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Principal Engineer Jobs

1628 Job Offers

Principal Software Engineer
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Lead a major digital transformation as a Principal Software Engineer. This initial 6-month contract outside IR35 requires expertise in TypeScript (Node/React), AWS, and event-driven MACH architecture. You will re-architect platforms to cloud-native microservices, providing technical vision and go...
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United Kingdom
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550.00 - 650.00 GBP / Hour
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Morson Talent
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Principal Electrical Engineer
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Lead electrical engineering for a global low-carbon energy leader at our Capenhurst site. You will manage a team delivering complex design solutions for major projects, ensuring safety and regulatory compliance. This role requires a Chartered Engineer with 10+ years' experience in regulated indus...
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United Kingdom , Capenhurst
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Salary
83175.00 - 92416.00 GBP / Year
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Morson Talent
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Principal Systems Safety Engineer
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Lead System Safety Engineering for advanced avionics in Phoenix. Develop safety strategies, conduct FHA, FMEA, and fault tree analyses per ARP4754A/4761. Ensure certification compliance and collaborate with teams to uphold the highest safety standards for integrated cockpit systems.
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United States , Phoenix
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Not provided
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Real Time Consulting
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Senior Principal Software Engineer - Linux OS Engineering
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Lead the future of Linux OS engineering on Arm-based platforms as a Senior Principal Software Engineer. This Austin-based role requires 8+ years of expertise in Linux kernel, device drivers, and system optimization using C/C++. Drive platform strategy, engage with the open-source community, and e...
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United States , Austin
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Salary
178500.00 - 269500.00 USD / Year
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Dell
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Principal Process Automation Engineer
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Lead innovative automation projects in mining and energy sectors from Houston, Denver, or Calgary. This senior role requires expertise in PLC programming and full project lifecycle management, from concept to commissioning. Drive operational efficiency and safety using cutting-edge digital soluti...
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United States , Houston; Denver; Calgary
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Not provided
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Airswift Sweden
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Principal Engineer: Automation - DeltaV
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Lead automation initiatives for a GMP Drug Substance Plant as a Principal Engineer specializing in DeltaV DCS. Provide technical leadership, deliver robust systems for new capital projects, and ensure operational excellence. This role requires extensive manufacturing automation experience and off...
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United States , Holly Springs
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174409.00 - 202181.00 USD / Year
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Amgen
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Principal PLC/Automation Engineer
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Lead the automation architecture for a new greenfield water treatment project in Sweden. Design PLC control systems, integrate energy-efficient solutions like solar power, and ensure sustainable performance. Collaborate cross-functionally, leveraging expertise in PLC programming, industrial netwo...
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Sweden
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Not provided
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Sigma Software Group
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Principal AI Engineer (Autonomous Agent)
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Lead the development of autonomous AI agents as a Principal AI Engineer. Design and implement scalable agent workflows using Python, LangChain, and LLMs. Build secure, high-impact solutions in a centralized GenAI team. Enjoy comprehensive benefits from Day 1 in a US-based role.
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United States
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179000.00 - 199000.00 USD / Year
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PointClickCare
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Principal AI Engineer (Autonomous Agent)
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Lead the design and implementation of advanced autonomous agent solutions in Mississauga. Utilize your expertise in Python, LLM workflows, and frameworks like LangChain to build reasoning and action coordination systems. This role offers comprehensive benefits from Day 1, including retirement mat...
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Canada , Mississauga
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169000.00 - 188000.00 CAD / Year
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PointClickCare
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Principal AI Platform Engineer
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Lead the development of our core AI infrastructure as a Principal AI Platform Engineer. You will design and maintain scalable platforms using Kubernetes, vector databases, and observability tools like OpenTelemetry. Your work will enable seamless integration of GenAI insights into agent workflows...
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United States
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179000.00 - 199000.00 USD / Year
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PointClickCare
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Principal AI Platform Engineer
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Lead the development of a cutting-edge AI platform in Mississauga. Design and maintain core GenAI infrastructure, including vector databases and model gateways. Expertise in Kubernetes, observability (OpenTelemetry), and AI security is essential. Enjoy a competitive bonus and benefits package.
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Canada , Mississauga
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169000.00 - 188000.00 CAD / Year
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PointClickCare
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Principal Software Engineer
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Join PointClickCare as a Principal Software Engineer in Mississauga. Develop scalable healthcare solutions using Java, Spring Boot, and Azure cloud services. Champion TDD and CI/CD in a culture that values innovation and offers exceptional benefits from day one.
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Canada , Mississauga
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156000.00 - 174000.00 CAD / Year
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PointClickCare
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Principal Engineer, Mapping and Localization
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Lead the development of cutting-edge localization and HD mapping systems for L4 autonomous vehicles in Santa Clara. As a Principal Engineer, you will design robust sensor fusion algorithms using Modern C++ and probabilistic robotics to solve complex real-world challenges. This role offers a compe...
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United States , Santa Clara
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200000.00 - 240000.00 USD / Year
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PlusAI
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Principal Full Stack Software Engineer
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Lead technical direction as a Principal Full Stack Engineer at a Berkeley startup revolutionizing circuit board design. Architect and implement critical systems using TypeScript/React and Python, from user management to core design tools. Drive consensus on solutions, mentor the team, and own com...
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United States , Berkeley
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150000.00 - 250000.00 USD / Year
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Helpcare AI
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Senior/ Principal Civil Design Engineer
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Seeking a Senior/Principal Civil Design Engineer for a hybrid role across multiple UK offices. You will deliver high-quality engineering design for water and sewage treatment projects, ensuring cost-effective and safe solutions. The role requires a relevant HND/degree and extensive civil engineer...
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United Kingdom , Derby; Rickmansworth; Bristol; Falmer; Coleshill; Peterborough
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Morson Talent
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Principal Software Engineer
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Lead the architecture of Microsoft's AI Web Data Platform, powering Bing Search and AI Grounding at an internet scale. This Principal Software Engineer role requires expertise in large-scale distributed systems (Spark, Kafka) and AI/ML to process billions of documents daily. Bring your technical ...
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United States , Redmond
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163000.00 - 296400.00 USD / Year
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Microsoft Corporation
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Principal Engineer - Civil
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Lead complex, high-risk civil engineering projects from our Brisbane office. This pivotal role requires a Chartered CPEng with 15+ years' experience and strong leadership skills. You will provide technical expertise while mentoring a team, supported by a competitive package and flexible work envi...
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Australia , Brisbane
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ADG Engineers (Aust) Pty Ltd
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Principal Engineer - Mechanical Design
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Lead mechanical design for water treatment projects as a Principal Engineer in Derby. This hybrid role requires chartered status, line management experience, and expertise in cost-effective plant layout. Enjoy a competitive package including car allowance, private health insurance, and a flexible...
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United Kingdom , Derby
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MWHTreatment
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Principal Software Engineer
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Lead the development of innovative AI-driven healthcare solutions in Boston. This Principal Software Engineer role requires 8+ years of experience, with deep expertise in Node.js, TypeScript, React, and AWS. Design scalable systems, mentor engineers, and enjoy comprehensive benefits including med...
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United States , Boston
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Robert Half
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Python Software Engineer with LLM (Principal)
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Join a new internal startup as a Principal Python Engineer with LLM expertise. Design and build an intelligent AI platform to revolutionize developer experience for thousands. Integrate cutting-edge LLMs and AI agents into core workflows using Python. Enjoy a hybrid model from Kielce, Kraków, or ...
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Poland , Kielce; Kraków; Wrocław
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Salary
30000.00 - 37000.00 PLN / Month
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VirtusLab
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About the Principal Engineer role

