Full Stack Developer, AI-Native

🕒 August 28

🏄 California – Remote

🏄 California – Remote

💵 $90k - $130k / year

⏰ Full Time

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 0%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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JMAC Lending

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 1998

💸 Finance

🏦 Banking

Finance • Banking

JMAC Lending is a financial services company specializing in wholesale and correspondent lending. For over 27 years, JMAC Lending has supported clients in building their businesses and achieving successful outcomes with a focus on strength, stability, knowledge, and confidence. The company positions itself as a comprehensive solution for lending needs, offering quick and efficient loan closing processes and outstanding customer service. Client testimonials frequently praise JMAC Lending for its responsive team and efficient, smooth loan transactions.

📋 Description

• Build and maintain internal and partner-facing applications, including the broker portal, dashboards, and workflow tools • Develop front-end applications using React, Next.js, TypeScript, and Tailwind CSS • Own interaction and visual quality, including layout, states, empty and error cases, responsiveness, and accessibility • Develop back-end services and APIs using Azure Functions and Node.js/TypeScript, with Python or C#/.NET for specific services • Work in Postgres through an ORM, writing queries and evolving schemas • Build AI-powered features with real-time streaming responses and maintain their correctness as prompts, models, and knowledge bases change • Help build tooling that enables AI assistants and agents to securely operate internal systems and data • Implement role-based access control, audit logging, and input validation • Write tested, reviewed code and follow version control, CI/CD, and code review practices • Design and maintain integrations between internal systems, the loan origination system, and third-party e-sign and email platforms • Build, monitor, and optimize workflow automations using Azure Logic Apps, Power Automate, and low-code tools • Maintain mortgage-industry data governance, security, and compliance requirements • Triage support tickets, fix bugs, monitor application health, and coordinate releases • Own assigned problems end to end and remain accountable for shipped outcomes • Update architecture notes, API references, diagrams, changelog entries, and release notes

🎯 Requirements

• 3+ years building and shipping web applications, or equivalent demonstrable project experience • Portfolio, GitHub, work samples, or architecture walkthrough of a proprietary system • Ability to explain how built systems work and why design choices were made • Fluency with AI coding assistants such as Claude Code, Cursor, Codex, or similar, with full ownership of results • Comfort defining feature behavior through test cases and real-world feedback • Strong fundamentals in HTML, CSS, and TypeScript/JavaScript, with hands-on React • Back-end API experience in at least one of Node.js, C#, or Python • Working SQL and relational schema design; Postgres ideal • Git and pull-request workflows • Clear written and spoken communication across technical and business teams • Must be authorized to work in the United States • Company systems and borrower data may be accessed only from JMAC-provided, centrally managed equipment • Preferred, not required: Next.js App Router, Prisma or another ORM, or Supabase • Preferred, not required: Azure or Vercel • Preferred, not required: automated testing with Vitest or Jest and CI/CD pipelines • Preferred, not required: exposure to evaluating LLM or retrieval systems • Preferred, not required: Python for PDF/document processing or C#/.NET • Preferred, not required: real-time or streaming UIs using server-sent events, WebSockets, or similar • Preferred, not required: mortgage, fintech, or regulated-industry experience, or eagerness to learn the domain

🏖️ Benefits

• Comprehensive Health Care Plan (including Medical, Dental, and Vision) • Life Insurance options (Basic, Voluntary, and AD&D) • Generous Paid Time Off for Vacation and Holidays • Retirement Savings Plan (401k) • Short Term and Long Term Disability coverage • Support for Family Leave • Access to Wellness Resources • Annual discretionary bonus