Full Stack Engineer

Full Stack Developer - Loan Officer Hub / CRM (Mortgage Industry)

Belong Lending, a mortgage company based in the Detroit, MI area, is looking for an experienced full stack developer to take over and continue building our internal Loan Officer Hub / CRM platform.

The platform was built by a previous freelance developer with AI-assisted development, and is functional but has several features that need fixing and new integrations to build out.

Tech stack:

• Frontend:
  Next.js 16, React 19, Type Script
• Backend:
  NestJS, TypeORM, PostgreSQL (hosted on Neon)
• Infra:
  Vercel, Git Hub, Google Cloud, Microsoft Azure, AWS S3
• Integrations:
  Firebase (MFA), ARIVE API, UWM API, UWM Conditions API, Anthropic/Claude, plus a custom AI agent (Open Claw + Telegram, via MCP)

What you'll be doing:

• Fixing existing broken/partial features, including automations tied to the UWM and ARIVE APIs, pipeline display, and mass email/event dashboard functionality
• Building new integrations, including a webhooks-based lending activity dashboard, Outlook/Azure calendar sync for loan officers, an AI video editor, a realtor listing generator, and a Property Radar leads integration
• General UI/UX improvements across the platform
• Working directly with the business owner and reviewing/extending code from a prior developer and AI-assisted work

What we're looking for:

• Strong hands-on experience with NestJS (or comparable Node/Type Script backend frameworks) and React/Next.js
• Comfortable working with PostgreSQL/TypeORM and third-party API integrations
• Able to independently navigate and troubleshoot an existing codebase with limited documentation
• Bonus: experience in mortgage/lending, fintech, or with UWM specifically
• Bonus: exposure to LLM/AI agent integration (Claude, OpenAI, MCP, etc.)

Engagement:
Open to discussing hourly, fixed-price, or ongoing retainer depending on fit - flexible based on the right candidate.