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! We are looking for a highly experienced Software Engineer IV with a deep background in cloud infrastructure, distributed systems design, and large-scale deployment architecture. You'll help architect and implement core infrastructure platforms that power high-availability services and enable developer velocity across the company. As a technical leader on the team, you'll design scalable, reliable systems using Python and Go, and collaborate cross-functionally to improve observability, performance, and deployment efficiency for our cloud-native applications.