Senior Software Engineer

We are seeking a passionate and experienced Backend Engineer with a strong track record of designing and implementing scalable reliable and high-performance backend systems. As part of one of our AI teams you will be responsible for building and evolving the core services and infrastructure that power our AI-driven products. 

This role involves architecting and delivering backend solutions that handle large-scale data processing real-time interactions and integration with multiple services. You will work closely with product infrastructure and frontend teams to ensure that our systems are robust efficient and capable of supporting rapid product growth. 

Because the position is cross-functional the ability to communicate complex technical concepts in a clear and pragmatic way is essential. You will thrive in a collaborative environment where your work directly enables innovative production-ready AI-powered experiences at scale. 

Responsibilities 

• 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. 
• Contribute to technical discussions share knowledge and help evolve best practices in backend and infra engineering. 

Qualifications :

• BSc/BEng or Masters in Computer Science (or equivalent)  
• 5 years of professional backend engineering experience 
• Proficient in at least one of those Java (17) Python   
• 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. 
• Curious mindset with an eagerness to learn and adapt 
• 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 

If youre excited about pushing the boundaries of Software Engineering and AI wed love to hear from you! Even if you dont meet every requirement we encourage you to apply; We value expertise passion and the drive to learn. We are looking for frontenders full-stack and backenders. 

Additional Information :

We are the pioneers and trailblazers of a global IT Market Category (DEX) that is shaping the future of how the world works giving our customers IT Teams total digital visibility across their enterprise. Our innovative solutions integrate real-time analytics automation and employee feedback across all endpoints. This enables our IT teams to solve complex technical challenges create ever more productive workplaces and deliver happy satisfied employees in the digital workplace.

With over 1000 employees across 5 continents Nexthink operates as One Team connecting collaborating and innovating to continuously grow. We call our employees Nexthinkers and our commitment to diversity inclusion and equity is second to none. We currently have over 75 nationalities working with us from all cultures and backgrounds speaking many different languages.

If you are looking for a change and like a nice atmosphere lots of challenges and having fun while working this is a great opportunity for you! Check what we offer:

• Permanent Contract and a competitive compensation package.
• Beautiful office 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.
• Fresh fruit cookies and soft drinks as well. 
•  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.

 
Please note that not all the benefits listed above are available for temporary contract and internship roles. To ensure you have the most up-to-date information we recommend checking with your Recruitment Partner. 

Remote Work :

No

Employment Type :

Full-time