Principal Storage Architect for AI Cloud Platform

Radiant; United Kingdom; On-site; GBP 120,000 - 180,000; Full time

Benefits offered by this job

25 days annual leave

Private medical insurance (Bupa)

Cycle to Work Scheme

Gympass access

Job summary

Radiant is seeking a Principal Software Engineer - Storage to set the technical direction for its cloud storage offering and lead design and delivery of storage services for demanding cloud and AI workloads at scale.

You will work across object, block, and file storage, data lifecycle, performance, resilience, APIs, and platform integrations, partnering with product, infrastructure, SRE, networking, and security teams.

Qualifications

• Extensive experience building and operating large-scale distributed storage systems or storage-heavy cloud infrastructure.
• A track record of technical leadership at staff or principal level, including setting direction across multiple teams and delivering complex, high-stakes systems.
• Strong hands-on engineering skills in one or more systems languages such as Go or similar.

Responsibilities

• Set the technical vision and architecture for Radiant's storage services, and lead their design and implementation.
• Design and build storage systems across object, block, and file, including the control plane, the data plane, and integration with existing Radiant services.
• Translate product and customer requirements into robust architectures, APIs, and technical designs, working closely with the Storage Product Manager.
• Own the performance, durability, availability, and consistency characteristics of the storage platform, and define the service levels it can credibly meet.
• Profile, benchmark, and tune throughput, latency, and IOPS for AI training, inference, and other data-intensive workloads.
• Lead integration of storage with compute, Kubernetes (CSI), networking, IAM, observability, and developer tooling.
• Design for failure through replication, snapshots, data protection, failure recovery, and safe upgrades at scale.
• Drive operational excellence with SRE, including capacity planning, observability, incident response, and post-incident improvements.
• Raise the engineering bar across the organisation through mentoring, design and code review, and technical standards.

Skills

Distributed storage

Technical leadership

Go or similar

Storage performance tuning

Customer collaboration

Tools

WEKA

VAST

DDN

Lustre

Ceph

MinIO

Pure Storage

Job description

Radiant is seeking a Principal Software Engineer - Storage to set the technical direction for its cloud storage offering and lead design and delivery of storage services for demanding cloud and AI workloads at scale.

You will work across object, block, and file storage, data lifecycle, performance, resilience, APIs, and platform integrations, partnering with product, infrastructure, SRE, networking, and security teams.