2027 Summer Interns

2026 Summer Interns: open-source Software Development

At we help our users run Big data AI online.

We seek summer interns who are passionate about coding and solving real-world problems within Machine Learning performance UI LLMs use-case sample applications and operations of large systems on AWS and GCP. We use:

• C Java
• JavaScript/TypeScript Mantine React FastHTML
• Go Python
• ONNX LangChain Huggingface
• Podman Docker

We code using Mac or Linux laptops using tools of our own choice. Everything we do is auto-tested and released to DockerHub daily.

Join our summer of 2026 intern team to work on a popular open-source project - has 10M downloads and is rapidly growing. Our summer interns always write code and we release it with this - this is your way to make a change!

The 2025 intern projects are not yet set in stone - we try to adapt to the passions of our interns and this space moves so fast. You are welcome to suggest and work on projects that you can build on in your master thesis or continue part-time with us. Ideas:

• Use a Large Language Model to generate data for automated tuning of search and recommendation use cases.
• Build user interfaces using Mantine/TypeScript or FastHTML/Python to manage large clusters of nodes.
• Build tools in JavaScript/Python for detailed trace analysis of millisecond query performance with performance optimization hints.
• Implement an automated relevance toolkit for Hybrid Search train models to balance ranking profiles: BM25 vector search
• Use LangChain or Vercel AI SDK with Vespa and build a full-stack demo application to implement Retrieval Augmented Generation like .
• Implement case studies using Jupyter Notebooks with great-looking graphics animations code and text. Work on our Python APIs.
• Implement a full-stack vector-search sample application using GCP Kubernetes and .
• Develop a full performance testing suite using Grafana Cloud k6.
• Build a Vespa API in Go for use in AWS Lambdas / GCP functions for data access queries and management.

Minimum Qualifications

Computer Science (or similar) student. Experience with one of:

• Java
• C
• JavaScript
• Go
• Python

Bonus:

• Familiarity with performance measurement analysis and tuning methodologies
• Knowledge/experience with GCP AWS Azure

About

Vespa is a fully featured search engine and vector database. It supports vector search (ANN) lexical search and search in structured data all in the same query. Integrated machine-learned model inference allows you to apply AI to make sense of your data in real time. Together with Vespas proven scaling and high availability this empowers you to create production-ready search applications at any scale and with any combination of features.

Recommendation personalization and targeting involve evaluating recommender models over content items to select the best ones. Vespa lets you build applications that do this online typically combining fast vector search and filtering with evaluation of machine-learned models over the items. This makes it possible to make recommendations specifically for each user or situation using utterly up-to-date information.

The developer team is located in Trondheim Norway. Our users and customers are #1 in e-commerce content and financial services globally.

Please attach university transcripts for our evaluation. Apply before December 13th 2026.

Read more about our internships at !

Required Experience:

Junior IC