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Principal United Kingdom Jobs

592 Job Offers

Principal Security Assurance & Compliance Manager
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Principal Security Assurance & Compliance Manager role at Vodafone in Newbury, UK. Lead cyber security compliance, risk assessments, and GR&C frameworks across global cloud infrastructure. Requires 5+ years in ISO 27001, NIST, GDPR, and emerging EU regulations. Drive regulatory assurance, manage ...
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Vodafone
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Principal Engineer - Test
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Principal Engineer - Test role in Cambridge, UK, focused on validating Core AI Services. You will design automated testing frameworks for cloud-native .NET applications on Azure, ensuring API performance and security. Join an Agile team to build AI-specific evaluation tools, mentor juniors, and d...
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Codvo AI
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Principal Pricing Analyst
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Principal Pricing Analyst role with a leading personal lines insurer in Surrey. You will lead complex pricing projects, enhance technical models using Radar, and drive optimisation initiatives. This high-impact position requires strong general insurance pricing experience and a proven ability to ...
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68000.00 - 72000.00 GBP / Year
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Eames Consulting
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Principal Product Data Scientist
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Lead product data science strategy in London, driving AI and experimentation to shape customer experiences. Expert-level Python, SQL, and machine learning skills required. Act as a strategic advisor to senior leadership, championing causal inference and next-gen tooling. Ideal for candidates with...
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Tripadvisor
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Principal Product Data Scientist
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Tripadvisor seeks a Principal Product Data Scientist in London to lead data science strategy, driving product innovation with advanced analytics and AI. You’ll leverage expert Python, SQL, and machine learning skills to influence senior leadership and embed data-driven decisions. This role offers...
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Tripadvisor
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Principal Device Drivers Software Engineer
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Principal Device Drivers Software Engineer sought to develop low-level embedded software for market-leading critical communication radios in Cambridge, UK. You will design, implement, and test device drivers for Embedded Linux, FreeRTOS, and ARM BSPs. Requires expert C skills, real-time debugging...
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75000.00 GBP / Year
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rmg digital
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Principal Technical Program Manager - Forward Deployed Engineering
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Lead complex technical programs as a Principal TPM on Microsoft's Forward Deployed Engineering team in London. Embed with strategic customers to co-engineer AI-powered, cloud-based solutions, driving measurable business outcomes with high autonomy. Requires cross-functional project management exp...
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91800.00 - 154700.00 GBP / Year
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Microsoft Corporation
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Principal Systems Engineer
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Principal Systems Engineer sought for the Global Combat Air Programme (GCAP) in Luton, UK. You will drive system requirements development, interface definition, and design integration using Matlab and Cameo. Ideal candidates bring aerospace/defence systems engineering experience and agile lifecyc...
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Morson Talent
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Principal Highways Engineer
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Principal Highways Engineer role in Stockport, UK. Seeking a Chartered or near-Chartered civil engineer with strong highways design experience using UK standards (DMRB, MCHW, NEC). Lead detailed design, mentor junior engineers, and coordinate multi-disciplinary delivery from concept to constructi...
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Morson Talent
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Principal Engineer Systems Engineering Architecture
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Principal Systems Engineer sought for a leading defence client in Barrow-in-Furness, UK, to drive complex submarine projects. This role demands deep expertise in systems engineering architecture, technical leadership, and design authority for sub-systems. You will produce design specifications, l...
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United Kingdom, Barrow-in-Furness
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58.00 - 78.33 GBP / Hour
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Morson Talent
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Cdm Principal Designer
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Join a leading Construction Consultancy as a CDM Principal Designer in scenic London. Leverage your 3+ years of CDM experience and NEBOSH Construction qualification to deliver Design Risk Management with minimal site visits. Enjoy up to £55,000, a car allowance, free barista coffee, and exception...
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50000.00 - 55000.00 GBP / Year
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Brandon James
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Senior Building Regulation Principal Designer
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Senior Building Regulation Principal Designer role in Maidstone with a leading multi-disciplinary consultancy. Lead compliance on complex new build projects across Leisure, Universities, and Residential (HRBs). Requires 7+ years in Architectural, Design, or Building Control, plus ARB/RIBA members...
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65000.00 - 75000.00 GBP / Year
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Brandon James
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Principal Ecological Consultant
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Principal Ecological Consultant role in Manchester, UK. Lead a regional ecology team, delivering high-quality services for infrastructure and development projects. Provide strategic advice on balancing project delivery with environmental protection, ensuring compliance with wildlife legislation. ...
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Pavers
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Principal Designer for CDM and Building Regulations
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Seeking an experienced **Principal Designer** in **Bury Saint Edmunds** to lead **CDM** and **Building Regulations** compliance on large-scale Commercial, Healthcare, and complex Residential projects. Ideal candidates are APS-certified or ARB-registered Architects with 5+ years in a Principal Des...
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70000.00 - 80000.00 GBP / Year
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Brandon James
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Principal Designer for CDM and Building Regulations
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Join a multidisciplinary consultancy as a Principal Designer for CDM and Building Regulations in Southampton. This role offers a 50/50 split between CDM and Building Regulations compliance, managing risk on large-scale commercial, healthcare, and complex residential projects. Ideal for an APS-cer...
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70000.00 - 80000.00 GBP / Year
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Brandon James
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Principal Fire Engineer
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Principal Fire Engineer sought by a leading fire safety consultancy in Manchester. This senior role involves leading complex fire engineering projects across residential, commercial, and high-rise buildings. You will produce fire strategies, ensure compliance with Approved Document B, and mentor ...
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70000.00 - 90000.00 GBP / Year
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Brandon James
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Principal Consultant in Product Lifecycle Management - Aerospace & Defence
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Principal Consultant in PLM for Aerospace & Defence. Lead digital engineering transformations across the product lifecycle. Requires 10+ years’ PLM expertise, deep BOM/change management skills, and consulting experience. Based in Manchester, Bristol, or London with benefits including private heal...
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United Kingdom, Manchester, Bristol, London
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PA Consulting
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Cdm Principal Designer – Architect
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ARB/RIBA Architect seeking a CDM Principal Designer role? Join an employee-owned consultancy in Newcastle upon Tyne. Lead design risk management across UK mega-projects in residential, commercial, and healthcare sectors. Leverage your architectural expertise to eliminate risks early under CDM 201...
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United Kingdom, Newcastle upon Tyne
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45000.00 - 55000.00 GBP / Year
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Brandon James
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Senior CDM Principal Designer
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Senior CDM Principal Designer role in Birmingham with a market-leading consultancy. Lead major projects across complex sectors, leveraging long-standing frameworks for stability. Requires 5+ years’ CDM experience, APS/IOSH membership, and business development skills. Benefits include car allowanc...
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50000.00 - 70000.00 GBP / Year
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Brandon James
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Principal Civil Design Engineer
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Principal Civil Design Engineer sought for a Derby-based role with hybrid working. You will lead water and sewage treatment plant designs, ensuring cost-effective, compliant solutions. Requires 10+ years’ experience, Chartered status (ICE/IStructE), and strong team management skills. Benefits inc...
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70000.00 - 80000.00 GBP / Year
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Morson Talent
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About the Principal role

