Full Stack Software Engineer (Node.js/React)

Applied Business Software, Inc.; San Mateo (CA); Hybrid; USD 150,000 - 170,000; Full time

Benefits offered by this job

Competitive compensation (Base: $150,0

401(k) matching

Wellness programs

Employee recognition programs

Team building & on-site amenities

Job summary

The Mortgage Office seeks a Full Stack Software Engineer (Node.js/React) to join our growing SaaS team in the San Mateo area. You will build core user experiences while contributing to backend services, aligning with our mission to deliver AI-native lending tools.

We require 3+ years in Node.js, TypeScript and React, with experience designing APIs (REST/GraphQL) and working with databases. The role offers a competitive salary range of 150,000–170,000 USD per year and hybrid work in San Mateo, CA.

Qualifications

• 3+ years of professional full-stack software engineering experience.
• Proficiency in TypeScript across backend and frontend.
• Extensive backend experience with Node.js, RESTful APIs, and GraphQL.
• Strong React experience with hooks, state management, and data handling.
• Experience with relational and/or NoSQL databases and schema design.
• Knowledge of frontend architecture, component patterns, and performance optimizations.
• Experience implementing authentication and authorization.
• Familiarity with performance optimization on frontend and backend.
• Ability to deliver end-to-end features from API to UI.

Responsibilities

• Develop backend services and APIs with Node.js/TypeScript.
• Build responsive frontend interfaces with React/TypeScript.
• Collaborate with backend team to define API contracts and ensure efficient data fetching patterns (REST or GraphQL).
• Work with designers and product managers to translate requirements into intuitive, polished user experiences.

Skills

TypeScript

Node.js

React

API design

Frontend performance

Tools

REST APIs

GraphQL

SQL/NoSQL databases

Webpack/Vite

Job description

Full Stack Software Engineer (Node.js/React)

About TMO,

The Mortgage Office is the most trusted loan management platform in private lending. Founded in 1978, we power the full loan lifecycle for over 1,100 lenders, including private money firms, CDFIs, nonprofits, and government agencies, servicing more than $190 billion in loans.

We're recognized as G2's #1 Loan Servicing Software and Capterra's Best Ease of Use. With offices in Huntington Beach and San Mateo, we're now building the next generation of AI-native lending tools, and hiring a Full Stack Software Engineer (Node.js/React) to help lead that work.

The Opportunity

We are seeking a Full-Stack Software Engineer with 3+ years of professional experience in Node.js, TypeScript, and React, who will build the core user experience of our application. This role will focus on developing high-quality, user-facing interfaces while also contributing to backend services that power our platform, supporting our continued growth as a SaaS business and strengthening internal processes, performance, and cross-team alignment.

What You'll Own

• Develop and maintain backend services and APIs using Node.js and TypeScript to support front-end functionality.
• Build responsive, type-safe frontend interfaces using React and TypeScript.
• Partner with the core backend team to define API contracts and ensure efficient data fetching patterns (REST or GraphQL) for the frontend application.
• Collaborate with designers and product managers to translate requirements into intuitive, polished user experiences.

What You Bring

Required

• 3+ years of professional, post-college software engineering experience as a full-stack developer, excluding academic projects and coursework.
• Strong proficiency in TypeScript across backend and frontend codebases, building and maintaining production-grade systems in a professional environment.
• Extensive experience developing backend services using Node.js, including RESTful APIs, GraphQL, and service-oriented or microservices architectures used in production.
• Solid experience with React for building scalable web applications, including component design, Hooks, state management, and asynchronous data handling.
• Hands-on experience working with relational and/or NoSQL databases, including schema design, migrations, and performance-conscious query development.
• Strong understanding of frontend architecture, including reusable component patterns, client-side data fetching, error handling, and rendering performance considerations.
• Experience implementing authentication and authorization flows across backend APIs and frontend applications.
• Familiarity with performance optimization on both frontend and backend, including efficient API design, caching strategies, and frontend rendering optimizations.
• Ability to deliver features end-to-end, from API and data model design through frontend integration and user experience

Preferred

• Experience with modern frontend tooling (Vite, Webpack, ESLint, Prettier).
• Familiarity with component libraries (e.g., Material UI, Tailwind CSS) to accelerate UI development.
• Proficient with database technologies (SQL or NoSQL) and writing server-side logic to support frontend requirements.
• Experience integrating complex APIs and visualizing data (e.g., using charting libraries or building interactive dashboards).
• Competitive compensation (Base: $150,000 - $170,000) + Bonus
• 401(k) matching
• Wellness programs
• Employee recognition programs
• Team building & on-site amenities

Life at TMO,

TMO pairs 45+ years of category leadership with a culture that's still hands-on and collaborative. Ideas flow freely, every team member has a voice, and we have fun while we build.

Our Values: DRIVE

• Data-Driven: numbers over opinions.
• Respect: high on empathy, low on ego.
• Initiative & Agency: don't wait to be told.
• Value to Customers: create value for them above all else.
• Evolve: progress over perfection.

The pay range for this role is:

150,000 - 170,000 USD per year (San Mateo, CA (Hybrid))