Sr. Full Stack Software Engineer

Location: Hacienda Heights, CA; Glendale, CA

Department: Engineering

Role Overview:

We are seeking a Senior Full Stack Engineer to lead the development of new products at MOON. This is a hands-on engineering role that requires deep experience across front-end (React) and back-end (preferably .NET/C#, though strong backgrounds in other modern frameworks like Node.js or Python are welcome).

You will be responsible for architecting and building scalable, microservices-based applications that deliver exceptional user experiences. A key expectation is a strong willingness to leverage AI tools throughout the development process (for coding, testing, documentation, and automation) and to embed AI-powered capabilities directly into our products to create smarter, more efficient solutions for our customers.

This is a highly collaborative, customer-centric role. You will work closely with product, design, and other engineers to ensure our platform is intuitive, secure, and capable of integrating with a variety of external systems.

Key Responsibilities:

• Lead the design and implementation of full stack features, combining React front-end development with back-end services in .NET/C# (preferred) or other modern languages and frameworks (e.g., Node.js, Python).
• Architect and deliver scalable, microservices-based systems deployed on cloud platforms (AWS, Azure, GCP).
• Design and optimize data models and integrations with SQL (PostgreSQL, SQL Server) and NoSQL databases.
• Build and maintain robust APIs (REST, GraphQL) with secure authentication and authorization (OAuth2, SAML, tokens, API gateways).
• Apply AI-assisted development tools to improve coding speed, testing efficiency, and documentation quality.
• Collaborate with cross-functional teams (product, design, and customer-facing engineers) to deliver intuitive, reliable user experiences.
• Identify opportunities to embed AI and automation features into MOON’s products to drive innovation and customer value.
• Ensure high code quality, performance, and security across front-end and back-end systems.
• Mentor and support junior engineers, contributing to architectural decisions and best practices.

Qualifications and Skills:

• Bachelor’s degree in Computer Science, Engineering, or equivalent experience.
• 7+ years of professional experience in full stack software engineering.
• Strong expertise in React (hooks, context, state management, modern patterns).
• Proficiency in .NET/C# other modern frameworks such as Node.js or Python for back-end development.
• Hands-on experience designing and implementing microservices architectures.
• Strong work experience and knowledge of SQL databases (PostgreSQL, SQL Server) and with NoSQL systems.
• Deep understanding of API development and security (REST, GraphQL, OAuth2, JWT, API gateways).
• Experience with cloud platforms (Azure, AWS, GCP) and containerization (Docker, Kubernetes).
• Demonstrated ability to use AI tools extensively in development workflows (coding assistance, test generation, documentation) and to build AI-driven product features.
• Excellent problem-solving, architectural design, and communication skills.

• Excellent communication and teamwork skills.

• Practical experience working in Agile teams.

Benefits/Perks:

We believe in recognizing and rewarding our employees for a job well done. We offer growth potential for motivated individuals, competitive compensation, and a comprehensive benefits package, including:

• Medical, Dental, and Vision Insurance
• 401(k) Retirement Plan
• FSA and HSA 
• Paid Vacation, Holiday, Sick, Bereavement, and Personal Days
• Life Insurance
• 2 Monthly Work From Home Days
• Company Wide Incentive Program

Why Work Here?

We have a unique opportunity to change the business of business, working with the unreal advantage of an alpha customer with over 6000+ employees and 8 various business models to incubate a ground-breaking product.

How to Apply:

Interested candidates are invited to submit their resume and cover letter (optional). We will contact you shortly if we decide to move forward with your application.

Equal Opportunity Employer:

We are an equal-opportunity employer. We encourage candidates from all backgrounds to apply.

Join us if innovation and attention to detail drive everything you do. This role is an excellent opportunity for an ambitious Product professional eager to make a lasting impact on multiple platforms and grow with an organization at the forefront of transformation.

About the Company

About Moon

An ambitious and independent stealth SaaS company incubated by Home Organizers, a market leader with decades of proven success in designing and delivering exceptional, innovative home organization solutions through its subsidiaries Closet World, Closets by Design, Brio Water Technology, and others. Backed by their deep industry experience and a commitment to be Home Organizer’s critical SaaS provider for its 6000+ employees, our team is building innovative solutions to solve universal problems that most businesses face — yet are not addressed by a single, unified tool. 

Our mission is to transform the entrepreneurial experience and deliver operational excellence for businesses across the world through a unified platform supercharged with proprietary AI agents. We want to unleash the creativity of billions and inspire the world to dream big and build fast. We’re a rapidly growing team of forward-thinking and, most importantly, committed builders. We are driven by the opportunity to push boundaries, reimagine the foundations of human work, and shape tools that power the next generation of “business operations.” The way the world views and does business is changing, and we are committed to leading this change responsibly.