Explore the pinnacle of technical leadership with Principal Engineer jobs. A Principal Engineer is a master-level technical expert and strategic leader within an engineering organization. This is not merely a senior role; it represents the apex of an individual contributor technical track, where influence, architectural vision, and deep expertise converge to shape the technological future of a company. Professionals in these roles are the go-to authorities for the most complex, high-impact challenges, setting technical standards and driving innovation across multiple teams or the entire organization.

The common responsibilities of a Principal Engineer are vast and critical to long-term success. Typically, they involve defining and driving the long-term technical strategy and architectural vision for major platforms or product suites. They are responsible for researching, prototyping, and selecting technologies that will scale to meet future business needs. A core part of their duties includes leading the design and implementation of complex, cross-functional systems, ensuring they are resilient, secure, and efficient. They serve as the ultimate escalation point for critical production issues, conducting deep-dive analysis and root cause investigations to resolve systemic problems. Furthermore, Principal Engineers have a significant mentorship and governance function, actively coaching senior and staff engineers, establishing best practices, and conducting rigorous code and design reviews to maintain exceptional quality across all engineering outputs. They are also key collaborators, working closely with engineering managers, product leaders, and enterprise architects to align technical execution with business objectives.

The typical skills and requirements for these high-level positions are extensive. A bachelor's or master's degree in computer science, engineering, or a related field is common, though equivalent demonstrable experience is often acceptable. Most roles require a minimum of 10+ years of progressive, hands-on software development or infrastructure engineering experience, with a significant portion spent in lead or architecture-focused positions. Essential technical skills include mastery of relevant programming languages and frameworks, profound knowledge of system design patterns and distributed architectures, and expertise in cloud platforms like AWS, Azure, or GCP. They must possess exceptional analytical and problem-solving abilities to deconstruct ambiguous, complex problems. Beyond technical prowess, superior soft skills are non-negotiable; this includes outstanding communication to articulate technical vision to both technical and non-technical stakeholders, proven leadership and influence without formal authority, and strategic business acumen. For those seeking to define technological frontiers and mentor the next generation of experts, Principal Engineer jobs offer a challenging and highly rewarding career path at the forefront of innovation.