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Nexthink is seeking an experienced Senior Backend Engineer to design and build scalable, reliable, and high-performance backend systems for Nexthink Assist, an AI-native product. You will own significant backend components end-to-end, set technical direction, and navigate cross-team decisions with minimal oversight.
Key Responsibilities:
- Design, build, and scale distributed backend systems serving millions of users
- Drive end-to-end feature delivery: design, implementation, deployment, and monitoring
- Architect real-time, low-latency APIs and backend services for AI-driven conversational systems
- Develop cloud-native services in Java, ensuring reliability, performance, and scalability
- Work on infrastructure components including AWS-based deployments, containerization (Docker), and orchestration (Kubernetes/ECS)
- Build robust APIs and backend services powering AI-driven products and real-time interactions
- Ensure resiliency, fault tolerance, and compliance in high-throughput environments
- Collaborate with product managers, infrastructure engineers, and cross-functional teams
- Lead technical execution: break down complex requirements into actionable tasks, distribute work effectively, and unblock the team
- Mentor and grow junior and mid-level engineers, fostering a collaborative culture of continuous learning and technical excellence
- Serve as primary technical liaison for product managers and cross-functional partners, translating product vision into technical strategy
About Nexthink:
Nexthink is the leader in digital employee experience management software, providing IT leaders with unprecedented insight to diagnose and fix issues at scale. The company serves over 1,500 customers managing digital experiences for 25+ million employees. With over 1,200 employees across 5 continents and 9 offices worldwide, Nexthink operates as a collaborative, diverse organization committed to innovation.
Work Environment:
Hybrid model with a beautiful office overlooking Lake Geneva, conveniently located next to Prilly-Malley train station. The role offers flexible hours, unlimited vacation (plus 25 days of holidays), free fitness centre access, public transport reimbursement, and regular company and team events.
Requirements:
- 8+ years of professional backend engineering experience
- Proficient in modern Java (17+)
- Proven experience designing and scaling backend systems for millions of users or high-throughput real-time services
- Solid understanding of cloud-native architectures (AWS or similar), containerization (Docker), and orchestration (Kubernetes/ECS)
- Experience with distributed data systems (e.g., Redis, Apache Kafka)
- Exposure to LLM integration (prompting, evaluation, observability)
- Strong background in high availability systems, failover, and resiliency design
- Excellent knowledge of observability practices: logging, monitoring, tracing, metrics
- Strong English communication skills, able to explain complex technical topics clearly
- Curious mindset with eagerness to learn and adapt
Nice to Have:
- Java frameworks knowledge (Micronaut, Spring)
- Python experience
- Performance tuning and scaling experience in high-throughput environments
- Familiarity with GitOps, CI/CD, IaC
