Frontend Developer - Build an AI Analyst

About this role

At Modo Energy we’re building an AI-native platform for energy markets — combining LLM agents and real-time market data to create an AI analyst that can reason about complex energy systems.

Our frontend is where massive datasets, predictive models, and AI systems become usable. The stack is TypeScript, React, and Next.js in a modern monorepo architecture designed to support rapid feature development and AI-assisted engineering workflows.

The Role

We seek an experienced Front-End Engineer to lead the architectural evolution of our UI. As part of the AI team, you will design the core systems that power our platform. The AI Analyst "Ko" is an LLM-powered product embedded in the Modo Terminal that helps customers interrogate our data and research using natural language. Your main goal is to build a frontend architecture that supports rapid, AI-assisted development. You will define the design patterns, strong typing contracts and component abstractions that allow the wider engineering team to ship features quickly without compromising the architecture. By creating a robust, modular foundation you will ensure our codebase remains scalable and coherent.

Responsibilities

• Architectural Strategy: Lead the technical direction for our frontend monorepo. You will decide on state management, routing and module boundaries within Next.js and TypeScript to ensure long-term scalability and ease of maintenance.
• Component System Architecture: Design and develop our internal UI library (based on MUI). You will build reusable, strictly typed component abstractions that serve as the building blocks for the engineering team and AI agents.
• Performance Engineering: Build and improve high-performance, low-latency user interfaces. You will profile application performance, minimize re-renders and ensure the platform remains responsive under heavy data loads.
• Code Governance and Quality: Set the architectural patterns and coding standards that govern our development. You wil...