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Principal Engineer United States Jobs

820 Job Offers

Principal Opto-Mechanical Engineer
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Principal Opto-Mechanical Engineer sought to lead design and delivery of advanced opto-mechanical systems for next-gen e-beam technology in San Jose. Requires MSc/PhD and 10+ years in optics, lasers, or related fields. Drive multi-year technical roadmaps, own complex module development, and ensur...
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177000.00 - 265500.00 USD / Year
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ASML
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Principal Software Engineer
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Join Microsoft’s Industry Solutions Engineering team as a Principal Software Engineer. Collaborate directly with customers to build cloud-based solutions using C, C++, C#, Java, JavaScript, or Python. This role offers mentorship, cross-product leadership, and up to 25% travel across multiple U.S....
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United States, Multiple Locations
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142800.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Systems Engineer
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Principal Systems Engineer sought in Round Lake, IL to lead medical device development at Baxter. Drive design inputs, digital interface requirements, and cross-functional teams. Requires BS+5 years or MS+3 years, systems engineering expertise, and problem-solving skills (DFSS/DMAIC/CAPA). Benefi...
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112000.00 - 154000.00 USD / Year
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Baxter
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Senior Principal Engineer (Automation)
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Senior Principal Engineer (Automation) sought by Baxter in Marion, US, to drive manufacturing excellence. You will lead control system improvements, troubleshoot PLCs (Allen-Bradley), robotics (Fanuc, Yaskawa), and vision systems (Cognex, Keyence) to boost throughput and reliability. Requires 8+ ...
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128000.00 - 176000.00 USD / Year
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Baxter
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Principal Engineer
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Principal Engineer role in Marion, US, driving automation and control system projects in pharmaceutical manufacturing. Lead capital initiatives up to $10M, optimize IV bag filling lines, and manage FDA-regulated changes. Requires a Bachelor's in Engineering and 5+ years of experience. Benefits in...
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143333.00 - 168000.00 USD / Year
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Baxter
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Principal Software Engineer
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Principal Software Engineer role in Redmond, WA, driving Cloud + AI + Agentic architecture for Microsoft’s Customer Success and Consulting. Lead technical roadmap, establish architectural guardrails, and influence cross-team engineering decisions. Requires 6+ years coding in Python, C#, or Java w...
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142800.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Principal Software Engineer sought by Baxter in Milwaukee to architect and enhance life-saving cardiology software. Requires 5+ years in C#/C++ with .NET, relational databases, and Agile practices. Ideal candidates have medical device experience (IEC 62304). Benefits include immediate medical/den...
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120000.00 - 165000.00 USD / Year
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Baxter
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Principal Software Engineer, Web
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Join Walmart’s Emerging-Tech group as a Principal Software Engineer, Web in Bentonville, AR. Lead the creation of next-gen retail experiences using React, TypeScript, and Node.js. You will architect complex systems, mentor engineers, and drive best practices. Enjoy top benefits including 401(k) m...
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110000.00 - 220000.00 USD / Year
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Walmart
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Principal, Software Engineer
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Lead backend engineering for Walmart’s Edge Direct IoT platform, managing a fleet of in-store access points. Drive architecture decisions, migrate services to WCNP, and coordinate releases using Go, MQTT, HashiCorp Vault, and Postgres. Requires 5+ years in software engineering with production Gol...
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Location
United States, Sunnyvale, Bentonville
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Salary
143000.00 - 286000.00 USD / Year
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Walmart
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Principal Software Engineer, Foundry Agents - CoreAI
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Join Microsoft’s CoreAI team as a Principal Software Engineer to build cloud-native systems for the Foundry Agents platform. You will architect secure, enterprise-scale agent deployment, fine-tuning, and observability services. Requires 6+ years in C++, Python, or Java, with expertise in distribu...
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139900.00 - 304200.00 USD / Year
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Microsoft Corporation
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Principal Systems Safety Engineer
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Principal Systems Safety Engineer sought in Phoenix, AZ to lead safety strategies for advanced integrated avionics platforms. You will conduct hazard analyses, fault tree analysis, and FMEA, ensuring compliance with SAE/ARP 4761 and 4754A. Requires a Bachelor's in Engineering and 6+ years in comm...
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Real Time Consulting
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Principal, Software Engineer, Back End
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Walmart seeks a Principal Back End Software Engineer to lead the Emerging-Tech group in Bentonville, AR. You will architect and build next-gen retail experiences, leveraging Java, distributed systems, and containerization (Docker/K8s). This role requires 12+ years of experience, expertise in scal...
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110000.00 - 220000.00 USD / Year
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Walmart
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Principal Machine Learning Engineer, Agentic AI
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We are seeking a Principal Machine Learning Engineer to pioneer Agentic AI solutions in the United States. You will design and deploy multi-agent systems using LangChain/LangGraph, leveraging advanced GenAI models for autonomous, context-aware interactions. Ideal candidates possess 7+ years build...
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Zillow
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Principal Software Engineer
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Microsoft Security seeks a Principal Software Engineer in Redmond, WA to lead AI-first, high-scale service architecture. You will drive infrastructure security, mentor teams, and innovate on cloud solutions using C#, Python, or Java. Requires 6+ years experience, a CS degree, and expertise in LLM...
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139900.00 - 304200.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer – Developer Experience
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Principal Software Engineer – Developer Experience role in Austin, TX, driving developer productivity and insights at General Motors. You will define technical strategy for CI/CD, golden paths, and AI-powered engineering workflows. Requires 10+ years in software development, expertise in distribu...
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General Motors
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Principal Software Engineer
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Principal Software Engineer role at Walmart Global Tech, shaping systems for 240M+ customers. Lead design and launch of high-impact distributed systems using React, Node.js, Java, and cloud services. Requires 10+ years experience in service-oriented architecture and end-to-end ownership. Based in...
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Location
United States, Sunnyvale, CA, Bentonville, AR
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Salary
143000.00 - 286000.00 USD / Year
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Walmart
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Principal Customer Experience Engineer
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Principal Customer Experience Engineer – Drive security transformation at Microsoft. Leverage 10+ years of technical pre-sales or solution architecture expertise to serve as a strategic advisor for top-tier customers across the US. Collaborate with C-suite executives, field sellers, and engineeri...
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Location
United States, Multiple Locations
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Salary
139900.00 - 304200.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Principal Software Engineer (NGFW Platform) role at Palo Alto Networks in Santa Clara, CA. You will design platform diags and software for Next-Generation Firewalls, leveraging 10+ years of experience in Linux Kernel, DPDK, and hardware bring-up. Strong C and Python skills required to innovate fe...
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147000.00 - 237500.00 USD / Year
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Palo Alto Networks
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Principal Software Engineer
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Principal Software Engineer role on Microsoft’s Copilot Studio Knowledge team in Redmond, WA. You’ll build cutting-edge Generative AI features, improve service scalability, and define architecture using C#, Python, or Java. Requires 6+ years of engineering experience, AI tool proficiency, and ent...
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Principal Software Engineer sought to define the long-term technical vision for Microsoft’s geospatial and location services platform. You will lead architectural decisions, drive cross-team alignment, and ensure mission-critical reliability at the intersection of AI, Search, and Geospatial Intel...
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142800.00 - 274800.00 USD / Year
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Microsoft Corporation
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Until further notice

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.