Senior Frontend React Engineer

We’re building the future of legal services.

Modern Family Law, a fast-growing national law firm specializing in family law, is seeking a Senior Frontend React Engineer.

We are building a new technology product for family law, where the quality of the user experience matters because clients and attorneys will rely on it for real legal workflows. This is a greenfield build integrating enterprise systems, payments, data and AI capabilities, and the frontend architecture established in this role will support the product as it grows.

What you will own

• Own the frontend architecture and implementation of the product in React and TypeScript, from shared components and application structure through production workflows.

• Translate product designs and interactive prototypes into production-ready user experiences, working closely with product and backend engineers to align design, workflow, and data requirements.

• Own frontend patterns for complex multi-step workflows, including forms, conditional logic, validation, autosave, resume, loading states, error handling and recovery.

• Partner with the Senior Backend API Engineer to define API contracts, data structures, error handling and clear client/server responsibilities.

• Establish component architecture, state-management patterns, routing, form strategy and frontend conventions that support a maintainable application.

• Build secure, role-aware exper