Senior Front End Engineer (React/Next.js)

The Mortgage Office (Applied Business Software Inc.); Huntington Beach (CA); On-site; USD 150,000 - 165,000; Full time

Benefits offered by this job

Comprehensive health coverage

401(k) with company match

Generous PTO

Performance-based bonuses

Modern workspace with on-site amenities

Company Christmas party

Job summary

The Mortgage Office (Applied Business Software Inc.) is seeking a highly skilled senior software engineer in Huntington Beach, California. The ideal candidate will build scalable user experiences using React and Next.js, collaborating with cross-functional teams to enhance our lending platform.

This role requires over 5 years of experience in front-end development, with expertise in modern technologies such as TypeScript and MUI. Comprehensive health benefits and performance bonuses are offered, along with a competitive salary ranging from $150,000 to $165,000 per year.

Qualifications

• 5+ years of strong front-end engineering experience with deep expertise in React, Next.js, and TypeScript.
• Experienced in modern state management with Zustand and React Query.
• Proficient with MUI and building scalable design systems.

Responsibilities

• Architect and develop scalable web applications on Next.js and React.
• Collaborate with product and design teams to create impactful solutions.
• Lead code and design reviews and mentor junior engineers.

Skills

React

Next.js

TypeScript

Modern web application architecture

MUI (Material UI)

Component-based architecture

CSS

Responsive design

Problem-solving skills

Tools

Zustand

React Query

Claude CLI

Job description

About Applied Business Software, Inc.,

Applied Business Software, Inc., (ABS), the maker of The Mortgage Office®, is the industry leader in private lending and loan management technology. Since 1978, our software has powered thousands of lenders, including private money firms, municipalities, CDFIs, Tribal Nations, universities, franchisors, third‑party servicers and other non‑bank lenders, helping them streamline, automate, and scale their lending operations with confidence.

About the role

We are seeking a highly skilled, front‑end‑focused senior software engineer to join our dynamic development team. As a senior engineer you will be responsible for building beautiful, scalable, responsive user experiences using React and other latest front‑end technologies, while collaborating with cross‑functional teams. Our platform leverages Next.js, React, MUI, Zustand, React‑Query, and C#, MSSQL.

What you'll do

• Architect, develop, and continuously enhance scalable, high‑performing web applications built on Next.js and React that handle complex business workflows, with a focus on performance, maintainability, and user experience.
• Work with product and design teams to understand end‑user requirements and create solutions that impact our customers, borrowers, and internal users.
• Convert UX/UI concepts into functional prototypes and production‑ready code, leveraging reusable component libraries and MUI design systems following industry best practices.
• Lead code and design reviews, and mentor junior engineers, including establishing standards around AI‑assisted development workflows to ensure consistent code quality and velocity.
• Drive adoption of agentic development practices using tools like Claude CLI, structured markdown specs, and AI‑assisted code generation.
• Collaborate with QA to ensure comprehensive test coverage and assist in diagnosing and resolving issues, including leveraging AI tooling for faster root cause analysis.
• Partner closely with backend engineers to design and integrate reliable APIs, optimize front‑end‑back‑end data flows, and ensure seamless end‑to‑end application performance across the full web stack.

Qualifications

• 5+ years of strong front‑end engineering experience with deep expertise in React, Next.js, TypeScript, and modern web application architecture.
• Deep expertise in component‑based architecture, React hooks, and modern state management, hands‑on experience with Zustand, React Query, or similar lightweight state and data‑fetching libraries preferred.
• Proficiency with MUI (Material UI) and experience building, scaling, and maintaining reusable, composable design systems and component libraries.
• Strong understanding of end‑to‑end web application workflows, including front‑end‑back‑end integration, API‑driven development, authentication flows, performance optimization, and production‑grade application delivery.
• Comfort working in an AI‑assisted development environment, including prompt‑driven workflows, markdown‑based specs/documentation, and CLI tools such as Claude CLI or similar AI coding assistants.
• Solid understanding of modern CSS, responsive design, accessibility standards, and front‑end performance optimization techniques.
• Strong problem‑solving, technical communication, and analytical skills, with the ability to prioritize and execute effectively in a fast‑paced, collaborative environment.

Why Join Us?

• Comprehensive health, dental, and vision coverage.
• 401(k) with company funded match.
• Mission‑driven company with a 45+ year legacy and industry‑leading products trusted by thousands of lenders.
• Collaborative, supportive team known for long tenure, deep expertise, and a culture built on trust and integrity.
• Help modernize and evolve the leading platform in private lending technology.
• Beautiful Huntington Beach office with a tight‑knit culture.
• Competitive compensation and room for professional growth.
• Performance‑based bonuses.
• Generous PTO.
• Modern workspace with on‑site amenities.
• Awesome company Christmas party.

The pay range for this role is:

150,000 - 165,000 USD per year (Huntington Beach, CA)