Senior Software Engineer

About this role

About Sinch Sweden AB

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! About the Team Chatlayer Product is made up of two teams — Platform & Integration and Flow Engine & Intelligence Integration — sharing a single product roadmap and backlog under Engineering Manager JR Reynolds. Together the organization includes around 10 engineers, two tech leads, a product manager, and a UX designer. The teams value honesty, growth, knowledge sharing, collaboration, ownership, and “being pirates” — a bias toward bold, resourceful action. Communication happens primarily through Slack and Teams, and we have a strong culture of transparent decision-making and discoverable collaboration. Where We’re Heading Chatlayer is building toward a future of conversations with control — where AI agents and deterministic workflows work in harmony to solve our customers’ problems. This means evolving from a traditional chatbot platform into an agentic orchestration system where intelligent automation is grounded by reliable, predictable flow execution. We’re looking for the right people to help us get there. About the Role We are looking for a Senior Software Engineer to help design, build, and scale Chatlayer’s conversational AI platform. You will work across a real-time, distributed system that handles text and voice interactions at scale — including WebSocket infrastructure, bot engine integrations, and platform services. This