Senior Software Engineer - Node.js (Remote, Northern Ireland) We are seeking an experienced Senior Software Engineer to join a high-performing engineering team working on large-scale, cloud-based services that power products used by millions worldwide. This role focuses on building and maintaining modern backend services and APIs, ensuring they are reliable, scalable, and performant. You'll work closely with talented engineers and product managers to deliver new features, improve existing systems, and solve complex technical challenges. The environment is fast-paced but collaborative, with a strong emphasis on quality, innovation, and ownership. If you thrive in tackling challenging problems, are passionate about building high-quality software, and want the flexibility of fully remote working while contributing to impactful projects, this role offers a fantastic opportunity. Responsibilities Design, develop, and maintain backend services using Node.js and TypeScript Take ownership of key systems and projects from design through to deployment Collaborate with cross-functional teams to deliver high-impact solutions Break down complex requirements into achievable, prioritised tasks Ensure system resilience, scalability, and maintainability through best practices Mentor junior engineers and contribute to a culture of technical excellence Essential Skills Strong proficiency in JavaScript/TypeScript with Node.js on the server side Proven experience delivering clean, maintainable, production-grade code Solid understanding of system architecture and cloud-native design principles Strong problem-solving and communication skills Hands-on experience with MongoDB (essential) Ability to implement unit, integration, and functional tests Fullstack development experience advantageous Adaptability and willingness to learn new tools and technologies Collaborative, team-oriented approach Bonus Points For Experience working with web APIs at scale Familiarity with AWS and related cloud services Knowledge of CI/CD processes Experience with Golang Understanding of Agile development methodologies Prior experience in high-traffic or media-rich environments Our Engineering Values Ownership and accountability in delivering technical solutions Collaboration and open communication across teams Producing high-quality code with continuous improvement in mind Mentoring and supporting colleagues to grow collectively Sharing knowledge through talks, documentation, open-source projects, and blogs Why Join? Fully remote working with flexibility (Northern Ireland wide) Competitive base salary (£90-100k) 10% bonus Work with modern, cloud-native technologies on impactful projects Strong culture of autonomy, innovation, and collaboration