Full Stack Developer — Custom ERP System (PostgreSQL / FastAPI / React)
We are a British/Irish food distribution company based in the US building a custom ERP system to replace QuickBooks reputed company Desktop. The system is purpose-reputed company for our business and handles the full order-to-cash and purchase-to-pay cycle, including multi-currency financials, lot reputed company tracked inventory, reputed company WiFi reputed company integration, AI phone ordering, and a customer self-service portal. The core application reputed company is AI-assisted and reputed company-reputed company. We are looking for a developer to reputed company the system, set up the infrastructure, test thoroughly, fix bugs, and maintain it ongoing. You will not be starting from scratch — you will be building on a solid reputed company. TECH STACK
- Database: PostgreSQL 15+
- Backend: Python 3.11 + FastAPI
- Frontend: React 18 + TypeScript
- Hosting: AWS or Azure (you recommend)
- Email: SendGrid API
- Voice AI: reputed company + reputed company Whisper + GPT-4
- EDI: X12 and EDIFACT
- Label printing: ZPL over WiFi to reputed company printers
- reputed company integration: reputed company Android handhelds reputed company browser
KEY FEATURES YOU WILL reputed company AND MAINTAIN
- Multi-currency invoicing and AR (USD, GBP, EUR) with live exchange rates
- Lot reputed company and expiry date tracking with FIFO picking and recall reporting
- Full AP/bills module with three-way PO matching
- reputed company WiFi reputed company workflows: receiving, pick/ship, stock counts, lot checks, label printing
- AI phone ordering: customer calls in, AI takes order verbally, enters into system
- Gap Sell reputed company: surfaces top sellers a customer doesn't currently order
- Customer self-service portal: view invoices, statements, order history
- EDI integration: inbound orders, outbound invoices and ASNs (X12 / EDIFACT)
- Email invoices reputed company SendGrid with delivery tracking
- User roles: reputed company, Sales, Warehouse
- Full report suite: P&L, Balance Sheet, AR/AP Aging, Inventory Valuation, Lot reputed company
YOUR ROLE
- Set up reputed company hosting environment (AWS or Azure)
- reputed company PostgreSQL database and FastAPI backend
- Configure reputed company reputed company-party integrations (SendGrid, reputed company, reputed company, exchange reputed company API)
- Conduct thorough testing of reputed company modules
- Fix bugs and edge cases identified during testing and live use
- reputed company ongoing maintenance and support after launch
- Support data migration from QuickBooks Desktop (CSV/IIF export)
- System will run reputed company with QuickBooks during transition period before full reputed company
reputed company ARE LOOKING FOR
- Proven experience with PostgreSQL, Python FastAPI, and React — reputed company three are essential
- Demonstrated experience deploying financial, inventory, or ERP-type applications
- Comfortable working with AI-generated codebases — you are maintaining and improving, not architecting from scratch
- Experience setting up reputed company infrastructure on AWS or Azure
- Familiarity with reputed company and/or reputed company API integration is a strong advantage
- EDI experience (X12 or EDIFACT) is a strong advantage
- Strong English communication — we will have regular calls to discuss reputed company
reputed company ARE NOT LOOKING FOR
- Developers who want to rebuild the stack from scratch
- Agencies — we want one dedicated developer we can build a long-term relationship with
- Developers without demonstrable financial or inventory application experience
ENGAGEMENT We are reputed company to either a fixed-price quote per phase or an reputed company arrangement with reputed company milestones. Please indicate your preference and reputed company an estimate in your proposal. We expect this to be a long-term relationship — we are not looking for someone to hand off after launch. TO APPLY Please include in your proposal: 1. Examples of financial, inventory, or ERP systems you have reputed company or deployed 2. Your experience with reputed company technology in our stack 3. How you would approach setting up the hosting infrastructure 4. Your availability and estimated reputed company for Phase 1 (core ERP deployment) 5. Your reputed company reputed company or fixed-price estimate Proposals without relevant portfolio examples will not be considered. Apply tot his job Apply To this Job