Senior Full-Stack Engineer

Chatoly Assistant; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Chatoly Assistant is seeking a senior frontend engineer to own product features from data model to production measurement. You will work across a dashboard and public-facing product surfaces, partnering directly with customers to solve practical problems while keeping the codebase clear, tested, and easy for the next engineer to extend.

You will deliver end-to-end features using TypeScript, React, and Next.js, design schemas, build workspace tools, and document trade-offs.

Qualifications

• At least five years of experience building production web applications.
• Deep practical experience with TypeScript.
• Strong React and Next.js skills, including sound judgment about the Next.js App Router.
• Comfort designing relational data models and the APIs that support them.
• A track record of owning features from an unclear initial problem through a measured launch.
• Clear written communication for decisions, documentation, and collaboration.

Responsibilities

• Deliver end-to-end features using TypeScript, React, and Next.js, from schema design to interaction details.
• Build workspace tools for managing knowledge sources, reviewing flagged conversations, and configuring handoff rules.
• Engage directly with customers to understand problems before translating them into product work.
• Maintain strong types, useful tests, and accurate documentation as the product evolves.
• Review code and document the reasoning and trade-offs behind durable technical decisions.
• Take ambiguous problems through implementation, release, and measurement of results.

Skills

5+ years frontend experience

Clear written communication

Problem solving

Attention to detail

Tools

TypeScript

React

Next.js

App Router

Relational data modeling

Testing

Job description

Role overview

Own product features from the underlying data model through the user interface and into production measurement. You will work across a dashboard and public-facing product surfaces, partnering directly with customers to solve practical problems while keeping the codebase clear, tested, and easy for the next engineer to extend.

Responsibilities

• Deliver end-to-end features using TypeScript, React, and Next.js, from schema design to interaction details.
• Build workspace tools for managing knowledge sources, reviewing flagged conversations, and configuring handoff rules.
• Engage directly with customers to understand problems before translating them into product work.
• Maintain strong types, useful tests, and accurate documentation as the product evolves.
• Review code and document the reasoning and trade-offs behind durable technical decisions.
• Take ambiguous problems through implementation, release, and measurement of results.

Requirements

• At least five years of experience building production web applications.
• Deep practical experience with TypeScript.
• Strong React and Next.js skills, including sound judgment about the Next.js App Router.
• Comfort designing relational data models and the APIs that support them.
• A track record of owning features from an unclear initial problem through a measured launch.
• Clear written communication for decisions, documentation, and collaboration.

Nice to have

• Experience with multi-tenant SaaS and the isolation challenges it creates.
• Experience building an embeddable widget or integrating a third‑party script.
• Familiarity with retrieval, evaluation, prompt versioning, or other LLM application patterns.