Senior Backend Software Engineer

Join Arista Networks as a Software Engineer in our Engineering Productivity team. In this role, you will be instrumental in enhancing the software development processes and tools that empower our engineering teams. Your innovative ideas and technical skills will contribute to the efficiency and effectiveness of our software development life cycle.

Join Stripe as a Staff Engineer in our Production Engineering team, where you will play a critical role in building and maintaining scalable systems.As a leader in this innovative environment, you will collaborate with cross-functional teams to optimize our infrastructure and enhance the reliability of our services. You will leverage your expertise to influence product design and architecture decisions, ensuring the highest performance and availability.

About KotaKota is revolutionizing the accessibility of insurance and retirement benefits, making them as user-friendly as modern software. Our flagship solutions include the Kota Platform, the world's first fully integrated benefits platform, and Kota Embed, our innovative embedded insurance and retirement product tailored for various platforms.Our mission is to enhance the accessibility and enjoyment of insurance and benefits for today's workforce.Founded in 2022, Kota has successfully raised over €20 million from some of Europe’s leading technology investors, including Eurazeo, EQT Ventures, Northzone, and Frontline. Notable angel investors include Romain Huet, formerly of Stripe and now at OpenAI, and David Clarke, formerly of Workday. Our investors have a proven track record, having backed or built companies like Spotify, Airbnb, Klarna, Truelayer, Snapchat, Workday, Personio, Workvivo, Pointy, Workable, and Wayflyer, among others.The RoleAs a Backend Product Engineer on the Kota Embed team, you will play a crucial role in designing and developing the APIs and SDKs that power our embedded insurance and retirement benefits solutions globally. This position presents an excellent opportunity for a skilled backend engineer eager to advance into a senior role through increased ownership, cross-functional collaboration, and refining both product and engineering skills.Your ResponsibilitiesEnhance Core APIs and SDKs: Create new features and refine existing functionalities that developers will love.Hands-On Learning: Collaborate closely with experienced engineers on architecture, design, and code reviews to accelerate your professional growth.Elevate Developer Experience: Simplify workflows for customers and partners by transforming complex processes into intuitive APIs.Collaborate Across Teams: Work alongside product managers, designers, and integration teams to deliver impactful solutions.Increase Project Ownership: Gradually take charge of projects, engage in incident response, and foster a culture of blameless learning.

Join Toast, a leading technology company, as a Senior Software Engineering Manager overseeing our dynamic Web Platform and driving Product Led Growth initiatives. In this pivotal role, you will lead a talented team of engineers, fostering innovation and excellence while ensuring the seamless integration of our platform with customer needs and market trends.

Role Overview Tenable, Inc. is hiring a Senior Software Engineer for the Dublin office. This role focuses on building software that strengthens cybersecurity and helps defend against emerging threats. The team values practical solutions and welcomes new ideas that move the company forward. What You Will Do Design and develop software to address cybersecurity challenges Work closely with other engineers to deliver reliable, secure products Contribute technical expertise and creative problem-solving to team projects Work Environment This position is based in Tenable's Dublin office. The engineering team collaborates regularly and values clear communication. Contributions have a direct effect on the company's products and mission.

