Logan
From South Korea (UTC-4)
Logan – Python, Typescript, AI agent development
Logan is a Senior Frontend Engineer with strong full-stack and product experience and 10+ years of working with startups, specializing in React, TypeScript, and end-to-end product development. He has built and launched products from the ground up, combining strong frontend expertise with experience across Python, backend development, AWS, and AI/LLM technologies. Logan demonstrates strong product ownership, clear communication, and a practical approach to engineering decisions. He is particularly well suited for greenfield and founder-facing projects where adaptability and user experience are key.
10 years of commercial experience in
Main technologies
Additional skills
Direct hire
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Let’s get started today!Experience Highlights
Senior Software Engineer
AI-powered financial research platform that uses SEC filings to analyze companies and generate interactive company relationship graphs.


- Built the product end-to-end, from architecture and implementation through deployment;
- Developed a RAG-powered financial analysis agent using LangGraph, Mem0, and SEC filing data;
- Built the FastAPI backend and React frontend for interactive financial analysis and company relationship visualization.
Senior Software Engineer
Live solar generation forecasting platform providing day-ahead forecasts for utility-scale CAISO solar plants and benchmarking predictions against CAISO’s own forecasts.

- Built and deployed the forecasting platform end-to-end, from data processing and model development through production delivery;
- Developed day-ahead solar generation forecasting models using LightGBM and HRRR weather data;
- Built an automated pipeline to generate and publish daily forecasts for utility-scale solar plants;
- Implemented performance benchmarking against CAISO’s own generation forecasts;
- Developed a public web application for visualizing and comparing forecast results.
Senior Software Engineer
AI-powered microbiome health platform providing at-home gut health testing and personalized insights based on scientific research.

- Engineered MLOps infrastructure on AWS, integrating laboratory data with proprietary AI models to generate personalized health reports;
- Architected and implemented the end-to-end technology stack for the microbiome health MVP as a founding engineer, spanning frontend applications, APIs, databases, and cloud infrastructure.
Senior Software Engineer
Mobile workforce platform connecting hourly workers with flexible shifts and work opportunities from enterprise clients.
- Delivered new features and ongoing improvements for a production React Native application serving thousands of active workers across iOS and Android;
- Built and iterated on shift discovery, claiming, and scheduling workflows;
- Implemented location-based clock-in/out and shift verification functionality.
Senior Software Engineer
Mapping and fleet management platform for autonomous construction vehicles, supporting the monitoring and management of vehicle operations.
- Developed the mapping UI for site operators to draw and edit geofenced work zones, haul routes, and exclusion areas used directly by the vehicle autonomy stack;
- Built real-time fleet dashboard showing vehicle position, task status, and health telemetry across a site, streamed from vehicle onboard systems.
Senior Full-Stack Engineer
Browser-based live streaming and recording platform enabling content creators to host guests, customize broadcasts, and stream across multiple social platforms.

- Led development and UI design of the browser-based live streaming platform;
- Delivered high-throughput, real-time video products using WebRTC, HLS, and RTMP;
- Designed and built greenfield products for streamers and content creators.
Founder & Senior Software Engineer
Livestreaming education platform enabling independent teachers to host real-time remote classes and build online learning communities.

- Built the livestreaming education platform end-to-end;
- Grew and supported a learning community of 50+ teachers and 400+ students.