Software Engineer Intern
Build sophisticated web applications for AI-powered document processing. Join our founding team.
Location
Seoul, South Korea / Beijing, China
Position Type
Internship (Full-time)
Department
Engineering
Who We Are
Enterprise AI Foundry
Cortex AI is an enterprise AI foundry specializing in sophisticated AI agents for legacy system integration. We build intelligent solutions that connect AI capabilities to complex enterprise systems without requiring complete architectural rebuilds. Our focus is on delivering high-impact automation in industries with legacy infrastructure constraints, particularly the mortgage and financial services sectors.
📄Document Intelligence
We specialize in PDF and multi-file manipulation, enabling AI systems to understand, extract, and process complex documents with precision and scale.
🧠LLM-Powered Algorithms
We design sophisticated algorithms that leverage large language models for intelligent document analysis, classification, indexing, and categorization without requiring traditional machine learning pipelines.
⚡Frontend Excellence
Our frontend applications handle complex document workflows seamlessly, integrating PDF viewers, file manipulation, and real-time AI processing into elegant, performant user experiences.
🎯Legacy System Integration
We connect AI agents to complex enterprise systems like Encompass, Optimal Blue, and Blend, transforming legacy workflows without architectural disruption.
What You'll Do
Frontend Architecture
Design clean, performant web applications that handle complex document workflows, PDF viewing, annotation, and multi-file management.
File Processing Integration
Implement sophisticated file manipulation systems that parse, display, and process various formats including PDFs, images, and structured documents.
LLM Algorithm Design
Architect algorithms that leverage LLMs for intelligent document analysis, content extraction, classification, and sorting without traditional ML complexity.
Tool-Calling Systems
Build frontend components that support sophisticated AI tool-calling patterns for file indexing, categorization, and metadata extraction.
Performance Optimization
Optimize document handling for large files and batch processing; ensure smooth user experiences with heavy computational workloads and real-time AI inference.
Cross-Team Collaboration
Work closely with backend engineers and AI/ML specialists to integrate frontend solutions with AI agents and processing pipelines in production environments.
Skills & Experience
Required
Nice to Have
Your Path Forward
This internship is a pathway to a founding engineer role at Cortex. Exceptional performers will be considered for full-time positions with potential visa sponsorship and opportunities to grow within our rapidly expanding engineering team.
Why Join Cortex
🎓Learn Real Tech
Master modern frontend frameworks while working on production-scale AI applications. Gain hands-on experience with sophisticated document processing and LLM integration.
🚀High Impact Work
Your work directly powers AI solutions transforming the mortgage and financial services industries. See your code in production immediately.
👨💼Expert Mentorship
Learn from experienced founders and engineers with deep expertise in AI integration, enterprise systems, and building scalable applications.
🌏Seoul Tech Scene
Be part of Seoul's vibrant tech ecosystem while working on a Silicon Valley-focused company. Network with Korea's top engineering talent.