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Principal Jobs (On-site work)

1189 Job Offers

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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Principal Technical Product Manager- Billing Platform
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Lead the development of a cutting-edge Billing Platform as a Principal Technical Product Manager. This role demands 10+ years of product management experience in Agile environments, combined with deep technical architecture skills. Drive product vision and strategy from our hubs in Overland Park,...
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United States, Overland Park, Atlanta, Frisco, Bellevue
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139700.00 - 252000.00 USD / Year
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Principal Operations Engineer
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Principal Operations Engineer sought in Dubai to lead offshore installation projects. This specialist role requires a Bachelor's in Engineering, 5-7 years of offshore industry experience, and 2+ years of supervisory expertise. You will solve complex operational problems, supervise field engineers...
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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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Principal Engineer, PMO MPT
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Principal Engineer, PMO MPT in Marsa, Malta. Lead cross-functional cost optimization projects in a regulated medical/pharma environment. Leverage should-cost analysis and value engineering to drive insourcing and alternate sourcing. Requires 5+ years in engineering (Mechanical, Plastics, Manufact...
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36000.00 EUR / Year
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Principal Software Consultant - AI/ML Engineer
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Lead AI/ML initiatives as a Principal Software Consultant in Lahore, Karachi, or Islamabad. This hands-on technical leadership role requires 7+ years of experience building production-grade ML and LLM systems, including RAG pipelines and agentic AI. You will architect scalable solutions, mentor e...
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Pakistan, Lahore, Karachi, Islamabad
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Staff / Principal Software Engineer, Product
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Staff / Principal Software Engineer sought to build the future of AI software creation at Lovable in Stockholm. You'll own full-stack features end-to-end, scaling systems for millions of users using React/TypeScript, Golang, or Rust. Requires 10+ years of senior engineering experience, strong pro...
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Staff / Principal Software Engineer, Platform
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Staff / Principal Platform Engineer to lead the infrastructure powering Lovable’s AI product in Stockholm. You’ll design high-throughput sandbox schedulers, own observability stacks, and harden production systems. Requires 10+ years in platform or developer experience engineering, deep Kubernetes...
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Software Engineer, Principal
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Principal Software Engineer needed in Bedford, MA to support C3BM’s critical Battle Network integration for the USAF and USSF. This role requires a Top Secret/SCI clearance, 20+ years of experience, and expertise in full SDLC, software V&V, and DoD systems. You will lead Agile teams, perform SQA,...
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United States, Bedford
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123639.00 - 145000.00 USD / Year
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Principal Quantum Design Verification Engineer
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Join Microsoft Quantum in Redmond as a Principal Quantum Design Verification Engineer to drive scalable, fault-tolerant quantum computing. You will own verification environments for complex SoC and IP designs, leveraging UVM, SystemVerilog, and AMS models. Requires a Doctorate or equivalent exper...
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139900.00 - 274800.00 USD / Year
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Senior and Principal Applied Scientists
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Senior and Principal Applied Scientists are sought by Core AI in Redmond, WA to pioneer observability for AI agents at scale. You will develop scientific evaluation frameworks for multi-agent systems, focusing on quality, safety, reliability, and cost. This role requires a PhD or Master’s in Comp...
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119800.00 USD / Year
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Principal Data Scientist
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Principal Data Scientist role in the West Midlands, UK. Lead advanced analytics, machine learning, and AI solution delivery across client programmes. Requires deep expertise in statistics, model validation, and setting coding standards. Drive responsible AI practices, mentor teams, and influence ...
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United Kingdom, West Midlands
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Principal Cost Controls Specialist
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Principal Cost Controls Specialist role in Houston, TX, for future mega-projects in Oil & Gas and Offshore Construction. Requires expertise in EVM, progress measurement, and cost management with 10+ years of experience. Lead project controls on complex EPC projects, implementing AWP and WBS proce...
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Principal Product Manager
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Principal Product Manager role in Redmond, WA, leading SMB onboarding and support for Microsoft Advertising. Drive long-term vision, resolve customer pain points, and accelerate advertiser value. Requires 8+ years in product management or software development, with digital advertising experience ...
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139900.00 - 274800.00 USD / Year
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Building Regulations Principal Designer
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A unique opportunity for a Chartered Architect to transition into a **Building Regulations Principal Designer** role in Sevenoaks. Leverage your knowledge of the **Building Safety Act** to secure Gateway approvals on high-profile London projects. This role offers clear career progression, support...
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60000.00 - 70000.00 GBP / Year
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Principal Eng, Software
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Principal Embedded Software Engineer sought for Baxter’s R&D in Bengaluru. Lead global testing strategy for life-saving medical devices, blending manual/automated testing with C++, Qt/QML. Requires expertise in SDLC, Agile/SAFe, and risk management. Enjoy benefits like professional development, P...
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Principal Security Researcher (Xpanse)
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Join Palo Alto Networks' elite Xpanse team as a Principal Security Researcher. Drive groundbreaking vulnerability research, engineer exploits, and build high-impact tooling in Santa Clara. Requires 5+ years in offensive security, Python proficiency, and deep OS/network knowledge. Enjoy RSUs, bonu...
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162700.00 - 263175.00 USD / Year
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Senior Principal Engineer Software (Prisma Access)
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Senior Principal Engineer Software (Prisma Access) sought to lead the Explicit Proxy team in Santa Clara, CA. This role combines hands-on L4-L7 proxy expertise with managerial excellence, driving innovation in cloud-delivered SASE and network security. You will guide teams building scalable, mult...
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147000.00 - 237500.00 USD / Year
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Principal Software Engineer (Architect)
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Principal Software Engineer (Architect) role in Redmond, WA, driving large-scale innovation for Microsoft Entra ID. You will architect cloud identity solutions, lead high-quality coding in C#, Java, or Python, and champion AI-first engineering. This position requires a Bachelor’s in CS with 8+ ye...
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163000.00 - 296400.00 USD / Year
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Senior CDM Principal Designer
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Senior CDM Principal Designer role in Birmingham with a leading multi-disciplinary consultancy. You will lead project delivery and drive business development across residential, commercial, and healthcare sectors. Requires 4+ years’ CDM experience, APS/IOSH membership, and a track record in winni...
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Salary
60000.00 - 70000.00 GBP / Year
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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.