Engineering Jobs in Wales, United Kingdom

Chat Engine team within GitLab's AI Engineering organization builds the AI‑powered chat experience across the platform. Senior Backend Engineer designs and implements Python flow components and agentic flows, integrates large language models, and develops secure, high‑performance APIs for Duo Chat and the GitLab monolith.

Systems Engineering team at Rolls‑Royce Defence focuses on defining, integrating, verifying and assuring complex solutions for aerospace programs. Engineers develop requirements, apply model‑based systems engineering, conduct verification & validation, and support product qualification across multidisciplinary projects.

Assistant Engineer/Engineer – Civil at WSP in Bristol supports civil and bridge projects across rail and highways. Responsible for bridge design, strengthening, inspections, and civil/structural support.

Join Graphcore's Software Infrastructure team as a Build Engineer, shaping tools that streamline ML software delivery. You’ll design and maintain internal tooling for building, testing, and integrating the machine‑learning stack, ensuring reproducible, secure builds across distributed HPC platforms.

Assystem is a global nuclear engineering company accelerating the energy transition, and this Mechanical Engineer role supports all valve engineering activities for the HPC Project within the Joint Design Office (JDO) in Bridgwater, England. Day-to-day, the Valve Engineer undertakes technical clarifications, reviews and updates design assumptions, specifications, data sheets and documentation, performs engineering assessments and hand calculations, manages technical queries, and coordinates valv

Graphcore's Software Infrastructure team is building tools and services to scale and manage infrastructure for the Machine Learning Software Stack. As a Senior Software Engineer in Build Engineering, you will develop internal tooling for building, testing, and integrating the ML Software Stack, provide guidance on build practices and dependency management, and work closely with QA and development teams to ensure reproducible builds in secure, sandboxed environments.

Arriva is seeking an experienced PSV Mechanic/Engineer to support its bus and coach fleet across multiple UK depots. The role involves servicing, maintenance and repairs to Arriva and DVSA standards, vehicle fault diagnostics, preventative maintenance, MOT preparation and quality checks, and attending roadside breakdowns.

Arriva Yorkshire Limited is seeking experienced PSV Mechanic/Engineer candidates to support its ongoing engineering recruitment campaign across multiple depots in the North East. This evergreen vacancy invites applicants to express interest and will be matched to the most suitable depot among Castleford, Dewsbury, Heckmondwike, and Wakefield.

Arriva is seeking an experienced PSV Engineer / Mechanical Engineer to support multiple depots across the North East. The role involves servicing, maintenance and repairs to Arriva and DVSA standards, vehicle fault diagnostics, preventative maintenance, MOT preparation and quality checks, and attending roadside breakdowns.

Nuclear Systems Engineering at AtkinsRéalis focuses on delivering safe, reliable nuclear facilities and low‑carbon energy solutions. The Senior Principal Engineer leads safety assessments, hazards analysis and system health strategies across design, commissioning, operation and decommissioning, while partnering with clients and regulators.

Reinvention Deployment Engineering pods at Accenture build the largest Forward Deployed Engineer capability, embedding AI platform expertise directly inside client enterprises. The role leads end‑to‑end AI platform deployments, owns programme‑level outcomes, architects full‑stack solutions, and shapes AI adoption strategy for C‑suite stakeholders.

Assistant Engineer/Engineer – Bridges delivers civil and bridge engineering projects, supervising junior staff, designing and strengthening bridges, conducting assessments, preparing reports, and managing costs within WSP’s hybrid work environment.

Coder's Agentic Engineering team builds the systems behind its agentic development experience, making agents more capable, reliable, and useful across real development environments. As an Engineering Manager, you will lead and grow a team, set technical direction across the agent harness, integrations, and workflows, stay close to the code, and partner with Product and Design to turn agent capabilities into useful developer experiences.

As an Engineering Manager on Coder’s Agentic Engineering team, you’ll lead engineers building and evolving the systems behind Coder’s agentic development experience. Day-to-day, you’ll set technical direction across the agent harness, integrations, and developer workflows, stay close to the code on architecture and implementation, and coach engineers while improving reliability and performance of agentic systems.

Global Technology Centre Bristol team drives aerospace innovation by embedding modern systems engineering across software, controls, structures, and cryogenic domains. The Senior Systems Engineer leads framework development, Codebeamer integration, and mentors junior engineers to ensure consistent SE principles and compliance.

WSP's Geotechnics and Tunnelling business is hiring a Tunnelling Engineer or Senior Tunnelling Engineer to deliver below-ground construction projects across the UK. Based in Guildford, Birmingham, or London, you will produce and check engineering deliverables such as reports, design calculations, and drawings for tunnels, shafts, and other underground works, while collaborating with a multidisciplinary team on schemes ranging from micro-tunnels to major road and rail projects. The role combines

Linxon seeks an experienced Principal Design Engineer/Lead Engineer to spearhead turnkey HV GIS/AIS substation projects in Birmingham, UK. The role demands deep expertise in substation design, layout, grounding, lightning, steel, transformers, and HV/MV switchgear, alongside proficiency in system studies, load flow, short‑circuit analysis, and auxiliary power. The engineer will lead a distributed design team, coordinate with remote colleagues, and drive project execution from concept to as‑built

Trail of Bits is a security research and engineering firm that combines novel research with practical solutions to reduce client security risks. As a Senior Security Engineer on the Research & Engineering team, you will evaluate formal specifications, designs, and proofs to determine what is actually established versus assumed, then use state-of-the-art tools and frontier AI models to attack what the proof does not reach.

As an Engineer in the Bridges and Civils team within the Transportation business at AtkinsRéalis, you will shape the future of transportation across the UK and Ireland. You will develop high-quality civil and structural designs for new builds, renewals, maintenance, and assessments, with core work on bridge design and railway civil engineering projects.