Software engineer relocation Work, Jobs in London (with Salaries)

Accelerator Systems Software - Member of Technical Staff
Callosum —London
- £101,000 - £192,000 a year
- Full-time
Quick apply
Software Engineer, Frontend (TypeScript
Motorola Solutions —Uxbridge
- Full-time
- APIs
- No travel
- HTML
- Employee stock purchase plan
- Employee assistance programme
11d
Senior Research Software Engineer (ATLAS)
University College London —London
- £54,931 - £64,644 a year
- Part-time
- C++
- University
- No degree
- Relocation assistance
- Annual leave
13d
Staff Software Engineer
bp —London
- Full-time
- Hybrid work
- Azure
- Computer Science
- DevOps
- Relocation assistance
2d
Research Scientist/Engineer (Agentic Systems)
White Circle —London
- £150,000 - £250,000 a year
- Full-time
- Hybrid work
- Doctoral degree
- Computer Science
- English
- Relocation assistance
- Annual leave
Software Technical Writer
SonarSource —London
- Full-time
- DevOps
- Software development
- AI
Senior Software Engineer - Finance Experience
Perk —London
- Full-time
- English
- Accounting
- APIs
- Relocation assistance
Senior Mobile Engineer, iOS or Android (Relocation to Melbourne)
Airwallex —London
- Full-time
- Computer Science
- Engineering
- Bachelor's degree
Inference Engine Development - Member of Technical Staff
Callosum —London
- £101,000 - £192,000 a year
- Full-time
- C++
- APIs
- Python
Quick apply
Senior Software Engineer - Cards Experience EU
Perk —London
- Full-time
- English
- APIs
- AI
- Relocation assistance
Lead/Senior Software Engineer
Rover.com —London
- £62,722 - £76,027 a year
- Full-time
- Hybrid work
- English
- Mentoring
- AI
- Relocation assistance
- Annual leave
Quick apply
Automation Engineer
GE Vernova —Whetstone
- Full-time
- Computer Science
- Software troubleshooting
- Engineering
Mobile Application Engineer
Wide and Wise —London
- APIs
- AI
- Communication skills
Quick apply
AI Engineer
Arondite —London
- Full-time
- Hybrid work
- Doctoral degree
- Computer Science
- Engineering
Quick apply
10d
Full Stack Engineer
Minerva Defence —London
- Hybrid work
- DevOps
- Machine learning
- Computer networking
Quick apply
23h
Cloud Systems & Resource Orchestration - Member of Technical Staff
Callosum —London
- £101,000 - £192,000 a year
- Full-time
Quick apply
Data Scientist, Marketing Analytics
SonarSource —London
- Full-time
- SQL
- Analysis skills
- IT
Test Automation Engineer
Motorola Solutions —Uxbridge
- Full-time
- Travel
- APIs
- In-person
- Employee stock purchase plan
- Employee assistance programme
Senior Software Engineer, Business Pricing
Wise Australia Investments —London
- £87,500 - £111,000 a year
- Java
- IT
- Communication skills
Forward Deployed Engineer
Wide and Wise —London
- APIs
- AI
- Communication skills
Quick apply

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software engineer relocation jobs near london

Accelerator Systems Software - Member of Technical Staff

Callosum
London

Quick apply

Job details

Full-time
£101,000 - £192,000 a year

Benefits

UK visa sponsorship
Private medical insurance

Qualifications

Firmware
OS Kernels
SDKs
Debugging

Full job description

About Us

The last era of AI scaled on a single bet: bigger models, more identical chips, more data. As problems grow more complex and the requirements of intelligence more diverse, that bet is breaking down. Real-world problems are heterogeneous: no single model or chip can solve them alone. The next era of AI requires heterogeneity at the infrastructure level - diverse models on diverse chips, each with distinct strengths, co-evolving into systems of capability that move the Pareto frontier of what is possible. That's what we are building.

Callosum is the Intelligent Systems Company. We started from questioning what actually creates intelligence. We believe there is no single answer, but rather a system-level solution. We co-evolve models, workflows, and silicon together to show that intelligence does not come from a single component, but it emerges from the diversity of co-optimised mechanisms working together and aware of each other. Heterogeneity will define the next era of compute, and is a principle that holds in biological, neuronal, and economic systems alike.

In early 2026 we launched with results showing orders of magnitude improvements in performance, and this is only the beginning. Agentic AI is the future of how intelligence is deployed: multi-step, long-horizon, and operating in changing environments. These systems are inherently heterogeneous, and can only be as powerful as the infrastructure that runs them.

We are engineers and scientists based in London, working together across the full depth of the stack. We are curious, intellectually honest, and building what doesn't exist yet. If you thrive on uncharted territory and are 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. Callosum is purposefully placed to be the first place to access and deploy new chips, expanding beyond GPUs to enable a system that works in harmony, greater than the sum of its parts.

This role sits at the foundation of Callosum’s stack, enabling the company to run AI workloads beyond the constraints of any single hardware vendor. You will build the low-level systems software - kernels, drivers, runtime tools - that make diverse and novel accelerators viable for real-world inference, surfacing the full strength of new silicon. This infrastructure is what enables us to turn a fragmented accelerator landscape into our platform; you will own the design decisions that directly influence performance and reliability.

What You'll Build

Build and maintain kernels, device drivers, and firmware for heterogeneous accelerators
Design and implement accelerator scheduling at the execution level — kernel launches, dataflow optimisation, and resource management across diverse hardware
Optimise execution paths for latency, throughput, and resource utilisation across accelerator types
Work closely with internal teams and hardware vendors to onboard new accelerator platforms
Contribute to low-level runtime software that bridges our inference stack and the underlying hardware

What Sets You Apart

Demonstrable interest in a variety of accelerator microarchitectures
Deep experience in kernel development, device driver authoring, or firmware engineering
Familiarity with accelerator programming models (CUDA, ROCm, or vendor-specific SDKs)
Experience with compiler infrastructure such as MLIR or LLVM
Strong debugging skills in environments with limited tooling and incomplete documentation

What We Offer

Competitive Salary, determined by skills and experience
Equity & Ownership
Private healthcare
We offer Visa sponsorship and relocation benefits to hire the best in the world
We work in person at our London office. You'll have the tools, space and setup to do your best work, and if you have specific needs, just tell us

We're committed to building an inclusive workplace where everyone feels welcome, and believe in equal opportunities for all.

Compensation Range: £101K - £192K

Quick apply

Refine Your Search

software engineer relocation jobs in london

Accelerator Systems Software - Member of Technical Staff

Software Engineer, Frontend (TypeScript

Senior Research Software Engineer (ATLAS)

Staff Software Engineer

Research Scientist/Engineer (Agentic Systems)

Software Technical Writer

Senior Software Engineer - Finance Experience

Senior Mobile Engineer, iOS or Android (Relocation to Melbourne)

Inference Engine Development - Member of Technical Staff

Senior Software Engineer - Cards Experience EU

Lead/Senior Software Engineer

Automation Engineer

Mobile Application Engineer

AI Engineer

Full Stack Engineer

Cloud Systems & Resource Orchestration - Member of Technical Staff

Data Scientist, Marketing Analytics

Test Automation Engineer

Senior Software Engineer, Business Pricing

Forward Deployed Engineer

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