Senior Backend Developer

ABOUT SINCH Sinch is pioneering the way the world communicates. More than 150,000 businesses -- including Google, Uber, PayPal, Visa, Tinder, and many others -- rely on Sinch's Customer Communications Cloud to power engaging customer experiences through mobile messaging, voice, and email. Whether you need to verify users or craft omnichannel campaigns, Sinch makes it easy. Our AI-infused Super Network, APIs, and applications ensure you can connect with your customers reliably and securely, at every step of their journey. At Sinch we "Dream Big", "Win Together", "Keep it simple", and "Make it Happen". These values are our foundation! DESCRIPTION Join our Messaging Provisioning Engineering team as a Backend Developer in Malmö. This is a hybrid role, with the team working together from the office three (3) days per week. You’ll collaborate in an agile, cross-functional environment to turn user stories into testable, maintainable systems that run at scale. It’s a hands-on role where you will design and build new features, APIs, and CI/CD pipelines from scratch. You will help raise the bar on engineering practices like test-driven development, designing performance, and building self-healing systems. Collaborate closely with Developers, Product Managers and Tech Leads to translate product needs into effective, high-quality technical solutions. Build and maintain clean, efficient, and scalable code that enhances system performance and user experience. Own your work end-to-end - proactively identify and resolve issues and take responsibility for monitoring and maintaining your software in production. Participate actively in code reviews and share your knowledge to help elevate team standards. Take initiative to lead projects or features, driving them from early concept through to successful delivery. REQUIREMENTS Minimum 5 years of professional software development experience, with a strong focus on backend development. Strong, hands-on experience with TypeScript/J