Principal/Staff Software Engineer - Nexthink - Remote - Global

We are looking for a Principal/Staff Backend Software Engineer to lead the technical strategy, architecture, and implementation of our large-scale AI chat agent platform. This system is designed to support 20+ million users globally, making it one of the most ambitious backend initiatives at Nexthink. As a Principal/Staff Engineer, you will go beyond implementation: you will set technical direction, influence cross-team design decisions, and serve as a trusted advisor to both engineering leadership and product. You’ll tackle problems of scale, reliability, and performance while partnering with AI/ML, Infra, and Security teams to build production-ready AI experiences. This is a high-impact, high-ownership role where you’ll be entrusted to make foundational architectural decisions and mentor senior engineers, ensuring Nexthink’s AI systems are built to scale with the future. Responsibilities include defining and driving technical vision and architectural strategy for the AI chat backend platform, leading design of highly scalable, low-latency, distributed systems supporting 20M+ global users, and providing technical leadership across multiple teams. Qualifications include 10+ years of backend engineering experience, 3+ years in Staff or Principal roles, expertise in Java (17+), Python, or Node.js, cloud-native architectures (AWS or equivalent), Kubernetes/ECS, and containerized deployments. Nice to have skills include Java frameworks (Spring Boot, Micronaut), streaming platforms (Kafka, Pulsar, Flink, Spark), and experience with LLM-powered systems. The role offers a hybrid work model, competitive compensation, unlimited vacation, and various benefits.