Search engineer

Company Description
Nexthink is the leader in digital employee experience management software. The company provides IT leaders with unprecedented insight allowing them to see, diagnose and fix issues at scale impacting employees anywhere, with any application or network, before employees notice the issue. As the first solution to allow IT to progress from reactive problem solving to proactive optimization, Nexthink enables its more than 1,300 customers to provide better digital experiences to more than 18 million employees. Dual headquartered in Lausanne, Switzerland and Boston, Massachusetts, Nexthink has 9 offices worldwide.
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Job Description
At Nexthink, we are reimagining how search, data, and AI-driven insights power the Product organization at scale. We are seeking a Senior Search Engineer to design and build intelligent search systems that enhance how users discover, access, and interact with data across our platform.
This role supports Nexthink's Product organization, serving a group of 30+ people. You will operate in a highly autonomous, foundational role, acting as the primary engineer responsible for search architecture, information retrieval systems, and ML-driven ranking solutions. You will own technical direction and execution, while partnering with stakeholders who identify and prioritize search and data-driven opportunities.
The role requires strong engineering judgment, end-to-end ownership, and comfort operating independently in a production environment with real business impact.
What you'll do

• Design, develop, and own search architectures and information retrieval systems, including indexing, ranking, and query understanding.
• Build and optimize search pipelines leveraging Machine Learning, NLP, and AI techniques (e.g., semantic search, embeddings, LLM-powered retrieval).
• Develop scalable data pipelines and data engineering workflows to process, enrich, and serve large-scale datasets for search.
• Implement and improve ranking algorithms, relevance tuning, and personalization strategies.
• Integrate search capabilities with distributed systems using APIs, event-driven architectures, and cloud services (AWS or similar).
• Monitor, evaluate, and iterate on search quality using metrics such as relevance, latency, and user engagement.
• Collaborate with Product, Data, and Engineering teams to define and prioritize search and discovery features.

Qualifications

• 5-7 years of experience in Software Engineering, with strong focus on Search, Information Retrieval, or Machine Learning systems.
• Strong background in Computer Science, Machine Learning, or related fields.
• Experience with search technologies (e.g., Elasticsearch, OpenSearch, Lucene, or similar).
• Solid understanding of Information Retrieval concepts (ranking, indexing, query processing, relevance).
• Experience with NLP techniques (tokenization, embeddings, transformers, semantic search).
• Experience in Data Engineering (data pipelines, ETL, large-scale data processing).
• Proficiency in Java (or similar backend languages) and distributed systems.
• Experience with RESTful APIs and messaging systems like Kafka is valued.
• Familiar with ML pipelines, experimentation, and evaluation frameworks.
• Experience with CI/CD, Docker, and Kubernetes is a plus.
• Strong communication and collaboration skills.
• Self-motivated, with strong ownership and organizational skills.
• Positive and solution-oriented mindset.
• Professional-level English (spoken and written).

Additional Information
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.
IIf 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.

• Health insurance through our partnership with ACKO, including OPD coverage for dental, vision, health check-ups, consultations, and pharmacy expenses.

• 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 22 days of holidays we offer). Plus, company-paid bank holidays (12), sick days (10-30), bereavement leave (5), and 3 days per year for volunteering.

• Free access to professional training platforms to explore your interests and enhance your skills.

• Stay covered against accidents, bodily injuries, and disabilities with our personal accident insurance policy, providing assurance with coverage up to three times your annual CTC.

• New mothers are entitled to up to 26 weeks of maternity leave, with the flexibility to use up to 8 weeks before the expected delivery and the remaining 18 weeks after. Birth fathers can take 6 weeks of paternity leave, while adoptive parents are eligible for 26 weeks of leave for mothers and 6 weeks for fathers.

• Under the Payment of Gratuity Act, receive gratuity at the rate of 15 days of basic pay for every completed year of service, provided you've been employed by the company for a minimum of 5 years. Gratuity is payable at retirement or resignation based on your last drawn basic pay.

• Bonuses for referring successful hires after three months of continuous employment.

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