This position offers flexible work arrangements: Office, Hybrid, or Remote within Ireland.We are seeking a talented Senior Software Engineer to join our dynamic Engage Product Group within the Flywheel Product Line.The Engage Product Group is dedicated to transforming HubSpot's Go-To-Market (GTM) sales teams by empowering our sales representatives with cutting-edge AI technology, enabling them to meet and exceed their targets. Our team develops, refines, and maintains advanced AI solutions that significantly enhance closed-won rates by utilizing AI to qualify inbound leads, deliver actionable insights and coaching, and create personalized demo instances for every HubSpot prospect through sophisticated multi-agent systems.In this role, you will be instrumental in constructing a reusable, reliable, and intelligent context layer for GTM AI and agents. Our objective is to centralize the storage, search, and retrieval of insights, facilitating rapid experimentation, enhancing insight quality through systematic evaluation and versioning, and equipping flagship agents and guided experiences with consistent, high-quality context.As a Senior Software Engineer, you will be a highly productive, impactful, and trusted contributor who utilizes your expertise to autonomously tackle complex projects and shape technical direction. Your primary focus will be on context for the coming months, with opportunities to collaborate across various teams and product areas as your role evolves.Key Responsibilities:Develop and deploy production code that delivers significant business and GTM outcomes.Design and implement innovative AI features, agents, and insights that enhance GTM efficiency and improve user and prospect experiences.Collaborate within a small, cross-functional team of product engineers, ML engineers, PMs, and designers.Engage with HubSpot colleagues and GTM professionals across the organization.Gain in-depth exposure to HubSpot's GTM processes.We are searching for engineers with a strong business acumen and product mindset, who thrive in addressing real GTM challenges and can navigate ambiguity with autonomy and enthusiasm.While we primarily utilize Java, we value solid programming fundamentals over specific technology experience. To learn more, check out our engineering blog.Desired Qualifications:Proven experience in developing AI products, particularly in GTM contexts, with a history of driving evaluations and innovation based on cutting-edge model advancements.Experience in building...

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.

Join our innovative team as a Senior Software Engineer at MongoDB in Dublin. We are seeking a talented individual who excels in designing and implementing robust software solutions. You will collaborate with cross-functional teams to develop high-quality applications and contribute to all phases of the software development lifecycle. This role offers a unique opportunity to work on exciting projects and leverage cutting-edge technology in a dynamic environment.

Join Intercom as a Staff Product Engineer - Growth and play a pivotal role in enhancing our product offerings. In this position, you'll leverage your engineering expertise to drive growth and innovation. Collaborate with cross-functional teams to develop and implement strategies that enhance user experience and engagement.

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.

Semperis develops enterprise security and identity solutions, with a focus on creating an environment where employees feel valued and supported. The company has been recognized by Inc. 5000 as one of America’s fastest-growing cybersecurity companies and is listed as a DUNS 100 Top Startup to Work For. Semperis has also received the Inc. Best Workplace award multiple times. Role overview The Platform Group at Semperis is seeking a Senior Backend Software Engineer based in Dublin, Ireland. This position centers on designing and building shared infrastructure components that underpin the company’s security and identity products. The role blends hands-on engineering with teamwork across product, DevOps, and architecture groups. What you will do Design and implement shared platform components to support scalability, reliability, and maintainability for several product teams. Architect distributed systems using microservices and event-driven approaches for enterprise-scale workloads. Own key backend services throughout their lifecycle, focusing on code quality, performance, and operational standards. Collaborate with product engineers, DevOps, and architects to define platform features and set technical guidelines. Mentor junior engineers through code reviews, pair programming, and technical advice. Lead technical projects aimed at improving developer productivity, system observability, and platform resilience. Contribute to architectural decisions and help define backend development best practices across the company. Analyze system performance and data trends to identify optimization opportunities and guide future platform investments. Requirements Minimum 7 years of professional experience in software engineering, with a strong emphasis on backend development. Expertise in C# and .NET Core, including familiarity with recent framework enhancements and performance features.

At Toast, we are committed to revolutionizing the restaurant industry by providing an all-in-one platform that empowers restaurants to manage their operations, boost sales, engage customers, and ensure employee satisfaction. Our Toast POS (point-of-sale) application stands as the backbone of our restaurant solutions, utilized daily by millions of servers, hosts, bartenders, and chefs to enhance guest experiences.We are seeking a talented Senior Android Engineer to join our Kiosk team. This innovative group is responsible for the Kiosk product, a user-friendly Android tablet that facilitates self-ordering and payment for patrons at restaurants. Following the recent launch of an enhanced Kiosk experience across all Toast restaurants, we aim to continue evolving this product by integrating new features that will enhance guest interactions and streamline restaurant operations.If you're eager to contribute to impactful solutions that help restaurants thrive globally, Toast is the ideal environment for you.

