Mobile Software Engineering Internship (Android & iOS)

airapps is looking for an iOS Engineer in Dublin to help build and maintain mobile applications that improve user experiences. This position plays a key role in shaping software used by a broad audience. What you will do Design, develop, and maintain iOS applications using Swift and Objective-C Work closely with colleagues from different teams to deliver high-quality software Participate in architecture discussions and share input on technical decisions Troubleshoot and debug applications to ensure smooth performance What we look for Professional experience with Swift and Objective-C Understanding of software development best practices Strong problem-solving skills, especially in debugging and troubleshooting Ability to collaborate effectively with cross-functional teams

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.

Role Overview Speechify is looking for a Software Engineer to focus on our iOS Core Product in Dublin, Ireland. This role centers on building and improving features that directly impact how users experience and interact with our app. What You Will Do Develop and refine core iOS features for Speechify's main product Work closely with a team of engineers and product specialists to deliver improvements in user experience and app performance Contribute ideas and technical solutions that help shape the future of our iOS offering Team and Impact Join a group of professionals who care about building products that make a real difference for users. Collaboration and shared problem-solving are part of daily work at Speechify.

About TelnyxAt Telnyx, we are not just envisioning the future of global connectivity; we are actively creating it. Our work involves architecting and expanding the reach of a private, global, multi-cloud IP network, and providing cutting-edge hyperlocal edge technology through user-friendly APIs. We are committed to shaping a new era of seamless interconnection among people, devices, and applications.Fueled by a passion for transformation, we strive to modernize outdated systems, automate manual processes, and address real-world challenges with innovative connectivity solutions. Our strong financial stability and profitability enable us to invest in groundbreaking technologies while also promoting a culture of continuous learning and professional growth for our team.We envision a world where borderless connectivity drives limitless innovation. By joining us, you will play a crucial role in laying the groundwork for this interconnected future. We seek enthusiastic individuals eager to contribute to a transformative company while advancing their own careers.The RoleWe are in search of a Mobile Core Network Engineer to become a vital part of our team responsible for Telnyx's global mobile core network. You will oversee the infrastructure that powers our wireless platform, ensuring its reliability, scalability, and readiness for future developments. This is a hands-on position that encompasses network operations, deployment automation, and incident response.What You’ll DoNetwork Operations & InfrastructureDeliver and maintain core network services across global data centers, ensuring high availability of PGWs, DRAs, GTP proxies, HSS, and STPs.Design redundancy patterns (failover, active-active, disaster recovery) and facilitate service localization in new regions.Manage the GTP proxy fleet and DRA infrastructure, ensuring optimal performance and reliability.

At Crusoe, we are on a mission to drive the future of energy and intelligence. Our innovative platform empowers individuals to harness the full potential of artificial intelligence without compromising on scalability, speed, or sustainability.Join the forefront of the AI revolution with Crusoe's sustainable technology. Here, you'll be instrumental in pioneering transformative innovations, making a significant impact, and collaborating with a team that is redefining responsible cloud infrastructure.About the Role:As a Software Engineering Intern, you will be part of a dedicated team shaping the future of distributed systems technology. This 12-week, full-time internship in our Dublin office offers a unique opportunity to contribute to the development of a robust cloud infrastructure that supports groundbreaking advancements in fields such as artificial intelligence, graphics rendering, and computational biology. You won't just observe; you'll take on real responsibilities, tackle production-level challenges, and play a key role in Crusoe's vision for sustainable and ethical high-performance computing.Throughout your internship, you will engage in impactful projects that extend beyond traditional classroom learning. Benefit from one-on-one mentorship from industry veterans and collaborate with a diverse group of engineers to construct fault-tolerant systems utilized by customers across the globe. We are looking for motivated, inquisitive, and proactive students ready to forge valuable connections and launch their careers by addressing today's most challenging computational problems.Your ResponsibilitiesSystem Development: Design, implement, and maintain scalable, highly available, and fault-tolerant distributed systems to support demanding computational workloads.Product Development: Innovate and create cutting-edge products and tools from inception that will be leveraged by a global user base.Production Support: Identify, troubleshoot, and resolve complex issues in production environments to maintain platform reliability.Feature Development: Collaborate with product owners and stakeholders to design, test, and iterate on new features that enhance platform capabilities.Team Collaboration: Work closely with senior engineers and peers to ensure technical tasks align with broader organizational objectives.Mentorship Opportunities: Engage in dedicated mentorship sessions to accelerate your growth and deepen your technical expertise.

