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Principal Engineer Ireland Jobs

17 Job Offers

Principal Digital Experience Engineer
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Ireland , Dublin
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Not provided
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Supermetrics
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Principal Web Engineer, Marketing
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Principal Web Engineer needed to own the end-to-end technical strategy for a high-impact B2B SaaS marketing website. You will drive architecture, experimentation, and AI strategy using Astro.js, TypeScript, and Sanity. This Dublin-based role demands 12+ years of experience, deep technical SEO kno...
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Ireland , Dublin
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Supermetrics
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Principal Software Engineer
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Join Fidelity's Asset Management Technology group in Galway as a Principal Software Engineer. Lead a new delivery team, designing and deploying AWS-based applications for Strategic Advisors. Utilize your 10+ years of Java, SpringBoot, and Angular expertise in an agile environment. Drive engineeri...
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Ireland , Galway
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Fidelity Investments
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Principal Software Engineer
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Join our team in Galway as a Principal Software Engineer, shaping the Contact Center platform for over 20M clients. We seek an expert in Java, JavaScript (React/Angular), and microservices with 8+ years' experience. Drive innovation in a full-stack, Agile environment, leveraging cloud (Azure/AWS)...
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Ireland , Galway
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Fidelity Investments
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Principal Software Engineer
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Lead a development squad as a hands-on Principal Software Engineer in Galway. Design and build micro-services and UIs using Java, SpringBoot, and Angular for a platform managing over $950B in assets. This role requires 10+ years' experience and offers the chance to shape critical investment manag...
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Ireland , Galway
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Fidelity Investments
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Principal Software Engineer
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Lead the strategic direction of a massive-scale log search platform at Rapid7 in Dublin. As a Principal Software Engineer, you'll design systems handling petabytes of data daily using Java and AWS. This high-impact role requires deep technical expertise and a drive to solve complex problems for a...
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Ireland , Dublin
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Rapid7
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Principal / Lead Engineer
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Lead the technical evolution of a sophisticated financial platform in Cork. This hybrid role requires deep .NET/C#, Angular, and Azure expertise to modernize legacy systems into scalable architectures. You'll mentor engineers and drive best practices within a collaborative, supportive culture off...
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Ireland , Cork
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Solas IT Recruitment
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Principal UI Engineer
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Lead the evolution of front-end platforms as a Principal UI Engineer in Dublin. This role requires deep React and TypeScript expertise to shape scalable UI architecture and champion best practices. You will embed AI-driven workflows into development, focusing on high-quality, performant applicati...
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Ireland , Dublin
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90000.00 - 110000.00 EUR / Year
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Solas IT Recruitment
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Principal Engineer - Physical Security Innovation
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Lead physical security innovation for Microsoft's global cloud infrastructure in Dublin. Design and implement cutting-edge security systems across a vast network of datacenters. Requires expertise in physical security engineering, threat modeling, and a relevant technical degree. Play a key role ...
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Ireland , Dublin
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Microsoft Corporation
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Principal Software Engineer
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Lead the development of Microsoft's critical security cloud platform as a Principal Software Engineer in Dublin. This role requires a Bachelor's in Computer Science, 6+ years of coding experience (C#, Java, Python, etc.), and strong technical leadership. You will design large-scale distributed se...
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Ireland , Dublin
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Microsoft Corporation
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Principal Software Engineer
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Lead the development of next-gen financial applications in Galway. This Principal Engineer role requires 8+ years' expertise in Java, Spring Boot, and Angular, with strong AWS and microservices knowledge. Drive technical excellence, mentor a high-performing team, and enjoy a competitive bonus. EU...
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Ireland , Galway
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90000.00 EUR / Year
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Nicoll Curtin
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Principal Software Engineer
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Join HPE's Private Cloud Engineering team in Galway as a Principal Software Engineer. Leverage your 10+ years of experience in Java, Python, and cloud technologies to design and deliver scalable backend solutions. You will lead software development, influence product roadmaps, and work with cutti...
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Ireland , Galway
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Hewlett Packard Enterprise
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Principal Manufacturing Systems Engineer - Amgen Dun Laoghaire Project Delivery Lead
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Lead IS/Automation project delivery for Amgen in Dun Laoghaire. This principal engineering role requires 8+ years in pharma/biotech manufacturing and expertise in PCS/MES systems. Drive innovation in a collaborative, science-based culture with a comprehensive benefits package. Make a lasting impa...
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Ireland , Dun Laoghaire
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Amgen
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Principal Engineer
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Lead strategic initiatives as a Principal Engineer at Intercom in Dublin. This full-stack role requires 7+ years' experience, deep technical leadership, and expertise in distributed systems. You'll mentor engineers and shape technical strategy while enjoying competitive benefits like equity, comp...
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Ireland , Dublin
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Intercom
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Principal Mechanical Engineer
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Lead innovative mechanical design for major building projects in Dublin and internationally. As a Chartered Engineer, you will manage large-scale projects and multidisciplinary teams. This role requires expertise in HVAC, low-energy design, and client-focused delivery. Join us to inspire a team a...
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Ireland , Dublin
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Cundall
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Principal Critical Systems Engineer
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Lead the design of cutting-edge, energy-efficient electrical systems for global Data Centres. This Dublin-based role requires a degree-qualified Electrical Engineer with consultancy experience in power distribution and Revit. You will manage projects and a team, driving sustainable and cost-effec...
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Ireland , Dublin
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Cundall
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Principal Engineer, Web Platform
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Lead the technical strategy for Intercom's high-scale web platform in Dublin. This principal engineering role requires 12+ years' experience and deep expertise in modern web stacks, data infrastructure, and MarTech systems. You'll architect a performant, scalable platform while mentoring engineer...
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Ireland , Dublin
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Intercom
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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.