Data Scientist

Job Description Unleash is now part of Zendesk, and together we’re building intelligent, scalable platforms that bring AI-driven products directly to our customers’ workflows. We are located in the heart of Tel Aviv, in a hybrid model of 3 days a week from the office and seeking a Data Scientist to join our team. You will play a key role in developing and deploying the AI capabilities that power our agentic AI experience - from designing retrieval and ranking models to implementing them in production-grade systems. What You’ll Do Build & Deploy: Design, develop, and ship data-driven solutions that directly power our core AI search engine. Full-Stack Ownership: Own the entire lifecycle from initial data exploration and modeling to production rollout and real-time monitoring. Scale for Growth: Partner with our engineering team to ensure every deployment is scalable, reliable, and performant. Optimize Quality: Deep dive into data processing flows to uncover trends, improve output quality, and guide product strategy. Iterate & Refine: Constantly push the needle on model efficiency, system stability, and long-term maintainability. Collaborate: Work in a tight-knit, high-velocity R&D environment where your ideas turn into code in days, not months. Requirements Who You Are: Experience: 3–5 years as a Data Scientist (or similar role), with a proven track record of shipping models to production environments. Python Pro: Strong coding skills with a deep understanding of software engineering best practices (clean code, CI/CD, testing). DS Foundations: Deep theoretical and practical knowledge of Data Science models from classical machine learning (Trees, Boosting, Regression) to deep learning architectures. You know how to choose the right tool for the job, not just the trendiest one. Infrastructure Savvy: Comfortable with the "ops" side of data science hands-on experience with Docker, Kubernetes, and building scalable systems. Tooling: Proficient in the standard stack (Pandas, scikit-learn) and modern deep learning frameworks (PyTorch or TensorFlow). Cloud Native: Experienced in building and deploying within major cloud ecosystems (AWS, GCP, or Azure). Bonus Points (Nice to Have): Advanced RAG: Experience building and optimizing RAG (Retrieval-Augmented Generation) pipelines, including advanced retrieval strategies and reranking. Agentic Workflows: Familiarity with Agentic RAG architectures (using frameworks like LangChain, LlamaIndex, or CrewAI) to handle complex, multi-step reasoning tasks. Vector Infrastructure: Knowledge of vector databases (e.g., Pinecone, Milvus, Weaviate) and semantic search optimization. Why Zendesk Employee Services? You’ll be part of a high-impact R&D group within Zendesk, combining startup agility with enterprise scale, and building AI-centric platforms that directly improve how organizations and employees work every day. The intelligent heart of customer experience Zendesk software was built to bring a sense of calm to the chaotic world of customer service. Today we power billions of conversations with brands you know and love. Zendesk believes in offering our people a fulfilling and inclusive experience. Our hybrid way of working, enables us to purposefully come together in person, at one of our many Zendesk offices around the world, to connect, collaborate and learn whilst also giving our people the flexibility to work remotely for part of the week. As part of our commitment to fairness and transparency, we inform all applicants that artificial intelligence (AI) or automated decision systems may be used to screen or evaluate applications for this position, in accordance with Company guidelines and applicable law. Zendesk is an equal opportunity employer, and we’re proud of our ongoing efforts to foster global diversity, equity, & inclusion in the workplace. Individuals seeking employment and employees at Zendesk are considered without regard to race, color, religion, national origin, age, sex, gender, gender identity, gender expression, sexual orientation, marital status, medical condition, ancestry, disability, military or veteran status, or any other characteristic protected by applicable law. We are an AA/EEO/Veterans/Disabled employer. If you are based in the United States and would like more information about your EEO rights under the law, please click here. Zendesk endeavors to make reasonable accommodations for applicants with disabilities and disabled veterans pursuant to applicable federal and state law. If you are an individual with a disability and require a reasonable accommodation to submit this application, complete any pre-employment testing, or otherwise participate in the employee selection process, please send an e-mail to peopleandplaces@zendesk.com with your specific accommodation request.