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Principal United Kingdom Jobs

592 Job Offers

Principal Architect
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Principal Architect role in Dunstable, UK, leading end-to-end domain architecture for Whitbread’s Hotels & Restaurants tech team. Drive governance, align solution designs with EA standards, and manage multi-supplier ecosystems. Requires expertise in enterprise architecture, integration, security,...
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BEEFEATER
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Deputy Principal Property Lawyer
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A local authority in the South East seeks an experienced Locum Deputy Principal Property Lawyer for a newly created management role. Overseeing a mixed commercial and residential property function, you will supervise and expand a legal team. Ideal candidates bring 10+ years PQE and extensive loca...
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60.00 - 65.00 GBP / Hour
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Vivid Resourcing
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Principal Sales Engineer
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Seeking a Principal Sales Engineer in London to join Seismic’s AI-powered enablement platform. You’ll partner with sales teams, delivering agentic AI demonstrations and driving enterprise SaaS opportunities within Financial Services. Requires 8+ years presales experience, fluency in AI governance...
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Seismic
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Snr/ Principal Associate Contentious Construction
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Senior/Principal Associate sought for Contentious Construction role in Birmingham, Exeter, Leeds, London, Manchester, or Winchester. You will handle complex disputes across PFI, NEC, and JCT contracts for public and private clients in health, local government, and housing. Ideal candidates bring ...
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United Kingdom, Birmingham, Exeter, Leeds, London, Manchester, Winchester
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360 Resourcing Solutions
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CDM Principal Designer
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Join a fast-growing CDM consultancy as a CDM Principal Designer in Brentwood, UK. You will manage design risk across diverse projects, including hospitals and commercial developments, leveraging your NEBOSH qualification and 2+ years of experience. Enjoy a comprehensive benefits package featuring...
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45000.00 - 55000.00 GBP / Year
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Brandon James
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Cdm Principal Designer
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Join a fast-growing CDM consultancy in London as a CDM Principal Designer, managing diverse projects from hospitals to mixed-use developments. You’ll need 2+ years in design risk management and a NEBOSH qualification. Enjoy unparalleled autonomy, excellent work-life balance, and benefits includin...
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45000.00 - 55000.00 GBP / Year
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Brandon James
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Cdm Principal Designer
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Join a fast-growing CDM consultancy in Brighton as a CDM Principal Designer, working on diverse projects from hospitals to mixed-use developments. You’ll need 2+ years in a Principal Design role with NEBOSH Construction or equivalent. Enjoy autonomy, excellent work-life balance, and benefits incl...
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United Kingdom, Brighton and Hove
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45000.00 - 55000.00 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 Kingston upon Thames. You’ll manage design-stage risk across Commercial, Heritage, and Healthcare sectors, with hybrid work and a supportive office environment. Requires 2+ years in CDM/Design Risk Management and N...
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United Kingdom, Kingston upon Thames
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55000.00 - 65000.00 GBP / Year
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Brandon James
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CDM Principal Designer
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Seeking an experienced **CDM Principal Designer** in Banbury, UK. You will leverage 4+ years of expertise in Design Risk Management, holding a NEBOSH Construction certificate and TechIOSH/IMaPS membership. Key duties include limiting major CDM risks during design and ensuring seamless Principal C...
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50000.00 - 55000.00 GBP / Year
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Brandon James
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Senior Principal Associate Contentious Construction
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Senior Principal Associate Contentious Construction sought for a national team across Birmingham, Exeter, Leeds, London, Manchester, and Winchester. You will advise on high-value, complex projects for public and private clients in health, housing, and emergency services. Key requirements include ...
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Location
United Kingdom, Birmingham, Exeter, Leeds, London, Manchester, Winchester
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Capsticks Solicitors LLP
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Principal Data Engineer/Data Architect
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Principal Data Engineer/Data Architect sought in London to design scalable data warehouse architecture, build ELT pipelines, and drive data-driven decisions. Expertise in Snowflake, PostgreSQL, Python, and data modelling required. Mentor engineers, ensure system uptime, and deliver data products....
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RedCloud
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Principal Electrical Engineer
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Principal Electrical Engineer sought for Egis Transport Solutions in London. Lead rail station electrical design, manage a team, and ensure project delivery. Requires a degree, chartered status, and deep knowledge of Network Rail, HS2, and TfL standards. Join a dynamic team driving innovation in ...
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Egis in the UK
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Principal Optical Scientist
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Join Microsoft Research in Cambridge, UK as a Principal Optical Scientist to shape next-gen AI infrastructure. You will lead high-risk optical system design, modelling, and simulation using Zemax and Python, bridging research with production. This role requires a Doctorate in Optics or equivalent...
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Microsoft Corporation
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Interim Principal Accountant
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Seeking an experienced **Interim Principal Accountant** for a senior role in London, UK. You will drive **budgeting and planning** within a local government organisation, producing critical budget reports and managing allocations. Collaborate with the Strategy and Planning team to align financial...
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Allen Lane
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Cdm Principal Designer – Architect
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ARB/RIBA Architect sought for a unique CDM Principal Designer role with a leading multi-disciplinary consultancy in Sheffield. You will lead design risk management across diverse residential, commercial, and healthcare projects. This hybrid position offers a car allowance, generous bonus, and gol...
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Salary
45000.00 - 60000.00 GBP / Year
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Brandon James
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Cdm Principal Designer – Architect
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A market-leading consultancy seeks an ARB/RIBA-registered Architect to transition into a CDM Principal Designer role in Liverpool. You will lead design risk management across diverse residential, commercial, and healthcare projects. This hybrid role offers a car allowance, generous bonus, gold-st...
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45000.00 - 60000.00 GBP / Year
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Brandon James
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Principal Data Analyst
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Principal Data Analyst role in the West Midlands, UK. Lead complex data analysis, set standards for governance, quality, and visualisation across major programmes. Requires expertise in statistical methods, stakeholder management, and mentoring. Drive strategic decisions with trusted insights usi...
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United Kingdom, West Midlands
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AWTG
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Principal Optical Packaging Engineer
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Join Microsoft Research in Cambridge, UK as a Principal Optical Packaging Engineer to shape next-gen AI infrastructure. You will lead co-packaged optics (CPO) architecture, advanced 2.5D/3D packaging, and scalable optical assembly. Ideal candidates have a Master’s/PhD in Photonics or EE, deep CPO...
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Microsoft Corporation
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Principal Tech Team Lead (Front End)
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Principal Tech Team Lead (Front End) role in London. Lead and mentor 3-5 Tech Team Leads, scaling React/TypeScript architecture and driving performance, accessibility, and testing standards. Requires deep frontend expertise, coaching skills, and a servant-leadership mindset. Benefits include £85k...
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Salary
85000.00 - 125000.00 GBP / Year
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Xelix
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Principal Safety Case Engineer
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Principal Safety Case Engineer role in Warrington, UK, leading nuclear safety projects. You will develop safety case strategies, conduct radiological assessments, and mentor teams. Requires a degree, Chartered status (or working towards), and broad safety case experience. Excellent benefits packa...
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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.