Software Engineer Internship, Weaviate
Summer 2025
More information about location
Open-source vector search engine
Job no longer available
Open-source vector search engine
21-100 employees
Job no longer available
More information about location
21-100 employees
Company mission
To create open source, AI-first infrastructure for the next wave of software development.
Role
Who you are
- For Core Database Development: Experience with statically typed languages such as C/C++, Go, Rust, or similar. (Note that Weaviate is written in Go; prior Go experience is preferred but not strictly required)
- For ML Research and Fine-tuning: Proficiency in Python, experience with PyTorch, and knowledge of CUDA
- Preferred Coursework: Database-related courses, Information-Retrieval-related courses, System Design, adv. Algos and Data structures
- A strong sense of ownership of your work, ability to work independently
- Kindness and excellent communication skills
- For U.S. Citizens:
- You must have all necessary documentation to be legally employed in the United States (e.g. Social Security Number) before commencing the internship
- For Foreign Students:
- You must have a valid student visa (e.g. F-1) in place at the time of application
- You are responsible for securing the appropriate work authorization (e.g. CPT, OPT) prior to the start of your internship. This includes coordinating with your educational institution to obtain the necessary approvals and documentation
- Please note that employment is contingent upon receiving proper authorization, and you will be required to provide proof of work eligibility before commencing the internship
What the job involves
- Paid, full-time internship at one of the most exciting companies in the database and AI space
- Post-internship career opportunities at Weaviate
- Make meaningful contributions that change how our users use Weaviate (see example project list below)
- Work directly with experts in Databases, AI, IR, etc.Low-level work possible: Weaviate’s core components (LSM stores, vector indexes, filtering and inverted indexes, networking, replication, etc.) are all written in-house
- Work entirely remotely from anywhere in the world
- Participate in company off-site events during your internship (Note: There is no guarantee that an off-site event will happen during the course of the internship. If it does, you’re part of it)
- Example projects:
- Improve Filter performance at scale (roaring bitmaps, inverted indexes, etc)
- Design and implement new index types that can be used with various storage backends (NVMe, network disk, cloud storage)
- Optimize hot-path code in the storage engine (Memory allocations and usage, Disk I/O, SIMD, etc.)
- Use start-of-the-art data structures to improve the performance and storage footprint of existing index types
- Improve inter-node network communication by using lightweight and optimized network protocols
- Vector Indexes / Graph Algorithms
- Improve query performance by (approximating distances via FINGER, early exit conditions, etc.)
- Improve range filter performance for vector search (time-series vector search, SeRF, etc)Improve general filtered vector-search performance (ACORN, etc.)
- Design and implement a new cloud-storage-based vector index for specific scenarios
- Information Retrieval, RAG, End-to-end applications
- Fine-tune embedding models and rerankers for specific domains (adaptive fine-tuning, synthetic data generation, ColBERT)
- Video embedding models and natural language search over video. (CLIP, contrastive learning)
- Develop new hybrid recommendations systems, combining collaborative filtering with content-based approaches (autoencoders, GNN, Matrix completion)
- Optimize Model Inference (vLLM, TensorRT)
- Weaviate as a library: Investigate and develop library usage of Weaviate via focusing on embedding Weaviate into the popular Golang-based Ollama inference service
Application process
- Step 1: Introduction chat
- Step 2: Meet your future team lead
- Step 3: Your challenge and follow-up interview
- Step 4: Are we a cultural fit?
Our take
Vector search, powered by machine learning, is able to capture the context of unstructured data, and find similar data using approximate nearing neighbour algorithms. Weaviate, founded in 2019, is an open-source vector search engine. With it, users can index billions of data objects to search through, and find the right results quicker and more effectively.
Weaviate delivers high-speed similarity search over raw vectors or data objects. Its hybrid search allows users to combine keyword-based search with vector search, and its generative search enabled them to combine generative models with their data. A handful of companies are beginning to deliver vector search, but Weaviate’s open-source-first attitude and pay-as-you-grow offerings are what makes it stand out.
Previously known as SeMi Technologies, Weaviate has seen significant interest and investment. The company has said that funds received will help it work towards making Weaviate the standard in open-source vector search, allowing it to expand its teams, user community, and list of partners, as well as refining its ML models and modules.
Kirsty
Company Specialist
Insights
Some candidates hear
back within 2 weeks
Company
Company benefits
- Work equipment - This includes a shiny new MacBook and a budget for (upgrading) your home or digital office.
- Flexible remote work - This includes working from anywhere, decide which work rhythm and balance works for you, and you have flexibility when taking time off.
- Company trips - With a global distributed team, we can treat ourselves to meet each other in person in the most beautiful places e.g. Italy.
Company values
- Be Kind: Our people make working at Weaviate a joy. Their kindness is the magic, which contributes to our success.
- Work together as one: We combine our different perspectives and support each other to move forward.
- Strive for excellence: We surpass expectations and do what's best for our customers and our community.
- Encourage transparency: Be transparent - by default. We share our knowledge and expertise with our colleagues and community.
- Inspire trust: We explore new technologies and the world around us. As optimists, we expect the best in people.
Company HQ
Jodenbuurt, Amsterdam, Netherlands
Articles
Leadership
Bob van Luijt
(Co-Founder & CEO)Chairman of the Creative Software Foundation. Founded Kubrickology Innovations.
Etienne Dilocker
(Co-Founder & CTO)Managing Dirctor of Dilocker Software Engineering & Consulting.
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