Principal Engineer - Development Infrastructure

AECOM seeks a Principal Engineer focused on Development Infrastructure based in Dublin. This role leads teams through all stages of urban infrastructure projects, ensuring each phase moves smoothly from initial planning to final delivery. Role overview The Principal Engineer takes responsibility for guiding teams and managing projects that support urban development. Collaboration with professionals across various disciplines is central to delivering effective solutions. What you will do Lead infrastructure development projects from early planning to completion Ensure all project work aligns with industry standards and meets regulatory requirements Coordinate with experts from different backgrounds to achieve project goals

Role overview The Development Infrastructure Engineer position at AECOM in Dublin centers on supporting a variety of infrastructure projects. The focus is on delivering solutions that are both efficient and sustainable. Collaboration with colleagues from multiple disciplines is a key part of the role, ensuring that infrastructure systems meet current industry standards. What you will do Work alongside cross-functional teams to design, implement, and maintain infrastructure systems. Support ongoing efforts to enhance efficiency and sustainability in development practices. Contribute to projects where high standards in infrastructure delivery are expected.

Role Overview Toast, Inc. is hiring a Principal Infrastructure Engineer in Dublin, Ireland. This role focuses on designing and implementing infrastructure solutions that support scale, security, and reliability across the company’s systems. What You Will Do Design infrastructure to meet business and technical needs Implement solutions that support scalability and reliability Work closely with teams from different disciplines to deliver secure systems

CarGurus, Inc. helps people navigate every stage of their automotive experience, from shopping to financing and delivery. Founded by a small group of developers, the company has grown over 15 years into a major automotive marketplace, serving millions of consumers and thousands of dealerships each month. The team values kindness, collaboration, and creativity, and supports ongoing career development. The International team is hiring a Principal Software Development Engineer for the Dublin office. This position leads product efforts for the Canadian and UK markets, and plays a key part in shaping the local office culture. The role covers the full software development lifecycle, with work spanning both frontend and backend systems. Collaboration with Engineering and Product teams in Dublin and the US is central to the job, especially when tackling complex dealer-focused products. What you will do Lead the design and development of new full-stack features for dealer products. Integrate and enhance existing services using React, TypeScript, and Java. Design and implement integrations with third-party APIs and partners, working with applications built on Remix. Modernize and re-architect systems to use AWS and other cloud technologies. Own projects from start to finish, working closely with engineers and product partners in both Dublin and the US. Requirements Quick to learn and adapt to new challenges. Experience collaborating with other engineers to deliver meaningful solutions. Strong technical expertise combined with business insight to help guide teams in strategic decisions.

AECOM is seeking a Senior Engineer to join the Development Infrastructure team in Dublin. This position plays a key role in delivering infrastructure projects that support community growth and urban development. Role overview This role involves leading a team of engineers and working closely with stakeholders to ensure successful project outcomes. The Senior Engineer will take responsibility for guiding projects from planning through completion, focusing on both technical quality and effective collaboration. What you will do Lead and mentor a team of engineers working on development infrastructure projects Coordinate with stakeholders at every stage of the project lifecycle Oversee project execution to ensure technical requirements and quality standards are met Apply technical expertise to address project challenges and deliver effective solutions

Role overview The Associate Director of Development Infrastructure at AECOM in Dublin takes on a senior leadership position, overseeing a variety of development and infrastructure projects. This role carries responsibility from the initial planning stages through to final delivery. The Associate Director supervises project teams, tracks progress, and ensures that all work meets quality and compliance standards at every step. Key responsibilities Lead and manage teams focused on development infrastructure projects Oversee the execution of development strategies to achieve project objectives Maintain alignment with quality standards and regulatory requirements throughout project lifecycles About AECOM in Dublin AECOM provides infrastructure consulting and project management services worldwide. The Dublin office supports a diverse portfolio of complex development projects, contributing expertise to significant initiatives across the region.

