Job offers - CrawlJobs

Principal United Kingdom, London Jobs (Hybrid work)

118 Job Offers

New
Principal – Environmental Impact Assessment (EIA) & Consents
Save Icon
Egis seeks a Principal for EIA & Consents in London, Manchester or Bristol (hybrid). Lead environmental assessments across T&D, energy and transport projects. Requires EIA experience and UK planning knowledge.
Salary Icon
Salary
Not provided
egis-group.com Logo
Egis Group
Expiration Date
Until further notice
New
Principal Success Architect - AI Control Tower
Save Icon
Lead enterprise AI adoption as a Principal Success Architect in London. Guide customers through AI Control Tower implementation, EU AI Act compliance, and governance frameworks. Requires 5+ years in GRC or AI governance with strong advisory skills.
Salary Icon
Salary
Not provided
armis.com Logo
Armis
Expiration Date
Until further notice
New
Product Manager, New Product Bet (Principal-level)
Save Icon
Synthesia seeks a Principal Product Manager in London to own Surveys and Guidance for a new agentic, real-time AI product bet. Requires zero-to-one experience, strong strategy skills, and commercial impact focus.
Salary Icon
Salary
Not provided
Synthesia
Expiration Date
Until further notice
New
Principal Data Engineer
Save Icon
Lead the Future State Data Platform strategy at Funding Circle in London. Requires 10+ years in Data Engineering and deep Snowflake, AWS, dbt and Airflow expertise. Enjoy flexible benefits and share schemes.
Salary Icon
Salary
Not provided
Funding Circle
Expiration Date
Until further notice
New
Principal Engineer
Save Icon
Motorway seeks a Principal Engineer in London to set technical strategy across product areas. Requires 10+ years in software engineering, deep AWS expertise, and strong API/identity architecture skills. Hybrid role with stock options.
Salary Icon
Salary
Not provided
Motorway
Expiration Date
Until further notice
New
Industry GTM Lead/ Industry Principal - Construction & Engineering
Save Icon
Lead GTM strategy for Construction & Engineering at IFS in London. Drive near-term revenue, align sales teams, and champion customers with AI-powered enterprise software. Requires deep industry and technical expertise.
Salary Icon
Salary
Not provided
ifs.com Logo
IFS
Expiration Date
Until further notice
Principal Network Modeller
Save Icon
Lead Infoworks ICM network modelling at Egis in London, Bristol or Manchester (hybrid). Shape sustainable water infrastructure, mentor colleagues and deliver UK-wide projects. 8+ years' experience required.
Salary Icon
Salary
Not provided
egis-group.com Logo
Egis Group
Expiration Date
Until further notice
Principal Machine Learning Engineer
Save Icon
ASOS seeks a Principal Machine Learning Engineer in London to lead AI-powered fashion discovery within the Search & Discovery team. Requires extensive experience building large-scale ML systems, owning technical architecture, and a product-focused mindset.
Salary Icon
Salary
Not provided
ASOS
Expiration Date
Until further notice
Principal Fire Engineer
Save Icon
AECOM seeks a Principal Fire Engineer in London to lead fire engineering design projects, CFD and evacuation modelling. Requires CEng status, UK regulations expertise, and mentoring skills.
Salary Icon
Salary
Not provided
aecom.com Logo
AECOM
Expiration Date
Until further notice
Principal, Revenue Marketing (International)
Save Icon
Lead international revenue marketing at Immuta, shaping go-to-market strategy across global B2B SaaS markets. Drive integrated campaigns, AI-powered marketing, and pipeline growth from London.
Salary Icon
Salary
138000.00 - 161000.00 GBP / Year
immuta.com Logo
Immuta
Expiration Date
Until further notice
Principal Mechanical Engineer - Water
Save Icon
Lead mechanical design on major UK water and wastewater projects with Egis in London, Bristol or Manchester. Hybrid working, AMP8 involvement and fast career progression for a Chartered Engineer with 7-10+ years' experience.
Salary Icon
Salary
Not provided
egis-group.com Logo
Egis Group
Expiration Date
Until further notice
Principal Process Engineer - Water Sector
Save Icon
Lead water and wastewater process design at Egis as Principal Process Engineer in London, Bristol or Manchester. Requires 8-10+ years' experience, chartership, and BioWin/SUMO modelling skills. Hybrid role with fast progression.
Salary Icon
Salary
Not provided
egis-group.com Logo
Egis Group
Expiration Date
Until further notice
Principal Wastewater Modeller
Save Icon
Lead wastewater modelling projects at Egis UK as Principal Wastewater Modeller in London, Bristol or Manchester (hybrid). Requires 8+ years Infoworks ICM experience, mentoring skills and a passion for sustainable drainage and innovation.
Salary Icon
Salary
Not provided
egis-group.com Logo
Egis Group
Expiration Date
Until further notice
Industry GTM Lead/ Industry Principal - Construction & Engineering
Save Icon
Lead GTM strategy for Construction & Engineering at IFS, a billion-dollar AI enterprise software leader. Drive near-term revenue, shape customer solutions, and champion industry innovation in London.
Salary Icon
Salary
Not provided
ifs.com Logo
IFS
Expiration Date
Until further notice
Senior Principal Platform Lead || AI & Agentic Systems
Save Icon
Senior Principal Platform Lead role in London to own and build a greenfield Internal Developer Platform from scratch. Requires 8+ years in platform engineering, deep Kubernetes, GitOps and IaC expertise, and hands-on IDP delivery at enterprise scale.
Salary Icon
Salary
Not provided
ifs.com Logo
IFS
Expiration Date
Until further notice
Principal Machine Learning Engineer
Save Icon
ASOS seeks a Principal Machine Learning Engineer in London to lead AI-powered fashion discovery within the Search & Discovery team. Requires extensive experience building large-scale ML systems, owning technical architecture, and a product-focused mindset.
Salary Icon
Salary
Not provided
ASOS
Expiration Date
Until further notice
Senior / Principal Power Systems Engineer
Save Icon
AECOM seeks a Senior/Principal Power Systems Engineer in London to lead grid compliance studies using PowerFactory, PSCAD and PSS/E. Requires UK Grid Code expertise and strong transmission planning skills.
Salary Icon
Salary
Not provided
aecom.com Logo
AECOM
Expiration Date
Until further notice
Principal Mechanical Engineer
Save Icon
Lead mechanical design on major UK water and wastewater projects with Egis in London, Bristol or Manchester. Hybrid working, rapid progression and a high-growth environment await experienced chartered engineers.
Salary Icon
Salary
Not provided
egis-group.com Logo
Egis Group
Expiration Date
Until further notice
Principal Flood Risk Consulant
Save Icon
Lead flood risk projects across the UK with Egis as a Principal Flood Risk Consultant. Requires 7+ years' experience, chartered status, and expertise in FRAs, hydraulic modelling, and SuDS. London-based growth role.
Salary Icon
Salary
Not provided
egis-group.com Logo
Egis Group
Expiration Date
Until further notice
Principal Network Modeller
Save Icon
Lead Infoworks ICM wastewater modelling at Egis UK in London, Bristol or Manchester (hybrid). Mentor colleagues, champion SuDS and sustainable drainage, and deliver innovative hydraulic modelling projects UK-wide.
Salary Icon
Salary
Not provided
egis-group.com Logo
Egis Group
Expiration Date
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.