Senior Frontend Engineer - React/TS for AI-Driven Legal

Modern Family Law; California; On-site; USD 130,000 - 145,000; Full time

Benefits offered by this job

Health Insurance

401(k) Plan

Paid Time Off

Short Term Disability

Long Term Disability

Dental Insurance

Vision Care

Life Insurance

Training & Development

Work From Anywhere

Job summary

Modern Family Law is seeking a Senior Frontend React Engineer to lead the frontend of a greenfield product for family law, using React and TypeScript. You will own architecture, implement complex workflows, and collaborate with product and backend teams to deliver secure, scalable UI experiences.

You will drive patterns for multi-step forms, accessibility, performance, and AI-enabled workflows, while mentoring a growing frontend team.

Qualifications

• Production experience building React and TypeScript applications with complex user workflows.
• Experience establishing frontend architecture for products with meaningful application state and significant integration with backend services.
• Strong knowledge of component architecture, state management, forms, routing, and maintainable frontend patterns.
• Experience building multi-step or workflow-based applications with validation, conditional logic, persistence, recovery, and clear error states.
• Understanding of frontend authentication flows and role-aware interfaces, including which controls must be enforced by backend services.
• Experience partnering with backend engineers to define API contracts and data structures.
• Strong accessibility, responsive design, browser compatibility, and frontend performance practices.
• Experience implementing automated frontend testing for critical components and user workflows.
• Ability to review code, establish frontend standards, and provide technical guidance to other frontend developers.
• Ability to work independently as the Senior Frontend React Engineer on a greenfield product and make sound architectural decisions.

Responsibilities

• Own the frontend architecture and implementation of the product in React and TypeScript, from shared components to production workflows.
• Translate designs into production-ready user experiences, collaborating with product and backend engineers to align design, workflow, and data requirements.
• Own frontend patterns for 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 experiences for clients and attorneys, with strong validation, clear user feedback, and accurate presentation of permissions and workflow state.
• Integrate AI-powered capabilities into product workflows, including how generated content, sources, confirmations, corrections, loading states and failures are presented to users.
• Own frontend performance, accessibility, responsive behavior, browser support and production quality throughout development.
• Establish testing practices for critical components and user workflows, including component, workflow and regression coverage.
• Review code, set frontend standards and provide technical guidance to the existing frontend developer as the team grows.

Skills

React

TypeScript

Frontend architecture

State management

Forms and routing

Accessibility

Performance

Automated testing

Code review

Independent work

Tools

Vite

Job description

Modern Family Law is seeking a Senior Frontend React Engineer to lead the frontend of a greenfield product for family law, using React and TypeScript. You will own architecture, implement complex workflows, and collaborate with product and backend teams to deliver secure, scalable UI experiences.

You will drive patterns for multi-step forms, accessibility, performance, and AI-enabled workflows, while mentoring a growing frontend team.