Software Engineer Intern - Data

Plus 2; Santa Clara (CA); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Free lunch

Unlimited snacks

401(k) plan

Competitive salary

Job summary

PlusAI, a Silicon Valley-based Physical AI company, seeks engineers to optimize image/video search infrastructure and build iterative, feedback-driven search features. You will work on scalable backend systems, integrating ML concepts, embeddings, and vector databases to improve relevance and performance.

The role involves cross-domain collaboration with ML and backend teams, handling large unstructured data, and delivering robust search capabilities for autonomous truck applications.

Qualifications

• Strong programming skills in Python, C++, Go, or Java.
• Experience building backend systems for large-scale data processing.
• Familiarity with image/video processing and vector embeddings.
• Knowledge of ML concepts related to search relevance and ranking.

Responsibilities

• Optimize search infrastructure and refactor indexing pipelines for efficiency.
• Build iterative search features using feedback signals to improve accuracy.
• Develop smart sampling strategies based on events, location, and conditions.
• Collaborate with ML and backend teams to ensure scalable search systems.
• Demonstrate understanding of ML concepts related to information retrieval.

Skills

Python

C++

Go

Java

Machine Learning

Image/Video processing

Tools

FAISS

Milvus

Elasticsearch

Vector databases

Job description

PlusAI is a Physical AI company pioneering AI-based virtual driver software for factory-built autonomous trucks. Headquartered in Silicon Valley with operations in the United States and Europe, Plus was named by Fast Company as one of the World’s Most Innovative Companies. Partners including TRATON GROUP’s Scania, MAN, and International brands, Hyundai Motor Company, Iveco Group, Bosch, and DSV are working with Plus to accelerate the deployment of next-generation autonomous trucks. If you’re ready to make a huge impact and drive the future of autonomy, Plus is looking for talented individuals to join its fast-growing teams.

Job Responsibilities & Qualifications

• Optimize Search Infrastructure: Analyze and refactor existing image and video search indexing pipelines to maximize computational efficiency and minimize operational costs.
• Build Iterative Search Features: Design and implement a feedback-loop mechanism that captures positive and negative signals from previous search rounds to dynamically refine and improve search accuracy.
• Develop Smart Sampling Strategies: Overhaul the indexing sampling strategy to intelligently select data based on contextual factors such as predefined critical events, geographic location, and surrounding environmental conditions.
• Cross-Domain Collaboration: Bridge the gap between machine learning models and backend infrastructure to ensure search systems are both highly accurate and horizontally scalable.
• Machine Learning Fundamentals: Solid understanding of ML concepts, particularly in areas related to search relevance, ranking algorithms, or information retrieval.
• Infrastructure & Backend Development: Strong programming proficiency (e.g., Python, C++, Go, or Java) with a focus on building, scaling, and maintaining robust backend infrastructure.
• Algorithm Optimization: Demonstrated ability to analyze code, system architecture, and data pipelines to improve execution speed and resource efficiency.
• Working with Large Datasets: Experience handling and processing high volumes of data, particularly unstructured formats like image and video files.
• Computer Vision Experience: Familiarity with image and video processing techniques, feature extraction, or working with vector embeddings.
• Active Learning & Relevance Feedback: Prior experience building human-in-the-loop systems, reinforcement learning, or systems that actively use user feedback to train or tune models.
• Search & Indexing Tools: Hands‑on experience with vector databases (e.g., FAISS, Milvus) or large‑scale search engines (e.g., Elasticsearch, Solr).
• Contextual Data Integration: Experience working with geospatial data (GIS), temporal event logging, or incorporating external metadata (like environmental factors) into datasets.

Opportunities at PlusAI

• Work, learn and grow in a highly future‑oriented, innovative and dynamic field.
• Wide range of opportunities for personal and professional development.
• Catered free lunch, unlimited snacks and beverages.
• Highly competitive salary and benefits package, including 401(k) plan.