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Principal United Kingdom Jobs

592 Job Offers

Principal EICA Engineer - Water / Wastewater
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Lead Principal EICA Engineer for UK Water/Wastewater projects. Drive sustainable infrastructure design with Egis, a global leader. Requires Chartered status, 8-10+ years experience, and expertise in multidisciplinary treatment solutions. Based in Bristol with hybrid working, accelerated progressi...
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Egis in the UK
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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 inspections. Enjoy up to £55,000, a car allowance, annual bonus, and exceptional...
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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 complex new build projects across Leisure, Universities, and Residential (HRBs) sectors. Requires 7+ years in Architectural, Design, or Building Control, with ARB/RIBA/MCIAT members...
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65000.00 - 75000.00 GBP / Year
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Brandon James
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Principal Designer
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55000.00 GBP / Year
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Carriera Limited
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Principal Engineer - Technical Lead (Gen AI and MACH Architecture)
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Principal Engineer - Technical Lead (Gen AI & MACH Architecture) sought by AKQA London. This hands-on role blends 65-70% delivery with 30-35% technical leadership, designing and shipping enterprise-grade systems. You'll lead complex programmes spanning Generative AI, MACH architectures, and cloud...
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AKQA
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Principal Product Manager - Retention
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Admiral Group Plc
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Principal Mechanical Critical Systems Engineer
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United Kingdom, Birmingham, London, Manchester, Newcastle, Warsaw, Madrid
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Cundall
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Principal Product Manager - Growth
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Lead growth strategy as Principal Product Manager at Veygo in Cardiff. Own the end-to-end acquisition and onboarding experience, driving measurable impact on conversion, mobile adoption, and customer lifetime value. Leverage data, experimentation, and cross-functional collaboration to shape produ...
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Admiral Group Plc
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Principal Client Partner
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Tripadvisor
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Senior CDM Principal Designer
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Senior CDM Principal Designer role with a respected employee-owned consultancy in Cambridge. You’ll enjoy remote/hybrid work, full autonomy, and a profit share bonus plus car allowance. Essential requirements include 5+ years in CDM, NEBOSH Construction, and IOSH/APS membership. Ideal for a techn...
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60000.00 - 70000.00 GBP / Year
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Brandon James
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Senior CDM Principal Designer
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55000.00 - 65000.00 GBP / Year
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Brandon James
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Principal Fire Engineer
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Principal Fire Engineer sought for a leading specialist consultancy in the North West. You will lead fire strategy and building safety on complex high-rise, residential, and commercial projects across the UK. Ideal candidates have a Fire Engineering degree, extensive consultancy experience, and s...
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80000.00 - 95000.00 GBP / Year
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Brandon James
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Principal Production Engineer
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Principal Production Engineer sought to lead manufacturing and NPI in Poynton, UK. This role demands expertise in DFM, DFT, and RF systems within bespoke electronics environments. You will drive quality, efficiency, and customer satisfaction while enjoying 23 days holiday, flexible working, and a...
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360 Resourcing Solutions
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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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Location
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68000.00 - 72000.00 GBP / Year
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Eames Consulting
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Cdm Principal Designer
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Join a design-led consultancy in Birmingham as a CDM Principal Designer, working on commercial, residential, and mixed-use projects. With flexible office days, a car allowance, bonus, and healthcare, you’ll manage design-stage risks and ensure seamless contractor handovers. Ideal for those with 3...
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50000.00 - 60000.00 GBP / Year
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Brandon James
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CDM Principal Designer
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Join a century-established construction consultancy as a CDM Principal Designer in Nottingham. You’ll manage design-stage risks across Commercial, Heritage, and Healthcare projects, with hybrid work and a supportive office environment. Requires 2+ years in CDM Principal Design or Design Risk Mana...
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50000.00 - 55000.00 GBP / Year
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Brandon James
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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. This Principal role requires expert Python/SQL skills, deep statistical modeling, and a track record of influencing product roadmaps. You will champion causal inference, machine learning, a...
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Tripadvisor
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Principal Product Data Scientist
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Principal Product Data Scientist role in London: Lead technical strategy for product data science, driving AI and experimentation innovation. Expert-level Python, SQL, and machine learning required. Shape product vision, influence senior leadership, and integrate emerging AI technologies. Ideal f...
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Tripadvisor
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Principal Designer, TIDAL
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Principal Designer at TIDAL: Lead product vision and design strategy for a music-tech brand shaping culture. This remote London role demands 8+ years of experience, systems thinking, and AI fluency. Drive high-impact initiatives, mentor teams, and define design excellence. Join a nimble team buil...
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Block
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Principal Fire Engineer
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Principal Fire Engineer role in Manchester with a leading consultancy. Deliver complex fire safety strategies, lead technical reviews, and mentor junior engineers. Requires 5+ years’ experience, UK legislation knowledge, and strong project management skills. Benefits include 27 days leave, privat...
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Salary
60000.00 - 65000.00 GBP / Year
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Brandon James
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Until further notice

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.