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3661 Job Offers

Principal Product Data Scientist
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Lead product data science strategy in London, driving AI and experimentation to shape customer experiences. Expert-level Python, SQL, and machine learning skills required. Act as a strategic advisor to senior leadership, championing causal inference and next-gen tooling. Ideal for candidates with...
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United Kingdom , London
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Not provided
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Tripadvisor
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Principal Product Data Scientist
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Tripadvisor seeks a Principal Product Data Scientist in London to lead data science strategy, driving product innovation with advanced analytics and AI. You’ll leverage expert Python, SQL, and machine learning skills to influence senior leadership and embed data-driven decisions. This role offers...
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United Kingdom , London
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Not provided
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Tripadvisor
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Principal Device Drivers Software Engineer
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Principal Device Drivers Software Engineer sought to develop low-level embedded software for market-leading critical communication radios in Cambridge, UK. You will design, implement, and test device drivers for Embedded Linux, FreeRTOS, and ARM BSPs. Requires expert C skills, real-time debugging...
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United Kingdom , Cambridge
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75000.00 GBP / Year
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rmg digital
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Principal Software Engineer - CoreAI
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Principal Software Engineer - CoreAI at Microsoft: Drive AI innovation in Redmond, WA. Architect large-scale data pipelines on Azure, lead cross-team analytics projects, and shape product strategy. Requires 6+ years coding in Python/C++/C# and deep data governance expertise. Join us to accelerate...
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United States , Redmond
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142800.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Technical Program Manager - Forward Deployed Engineering
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Lead complex technical programs as a Principal TPM on Microsoft's Forward Deployed Engineering team in London. Embed with strategic customers to co-engineer AI-powered, cloud-based solutions, driving measurable business outcomes with high autonomy. Requires cross-functional project management exp...
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United Kingdom , London
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91800.00 - 154700.00 GBP / Year
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Microsoft Corporation
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Principal Auditor - Cyber, Risk and Analysis Technology Audit
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Principal Auditor role at Capital One, focusing on Cyber, Risk, and Technology Audit. Ideal for experienced professionals with 4+ years in IT auditing, cybersecurity, or cloud controls. Lead audits of critical tech functions, cloud infrastructure, and application security across multiple US locat...
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Location
United States , McLean, Virginia; Charlotte, North Carolina; Richmond, Virginia; Plano, Texas; New York, New York
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Salary
119400.00 - 163500.00 USD / Year
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Capital One
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Principal Systems Engineer
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Principal Systems Engineer sought for the Global Combat Air Programme (GCAP) in Luton, UK. You will drive system requirements development, interface definition, and design integration using Matlab and Cameo. Ideal candidates bring aerospace/defence systems engineering experience and agile lifecyc...
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United Kingdom , Luton
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Not provided
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Morson Talent
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Principal Highways Engineer
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Principal Highways Engineer role in Stockport, UK. Seeking a Chartered or near-Chartered civil engineer with strong highways design experience using UK standards (DMRB, MCHW, NEC). Lead detailed design, mentor junior engineers, and coordinate multi-disciplinary delivery from concept to constructi...
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United Kingdom , Stockport
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Not provided
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Morson Talent
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Principal Engineer Systems Engineering Architecture
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Principal Systems Engineer sought for a leading defence client in Barrow-in-Furness, UK, to drive complex submarine projects. This role demands deep expertise in systems engineering architecture, technical leadership, and design authority for sub-systems. You will produce design specifications, l...
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United Kingdom , Barrow-in-Furness
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Salary
58.00 - 78.33 GBP / Hour
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Morson Talent
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Sr Principal Electrical Engineer
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Sr. Principal Electrical Engineer sought to lead innovative electrical design for Baxter’s medication delivery portfolio in Round Lake, IL. Requires a Bachelor’s in Electrical Engineering with 10+ years of experience in electromechanical hardware, embedded microcontrollers, and analog/digital des...
