At a Glance
- Tasks: Engineer and support cutting-edge network infrastructure across global environments.
- Company: Join Colt Technology Services, a leader in inclusive tech solutions.
- Benefits: Enjoy flexible hours, remote work, and comprehensive health support.
- Other info: Be part of a diverse team that values your unique perspective.
- Why this job: Make a real impact on global connectivity while growing your skills.
- Qualifications: Experience with Cisco technologies and a passion for networking required.
The predicted salary is between 60000 - 75000 £ per year.
This job is with Colt Technology Services, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community.
Colt provides network, voice and data centre services to thousands of businesses around the world, allowing them to focus on delivering their business goals instead of the underlying infrastructure.
Why we need this role
We are seeking an IT Infrastructure Engineer (Network) to contribute to the engineering, implementation, support, and optimisation of enterprise network services, supporting office, data centre, and hybrid cloud networking environments. This is a hands-on engineering role focused on delivering resilient, secure-by-design, and high-performance network platforms using predominantly Cisco technologies, with exposure to Juniper and cloud-native networking. The role will be critical in ensuring network segmentation, security, and scalability across the organisation’s global infrastructure. The role requires solid technical capability, strong troubleshooting skills, and effective collaboration across teams.
What you will do
- Engineer and support network infrastructure, including:
- Office / campus networks
- Data centre networking
- Hybrid cloud connectivity (Azure, GCP)
- Implement, support and input to the design of secure, scalable network solutions across:
- LAN / WAN / Data Centre / Cloud
- Support and optimise Cisco-based network platforms, including:
- Routing and switching
- Cisco ACI (Application Centric Infrastructure)
- Policy-driven segmentation
- Support and manage F5 load balancing platforms, including:
- LTM configuration and optimisation
- Traffic management and application delivery
- High availability and failover design
- Deliver secure-by-design network architecture, including:
- Network segmentation and micro-segmentation
- Zero Trust principles
- Alignment to enterprise security controls
- Implement, support and input to the design of hybrid networking solutions, including:
- Connectivity to Azure and GCP
- VPN and private connectivity models (e.g. ExpressRoute, Interconnect)
- Troubleshoot and resolve complex network incidents and performance issues across multi-layer environments.
- Contribute to network automation and standardisation to improve operational efficiency.
- Produce and maintain high-quality network documentation, including:
- High-level and low-level designs
- Network diagrams
- Runbooks and operational procedures
- Configuration standards
- Collaborate with:
- Security teams (segmentation, network security controls)
- Cloud engineering teams
- Platform and infrastructure teams
- Participate in the on-call rota to support critical network incidents.
What we're looking for
Required skills & experience
- Good hands-on experience with:
- Cisco networking technologies (core requirement)
- Data centre networking and Cisco ACI
- F5 load balancing platforms
- Experience with:
- Juniper networking technologies (desirable)
- Hybrid cloud networking (Azure and/or GCP)
- Strong knowledge of:
- Network segmentation and secure network design
- Routing and switching protocols (e.g. BGP, OSPF)
- Layer 4–7 load balancing concepts
- High availability and resilient design
- Proven ability to implement, support and contribute to the support of enterprise-scale network environments.
- Good troubleshooting experience across:
- LAN
- WAN
- Data centre fabric
- Hybrid cloud connectivity
- Technical competencies
- Ability to implement complex technical delivery and provide strong contributions to problem resolution
- Strong understanding of:
- Secure-by-design networking
- Network segmentation strategies (macro and micro segmentation)
- High availability, resilience, and fault tolerance
- Hands-on experience implementing and operating Cisco ACI environments
- Ability to contribute to design decisions in partnership with architecture teams.
- Certifications such as:
- Cisco (CCNP / CCIE)
- F5 certifications
- Cloud networking certifications (Azure / GCP)
- Exposure to:
- Network automation tools (Ansible, Terraform, etc.)
- Container networking and modern application delivery
- Degree in Computer Science, Networking, or related field (or equivalent experience)
- 3-5 years of experience in enterprise networking
- Signed the UN Women Empowerment Principles which guide our Gender Action Plan
- Trained 60 (and growing) Colties to be Mental Health First Aiders
- Flexible working hours and the option to work from home.
- Extensive induction program with experienced mentors and buddies.
- Opportunities for further development and educational opportunities.
- Global Family Leave Policy.
- Employee Assistance Program.
- Internal inclusion & diversity employee networks.
Preferred qualifications
Education & Experience
What we offer you:
Looking to make a mark? At Colt, you’ll make a difference. Because around here, we empower people. We don’t tell you what to do. Instead, we employ people we trust, who come together across the globe to create intelligent solutions. Our global teams are full of ambitious, driven people, all working together towards one shared purpose: to put the power of the digital universe in the hands of our customers wherever, whenever and however they want. We give our people the opportunity to inspire and lead teams, and work on projects that connect people, cities, businesses, and ideas. We want you to help us change the world, for the better.
