Protection, Data Loss Prevention, Data Lifecycle Management, Insider Risk Management, and compliance solutions across Microsoft 365 Work closely with IT,...

Security Engineer Security Engineer with strong expertise across the Microsoft security stack, including proven experience implementing Purview, who enjoys working in lean, evolving cyber security functions and can drive meaningful improvements in security capability and maturity. Day Rate: £500-£550pd IR35 Status: Outside Travel: 3 days a week in Central London Office Duration: 6 months initial Responsibilities: Lead the design, implementation, and optimisation of the Microsoft security ecosystem, including Defender, Entra ID, Sentinel, Intune, and Purview. Deliver end to end Purview implementations, including Information Protection, Data Loss Prevention, Data Lifecycle Management, Insider Risk Management, and compliance solutions across Microsoft 365. Work closely with IT, infrastructure, and business stakeholders to deploy security controls, respond to emerging threats, and ensure compliance with organisational and regulatory requirements. Bring proven...

2nd Line IT Support Engineer - Contract Outside IR35 ~ 6 month contract - likely extension/potential for temp-perm Day Rate: DOE Hybrid: 3-4 days a week onsite in White City/Shepherd's Bush 1 Stage Interview Process - Immediate start Our client, a well-established and growing retail organisation, is looking for an experienced 2nd Line Engineer to join their IT team on a long term contract, providing expert support and helping maintain the stability, security, and performance of their systems. Reporting to the Senior IT Manager, you'll be a key escalation point for 1st line support, get involved in infrastructure projects, and mentor junior team members. What you'll be doing: Resolving complex issues escalated from 1st line within SLA, with clear user communication throughout Diagnosing software, hardware, and network issues, focused on root cause Escalating to 3rd line/vendors where needed, with proper handover Supporting server, network, and...

3rd Line Engineer 📍 White City, London (4 Days Onsite) 💰 £350-450 per day 📄 Outside IR35 📅 Initial 6-Month Contract I'm currently supporting a well-known retail brand that is investing heavily in its internal IT function and looking to hire an experienced 3rd Line Engineer to join the team on an initial 6-month contract. This is a hands-on role where you'll play a key part in improving and stabilising a large Microsoft-based environment, working across infrastructure, cloud, networking and security technologies. What You'll Be Doing • Providing 3rd line support for complex technical issues • Managing Microsoft 365 and Windows environments • Supporting Azure infrastructure and cloud services • Leading patching, vulnerability management and security improvements • Managing backup and disaster recovery processes • Working with networking, firewalls and email security platforms • Supporting infrastructure upgrades, migrations and improvement projects •...

2nd Line IT Support Engineer - Contract Outside IR35 ~ 6 month contract - likely extension or temp/perm opportunity  Day Rate: DOE Hybrid: 3-4 days a week onsite in White City/Shepherd's Bush 1 Stage Interview Process - Immediate start Our client, a well-established and growing retail organisation, is looking for an experienced 2nd Line Engineer to join their IT team on a long term contract, providing expert support and helping maintain the stability, security, and performance of their systems. Reporting to the Senior IT Manager, you'll be a key escalation point for 1st line support, get involved in infrastructure projects, and mentor junior team members. What you'll be doing: Resolving complex issues escalated from 1st line within SLA, with clear user communication throughout Diagnosing software, hardware, and network issues, focused on root cause Escalating to 3rd line/vendors where needed, with proper handover Supporting server, network, and...

3rd Line Engineer ?? White City, London (4 Days Onsite) ?? £350-450 per day ?? Outside IR35 ?? Initial 6-Month Contract I'm currently supporting a well-known retail brand that is investing heavily in its internal IT function and looking to hire an experienced 3rd Line Engineer to join the team on an initial 6-month contract. This is a hands-on role where you'll play a key part in improving and stabilising a large Microsoft-based environment, working across infrastructure, cloud, networking and security technologies. What You'll Be Doing • Providing 3rd line support for complex technical issues • Managing Microsoft 365 and Windows environments • Supporting Azure infrastructure and cloud services • Leading patching, vulnerability management and security improvements • Managing backup and disaster recovery processes • Working with networking, firewalls and email security platforms • Supporting infrastructure upgrades, migrations and improvement projects •...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

IT Systems Engineer (Level 2) 6 Months £300 Outside IR35 Hybrid About the Role As IT Systems Engineer (Level 2), you will be the senior technical resource within the IT team, acting as the primary escalation point for complex issues whilst taking ownership of the Microsoft 365, Azure and security platforms that underpin the business. This is a hands-on engineering role combining support, infrastructure administration, security, automation and platform governance. You'll work closely with the Level 1 Analyst, lead technical improvements, and play a key role in maturing BGS's independent IT environment. We're looking for someone who enjoys solving problems, improving systems, automating repetitive tasks, and taking ownership of technology rather than simply maintaining it. Key Responsibilities IT Operations & Support Act as the senior escalation point for complex technical issues across the Microsoft estate. Handle support tickets alongside...