Job offers - CrawlJobs

Principal United Kingdom Jobs (On-site work)

104 Job Offers

Principal Thermal Mechanical Engineer
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Principal Thermal Mechanical Engineer sought for a 6-month contract at BAE Systems in Cowes (3-4 days on-site). Leverage expertise in heat transfer, fluid mechanics, and thermodynamics to design and validate thermal systems for naval radar. Lead peer reviews, mentor engineering teams, and optimis...
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51.86 - 70.00 GBP / Hour
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Outsource UK
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Until further notice
Principal Electrical Engineer
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Principal Electrical Engineer sought by Egis Transport Solutions to lead rail station electrical design in London. You will manage a team, deliver full lifecycle designs, and ensure compliance with Network Rail, HS2, and TfL standards. Requires a degree, chartered status, and expertise in Trimble...
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Not provided
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Egis in the UK
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Principal Embedded Software Engineer
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Principal Embedded Software Engineer sought to lead architecture, technical delivery, and strategy for advanced embedded systems in the UK. This senior, hands-on role demands expertise in C/C++, real-time OS (FreeRTOS), and electrical power systems. You will own complex projects, drive Agile proc...
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75000.00 GBP / Year
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Zenovo
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Principal Recruitment Consultant
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Senior Principal Recruitment Consultant sought for Operam Education Group in Barnsley, South Yorkshire. Drive full 360 recruitment for SEND, Primary, or Secondary schools with uncapped commission. Enjoy reduced hours during school holidays, up to 34 days leave, and leadership development. Ideal f...
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28500.00 - 37000.00 GBP / Year
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Operam Education Group
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Sr Principal Engineer - Software Quality
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Sr. Principal Engineer - Software Quality role at Baxter in Gloucester, UK. Lead software quality for life-saving medical devices, ensuring compliance with ISO 13485, EU MDR, and FDA standards. Requires 10+ years in regulated software engineering, expertise in IEC 62304, and Agile integration. En...
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Not provided
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Baxter
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Senior CDM Principal Designer
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Senior CDM Principal Designer role with a respected South London consultancy. Lead diverse education, healthcare, and residential projects across London. Requires NEBOSH Construction Certificate, APS membership (CMaPS preferred), and extensive CDM experience. Benefits include 26 days leave, pensi...
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65000.00 - 75000.00 GBP / Year
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Brandon James
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Cdm Principal Designer
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Join a leading London CDM consultancy as a **CDM Principal Designer**, delivering Design Risk Management on commercial, residential, and mixed-use projects. You’ll need a NEBOSH Construction Certificate and APS membership (IMaPS/CMaPS). Enjoy 25 days leave, pension, and clear career progression i...
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50000.00 - 55000.00 GBP / Year
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Brandon James
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Principal Developer
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Principal Developer role in Kettering, UK: lead technical design and delivery of cloud-native applications using Python, Django, Flask, React.js, and SQL. Drive DevSecOps, CI/CD, and Docker containerisation while mentoring teams and overseeing enterprise-grade APIs. Expert-level Python, AI augmen...
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Not provided
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Social Value Portal Ltd
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Sr Principal Engineer - Software Quality
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Sr Principal Engineer - Software Quality role in Gloucester, UK, driving compliance for life-saving medical devices. Lead Agile integration with ISO 13485, IEC 62304, and EU MDR. Requires 10+ years in software quality engineering and deep FDA expertise. Enjoy benefits like professional developmen...
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Not provided
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Baxter
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Assistant Principal & Deputy Safeguarding Lead
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OneSchool Global UK seeks an Assistant Campus Principal & Deputy Safeguarding Lead in Coventry. This senior leadership role drives educational excellence, student wellbeing, and safeguarding compliance. Candidates need QTS, significant teaching experience, and current DSL training. The position o...
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360 Resourcing Solutions
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Principal Market Analyst
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Principal Market Analyst sought in Crawley for a leading aerospace & defence client. This role drives business-winning strategy through black hat, value prop, and price-to-win analyses. Requires expertise in market forecasting, competitor profiling, and UK defence market intelligence. Ideal for a...
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Morson Talent
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Principal Fire Design Engineer
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Principal Fire Design Engineer sought for a London-based consultancy. You will lead fire suppression system design, including sprinklers and water mist, across diverse projects. This role demands expertise in hydraulic calculations, RIBA stages, and British Standards. Join as a key technical expe...
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Morson Talent
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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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Senior CDM Principal Designer
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Senior CDM Principal Designer role in Newcastle with a design-led practice offering clear career progression. You will lead CDM 2015 compliance, manage design risk reviews, and mentor junior staff across Commercial, Infrastructure, Education, and Healthcare projects. Requires NEBOSH Construction ...
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United Kingdom, Newcastle upon Tyne
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55000.00 - 65000.00 GBP / Year
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Brandon James
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Deputy Campus Principal
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United Kingdom, Prologis Park
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Not provided
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360 Resourcing Solutions
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Principal IT/AV Consultant
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Principal IT/AV Consultant sought in London to lead innovative design solutions and technical teams. You’ll manage projects, mentor engineers, and drive stakeholder engagement within a multidisciplinary environment. Ideal candidates are Chartered Engineers with a degree in Electronics or Computer...
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Not provided
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Cundall
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Principal AI Platform Engineer
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Not provided
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Vodafone
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Principal GTM Media Strategist
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Appian seeks a Principal GTM Media Strategist in London to build an AI-native creative engine for B2B tech marketing. You will lead content strategy, video production, and digital asset creation using Adobe Creative Cloud and generative AI tools. This senior role requires 10+ years in product mar...
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75000.00 - 175000.00 GBP / Year
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Appian Corporation
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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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Until further notice
Principal Designer
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Salary
55000.00 GBP / Year
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Carriera Limited
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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.