Cloud Computing Jobs

Nebius · London

Develops and extends the QEMU/KVM virtualization stack, optimising I/O for emulated disk and network devices, distributing resources between VMs and hardening the hypervisor against untrusted code. Works closely with the open-source community on upstream patches, with a focus on low-level security and performance.

Nebius · London · US$170,000 – US$300,000 pa

Owns performance tuning and troubleshooting of GPU clusters and InfiniBand fabrics, integrating new GPU hardware into Kubernetes, QEMU and KVM stacks. Builds automation for proactive fault detection and resolution across multi-GPU HPC environments, working on low-level Linux kernel, PCIe and device emulation problems.

Cloudflare · London · £185,000 – £254,000 pa

Owns the request-facing layer of Cloudflare's R2 object storage: the S3-compatible API gateway handling authentication, routing, rate limiting and error handling. Builds and operates high-throughput services on Cloudflare Workers and Kubernetes, with on-call rotation and heavy use of AI tooling in daily development.

Cloudflare · London · €54,000 – €75,000 pa

Builds core systems, protocols and customer-facing tooling for machine-to-machine payments, metering and monetization on Cloudflare's edge. Work spans low-latency transaction services, usage metering, outcome verification, digital wallets and emerging agentic payment standards like x402, ACP and UCP, bridging fiat rails with cryptographic protocols. Part of the Emerging Technologies & Incubation group, shipping new products in a fast-moving domain.

Bath and West Community Energy (BWCE) · United Kingdom · £45,000 – £70,000 pa

Build the open-source Home Energy Efficiency Advice Tool, combining energy modelling, smart-meter data and applied AI. One role leans frontend (React, TypeScript, React Native, canvas/SVG editing), the other backend (Python, FastAPI, PostgreSQL, AWS, data pipelines). Work in a two-developer team with a hands-on Technical Lead, from in-home survey capture to automated reporting.

CV-Library · Fleet

Hands-on technical leadership of an AWS-based data platform, setting strategy while designing solutions, reviewing architecture and code, and building batch and real-time pipelines. Owns data architecture, data quality and observability, drives IaC, CI/CD and automation, and mentors a team of data engineers alongside analysts and data scientists.

CV-Library · Fleet

Owns day-to-day security alerting, incident response and threat intelligence across a cloud-native microservice platform and internal IT estate, directing a Platform Ops team on remediation. Manages SIEM, endpoint and Microsoft 365 security tooling, vulnerability management and IAM, while maintaining ISO 27001 documentation and UK GDPR compliance as a by-product of good security practice.

Version 1 · Newcastle upon Tyne

Owns the Event Management tooling environment, acting as product owner and SME for Opsview, Nagios-based tools and integrations with ServiceNow, Engage and ConnectWise. Sets the technology roadmap, plans upgrades and migrations, and drives AI and automation to reduce alert noise and speed triage, while leading customer monitoring transitions and integrations.

eFinancialCareers · London

As a Senior Software Engineer, you will work on a cloud-native analytics and rapid delivery platform, supporting trading, risk management, and complex workflows. You will collaborate with quantitative teams and engineers to build reliable, scalable, and resilient systems, turning complex technology into reusable services and APIs.

Michael Page · Woking · £55,000 – £60,000 pa

Hands-on C# development within a five-person team and a solution architect, split roughly 60% on C# solutions and the rest on Azure DevOps. The role is AI-first, using Claude, and involves governing pipelines, approving deployments, monitoring Azure workloads and working on mainly greenfield Travel & Logistics projects.

Reperio Human Capital · Dublin, Ireland · £86,324 – £103,589 pa

Manage Kubernetes clusters for automated deployment and scale AWS cloud infrastructure using Terraform. Optimise platform performance, analyse potential disruptions, and build APIs for smooth integration. Works on cutting-edge AI technologies with a flexible culture requiring just one office day weekly.

Randstad Technologies Recruitment · London · £350 – £357 pd

Design, build and operate a provisioning engine that turns intent into standardised, compliant GCP networking resources such as VPCs, subnets, routing and private connectivity endpoints at enterprise scale. You'll write and validate production code, contribute to system design, and take part in operational ownership including monitoring and incident response within an agile team serving a financial organisation.

Databricks · London

Customer-facing AI engineering role delivering professional services engagements, helping clients build and productionize GenAI applications such as RAG, multi-agent systems and Text2SQL. Involves production rollouts, serving as a trusted technical advisor, and collaborating with product and engineering teams to shape the roadmap.

Experis · United Kingdom · £400 – £500 pd

Multiple contract roles supporting a large-scale technology programme, spanning data, ML and AI platform engineering, governance, security, reliability and service delivery. Work covers tools such as Python, SQL, Go, DataHub, Trino/Starburst, JupyterHub, OpenSearch, Entra ID/OIDC, FluxCD/Argo CD and Helm in cloud-native environments. Open to both hands-on specialists and technical leaders, with remote and global working.

Vallum Associates · London · £430 – £500 pd

Contract role focused on securing AI systems, spanning LLM and model security, AI red teaming, governance and guardrails, and secure CI/CD pipelines and configuration management. The engineer works within cross-functional, geographically dispersed teams and is expected to be client-facing, managing stakeholders while embedding security practices across the AI platform.