At a Glance
- Tasks: Design and deploy large-scale GPU clusters for cutting-edge AI infrastructure.
- Company: Fast-growing tech company focused on renewable energy and innovative cloud solutions.
- Benefits: Competitive salary, flexible working, 25 days holiday, and private medical insurance.
- Other info: Join a collaborative culture with clear career progression and meaningful work.
- Why this job: Make a real impact in AI infrastructure and enjoy ownership of your projects.
- Qualifications: Experience with large-scale GPU clusters and strong problem-solving skills.
The predicted salary is between 66150 - 80850 £ per year.
ABOUT NEXGEN CLOUD
NexGen Cloud is a fast-growing GPU cloud and AI infrastructure business. We’re the company behind Hyperstack — a self-serve, on-demand cloud platform built for high-performance AI, HPC, and compute-heavy workloads. Powered by 100% renewable energy and NVIDIA architecture, Hyperstack gives teams from AI startups to enterprise the compute they need, without the cost or complexity of legacy cloud. We move fast, solve hard problems, and build things that matter. If you want ownership, real impact, and a front-row seat to one of the most consequential infrastructure shifts of the decade — this is the place.
THE ROLE: Technical Architect
We’re deploying large-scale NVIDIA GPU clusters, including GB200 and GB300 rack-scale systems, into live data centres on tight customer commit dates. On those schedules, a design error found on site costs weeks and real money. We need one architect per deployment who takes the high-level design and turns it into something that can actually be built, then stays with it until the customer signs off. This is a role for someone who would rather find the problem on paper than on the data hall floor. It suits someone who will push back on an inherited design or a customer requirement that won’t perform, and who carries authority through owning the design rather than managing people.
WHAT YOU’LL BE DOING
- Take each cluster from CTO handover to customer acceptance as its single design authority, so nothing is ordered or installed against a design you haven’t validated.
- Turn high-level designs and initial BOMs into build-ready low-level designs, hall layouts, rack elevations, P2P maps and cable schedules that site teams can build from without having to call you.
- Design the InfiniBand and Ethernet fabric, power, direct liquid cooling and containment to fit the real constraints of each data centre.
- Validate every BOM before it goes to procurement, and make part substitution calls knowing exactly what breaks when a line changes.
- Hold OEMs and integrators (NVIDIA, Dell, Lenovo, Supermicro and others) to their technical commitments, from FAT witness through to on-site issue resolution.
- Build the reference designs and building blocks that mean each new deployment starts from a known-good baseline rather than a blank page.
ABOUT YOU
We care more about how you think and work than a perfect CV. You’ll likely bring a combination of the following:
- Essential: You’ve designed and delivered large-scale GPU or HPC clusters into live data centres, and you were on site for the build.
- Deep, practical knowledge of NVIDIA platforms (GB200/GB300 rack-scale and HGX H200/B200) and what each one demands of a facility.
- Cluster-scale InfiniBand and Ethernet fabric design: topology, rail optimisation, oversubscription, and cable and optic selection.
- Physical infrastructure design across power and redundancy, direct liquid cooling and CDUs, containment and achievable cable lengths.
- You know part numbers, what’s optional and what isn’t, and you can hold an OEM to account when their commitments slip.
- Nice to Have: Factory integration and FAT experience, including holding a dispatch gate.
- Storage design for AI workloads (WEKA, VAST, DDN, Ceph or similar).
- Deployments across multiple geographies and data centre operators, including sites requiring fit-out.
- Neocloud or hyperscale experience on compressed schedules.
WHAT WE OFFER
- Competitive salary and annual discretionary bonus scheme.
- Employee wellbeing benefits.
- 25 days holiday, plus public holidays.
- Private Medical Insurance.
- Enhanced Pension Scheme.
- Flexible working arrangements (remote or hybrid, depending on role and location).
- Real ownership and autonomy — the trust to take initiative and experiment.
- Visible, meaningful impact as we scale.
- Clear career progression in a high-growth company.
- A collaborative, international culture built on trust, transparency, and ownership.
- The chance to help shape NexGen Cloud’s team, culture, and future.
WHY APPLY
We welcome applications from all backgrounds. If you enjoy solving complex infrastructure problems and want to build something meaningful at scale, we’d like to hear from you.
MORE INFORMATION
Visit our careers page to learn more about us or follow us on LinkedIn and X to learn more about our journey and keep up with our latest news and releases.
Technical Architect - AI Infrastructure Deployment in London employer: NexGen Cloud Ltd
NexGen Cloud is an exceptional employer, offering a dynamic work environment in London where innovation meets collaboration. With a strong focus on employee growth, competitive salaries, and flexible working arrangements, we empower our team to take ownership and make impactful contributions in the rapidly evolving AI cloud infrastructure space. Join us to be part of a tight-knit team that values creativity and provides the tools necessary for success in a cutting-edge industry.
StudySmarter Expert Advice🤫
We think this is how you could land Technical Architect - AI Infrastructure Deployment in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at NexGen Cloud Ltd or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
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We think you need these skills to ace Technical Architect - AI Infrastructure Deployment in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at NexGen Cloud Ltd.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at NexGen Cloud Ltd and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at NexGen Cloud Ltd
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If NexGen Cloud Ltd uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
