2 information technology jobs found in Cardiff

Head of Data (Contract) Bristol (Hybrid) | Outside IR35 | £600–£700/day | 6 months The opportunity We’re working with a growing, data-led business entering a key phase in its evolution. They’re moving from a largely manual, compliance-driven environment to a more structured, product-focused model, with data at the center of how the business operates and scales. This contract is about accelerating that shift. You’ll step into an environment where data exists, but isn’t yet fully structured, connected, or operating as a true platform. The goal is to bring clarity, shape the architecture, and build something reliable enough to support both internal use and customer-facing products. The role This is a hands-on Head of Data contract, sitting at the intersection of data engineering, architecture, and product enablement. You’ll take ownership of a fragmented data landscape and turn it into a more coherent, scalable platform - one that supports reporting,...

Software Engineer | Bazel 📍 Bristol 🏠 Hybrid work model -3 days in the office, 2 days wfh 💶 Up to £600/day - Outside IR35 📄 6 months contract with possible extensions 5V Tech are working with a fast-growing deep tech company building a completely new class of AI accelerator hardware and software from first principles. They’re now looking for an engineer to take ownership of Bazel at scale and build the tooling infrastructure that powers the entire engineering organisation. This is a genuinely high-impact role in a greenfield environment, where you’ll help shape the build systems, developer workflows, and CI infrastructure from the ground up. What you’ll be working on: • Designing and owning Bazel rules and extensions • Scaling a large monorepo across Python, C++, Rust, SystemVerilog, and ML workloads • Building reproducible, multi-language build pipelines • Optimising CI performance across large compute clusters • Improving the developer...