Principal Engineer - Development Infrastructure

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.

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.

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.

Join Toast, a leading restaurant technology platform, as a Senior Principal Software Engineer in the Team Agent division. In this pivotal role, you will spearhead the development of innovative software solutions that empower restaurant operators to thrive in an increasingly digital world. Your expertise in software engineering will guide the team in building robust, scalable applications that enhance operational efficiency and improve customer experiences.

CarGurus has built a reputation as a trusted automotive marketplace, helping people navigate car buying and selling with confidence. The company’s platform supports millions of monthly visitors and thousands of dealerships, offering tools for selling, financing, purchasing, and delivery. With a foundation in transparency and a culture that values kindness, collaboration, and innovation, CarGurus encourages employees to grow their careers and contribute to ongoing evolution in the automotive space. The International team in Dublin is looking for a Software Development Engineer II. This role centers on product initiatives for the Canadian and UK markets and provides an opportunity to influence the culture of a growing office. Role overview This position covers the full software development lifecycle, spanning both frontend and backend work. Software Development Engineers at CarGurus work closely with Engineering and Product teams to develop solutions and address complex challenges for dealer-facing products. What you will do Build new full-stack features for dealer products from the ground up Integrate and enhance existing services using React, TypeScript, and Java Implement integrations with third-party APIs and partners Engineers in this role take ownership of projects from start to finish, collaborating with teammates and product partners to deliver results for international markets. Automotive industry experience is not required; the team values strong engineering skills and a drive to create new solutions.

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!

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.

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.

Role overview The Staff Software Engineer - Backend Development at Ripple will focus on designing and building scalable backend systems in Dublin, Ireland. This position plays a central role in supporting the platform’s performance and reliability. Regular collaboration with cross-functional teams is expected. What you will do Partner with engineers and other groups to design backend architecture Develop systems that enhance platform reliability and scalability Help set technical direction for products and backend solutions Offer ideas and contribute code to address evolving customer needs

Position ID: POS-32048 About HubSpot’s Approach to Applications HubSpot knows that concerns like confidence gap and impostor syndrome sometimes keep talented people from applying. If this role interests you, consider submitting an application. Accessibility and Accommodations If a disability makes it difficult to apply or participate in the process, please let us know using this form. HubSpot is committed to supporting candidates who need alternative arrangements. Work Location and Onboarding Flexibility and connection matter at HubSpot. Team members can work remotely or from the Dublin office, but new Engineering hires attend in-person onboarding at a regional HubSpot office. Product team members also join in-person events to build relationships. If travel or other factors require adjustments, please discuss this with your recruiter during the hiring process. Legal Notice for Massachusetts Applicants Massachusetts law prohibits employers from requiring or administering lie detector tests as a condition of employment or continued employment. Violations may result in criminal and civil penalties.

Join the MongoDB Database Experience team, a vibrant and diverse group dedicated to enhancing our users' ability to manage MongoDB at a global scale. We develop cutting-edge tools for MongoDB Atlas, our database-as-a-service solution, which is our fastest growing product, enabling users to deploy fault-tolerant, globally distributed MongoDB clusters in mere minutes. We are on the lookout for a Senior Software Engineer to become a vital member of our Developer Tools Team within the Database Experience division. This team is key in creating tools that empower users to interact seamlessly with their data and monitor the health and performance of their MongoDB deployments. Whether through desktop applications like MongoDB Compass or web-based interfaces such as Atlas Data Explorer, the Developer Tools Team plays a crucial role in user engagement. This role requires participation in a 24/7 on-call rotation to maintain business continuity and ensure prompt incident response. This position can be fulfilled from our Dublin office or remotely within Ireland.

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

CarGurus, listed on NASDAQ as CARG, started as a small team of developers with a focus on trust and transparency in car shopping. Over the past 15 years, the company has become one of the largest automotive marketplaces, recognized for steady profitability, innovation, and sustained growth. The mission at CarGurus is to bring the entire car-buying process online, supporting customers through every step, from selling their old car to securing financing, purchasing, and delivery. With tens of millions of visitors each month and around 30,000 dealerships using CarGurus.com, the team values collaboration, diverse perspectives, and ongoing career development. Role overview The International team is seeking a Senior Software Development Engineer for the Dublin office. This position centers on expanding CarGurus' products in the Canadian and UK markets, while also contributing to the growth of the local office culture. The role involves working throughout the entire software development lifecycle, covering both frontend and backend development. Close collaboration with engineers and product teams is essential to deliver new solutions for dealer-focused products. What you will do Build new full-stack features for dealer products from the ground up Work with React, TypeScript, and Java to integrate with existing services and enhance functionality Design and implement integrations with third-party APIs and external partners Modernize current systems by adopting cloud technologies, including AWS Projects move from concept to launch, with engineers and product partners working closely together. Automotive industry experience is not required; curiosity and strong engineering skills are most important.

