6 principal mechanical design engineer jobs found

Senior and Principal Security Architects £50-£90 per hour (Dependent on experience and level) - Inside IR35 12 month contracts Hybrid - 2/3 days a week on site - Warton (PR4) **Applicants must have the right to work in the UK** **Successful applicants must be eligible for SC/DV clearance** Role Purpose / Overview Highly experienced security architects with strong technical credentials across enterprise, cloud, network and classified environments. Responsible for designing end-to-end secure architectures (HLD/LLD), leading Design Authorities and Technical Design Authorities, and providing architectural assurance across multi-supplier programmes up to TOP SECRET / Above Secret classifications. Ensures Secure-by-Design principles are embedded from the outset across all programmes. Key Outcomes Security is consistently embedded into system design across all programmes Architectural decisions align with Secure-by-Design principles from the outset Complex, multi-partner and...

Principal Platform Engineer (CyberArk/PAM) Active DV Clearance Highly Preferred, Lapsed DV Considered | UKEO | 6 Month Contract Initially | £100/hour Umbrella | Fully Onsite in Yeovil (compressed hours considered) We're recruiting for an experienced Principal Platform Engineer to join a high-profile defence programme, providing specialist expertise across Privileged Access Management (PAM) within a secure enterprise environment. This role is suited to someone with strong CyberArk and enterprise platform experience who enjoys solving complex technical challenges, influencing solution design and acting as the subject matter expert within a multidisciplinary engineering team. Key Responsibilities Act as the technical authority for the Privileged Access Management (PAM) domain. Lead the design and implementation of secure platform solutions across on-premise, hybrid and cloud environments. Capture, analyse and interpret complex customer requirements to drive secure solution...

Principal Product Designer (UI Design & Digital Product Design) £650 per day | Inside IR35 6-month contract London – Hybrid (2 days per week onsite) Overview We're looking for an exceptional Principal Product Designer to play a key role in building a large-scale digital platform from the ground up. This is a rare greenfield opportunity to define the visual identity, interaction patterns and design standards for a suite of modern digital products. Working closely with Product, Engineering and senior stakeholders, you'll create outstanding user experiences while establishing a scalable design system that will underpin the platform for years to come. This role is ideal for a highly experienced designer with exceptional UI and interaction design skills, a strong portfolio of shipped products, and a passion for creating elegant, intuitive experiences at scale. Role & Responsibilities Own and evolve the visual design language across multiple digital products. Create...

Principal Infrastructure Engineer +6 months + +DV cleared role - current active clearance is essential +Inside IR35 +£700 - £725 a day +On site in Yeovil We are seeking an experienced Principal Infrastructure Engineer to lead complex infrastructure projects and drive innovation within our organisation. This role offers a unique opportunity to shape the future of our technical architecture while collaborating with cross-functional teams to deliver scalable and reliable infrastructure solutions. Key Responsibilities: Lead the design, development, and implementation of enterprise-level infrastructure solutions, including networking, cloud services, and data centres. Provide technical expertise and mentorship to senior engineers and technical teams. Develop strategies for infrastructure scalability, security, and performance optimization. Oversee infrastructure migrations, upgrades, and maintenance activities with minimal disruption. Collaborate with stakeholders to define...

Principal Platform Engineer - Ref: 1733 Initial contract until 27/12/26 £98.82ph, UMB, inside IR35 Yeovil - Full time onsite Please note, DV clearance is required for this positon and the programme will have "UK Eyes Only" restrictions. Your Impact Are you ready to take on complex technical challenges at the forefront of cyber and platform engineering? At Leonardo, our Principal Platform Engineers are hands-on experts who shape the design, integration, and delivery of secure platforms that keep our customers' missions running. Your work at Leonardo UK will see you take the lead in solving customer problems in an agile, innovative and team-centric manner. The role may involve a blended hybrid working model, with a mixture of working from home and working on site at one of our Leonardo offices to ensure close collaboration with the wider team and with our customers. Leonardo UK is seeking a Principal Platform Engineer to join the Cyber & Security Solutions Division...

Lead Backend Software Engineer – Data Services Federated Data Services | Distributed Systems | Apache Spark | DataFusion | Python | Kubernetes Location: London (2 days per week onsite) Rate: £700–£800 per day (Outside IR35) Duration: Initial 6-month contract with likely extension Overview We're looking for an experienced Lead Backend Software Engineer to join a high-profile programme building secure, cloud-native data services that will support data-driven research and innovation at national scale. This is a founding engineering role, offering the opportunity to shape the architecture, engineering standards, and core data services from the ground up. Working closely with the Engineering Manager and a small team of senior engineers, you'll establish the technical foundations for a complex federated data platform operating within a highly regulated environment. We're looking for someone who enjoys building from first principles, thrives in ambiguity, and can balance strategic...