Join Squarespace as a Software Engineering Intern this summer in Dublin! We are on the lookout for enthusiastic students to be part of our dynamic Software Engineering Internship Program. Our diverse teams are dedicated to advancing the next generation of web platform technologies. Throughout this 12-week paid internship, you'll have the opportunity to make significant contributions, enhance your technical abilities, and immerse yourself in the vibrant culture of Dublin!Internship RolesBackend: Backend teams collaborate closely with our Frontend teams to create a seamless website creation and editing experience. You will play a key role in enhancing Squarespace's robust engine that supports millions of users globally. For this position, familiarity with Java and strong skills in data structures and algorithms are required.Frontend: Our Frontend teams design and build sophisticated web interfaces with a keen eye for aesthetics. Experience in JavaScript is essential for this role.Application ProcessReview the team descriptions and their specific language requirements.Select the team that excites you the most.If your application aligns with our needs, we will reach out with a take-home assessment before proceeding to interviews.

Speechify’s mission is to ensure reading never stands in the way of learning. Over 50 million people use our text-to-speech tools to turn PDFs, books, Google Docs, news articles, and websites into audio, helping them read faster, understand more, and remember what matters. Our product suite includes apps for Android, iOS, Mac, a Chrome extension, and a web app. Google named Speechify Chrome Extension of the Year, and Apple awarded us the 2025 Design Award for Inclusivity. We’re a fully distributed team of nearly 200, with no physical office. Our colleagues include frontend and backend engineers, AI research scientists, and experts from Amazon, Microsoft, Google, as well as alumni of top PhD programs and high-growth startups like Stripe, Vercel, and Bolt. Role overview: Tech Lead, Android Core Product Speechify is expanding its Android app, the most popular text-to-speech app on the Play Store. We’re looking for a Senior Android Engineer in Dublin, Ireland, ready to support our growing user base and help shape new projects that move our platform ahead. What you will do Lead development on core features for the Android app Make product decisions that directly impact millions of users Deliver exceptional user experiences Work closely with a distributed, multidisciplinary team What helps you succeed here Strategic thinking and an interest in impactful product work Strong technical background in Android development Commitment to high-quality user experiences Excellent communication skills Motivation to deliver results and take initiative Speechify keeps a flat organizational structure. Leadership comes from technical expertise and consistent results, not job titles. A strong work ethic and drive to succeed matter here. Interview process The process includes several technical assessments. We aim to complete all steps within one week.

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.

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 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.

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.

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 our dynamic team at Toast as a Senior Backend Software Engineer, where you will play a pivotal role in designing and developing innovative backend solutions. You will collaborate with cross-functional teams to create efficient and scalable systems that enhance our platform’s performance and user experience.Your expertise in backend technologies will drive the development of robust software applications, ensuring high availability and performance. Be part of a culture that values innovation, teamwork, and continuous learning.

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.

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.

Semperis is known for fostering a workplace where employees can grow and succeed together. The company has been recognized on the Inc. 5000 list of America's fastest-growing cybersecurity companies and has earned multiple awards for its positive culture and employee experience. Role overview The Platform Group at Semperis is looking for a Junior Software Engineer based in Dublin, Ireland. This position centers on designing and developing core infrastructure that supports enterprise security and identity products. Collaboration and a commitment to technical excellence are essential in this role. Key responsibilities Design and build shared platform components that improve scalability, reliability, and maintainability across several product teams. Contribute to the architecture of distributed systems using microservices and event-driven patterns for large-scale enterprise requirements. Oversee backend services throughout their lifecycle, focusing on code quality, performance, and operational efficiency. Collaborate with product engineers, DevOps, and architects to define platform features and establish technical standards. Take part in code reviews, pair programming, and provide technical guidance to teammates. Assist with initiatives that enhance developer productivity, system observability, and platform resilience. Participate in architectural discussions and help advance backend development best practices within the organization. Examine system performance and data patterns to spot optimization opportunities and guide future platform improvements. Requirements Minimum of 1 year of professional experience in software engineering, focusing on backend development. Practical experience with C# and .NET Core, including knowledge of modern framework features and performance tuning. Team-oriented mindset with a willingness to learn and contribute in a collaborative environment.

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.

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.