About AnthropicAt Anthropic, we are on a mission to develop AI systems that are not only reliable and interpretable but also steerable. Our primary goal is to ensure that AI technology is safe and advantageous for all users and society at large. Our rapidly expanding team consists of dedicated researchers, engineers, policy experts, and business leaders, all working collaboratively to create beneficial AI solutions.Role OverviewAt Anthropic, we believe in the strength of collaboration. Our AI Reliability Engineering (AIRE) team plays a crucial role in maintaining the robustness of Claude, our flagship AI, ensuring it remains reliable for everyone who relies on it. We work closely with various teams within Anthropic to enhance reliability across our essential service paths—from the SDK, through our network, API layers, serving infrastructure, and accelerators, and back again. Our hands-on approach allows us to make impactful improvements during incidents and in collaborative projects.Reliability is an emergent quality that extends beyond individual teams. Our role involves taking a comprehensive view of the systems, offering a unique opportunity for dynamic, cross-functional engagement with the most critical aspects of our operations.

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.

Intercom, a leader in AI Customer Service, is dedicated to enhancing business-customer interactions through innovative technology.Our flagship AI agent, Fin, represents the pinnacle of customer service AI, enabling businesses to provide always-on, exceptional customer support. When combined with our Helpdesk, it forms the Intercom Customer Service Suite, a comprehensive solution designed to tackle complex inquiries that require human touch.Since our inception in 2011, Intercom has built a robust client base of nearly 30,000 global businesses, championing a new standard in customer service. With values that inspire innovation, urgency, and value creation, we are committed to pushing boundaries.What’s the Opportunity?As a Staff Product Engineer, you will take on a pivotal role within our team and contribute significantly to our engineering efforts. You will develop both back-end and front-end systems, collaborating closely with designers, product managers, researchers, and data analysts. Your responsibilities will also include mentoring fellow engineers and partnering with the Engineering Manager to shape the team’s growth and technical direction.What Will I Be Doing?In this role, you will:Contribute to the evolution of our technical architecture to accommodate the growing demands of our customer base.Prioritize agility along with scalability and availability, utilizing continuous deployment to focus on incremental improvements.Engage in all stages of software development, from ideation and prototyping to design and implementation, balancing hands-on coding with architectural leadership.Utilize cutting-edge tools to enhance your development experience, allowing you to focus on solving impactful challenges.Actively participate in the hiring, mentoring, and career progression of engineering talent.Set high standards for technical excellence, performance, reliability, and operational success.

Join Toast, Inc. as a Staff Software Engineer in the FinTech sector, where you will be instrumental in building innovative financial solutions to empower businesses. We are looking for a skilled engineer with a passion for technology and a commitment to excellence. You'll collaborate with cross-functional teams to deliver robust software solutions that enhance our financial services platform.

At Klaviyo, we celebrate the diverse backgrounds, experiences, and perspectives that each member, affectionately known as a Klaviyo, brings to our vibrant workplace. We believe in providing every individual with a fair opportunity for success and value the unique experiences beyond traditional job qualifications. If you feel you closely align with this description but don't meet every requirement, we encourage you to apply. Curious about life at Klaviyo? Visit klaviyo.com/careers to explore how we empower creators to shape their own destinies.Team Overview:The Amplify Engineering team is dedicated to building cutting-edge internal tools, platforms, and AI-driven automation that enhance the efficiency and scalability of Klaviyo as we expand. We collaborate across various departments, including Sales, Marketing, Engineering & Product, Customer Service & Success, and Finance, to address real operational challenges with innovative software solutions.Our projects encompass internal applications, third-party integrations, interactive dashboards, CMS integrations, and robust AI systems that automate repetitive tasks, deliver timely information, and assist teams in making informed decisions. We thrive on tight feedback loops with our internal customers, enabling us to ship rapidly, learn continuously, and witness the tangible impact of our efforts on speeding up deals, resolving tickets promptly, and facilitating smoother launches.This position is tailored for lead engineers who are passionate about transforming real-world challenges into reliable, scalable solutions. The work you will do is highly visible and directly influences how thousands of Klaviyos accomplish their daily tasks.How You’ll Make an Impact:As part of the Amplify team, you will be instrumental in creating the internal platforms, automation, and AI systems that drive the daily operations of Klaviyos. As a Lead Software Engineer on Amplify, your responsibilities will include:Providing technical leadership and guidance for a suite of Amplify systems, including internal web applications, APIs, data pipelines, and AI workflows utilized by Sales, Marketing, Customer Service & Success, R&D, and Finance teams. You will play a crucial role in ensuring these systems are reliable, scalable, secure, and easy to evolve.Formulating...