A Principal role represents a senior leadership position found across various industries, from construction and engineering to technology and product management. Individuals in these jobs are trusted with high-level strategic oversight, complex problem-solving, and driving significant organizational impact. Unlike entry-level or mid-career positions, Principal jobs typically require a deep well of specialized expertise, a proven track record of leadership, and the ability to influence direction without direct managerial authority over every team member.

In a professional context, a Principal is often the highest individual contributor or a senior team lead responsible for shaping the vision and execution of critical initiatives. For example, in design and construction sectors, a Principal Designer focuses on risk management from the earliest stages of a project. They ensure that health and safety regulations, such as the CDM Regulations 2015, are integrated into the design process, mitigating hazards before construction begins. This involves leading cross-functional coordination, conducting design reviews, and ensuring a seamless handover to contractors.

In technology and business strategy, Principal Product Managers own the end-to-end lifecycle of complex service portfolios or product lines. They are responsible for defining strategy, developing business cases, and launching innovative offerings that drive customer adoption and revenue growth. These roles demand a data-driven approach to decision-making, strong cross-functional leadership, and the ability to influence executives and stakeholders across engineering, sales, marketing, and customer success teams. Common responsibilities include market analysis, competitive benchmarking, pricing strategy, and building go-to-market plans.

Typical skills required for Principal jobs include exceptional communication and presentation abilities, strategic thinking, and a high degree of autonomy. Candidates usually possess a bachelor’s or master’s degree in a relevant field, combined with significant experience—often eight or more years in a related domain. Technical proficiency is critical, whether in understanding network security, cloud infrastructure, or construction regulations. Soft skills such as negotiation, mentorship, and the ability to drive alignment in matrixed organizations are equally important.

Ultimately, Principal jobs are about leading from the front, solving the most challenging problems, and setting the standard for excellence within an organization. Whether mitigating risk on a construction site or defining the future of a software platform, these professionals are integral to driving meaningful, lasting results.