At a Glance
- Tasks: Design and build innovative multi-cloud orchestration systems for intelligent compute.
- Company: Join Callosum, a pioneering Intelligent Systems company revolutionising AI infrastructure.
- Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
- Other info: Dynamic team environment focused on solving the impossible with cutting-edge technology.
- Why this job: Tackle complex challenges and shape the future of heterogeneous intelligence in AI.
- Qualifications: Strong Kubernetes experience and knowledge of multi-cloud infrastructure required.
The predicted salary is between 60000 - 80000 € per year.
About Us
Artificial intelligence scaled on a bet - that bigger models, more identical chips, and more data would keep delivering. As problems grow more complex and the requirements of intelligence more diverse, that bet is breaking down. The next era belongs to heterogeneous intelligence: diverse models on diverse chips, each with distinct strengths, co-evolving into systems of capability unreachable by any single model or accelerator.
Callosum is the Intelligent Systems company. We built the infrastructure to make that possible. Our co-evolution engine optimises simultaneously across workflows, agents, and silicon. We launched in early 2026 showing orders of magnitude improvements in performance and a shift in the cost-performance frontier that no single chip or model provider can provide. We believe intelligence comes from the system, not the model. We are scientists and engineers solving what others consider impossible. If you thrive on hard problems, and are passionate and energised by the scale of the challenge, we'd love to hear from you.
About the Role
Callosum believes that orders of magnitude improvements in AI systems will come through application-aware orchestration across heterogeneous hardware. We are building that vision: infrastructure that treats the full landscape of compute as a unified, co-evolving system, evolved beyond GPUs. Current orchestration stacks were built for the homogeneous world - naive to the strengths of new chips and blind to the demands of modern multi-agent workflows.
This role defines how Callosum addresses this problem at the cloud and cluster level, transforming a fragmented compute ecosystem into a unified, exploitable resource pool. We are building the novel paradigm of orchestration that understands accelerator-specific constraints and capabilities. Your work is what makes heterogeneous compute intelligent at scale: every chip placed precisely and allocated efficiently in a stack that is resource-aware and diversity-native.
What You’ll Build
- Design and build multi-cloud orchestration systems that abstract provider-specific differences behind a unified deployment and scheduling layer
- Extend Kubernetes - particularly Dynamic Resource Allocation (DRA) — to be aware of heterogeneous accelerator topologies and capabilities, and multi-agent AI workflows
- Implement intelligent load balancing and placement strategies across cloud providers, regions, and hardware types
- Build control plane systems that enable efficient allocation and management of heterogeneous accelerator capacity while preserving the ability to exploit hardware-specific strengths
- Collaborate with an Accelerator Systems Software engineer to surface low-level scheduling primitives into the orchestration layer
What You Bring
- Strong experience with Kubernetes internals - custom controllers, schedulers, device plugins, CRDs, and the DRA framework
- You've built or operated multi-cloud infrastructure and have a detailed understanding of the networking, storage, and compute differences between major providers
- Familiarity with GPU/accelerator resource management in cluster environments (e.g. MIG, time-slicing, device plugins, topology-aware scheduling)
- Experience with infrastructure-as-code, fleet management, and the reliability engineering required to keep large-scale heterogeneous systems running
Cloud Systems & Resource Orchestration - Member of Technical Staff in London employer: Callosum
At Callosum, we pride ourselves on being at the forefront of intelligent systems, fostering a culture of innovation and collaboration. Our team thrives in a dynamic environment where tackling complex challenges is not just encouraged but celebrated, offering ample opportunities for professional growth and development. Located in a vibrant tech hub, we provide our employees with access to cutting-edge resources and a supportive community that values diverse perspectives and ideas.
StudySmarter Expert Advice🤫
We think this is how you could land Cloud Systems & Resource Orchestration - Member of Technical Staff in London
✨Tip Number 1
Network like a pro! Attend industry meetups, webinars, or tech conferences where you can connect with folks in the cloud systems space. Don’t be shy—introduce yourself and chat about your passion for orchestration and AI. You never know who might have a lead on your dream job!
✨Tip Number 2
Show off your skills! Create a GitHub repository showcasing your projects related to Kubernetes or multi-cloud orchestration. This is a great way to demonstrate your expertise and passion for the field. Plus, it gives potential employers a tangible look at what you can do!
✨Tip Number 3
Tailor your approach! When reaching out to companies like Callosum, make sure to highlight your experience with heterogeneous systems and resource management. Personalise your message to show that you understand their mission and how you can contribute to their vision.
✨Tip Number 4
Don’t forget to apply through our website! We love seeing candidates who are genuinely interested in joining our team. Make sure to follow up after applying—send a friendly email expressing your enthusiasm for the role and how you can help tackle those hard problems we’re passionate about.
We think you need these skills to ace Cloud Systems & Resource Orchestration - Member of Technical Staff in London
Some tips for your application 🫡
Show Your Passion:When you're writing your application, let your enthusiasm for tackling complex problems shine through. We want to see that you're not just looking for a job, but that you're genuinely excited about the challenges we face at Callosum.
Tailor Your Experience:Make sure to highlight your relevant experience with Kubernetes and multi-cloud infrastructure. We love seeing how your background aligns with our needs, so don’t be shy about showcasing your skills in resource management and orchestration.
Be Clear and Concise:Keep your application straightforward and to the point. We appreciate clarity, so avoid jargon unless it’s necessary. Make it easy for us to see why you’re a great fit for the role without wading through unnecessary fluff.
Apply Through Our Website:We encourage you to submit your application directly through our website. It’s the best way for us to receive your details and ensures you’re considered for the role. Plus, it’s super easy!
How to prepare for a job interview at Callosum
✨Know Your Kubernetes Inside Out
Make sure you brush up on your knowledge of Kubernetes internals, especially custom controllers and the Dynamic Resource Allocation (DRA) framework. Be ready to discuss how you've implemented these in past projects, as this will show your hands-on experience and understanding of the technology.
✨Showcase Your Multi-Cloud Experience
Prepare to talk about your experience with multi-cloud infrastructure. Highlight specific challenges you've faced and how you navigated the differences between major cloud providers. This will demonstrate your ability to manage diverse environments effectively.
✨Understand Heterogeneous Systems
Familiarise yourself with GPU and accelerator resource management. Be prepared to discuss strategies for load balancing and placement across different hardware types. This knowledge is crucial for the role and will set you apart from other candidates.
✨Collaborate and Communicate
Since collaboration is key in this role, think of examples where you've worked closely with engineers or cross-functional teams. Be ready to share how you communicated complex ideas clearly and effectively, as this will highlight your teamwork skills.