Join Our Innovative Database Experience (DBX) TeamThe Database Experience team is dedicated to creating the libraries and tools that empower developers in their daily work with MongoDB. Our goal is to enhance developer adoption, satisfaction, and retention by providing a dependable and enjoyable interface.We are actively seeking a skilled engineer to join our PHP team based in Dublin. You will collaborate with a team of three engineers to optimize and drive the adoption of MongoDB within the PHP community.This role supports a hybrid working model for candidates located in Dublin.Your ResponsibilitiesMaintain and enhance the MongoDB PHP Extension.Collaborate with the libmongoc team to architect APIs utilized by the PHP driver.Engage with PHP core developers to stay informed on updates in the PHP language.Assist our Developer Relations, Documentation, and Education teams in generating high-quality resources for PHP developers.Pursue speaking and writing opportunities to actively engage with the PHP community.Are You the Right Fit?You thrive on developing libraries that enable developers to build and deploy applications more efficiently.You believe developers deserve superior tools for database interaction.You champion testing and agile software development practices.You are passionate about Open Source and committed to giving back to the community.You enjoy working within a small, distributed team across Ireland, France, Germany, and the Netherlands.Required Qualifications5+ years of experience in PHP development.3+ years of experience managing PHP extensions.Strong understanding of relational and non-relational database systems.Familiarity with testing methodologies and static analysis.Excellent English communication skills, both written and verbal.Preferred QualificationsExperience contributing to the PHP project.Proficiency with build tools such as autotools and make.Hands-on experience with MongoDB and its document model.Success MetricsWithin three months, you will effectively contribute to daily tasks, including bug fixes, feature implementations, and thorough code reviews.Within six months, you will influence the roadmap and lead the design of new features.

This hybrid role is based in Dublin, Ireland (Full relocation provided). At Toast, we are dedicated to empowering restaurants and local businesses to thrive in a digital world. Our innovative technology solutions assist business owners in operating efficiently, boosting sales, engaging customers, and fostering employee satisfaction. Our Mission Toast is proud to be the leading hospitality platform in the United States, and we are now setting our sights on global expansion. As a member of our International team, you will help build the foundational systems necessary for launching Toast into new markets. Join our high-impact engineering team that takes ownership of solving complex technical challenges in a dynamic setting. We seek leaders who excel in technical capabilities while maintaining a strong product focus to foster continuous growth for both our team and platform. Your Role (Responsibilities) Lead intricate projects within a collaborative cross-functional environment. Coordinate our backend services to facilitate internationalization across both restaurant and cloud software. Design, build, deploy, and maintain robust and scalable systems that are essential for our customers’ success. Refine our technical strategies for data management to support our international initiatives. Provide mentorship and technical guidance to fellow team members, spearheading technical discussions and promoting best engineering practices. Engage directly with pilot customers (occasionally on-site) to ensure seamless delivery and operations. Champion best coding practices, elevating standards for yourself, your team, and the organization. Utilize cutting-edge AI tools to enhance your development workflow, boost productivity, and contribute to a culture of innovation and efficiency across the team.