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Principal Engineer Jobs (Hybrid work)

544 Job Offers

Principal Structural Integrity Engineer
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Lead structural integrity projects for nuclear and defence sectors in Derby. As a technical expert, you'll conduct FE analysis, mentor junior engineers, and apply codes like ASME and BS7910. Enjoy hybrid work, career growth, and a role shaping critical safety assessments.
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United Kingdom , Derby
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Not provided
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ASSYSTEM
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Mechanical Principal Engineer
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Seeking a hands-on Mechanical Principal Engineer in San Diego with deep tooling and mold qualification expertise. You will independently solve complex technical problems using DOE and advanced statistical analysis. This role requires 5+ years of experience in IQ/OQ/PQ, tool design, and parameter ...
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United States , San Diego
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54.00 - 57.00 USD / Hour
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MillenniumSoft Inc
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Principal Mechanical Engineer
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Join a leading Medical Devices Company in San Diego as a Principal Mechanical Engineer. This 12+ month contract requires deep expertise in tool design, molding validation (IQ/OQ/PQ), and hands-on experience with parameters. You will independently solve complex technical problems and design compon...
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United States , San Diego
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54.00 - 58.00 USD / Hour
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MillenniumSoft Inc
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Principal Engineer I – Senior Customer Identity Access Management Developer
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Lead the technical implementation of our Strivacity CIAM platform as a Principal Engineer. You will enhance customer trust and digital onboarding by configuring secure user flows and enforcing security controls. This senior role requires deep expertise in CIAM standards like OAuth2/OIDC and exper...
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United States , Westerville/Columbus, OH
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Software Resources
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Principal / Lead Civil Engineer
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Lead Civil Engineer role within the @one Alliance, based in Peterborough with hybrid working. Provide technical leadership and design support for critical clean water and wastewater pipeline infrastructure projects. Requires significant experience in civil engineering, sewerage systems, and pipel...
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United Kingdom , Peterborough
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MWHTreatment
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Principal Software Engineer
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Lead the evolution of Microsoft's core cloud services as a Principal Software Engineer in Redmond. Design and deliver large-scale, high-performance systems for OneDrive and SharePoint infrastructure. Leverage 6+ years of coding expertise in C#, Java, or Python to improve efficiency and ensure bus...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Systems & Safety Engineer
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Join Starship Technologies in Helsinki as a Principal Systems & Safety Engineer. You will be a key technical voice, ensuring our delivery robots meet safety standards like ISO 26262 from concept to launch. Drive compliance, conduct risk assessments, and shape system architecture. Work with a glob...
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Finland , Helsinki
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Starship Technologies
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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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Airswift Sweden
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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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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 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, CoreAI
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Lead high-performance AI runtime systems at Microsoft's CoreAI team in Redmond. Optimize large-scale LLM inferencing with deep C++ and distributed systems expertise. Build scalable cloud services for OpenAI models, focusing on latency and reliability. Requires 6+ years in systems programming and ...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Security Engineer
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Join Ethos as a Principal Security Engineer in Bangalore. You will architect security frameworks, deploy controls, and automate processes in AWS. This senior role requires 10+ years of InfoSec expertise in threat modeling, penetration testing, and SIEM solutions. Lead vulnerability management and...
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India , Bangalore
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Ethos
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Principal Security Managed Services Engineer
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Lead the design and implementation of advanced security solutions for clients as a Principal Engineer at NTT DATA. This Seoul-based hybrid role requires extensive experience in security technologies, managed services, and scripting (Python/Perl/Ruby). You will ensure compliance with industry stan...
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Korea, Republic of , Seoul
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NTT DATA
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Associate Principal Engineer (C++ Developer)
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Join Aristocrat in Noida as an Associate Principal Engineer (C++ Developer). Leverage 8+ years of experience in C++, OOP, and Agile/Scrum to lead innovative gaming solutions. Develop high-performance code for Linux/Windows in a collaborative, mentoring role. Enjoy a robust benefits package and gl...
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India , Noida
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Aristocrat Gaming
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Principal Engineer - Combat Systems (External Communications)
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Lead maritime external communications systems engineering on the critical Dreadnought Submarine Programme. Apply your deep domain expertise across the full engineering lifecycle, from design to sea-going trials. This role offers a high-integrity environment in Frimley, valuing diversity and profe...
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United Kingdom , Frimley, Surrey
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57.00 GBP / Hour
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Outsource UK
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Principal GCP Engineer
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Lead high-level architectural discussions and own the DevSecOps process as a Principal GCP Engineer in London. Design ingenious GCP solutions, leveraging expertise in Kubernetes, BigQuery, and Vertex AI, while mentoring teams and engaging directly with clients. Enjoy private healthcare, generous ...
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United Kingdom , London
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PA Consulting
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Principal Mechanical Engineer
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Lead the design and analysis of critical HVAC and cooling systems for the AUKUS program as a Principal Mechanical Engineer. You will develop mechanical solutions, manage requirements, and ensure compliance throughout the engineering lifecycle. This key role in Barrow-in-Furness demands expertise ...
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United Kingdom , Barrow-in-Furness
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43.00 - 57.97 GBP / Hour
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Morson Talent
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Principal Mechanical Engineer
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Lead mechanical engineering projects in Preston, ensuring design integrity throughout the lifecycle. This senior role requires Chartered status (or progression), CAD expertise, and strong stakeholder leadership. Security Check (SC) clearance is essential. We offer a competitive salary and welcome...
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United Kingdom , Preston
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Not provided
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Morson Talent
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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.