Join Primark as a Principal Engineer, where your expertise will drive technological innovation and excellence in our systems. You will play a pivotal role in leading engineering initiatives, mentoring junior engineers, and collaborating with cross-functional teams to deliver outstanding solutions that enhance customer experience.Your contributions will not only shape our technology landscape but also set the foundation for future projects. If you're passionate about engineering and eager to make a significant impact, we want to hear from you!

Why Choose PlayStation?At PlayStation, we pride ourselves on being not only the premier destination for gaming but also a remarkable workplace. As a global frontrunner in the entertainment industry, we develop an iconic range of products and services, including PlayStation®5, PlayStation®4, PlayStation®VR, PlayStation®Plus, and award-winning titles from PlayStation Studios.We are committed to fostering an inclusive atmosphere that empowers our employees and celebrates diversity. We invite individuals who are passionate about innovation, technology, and gaming to explore our career opportunities and become part of our expanding global family.PlayStation operates as a division of Sony Interactive Entertainment, a wholly-owned subsidiary of Sony Group Corporation.The Lead Principal Software Engineer will collaborate across various teams including Product Management, Architecture, Engineering, Hosting, and Operations. This role demands extensive technical knowledge, creativity, industry insight, and strong communication skills. You will leverage your technological expertise to drive future innovations on our platforms.In this capacity, you will play a critical role in architecting large-scale commerce systems on the Sony PlayStation Network Platform. Your contributions will adhere to industry best practices, facilitating highly available, active-active, and scalable services.You will engage in product roadmap discussions, pinpointing essential areas for enhancement and integrating these objectives into both current and future development strategies.

At Intercom, we pride ourselves on being a pioneering AI Customer Service company dedicated to revolutionizing customer experiences for businesses worldwide.Our flagship AI agent, Fin, stands out as the most advanced customer service AI agent available, empowering businesses to deliver exceptional customer service around the clock. Fin can seamlessly integrate with our Helpdesk to form the Intercom Customer Service Suite, a comprehensive solution designed to handle both complex inquiries that necessitate human intervention and straightforward requests.Since our inception in 2011, Intercom has gained the trust of nearly 30,000 businesses globally, setting a new benchmark in customer service. Guided by our core values, we continuously strive to innovate, work with urgency, and deliver unparalleled value to our clients.What’s the opportunity?As a Principal Engineer at Intercom, you will have the unique opportunity to lead the formulation and implementation of vital strategic initiatives. You will operate independently while being accountable for successful execution within a segment of our engineering organization. Your responsibilities will encompass developing both back-end and front-end systems, collaborating closely with designers, product managers, researchers, and data analysts. Additionally, you will mentor and guide fellow engineers while partnering with Group Engineering Managers on technical strategy and leadership.What will I be doing?In this role, you will:Exhibit mastery in your domain knowledge, acting as a leader in the R&D organization to propel essential strategic projects forward.Provide evaluations of project status, risks, and challenges to engineering leadership to inform resource allocation and prioritization.Contribute to our technical architecture as we expand, ensuring scalability to handle requests from all our customers’ customers.Value agility as much as scalability and availability, with a focus on continuous deployment for incremental releases.Engage in all stages of software development, including ideation, prototyping, design, and implementation, blending hands-on development with leadership and architectural tasks.Utilize the industry’s best tools, as we heavily invest in AI-powered developer tools that eliminate friction and enhance your problem-solving capabilities.

About the Role AECOM is hiring a Principal Structural Engineer in Dublin. This position leads challenging structural engineering projects and works closely with colleagues from various disciplines. The role involves guiding project delivery and contributing technical insight throughout the process. Main Responsibilities Lead complex structural engineering projects from concept through completion Mentor and support junior engineers on technical matters and career growth Work with multidisciplinary teams to deliver high-quality solutions

Role overview Toast, Inc. seeks a Principal Software Engineer in Dublin to help define the architecture and future of its restaurant management platform. The position centers on designing and building dependable software, with a strong emphasis on collaboration across teams to deliver features that support restaurant operations. What you will do Shape architectural decisions and set the technical direction for major projects Work with engineers, product managers, and stakeholders to deliver reliable, high-quality software Share knowledge to help teams adopt best practices and enhance system performance Support a culture that encourages quality, learning, and ongoing improvement Location This role is based in Dublin, Ireland.

