Senior Software Engineer - Backend

Senior Software Engineer - Backend Location : Dublin, Ireland Position Type : Full-Time | Permanent | Hybrid Salary : € (Depending on experience) About the Role We are a fast-growing technology-driven company focused on building high-performance, scalable systems that power real-time customer experiences for millions of users daily. As a Senior Software Engineer (Backend), you'll play a key role in shaping the architecture and future of our backend services in a 24 / 7, always-on environment. What You'll Do Build and maintain robust APIs and backend services processing millions of real-time transactions daily. Deliver high-quality, production-ready code with an emphasis on scalability, reliability, and performance. Own the software development lifecycle-from concept and design to deployment and long-term support. Troubleshoot production issues in real-time, participate in on-call rotations, and drive root-cause resolution. Continuously improve systems with a strong focus on operational excellence, automation, and fault tolerance. Collaborate with cross-functional teams including architects, product managers, and QA to ensure alignment with technical and business goals. Mentor junior developers and contribute to maintaining a high-quality engineering culture. What We're Looking For 3+ years of professional experience in backend software development, ideally using object-oriented languages such as .NET or C#. Strong understanding of OOP principles, design patterns, and distributed systems architecture. Proven experience deploying and managing applications in cloud environments like AWS or Google Cloud Platform. Expertise in developing and maintaining automated tests including unit, integration, and performance testing. Strong debugging, problem-solving, and collaboration skills. A passion for building high-performance systems with large-scale, real-time data flows. Nice to Have Experience working in high-availability environments such as fintech, gaming, e-commerce, or similar. Exposure to containerization (Docker, Kubernetes) and CI / CD practices. Contributions to open-source projects or technical blogs. What We Offer Competitive compensation and benefits package Flexible hybrid working model Annual bonus and stock / equity options Generous annual leave and wellness days Learning & development budget A collaborative and inclusive engineering culture If you're interested, please apply below. For more information, contact Joseph Mullan in Reperio Human Capital. Reperio Human Capital acts as an Employment Agency and an Employment Business. Skills : .NET C# Software Developer Kubernetes Benefits : Work From Home