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Principal Engineer Jobs

1765 Job Offers

Principal Radar Systems Development Engineer
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Lead radar systems engineering at CHAOS Industries in El Segundo. Design advanced signal processing algorithms, radar modes, and real-time implementations in Python, MATLAB, or C++. Requires deep radar expertise and a STEM degree.
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CHAOS Industries
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Principal Platform Engineer, Enablement
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Lead the technical vision for impact.com's QA platform as Principal Platform Engineer in Cape Town. Requires 10+ years in backend engineering, distributed systems, and hands-on LLM/agent tooling experience.
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Impact
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Principal Engineer, Field Applications
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Lead Automotive Field Applications Engineer for Vehicle Electrification in Germany. Requires 10+ years in semiconductor/automotive, strong BMS and high-voltage EV expertise, German and English C1, 50% travel.
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Analogdevices
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Principal Software Engineer 2 - OLTP
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Snowflake seeks a Principal Software Engineer 2 in Menlo Park to architect next-gen OLTP systems across Postgres and Unistore. Requires 15+ years in databases, distributed systems, and cloud infrastructure. Shape transactional architecture for AI-native workloads.
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Snowflake
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Principal Engineer, Mixed-Signal Design Engineering
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Lead architect role for clock generation and distribution in advanced mixed-signal ICs at Analog Devices Ireland. Requires PhD, 5-10 years analog design experience, PLL and SerDes expertise.
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Ireland, Ireland
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Analogdevices
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Principal Engineer, Component Engineering
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Lead component engineering strategy for Energy systems at Analog Devices in Ireland. Requires 10+ years in component or hardware engineering and a relevant degree. Own component selection, qualification, and lifecycle risk management.
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Analogdevices
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Senior Principal Engineer, Silicon Device & Key Product Enablement
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Lead silicon device innovation at Analog Devices as Senior Principal Engineer. Requires 15+ years in semiconductor device physics and MS/PhD. Drive product enablement and fab transfers in the US.
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Analogdevices
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Principal Full Stack Engineer
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Join Fidelity as a Principal Full Stack Engineer in Durham, building scalable APIs and microservices for customer-facing platforms. Requires 8+ years Java/Spring experience and strong leadership in agile environments.
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Fidelity Investments
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Principal Data Engineer
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Lead cloud-native authorization transformation at Fidelity as Principal Data Engineer in Westlake. Requires 10+ years full-stack experience, 7+ years complex architecture, and expertise in RBAC, OAuth 2.0, and distributed databases.
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Fidelity Investments
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Principal Software Engineer (AI Engineering)
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Join Fidelity Architecture and Engineering in Dublin as a Principal Software Engineer driving cutting-edge AI capabilities. Requires hands-on Python, Go, JavaScript or Rust experience plus AI tooling like GitHub Copilot.
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Fidelity Investments
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Principal QA Engineer
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Lead QA automation for distributed microservices at Fidelity in Westlake, TX. Build CI/CD pipelines and scalable Selenium, Cucumber, Java, and Jenkins frameworks. Drive enterprise test strategy. No immigration sponsorship.
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Fidelity Investments
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Principal PCB Design Engineer
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FormFactor seeks a Principal PCB Design Engineer in Gyeonggi-Do, Korea. Requires Cadence Allegro expertise, high-speed digital and DDR memory design skills, plus HDI experience. Join a leading semiconductor test technology innovator.
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South Korea, Gyeonggi-Do
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Formfactor
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Principal Manufacturing Process Engineer
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FormFactor seeks a Principal Manufacturing Process Engineer in Farmers Branch, TX to optimize photolithography and etch processes in high-volume semiconductor manufacturing. Requires 5+ years experience with SPC, DOE, and CAPA expertise.
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Formfactor
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Senior Principal Software Engineer
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Senior Principal Software Engineer role focused on R&D of cutting-edge AI capabilities. Requires Golang/Python proficiency, LLM and agentic development experience, and ability to obtain TS clearance. US citizens only.
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Clarity Innovations
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Principal Engineer Integration Engineering (Silicon Photonics)
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Lead silicon photonics integration at GlobalFoundries Fab 8, driving SiPh process development across RF, FinFET, FDSOI and eNVM technologies. Requires 4+ years industry experience, strong project management and team leadership skills.
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Globalfoundries
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Principal Process Engineer - Etch
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Lead etch process engineering at GlobalFoundries Fab 9 in Essex, VT. Requires BS in engineering, 4-5+ years semiconductor experience, SPC/DOE expertise. Drive yield, cost, and process improvements in 200mm cleanroom.
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Globalfoundries
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Sr Principal Engineer - Test Development and Automation
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Lead ATE test automation for cutting-edge semiconductor devices in Automotive and Industrial markets. Requires 20+ yrs experience, C++/C#/Python/Java skills, and hands-on agentic AI expertise. Based in Richardson, USA.
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Globalfoundries
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Principal Control Systems Engineer (f/m/d)
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Lead control systems architecture for laser-driven fusion at Focused Energy in Darmstadt. Requires 10+ years in control/embedded systems, PLC/FPGA expertise, and domain knowledge. Join a $240M-funded clean energy pioneer.
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Focused
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Principal Machine Learning Engineer (Memory & Context)
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Lead the future of AI at Zillow as a Principal ML Engineer on the Agentic AI team. Build production LLM agents, drive memory and context engineering, and shape architecture for personalized home search. Remote-USA.
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United States, Remote-USA
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Zillow
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Principal Data Engineer
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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.
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Funding Circle
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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.