Senior Backend Engineer - AI Team (Remote)

About the Role

We are seeking a passionate and experienced Senior Backend Engineer - AI Team (Remote) to join our innovative team at Nexthink. As a leader in digital employee experience management software, Nexthink provides IT leaders with unparalleled insights to proactively optimize digital experiences for over 18 million employees worldwide. In this role, you will design and implement scalable backend systems that power our AI-driven products, ensuring they are reliable and efficient.

What You'll Do

• Design, build, and scale distributed backend systems that serve millions of users.
• Drive end-to-end delivery of features: from 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 or Python, 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 that power AI-driven products and real-time interactions.
• Ensure resiliency, fault tolerance, and compliance in high-throughput environments.
• Collaborate with product managers, infrastructure engineers, and other teams to deliver production-ready systems.

Requirements

• BSc/BEng or Masters in Computer Science (or equivalent).
• 5+ years of professional backend engineering experience.
• Proficient in at least one of Java (17+), Python, or Node.JS.
• 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).
• Strong background in high availability systems, failover, and resiliency design.
• Excellent knowledge of observability practices: logging, monitoring, tracing, metrics.
• Strong communication skills in English, able to explain complex technical topics clearly.

Nice to Have

• Java frameworks knowledge (Micronaut, Spring).
• Python experience.
• Experience with distributed data systems (e.g., Redis, Apache Kafka).
• Exposure to LLM integration (prompting, evaluation, observability).
• Performance tuning and scaling experience in high-throughput environments.
• Familiarity with GitOps, CI/CD, IaC.

What We Offer

• Permanent Contract and a competitive compensation package.
• Beautiful office with a view of Lake Geneva, conveniently located next to the Prilly-Malley train station.
• Hybrid work model balancing office and remote work, with a structured approach for new hires to foster connections and onboarding.
• Flexible Hours and unlimited vacation (employees have unlimited paid time off on top of the 25 days of holidays we offer) plus 3 company-paid volunteer days.
• Free access to a fitness centre inside the building.
• Reimbursement of the half-fare travel card for public transport.
• Reimbursement up to 50% of the cost of French classes.
• Regular company and team events like Voluntary Days, Pizza talks, Team Building activities, hosting Meetups at the office, and more!
• Bonuses for referring successful hires after three months of continuous employment.
• We offer a relocation package to people who are coming from another country.