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Principal Jobs (On-site work)

1181 Job Offers

Principal Data Scientist
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Principal Data Scientist sought to lead advanced forecasting model development at Amgen in Hyderabad. This role leverages Bayesian, causal, and machine learning techniques to drive strategic decisions across Commercial, Supply Chain, and Finance. Requires 12+ years of enterprise data science expe...
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Principal Ecologist
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Lead and inspire a team of five Ecologists as Principal Ecologist, based between Cambridge and St Neots. This senior role demands a CIEEM member with 5–8 years’ consultancy experience, a protected species licence, and expertise in PEA, BNG, and EcIA. You will win and deliver complex projects, men...
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United Kingdom, Saint Neots
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Sr Principal Engineer - Software Quality
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Sr Principal Engineer - Software Quality role in Gloucester, UK, leading compliance for life-saving medical devices. Requires 10+ years in software quality engineering with expertise in ISO 13485, EU MDR, and IEC 62304. Drive Agile integration with regulatory frameworks, managing design controls ...
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Principal Geoscientist
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Eldorado Gold Saskatchewan seeks a Principal Geoscientist – Regional Projects for its Saskatoon office. You will lead regional exploration strategy and target generation for the world-class McIlvenna Bay copper-zinc-gold-silver project. Ideal candidates hold a MSc/PhD in Economic Geology, 15+ yea...
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140000.00 - 165000.00 CAD / Year
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Principal Python Engineer
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Principal Python Engineer sought by Europe’s largest equities exchange for a senior individual contributor role in London. You will lead complex data pipeline and event streaming projects, mentor engineers globally, and drive new product features. Requires expert Python, advanced SQL, Kafka, Airf...
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135000.00 - 145000.00 GBP / Year
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Principal Edge AI Engineer
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Principal Edge AI Engineer sought to lead AI/ML telemetry pipeline development across GPU-enabled embedded systems in Newark, US. Requires 10+ years in AI/ML engineering with deep C++ expertise for firmware and low-level integration, plus proficiency in Core ML, TensorFlow Lite, and Python. Drive...
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Principal Database Administrator
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Principal Database Administrator needed in State College, PA or Dulles, VA. Leverage your 8+ years of DBA experience and active TS/SCI clearance with CI Poly to manage Oracle Exadata and OIA databases. You will design secure, high-performance RDBMS solutions, automate tasks, and troubleshoot comp...
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Principal Software Engineer
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Principal Software Engineer sought for onsite factory support in Tucson, AZ. Requires 8+ years’ experience (or 5 years with advanced STEM degree), expertise in C# and C++ within Microsoft Visual Studio, and an active US Secret clearance. Lead multidisciplinary teams, develop object-oriented appli...
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95.00 - 120.00 USD / Hour
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Principal, AI Cloud Infrastructure Commercial Sourcing
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Meta seeks a Principal for AI Cloud Infrastructure Commercial Sourcing to lead high-stakes negotiations for its massive AI compute footprint. This senior role requires 10+ years structuring complex cloud agreements and managing C-suite partnerships with top providers. You will own the commercial ...
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179000.00 - 249000.00 USD / Year
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C3BM Principal Acquisition Analyst
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Banner Defense seeks a C3BM Principal Acquisition Analyst in Colorado Springs to lead acquisition strategy and scheduling for the C2BMC program. You will develop and maintain the Integrated Master Schedule (IMS), conduct critical path analysis, and support Missile Defense System integration. Requ...
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115000.00 - 120000.00 USD / Year
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Principal Scientist - Purification Chemist
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Principal Scientist – Purification Chemist opportunity in Rahway, NJ, with Parexel FSP. Apply chromatography, organic chemistry, and biochemistry expertise to purify APIs and intermediates in an R&D lab. Requires semi-preparative purification experience and strong problem-solving skills. Enjoy fu...
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Principal DevOps Engineer
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Principal DevOps Engineer sought to architect and scale a massive multi-region GCP environment for Palo Alto Networks' Cortex SecOps platform. This high-impact role demands 10+ years of DevOps/SRE expertise, deep Kubernetes (GKE) mastery, and Terraform proficiency. You will set engineering standa...
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147000.00 - 237500.00 USD / Year
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Principal Researcher
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Principal Security Researcher role in Bengaluru, India, focused on cloud security and compliance. You will lead groundbreaking research, develop detection rules for AWS, GCP, and Azure, and protect against emerging threats. Requires 8+ years in threat research, Linux expertise, and Python skills....
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Principal Software Engineer - Ad Tech & Distributed Systems - FreeWheel
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Principal Software Engineer sought to lead reliability and performance for FreeWheel’s ad tech platforms in Chicago. You will design and troubleshoot large-scale distributed systems on AWS, driving automation and incident response. Requires 10+ years of software engineering experience, expert-lev...
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152828.79 - 229243.19 USD / Year
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Principal Mechanical Engineer
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Principal Mechanical Engineer role in Skaneateles Falls, NY, leading medical device design from concept to commercialization. Requires Creo CAD, IP-rated enclosure design, ANSYS simulation, and DFM expertise. Drive innovation in a regulated environment with full ownership of mechanical systems. B...
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United States, Skaneateles Falls
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112000.00 - 154000.00 USD / Year
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Senior Principal Controls Engineer
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Senior Principal Controls Engineer sought in Marion, US, to drive life-saving medical innovations at Baxter. Requires 8+ years of Rockwell PLC and servo control experience, plus expertise in Allen-Bradley, robotics, and electrical schematics. Lead continuous improvement, validation, and regulator...
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128000.00 - 176000.00 USD / Year
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Principal Product Manager
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Principal Product Manager role at Coursera shaping AI-powered assessment and skills validation products. Drive product strategy, own roadmap, and deliver measurable impact for millions of learners. Requires 8+ years PM experience, expertise in LLM-integrated products, and strong evaluation framew...
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180800.00 - 273500.00 USD / Year
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Principal Software Architect
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Foundation Software seeks a Principal Software Architect to lead architecture strategy and mentor senior engineers in Strongsville, OH. This hands-on role requires 12+ years of software engineering experience and 5+ years in architecture, with deep expertise in cloud-native design, APIs, and mode...
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Principal Software Engineer
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Principal Software Engineer needed in Bangalore to build a high-throughput cloud data platform for Asset Management’s Equity Trading. Requires 9+ years’ experience, Java, Spring, REST, Angular JS, and Agile SCRUM expertise. Drive design, development, and technical direction for scalable, low-late...
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Senior Principal Controls Engineer
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Senior Principal Controls Engineer sought in Marion, NC, to lead a controls engineering team and drive automation. Requires 8+ years of Rockwell PLC experience, servo control systems, and hands-on electrical/mechanical skills. Key benefits include medical/dental from day one, an Employee Stock Pu...
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128000.00 - 176000.00 USD / 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.