Diversity and inclusion
Inclusion and valuing diversity of thought and experience are at the heart of our culture here at Colt. From day one, you’ll be encouraged to be yourself because we believe that’s what helps our people to thrive. We welcome people with diverse backgrounds and experiences, regardless of their gender identity or expression, sexual orientation, race, religion, disability, neurodiversity, age, marital status, pregnancy status, or place of birth.
Most recently we have:
Please speak with a member of our recruitment team if you require adjustments to our recruitment process to support you. For more information about our Inclusion and Diversity agenda, visit our DEI pages.
Benefits
Our benefits support you through all parts of life, for both physical and mental health.
A global network
When you join Colt you become part of our global network. We are proud of our colleagues and the stories and experience they bring – take a look at ‘Our People’ site including our Empowered Women in Tech.
IT infrastructure engineer (network) employer: Colt Technology Services
Colt Technology Services is an exceptional employer that champions diversity and inclusion, fostering a collaborative work culture where every employee is empowered to make a meaningful impact. With flexible working arrangements, comprehensive benefits, and a strong focus on professional development, Colt provides IT Infrastructure Engineers with the opportunity to thrive in a dynamic environment while contributing to innovative network solutions on a global scale.
StudySmarter Expert Advice🤫
We think this is how you could land IT infrastructure engineer (network)
✨Join the IT Consultancy Buzz
Get involved in local or virtual IT consultancy meetups and forums. This is where we can rub shoulders with industry professionals, get insights into what Colt Technology Services values, and even spot unadvertised opportunities. Don't miss out on these chances to make a name for ourselves in the IT world!
✨Show Off Your Skills
Create a personal project or case study relevant to the challenges Colt Technology Services might face. Use platforms like GitHub or Medium to share your findings. This not only demonstrates our consulting skills but shows a proactive attitude, making us stand out from the crowd when applying for that full-time gig.
✨Leverage LinkedIn for Connections
Follow and engage with the relevant thought leaders and influencers in IT consultancy on LinkedIn. Share insightful content and join discussions to gain visibility. A well-placed comment or shared article could catch the attention of someone at Colt Technology Services!
✨Direct Apply to Colt Technology Services
Let's not forget to apply directly through the Colt Technology Services website! Tailor your application to showcase our understanding of their consulting style and how we can contribute to their projects. A personalised approach can make a huge difference in landing that full-time position!
We think you need these skills to ace IT infrastructure engineer (network)
Some tips for your application 🫡
Showcase Your Problem-Solving Skills:In IT consulting, it's all about problem-solving, so make sure your CV highlights your analytical skills and any relevant projects you've tackled. Mention specific technologies or methodologies you've used to resolve issues or improve processes; this shows you can think critically and deliver results, which is vital for us at Colt Technology Services.
Highlight Relevant Certifications:Certifications like ITIL, PMP, or even specific tech stack qualifications can really make you stand out. Make sure to include these in your CV, as they not only demonstrate your expertise but also your commitment to staying current in the field. We love seeing candidates who are proactive about their professional development!
Tailor Your Cover Letter:Your cover letter is your chance to connect personally with us at Colt Technology Services. Share stories about your experiences in IT consulting, and how they shaped your desire to join our team. Mention why you’re excited about this particular role, and how you see yourself contributing to our projects.
Keep It Clear and Concise:We're all busy, so make sure your application is easy to read. Use bullet points for key achievements, and don’t overload us with jargon. A clean, professional layout goes a long way. Remember, the clearer your application, the more likely we are to invite you in for an interview!
How to prepare for a job interview at Colt Technology Services
✨Brush Up on Your Technical Skills
For an IT consulting role, be ready to demonstrate your technical prowess. You might face questions on systems integration, cloud technologies, or even troubleshooting specific software. If you have experience with tools like AWS, Azure, or even specific programming languages, make sure you can talk about them fluently.
✨Showcase Your Problem-Solving Approach
IT consulting is all about solving problems for clients. Think about how you can illustrate your approach to a past challenge using the STAR method (Situation, Task, Action, Result). It's a great way to show how you tackle complex issues and come up with effective solutions.
✨Know the Business Impact of IT Solutions
When discussing your experiences, focus not just on the tech solutions you implemented, but also on their business impact. Employers want to see that you can connect IT with organisational goals. Prep examples that highlight how your tech contributions improved efficiency or reduced costs for past clients or projects.
✨Prepare for Behavioural Questions
Since IT consulting often involves teamwork and client interactions, expect behavioural questions that assess your interpersonal skills. Be prepared with examples that demonstrate your adaptability, communication skills, and how you handle client feedback. Before the interview, think of situations where you worked closely with clients to create effective IT strategies or changes.
