Internship in Belgrade

Perplexity is looking for a Backend/Infrastructure Engineer Intern to support our small, high-impact team building the systems that power our search experience. You will work closely with experienced engineers to help design, build, and operate robust infrastructure and backend services that keep Perplexity fast, reliable, and scalable. Internship program: 12 - 24 weeks, full-time, part-time, in-person in the Belgrade office. Responsibilities: Build and maintain infrastructure that supports high-performance search systems, with mentorship from senior engineers. Design internal tools and automation to improve developer workflows and operational efficiency. Support the design, deployment, and monitoring of cloud-native systems on AWS. Contribute to improving CI/CD pipelines, testing infrastructure, and release processes. Debug and optimize Linux-based services, containers, and backend systems. Contribute to product codebases, primarily using Rust, Go or C++. Qualifications: Working towards a degree in Computer Science, Engineering, or a related field, or equivalent practical experience. Familiarity with at least one programming language such as Go, Rust, or C/C++, through coursework or projects. Basic understanding or exposure to cloud infrastructure (e.g. AWS) and Linux systems is a plus, not a requirement. Interest in infrastructure, distributed systems, or backend engineering, with willingness to learn about CI/CD, monitoring, and performance. A proactive and curious learner

Perplexity is looking for a Search Machine Learning Engineer Intern to help build the next generation of advanced search technologies, with a focus on retrieval and ranking. You will work closely with experienced engineers to improve search quality, experiment with new models, and ship features that directly impact how users search and discover information. Internship program: 12 - 24 weeks, full-time, part-time, in-person in the Belgrade office. Responsibilities: Contribute to experiments that improve search quality through better models, data usage, and evaluation tools, under the guidance of senior engineers. Design and implement components of the search platform and model stack, including retrieval, ranking, and classification models. Train evaluating models (including LLM-based approaches) for retrieval, ranking, and classification tasks. Support deployment and monitoring of search and ranking models in a scalable and performant way. Help build and iterate on RAG pipelines for grounding and answer generation. Collaborate with Data, AI, Infrastructure and Product teams to deliver improvements quickly and learn best practices in production ML. Qualifications: Strong foundation in machine learning and statistics, with coursework or projects related to information retrieval, ranking, or recommender systems. Experience with Python and common ML frameworks (e.g. PyTorch, TensorFlow, JAX) through academic, open source, or personal projects. Familiarity with evaluating model qua

P-1452 At Databricks, we are passionate about helping data teams solve the world's toughest problems — from making the next mode of transportation a reality to accelerating the development of medical breakthroughs. We do this by building and running the world's best data and AI infrastructure platform so our customers can use deep data insights to improve their business. As a Product Management Intern, you will join a team that works diligently to understand and solve our customers' most challenging problems . You will learn how to be a successful PM at a high-growth enterprise technology company that operates at the important intersection of data and AI. As part of our 2027 intern cohort, you will have a dedicated manager and mentor as well as two mentors and connect with product managers, engineers, designers, account teams, other interns, and leaders from across the company. This is a 12 week paid summer internship program in either Amsterdam, Belgrade or Berlin. The impact you will have: Deeply understand customer problem space and establish the rails for viable solution space Prototype and test early ideas with customers and engineers to validate direction before the team commits to a build Work with engineers and designers to ship features on the Databricks platform Own your project end-to-end — design, build, launch, and iterate on feedback Build with scale, quality, and security in mind from day one What we look for: Pursuing a bachelor's or master's in computer