Role overview AECOM is seeking a Principal Electrical Engineer specializing in substations for its Dublin office. This position centers on leading the design and delivery of substation projects, with a focus on quality, safety, and compliance with industry standards. What you will do Lead the design of substation projects from initial concept through to implementation. Oversee project execution, ensuring all work aligns with industry standards and safety regulations. Provide guidance and support to the engineering team at each stage of the project lifecycle. Ensure all solutions meet client requirements and uphold high quality standards. Requirements Professional background in electrical engineering with a focus on substations. Demonstrated leadership and project management skills. Strong commitment to safety and regulatory compliance. Ability to deliver dependable, client-oriented solutions.

Role overview The Infrastructure Project Engineer at AECOM will manage and deliver a range of infrastructure projects in Dublin. This position covers the entire project process, from early planning stages through to final completion. Key responsibilities Lead infrastructure projects through all phases, from concept to delivery. Coordinate with colleagues in various disciplines to align project activities. Track project progress, ensuring timelines and budgets are met. Uphold safety and quality standards throughout each stage of the project. Location This position is based in Dublin.

Intercom builds AI-powered customer service tools that help businesses deliver reliable, round-the-clock support. Our AI agent, Fin, and the Intercom Customer Service Suite combine automation with human expertise to handle millions of customer inquiries every month. Since 2011, nearly 30,000 businesses worldwide have chosen Intercom to raise their customer service standards. Role overview The Senior AI Infrastructure Engineer role focuses on developing and scaling the systems that train and deploy Intercom’s next generation of AI products. The AI Infrastructure team works across the stack, from GPU-level engineering up to the user-facing agents that power customer support. This team has built training pipelines and inference systems for models like Fin Apex, which are tailored for customer service and serve as the foundation for Intercom’s AI capabilities. What you will do Design and scale training pipelines for large transformer and LLM models, including data ingestion, preprocessing, distributed training, and evaluation. Build and improve inference services to ensure fast, reliable experiences for clients, covering auto-scaling, routing, and failover. Optimize GPU-level performance by tuning kernels, improving resource utilization, and identifying bottlenecks in training and inference workflows. Work closely with ML scientists to implement new training and inference techniques. What we’re looking for Strong experience with model training or large-scale model inference, and hands-on knowledge of low-level GPU programming (such as CUDA or Triton). Experience in more than one of these areas is especially valuable. Location This position is based in Dublin, Ireland.

Join Contentful as a Senior Software Engineer specializing in Backend & Infrastructure, where you will play a pivotal role in architecting robust, scalable systems that empower our clients to deliver exceptional digital experiences. You will leverage your expertise to optimize backend systems and enhance our infrastructure, ensuring seamless integration and performance.

At Klaviyo, we celebrate the diversity of backgrounds, experiences, and perspectives each member of our team brings every day. We believe everyone deserves an equal opportunity for success and appreciate the unique experiences beyond conventional job requirements. If you feel like you may not meet every criterion in this description, we encourage you to apply. Curious about life at Klaviyo? Discover how we empower creators to take control of their own destinies at klaviyo.com/careers.Klaviyo drives growth for businesses by enabling them to connect with customers at the right time through the right channels. As the Director of Engineering, Messaging Infrastructure, you will lead the teams responsible for developing and operating our core multi-tenant platform that facilitates message exchange at scale across email, SMS, mobile push notifications, WhatsApp, and future channels. Your organization will oversee the services, pipelines, and integrations that guarantee messages are delivered swiftly, reliably, and in compliance with regulations—empowering our product teams to innovate confidently while ensuring our customers trust us with their most important communications. Success in this role translates to enhanced deliverability, reduced latency, decreased cost-per-message, a robust privacy and compliance framework, and improved developer velocity across Klaviyo.

