Junior Infrastructure Engineer

UK

Launch Your Career as a Graduate Infrastructure Engineer? 

Ready to kick start your career with top tier training, real support, and access to leading global employers? With mthree’s Alumni Graduate Program, you get everything you need to build an exciting career in tech.

No training bond. No exit fees. No hidden catches.

At mthree, we connect talented graduates with leading global businesses. Our clients include top investment banks and world renowned financial services firms working across investment banking, securities, investment management, and wealth management. We are also expanding into the public sector, luxury fashion, and business services.

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Role Overview

As a Network Engineer, you'll help build, support, and automate enterprise network infrastructure using modern networking technologies, Python, and Infrastructure as Code (IaC). You'll work alongside cloud, security, and engineering teams to deliver reliable, secure, and scalable network services while gaining hands-on experience in a large-scale enterprise environment.

Please note: Flexibility to relocate may be required

 

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What You’ll Do

• Build, support, and automate enterprise network infrastructure using modern networking principles and Infrastructure as Code (IaC).
• Develop Python scripts and AI-assisted automation to reduce manual tasks, improve reliability, and streamline operations.
• Monitor, troubleshoot, and optimise large-scale network environments using enterprise monitoring and observability tools.
• Collaborate with cloud, security, and engineering teams to deliver resilient, secure, and highly available network services.
• Gain hands-on experience with Cisco technologies, network automation, AI-powered tools, and software-defined networking within a global banking environment.

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How the Alumni Program Works

1. Apply online via this job advert.
2. Complete our assessment process via Hackerearth assessment and our academy 
3. Join the mthree Academy for 6 week intensive online/remote training with other graduates, focusing on areas like Linux, SQL, databases, Python, DevOps and much more 
4. Start a 12–24 month placement with one of our global clients, supported by frequent salary increases. 
5. Most Alumni convert to permanent employees with the client after the program.

 

What You Need to Succeed

• Degree: Bachelor’s in Computer Science, Cyber Security  or a related STEM field (minimum 2:1).
• Passion: Strong interest in Financial Markets and technology.
• Technical Skills:
  • Experience with Object-Oriented Programming (e.g., Java, Python, C++, C).
  • Exposure to Network administration and security
  • Solid SQL database knowledge (e.g., Sybase, DB2, Oracle) for writing queries and analyzing logs.
  • Experience troubleshooting and debugging applications.
  • Understanding of the Software Development Lifecycle (SDLC).
• Eligibility: Authorization to work in the UK (visa sponsorship not available).

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What You’ll Get

• Instructor led training in small, interactive classes.
• Competitive graduate salary with pay increases every 6-12 months.
• Ongoing support and mentorship throughout your placement.
• Hands-on experience with top global firms that gives you a strong career edge.

 

This role is open to multiple locations across the UK including; London, Bromley, Bournemouth, Glasgow, Crawley, Chester and more. 

Being flexible on locations will increase the number of opportunities presented to you. 

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Diversity and Inclusion at mthree

At mthree, we embrace diversity and create an environment where everyone can thrive. We prioritize inclusion, equality, and well-being, teamwork, continuous learning, and meaningful impact.

You must have the right to work in the UK by the start of your employment and for the full duration of the training and placement period, which is 26 months.