Full Stack Engineer (Next.js)

We're building Quickscope, an internal sales enablement tool for a fractional CFO firm that automates financial audit deck creation.

Currently, CFOs spend 3+ hours manually prepping each deck. Our goal is to reduce this to minutes through intelligent automation.

The challenge:

We have a functional Next.js prototype built with AI assistance. OAuth works, the dashboard is live, but critical features need production-ready implementation.

We need an experienced developer to audit the codebase and complete Phase 1.

GitHub: https://github.com/Staxx7/quickscope

Our stack includes:

• Frontend/Backend: Next.js 14+ (App Router), TypeScript
• Database: Supabase (PostgreSQL)
• Hosting: Vercel serverless functions
• APIs: QuickBooks Online OAuth 2.0
• AI: Claude Sonnet 4, GPT-4o

What needs building:Complete QuickBooks Data Extraction

• Currently pulls only summary data from P&L and Balance Sheet
• Need: Comprehensive extraction (transactions, customers, vendors, AR/AP aging, cash flow)
• Implement proper OAuth token refresh (tokens expire hourly)
• Handle rate limiting (500 req/min per company)

Enhanced AI Financial Analysis

• Current: Generic prompts missing critical insights
• Need: Sophisticated prompt engineering for sales intelligence extraction (decision makers, pain points, buying signals)
• Structured financial ratio analysis with actionable recommendations

Real Industry Benchmarking

• Current: Returns mock data
• Need: Integration with FRED API, Census Bureau, Bureau of Labor Statistics
• Intelligent industry classification and comparative analysis

Presentation Generation

• Current: Outputs JSON
• Need: Generate actual PowerPoint (.pptx) or PDF files
• Professional formatting with charts/visualizations
• Delivered within 2-3 minutes

Serverless Architecture

• Handle Vercel function timeouts for long-running operations
• Implement job queue patterns and progress tracking
• Robust error handling and retry logic

Your first week involves conducting a comprehensive code audit and delivering a technical specification document including:

• Current state assessment
• Prioritized issues and fixes
• Architecture improvement recommendations
• Phase 1 implementation timeline
• Testing strategy

Required experience includes:

• 5+ years full-stack development
• Expert TypeScript and Next.js (App Router)
• Production OAuth 2.0 implementations with financial APIs (QuickBooks, Xero, Plaid, Stripe, etc.)
• Supabase or PostgreSQL in production
• Serverless architecture patterns (Vercel, AWS Lambda)
• LLM API integration (OpenAI, Anthropic) in production applications
• Document generation experience (PowerPoint/PDF via code)

Strong plus:

• Fintech or accounting software background
• AI prompt engineering experience
• Has "rescued" AI-generated codebases before

Timeline: Immediate start.

Phase 1 runs 8-12 weeks to fully operational internal tool.

Phase 2 in Q2/Q3 2026+ for enterprise and go-to-market features.

This is a contract-to-hire opportunity, $50-100/hour based on experience.

Please apply if interested! We will send over more context and video breakdowns of the tool once you apply.

To reiterate: The first week involves conducting a comprehensive code audit and delivering a technical specification document.