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About Nexus
Nexus is building a world supercomputer by leveraging the latest advancements in AI, cryptography, engineering, and science. Our team of world-leading experts is developing and deploying the Nexus Layer 1 blockchain and Nexus zkVM (zero-knowledge virtual machine) in support of our mission to enable the Verifiable Internet.
Nexus raised $25M in Series A funding from Lightspeed, Pantera, Dragonfly, SV Angel, and more.
We are headquartered in San Francisco, and this role will be in-person with the rest of the Nexus team.
AI Software Engineer, Search
We're seeking an AI Software Engineer to join our Search team and build state-of-the-art information retrieval systems. You will work on neural search, ranking, and retrieval pipelines that power intelligent discovery across our platform. This role involves building systems that understand intent, relevance, and context at scale.
Responsibilities
Design and implement intelligent retrieval systems using deep learning and LLMs.
Build and optimize vector-based search pipelines and hybrid search
Analyze search performance metrics and iterate to improve user satisfaction.
Develop internal tools to support experimentation and deployment of new ranking methods.
Requirements
Strong background in information retrieval, natural language processing, or machine learning.
Experience with vector database sand search engines
Proficiency in Python and deep learning frameworks like PyTorch or TensorFlow.
Knowledge of ranking algorithms, embeddings, and LLM inference/integration.
Ability to write production-quality, scalable code.
Embrace AI as a core part of how you work, think, and build.
Bonus Points
Experience integrating search with agentic or generative AI systems.
Familiarity with personalization, contextual search, or multilingual retrieval.
Contributions to open-source search or IR toolkits.
Benefits
Competitive salary and generous equity compensation
Health insurance for employees and their dependents
Daily lunch and dinner provided at SF headquarters
Company-paid travel to events and conferences
Nexus is committed to diversity in our workforce and is proud to be an Equal Opportunity Employer (EEO).