Seapoint is developing a financial hub designed for European startups and scale-ups. The platform brings together payroll, expenses, invoicing, and reporting within a single business account, using AI to simplify financial operations for founders. Founded by Sean Mullaney, former European CIO at Stripe, Seapoint’s team includes alumni from Stripe, Wise, Wayflyer, Nubank, and Tide. The company has raised $10 million from Frontline Ventures and is currently in private beta, collaborating with VC-backed startups to improve financial insight and automation. Many European startups face the challenge of managing multiple financial tools, often losing out on interest and spending excessive time on manual tasks. Seapoint’s platform aims to automate these processes, allowing founders to focus on growing their businesses. Role overview The Senior Infrastructure Engineer leads the design, development, and scaling of the systems behind Seapoint’s financial platform. This role focuses on building and maintaining infrastructure that supports a multi-tenant financial product. Key areas include CI/CD, observability, database reliability, and cloud architecture. Decisions in this position directly influence how Seapoint deploys, monitors, and scales its platform for real-world financial operations. What you will do Cloud infrastructure: Design and manage AWS environments, covering compute, networking, security, and cost optimization. The stack uses TypeScript/Bun and PostgreSQL. Maintain secure, reliable, and cost-effective infrastructure as Seapoint grows. Developer experience: Build tools and CI/CD pipelines to help a small engineering team ship confidently. Emphasize fast builds, reliable previews, and zero-downtime deployments. Observability and reliability: Maintain monitoring, alerting, and incident response systems. Create dashboards, traces, and alerts to identify issues like payment failures or integration problems before they affect customers. Database and data infrastructure: Optimize PostgreSQL for multi-tenant financial workloads. Focus on connection pooling, query performance, backup strategies, and safe migrations to ensure data integrity. Security and compliance: Build infrastructure to support financial compliance, including secrets management, access controls, audit logging, and network security. Ensure the platform meets high security standards for financial services. Requirements 7+ years of professional experience in infrastructure, DevOps, or platform engineering Location: Dublin, County Dublin, Ireland

Join our dynamic team as a Senior Engineer specializing in Infrastructure Platforms. You will play a crucial role in shaping our infrastructure, enhancing our scalability and performance. Collaborate with cross-functional teams to design and implement robust systems that support our growing user base.As a Senior Engineer, you will be expected to leverage your extensive experience in software engineering, systems architecture, and cloud technologies to drive innovation within our infrastructure.

zerorisk is hiring an API Test Infrastructure Engineer in Dublin. This role combines elements of software engineering, quality assurance, and DevOps. The main responsibility: develop and support the infrastructure that enables teams to test APIs efficiently and at scale. Role overview The position centers on building platforms, tools, and workflows that help engineers create and execute reliable API tests. It also covers managing integrations with external tools and maintaining their reliability through automated API-level validation. What you will do Test infrastructure and platform Design and build automated API testing infrastructure for local, CI, and production-mirror environments. Maintain a shared library of reusable testing utilities, fixtures, helpers, and patterns for engineering teams. Lead efforts to containerize test environments using Docker and related tools to ensure consistent, reliable test runs. Integrate test infrastructure with CI/CD pipelines, including test reporting, alerting, and failure analysis workflows. Evaluate and introduce new tools, frameworks, or methodologies to improve the reliability, speed, and coverage of testing. External tool integrations and continuous validation Develop and maintain automated integration tests for third-party and external API-based tools used by zerorisk. Create monitoring and alerting systems to detect regressions or unexpected changes in external API behavior. Collaborate with internal teams to understand integration needs and translate them into automated, continuous testing scenarios.

Role Overview Intercom is hiring a Lead Principal Engineer for the Go-To-Market team in Dublin, Ireland. This role shapes product strategies and develops new solutions to improve customer engagement. The position calls for leadership of an engineering team and close collaboration with colleagues from other disciplines. What You Will Do Guide and mentor a skilled team of engineers Work with cross-functional partners to align on product direction Apply technical expertise to deliver solutions that create value for clients Influence the evolution of Intercom’s customer engagement products Location This position is based in Dublin, Ireland.