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United States , Round Lake
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128000.00 - 176000.00 USD / Year
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Baxter
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Principal Technical Program Manager - FDE
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Lead complex technical programs as a Principal TPM in Zürich, embedding with strategic customers to drive AI, cloud, and data solutions. You’ll own the customer journey end-to-end, using AI-assisted engineering and tools like VS Code and GitHub. Requires cross-functional program management experi...
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Switzerland , Zürich
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183800.00 - 309700.00 CHF / Year
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Microsoft Corporation
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Sr Principal Electrical Engineer
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Senior Principal Electrical Engineer sought to lead innovative electrical design for life-saving medication delivery and monitoring devices. This role demands 10+ years of experience in electromechanical hardware, embedded systems, and analog/digital circuit design. Based in Round Lake, IL, the p...
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United States , Round Lake
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128000.00 - 176000.00 USD / Year
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Baxter
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Principal Account Executive (Platform Sales)
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Supermetrics seeks a Principal Account Executive to drive high-value platform sales globally. This remote, U.S.-based role targets major Cloud, MarTech, and AdTech platforms, requiring 10+ years of enterprise SaaS experience and a deep ecosystem network. You will navigate complex, multi-quarter d...
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United States
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Not provided
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Supermetrics
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Principal Security Engineering Manager
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Lead production security at Microsoft as a Principal Security Engineering Manager in Redmond. Drive end-to-end risk programs, threat modeling, and incident response for critical cloud environments. Requires deep expertise in cyber security, SIEM, and identity management (authN/authZ, RBAC). Lead ...
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United States , Redmond
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Salary
142800.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Applied Scientist
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Join Microsoft AI as a Principal Applied Scientist in Redmond, WA, to build the next-generation data platform for Bing and LLM training. You will translate research into production, driving industry-wide impact with state-of-the-art modeling at internet scale. Requires a PhD/ Master’s in CS or re...
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United States , Redmond
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165600.00 - 296400.00 USD / Year
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Microsoft Corporation
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Principal Corporate Counsel
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Principal Corporate Counsel sought to join Microsoft’s US Public Sector Industries Team in Reston, VA. This role provides legal guidance on complex cloud computing, AI, and government transactions. Requires a Juris Doctor, active law license, and an active U.S. Government Secret Security Clearanc...
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United States , Reston
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Salary
132200.00 - 232800.00 USD / Year
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Microsoft Corporation
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Principal Business Strategy Manager
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Join Microsoft’s Cloud Supply Chain as a Principal Business Strategy Manager in Redmond, WA. Drive strategic planning and business insights for AI and cloud infrastructure, advising senior leadership on market trends. Requires a Master’s degree and 4+ years in strategy or consulting, with experti...
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United States , Redmond
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Salary
130900.00 - 251900.00 USD / Year
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Microsoft Corporation
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Principal Strategic Planning Program Manager - Data Center Leasing
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Lead strategic planning for Microsoft’s global data center leasing portfolio. Drive cross-functional governance, scenario analysis, and portfolio-level insights to optimize acquisition strategies. Requires 6+ years in program management, data analysis, or engineering, with expertise in cloud infr...
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United States , Redmond
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Salary
142800.00 - 274800.00 USD / Year
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Microsoft Corporation
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Senior Security Engineer and Principal Security Engineer (Multiple Positions)- Windows Security
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Join Microsoft’s Windows Security team as a Senior or Principal Security Engineer in Redmond, WA. Focus on offensive security, vulnerability research, and engineering mitigations for Windows OS used by billions. Requires a Master’s in CS or related field with 3+ years security experience. Perform...
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United States , Redmond
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Salary
119800.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Experience Designer
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Principal Experience Designer sought for a long-term contract in Fort Washington, PA. Lead the creation of refined, user-centered digital experiences for homebuyers, blending strategic design thinking with hands-on execution. Requires 7+ years in digital product design, advanced Figma skills, and...
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Location
United States , Fort Washington
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Salary
Not provided
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Robert Half
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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.