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Principal United Kingdom Jobs (Hybrid work)

348 Job Offers

Principal Technician
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Principal Technician – Civil/Structural role in Leeds with a leading UK utility contractor. Drive technical quality and consistency across major infrastructure projects. Ideal for experienced CAD/BIM professionals with strong drawing production and coordination skills. Join a team focused on digi...
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90000.00 GBP / Year
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Turner Lovell
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Senior/ Principal Landscape Architect
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Join Morson’s award-winning Cardiff team as a Senior or Principal Landscape Architect. Lead LVIA, EIA, and design projects within a collaborative environmental consultancy. We seek Chartered professionals with 3-5+ years’ post-Chartership experience, AutoCAD proficiency, and a full driving licenc...
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Morson Talent
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Principal Solutions Architect
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Principal Solutions Architect sought to design and govern integrated digital project controls environments for major UK capital programmes. This domain-specialised role requires deep expertise in EPPM platforms (EcoSys, Primavera P6/Unifier, Aconex) and core processes like cost, schedule, risk, a...
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United Kingdom, London, Manchester
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Amentum
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Principal Consultant in Product Lifecycle Management - Aerospace & Defence
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Seeking a **Principal Consultant in Product Lifecycle Management** for our Aerospace & Defence practice. This hybrid role, based in **Bristol, London, or Manchester**, requires 10+ years of PLM expertise, including BOM management and Siemens solutions. You will lead PLM transformation initiatives...
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PA Consulting
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Principal Opto-Electronics Engineer
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Principal Opto-Electronics Engineer at Microsoft Research in Cambridge, UK. Drive high-risk, high-reward AI infrastructure programs, co-designing next-gen optical transceivers and connectivity systems. Requires a PhD, expertise in analog/mixed-signal CMOS circuits, signal processing, and end-to-e...
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Microsoft Corporation
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Principal Embedded Software Engineer
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Principal Embedded Software Engineer sought for maritime defence projects at TKMS Atlas in Winfrith Newburgh, UK. This senior hands-on role involves leading embedded C/C++ development for underwater vehicle control systems and sonar equipment. You will define engineering processes, guide teams, a...
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Location
United Kingdom, Winfrith Newburgh
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Morson Talent
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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. A strat...
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Tripadvisor
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Principal Digital Investigations Analyst
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Principal Digital Investigations Analyst sought for London-based role tackling disinformation and digital threats. Leverage advanced OSINT skills to investigate state and non-state actors, attribute information operations, and produce concise threat reports. Requires 5+ years in OSINT, client man...
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Protection Group International
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Principal AI Software Engineer, Senior Vice President
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Principal AI Software Engineer, SVP role in London. Architect scalable backend systems for advanced AI tools, leveraging expert Python, FastAPI, and Generative AI frameworks like LangChain. Requires deep ML knowledge and full lifecycle ownership. C++ expertise is a bonus. Benefits include 27+ day...
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Citi
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Cdm Principal Designer
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A design-led consultancy seeks an Architect or Design professional to transition into a CDM Principal Designer role in London. You will lead diverse projects, applying design risk management to eliminate hazards at early stages. The role requires strong knowledge of CDM Regulations 2015 and clear...
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50000.00 - 55000.00 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 Manchester. You will lead design risk management across diverse projects, ensuring compliance with CDM 2015 Regulations. This hybrid role offers a car allowance, generous bonus,...
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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 London with a fast-growing digital business. Lead a small analytics team, driving commercially impactful insight across a critical domain. Requires advanced SQL, dbt, and visualization skills, plus experience mentoring analysts. High-ownership position influencing s...
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95000.00 - 105000.00 GBP / Year
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Data Idols
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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 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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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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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.