CarGurus, Inc. is hiring an Engineering Manager, Software Development for its Dublin, County Dublin, Ireland office. This is a key leadership role, responsible for establishing and guiding the first engineering team in the new Dublin location. The team will focus on developing dealer-facing products for international markets, with particular attention to Canada and the UK. Role overview This position centers on building and leading a group of full stack engineers. The Engineering Manager will work closely with a Product Manager to define the team's vision, shape its culture, and set a clear strategic direction. The team will take ownership of specific product areas, developing new features and enhancing existing offerings to support CarGurus’ international growth. What you will do Recruit, mentor, and lead a new team of full stack engineers in Dublin Partner with a Product Manager to define team vision, culture, and roadmap Emphasize customer outcomes through open communication and collaboration Apply an iterative approach to both product development and team management Oversee projects and improvements for dealer products in international markets, especially Canada and the UK Coordinate closely with engineering teams in the United States What matters here Genuine interest in both engineering and leadership Proven experience building and guiding high-performing teams Dedication to a collaborative, people-first culture Automotive industry experience is not required

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.

About TelnyxAt Telnyx, we are not just envisioning the future of global connectivity—we are actively creating it. Our dedication to constructing a private, global, multi-cloud IP network empowers seamless interconnection between people, devices, and applications through innovative solutions, including hyperlocal edge technology delivered via intuitive APIs.Our aim is to revolutionize outdated systems, automate manual processes, and address real-world challenges through cutting-edge connectivity solutions. We take pride in our financial stability and profitability, which allows us to invest in pioneering technologies while nurturing an environment for continuous learning and career growth.Join us in our vision of a world where borderless connectivity drives limitless innovation. We are eager to welcome passionate individuals who are excited about contributing to an industry-leading company while enhancing their own skills and careers.The OpportunityOur AI teams are at the forefront of developing reliable, low-latency microservices using advanced, cloud-native technologies. This position is a key part of our larger AI organization, focusing on crafting the platforms, services, and tools that underpin AI-driven products—encompassing areas such as inference, embeddings, APIs, data flows, and observability.In this fast-paced role, you will prioritize reliability, performance, and usability alongside innovation. While some squads concentrate on inference pipelines and LLM tooling, others delve into foundational platforms, troubleshooting, reliability, data systems, or observability—each critical to deploying AI solutions at scale.

The MongoDB Database Experience team is a dynamic and diverse group dedicated to enhancing user management of MongoDB at a global scale. We are focused on developing innovative tools for MongoDB Atlas, our rapidly growing database-as-a-service platform that enables users to deploy fault-tolerant, globally distributed MongoDB clusters in mere minutes. We are on the lookout for a Senior Software Engineer to become an integral part of our Developer Tools Team within the Database Experience department. This team is responsible for crafting tools that empower users to interact with their data and monitor the health and performance of their MongoDB deployments. Our work includes a variety of APIs and user-friendly interfaces, allowing MongoDB users to manage their stored data seamlessly, whether on desktop through MongoDB Compass or in the browser via Atlas Data Explorer. This position offers the flexibility to work from our Dublin office or remotely within Ireland.

At Ripple, we are pioneering a future where value is transferred as effortlessly as information. Our innovative crypto solutions empower financial institutions, businesses, governments, and developers to enhance the global financial system, promoting economic fairness and opportunity for individuals worldwide. Join a dynamic team where you can elevate your career and expand your skill set alongside supportive colleagues.If you are eager to make a significant impact and unlock remarkable career advancement prospects, we invite you to join us in creating tangible value for the world.In 2025, Ripple acquired GTreasury, marking an important step into the expansive corporate finance sector valued in the trillions.With over 40 years of expertise, GTreasury supports some of the largest and most sophisticated companies globally. By integrating its treasury command center into Ripple’s technology stack, we enable businesses to manage and optimize liquidity in real-time, across both traditional and digital assets.Become a part of our mission to revolutionize corporate treasury and the infrastructure that powers the Internet of Value.We are looking for a forward-thinking Staff Software Engineer who is passionate about developing a world-class platform in collaboration with a talented team. Your role will focus on driving technical excellence in application development, from design through implementation and maintenance.Key Responsibilities:Collaborate with architects and product managers to design, estimate, and implement innovative application features across front-end, server-side, and database tiers.Utilize Azure services to develop powerful, scalable, and resilient cloud-based solutions.Enhance software applications and manage delivery pipelines, feature flags, ensuring smooth integration and deployment.Conduct thorough unit, integration, and non-functional (performance, security) testing to ensure production readiness of our software.Employ observability tools and logging to troubleshoot and resolve issues across development, testing, and production environments.Stay updated on technology trends, explore new technologies, engage with tech communities, mentor fellow engineers, and lead technical design and code evaluations.Continuously seek improvements in team operations, processes, methodologies, and technology choices, aiming for excellence in every practice.

Join Pinterest as a Software Engineer II, where you'll be part of a dynamic team dedicated to shaping the future of visual discovery. In this role, you will design, develop, and maintain high-quality software solutions that enhance user experiences. Collaborate with cross-functional teams to deliver innovative features that align with our mission of bringing everyone the inspiration to create a life they love.