AI Developer / Full-Stack Team Wanted – Build a Complete Swiss Tax Platform

AI DEVELOPER / FULL-STACK TEAM WANTED – SWISS TAX PLATFORM 🇨🇭 I am looking for an experienced AI / Full-Stack developer or development team to build SunTax, a complete AI-powered Swiss tax return platform. IMPORTANT: This is NOT a mockup, demo, simple ChatGPT wrapper or basic MVP. I am looking for someone who can build a real, secure and production-ready application that can eventually be launched commercially. INITIAL LAUNCH – 7 CANTONS The first version should support: - Zürich - Zug - Schwyz - St. Gallen - Aargau - Bern - Basel-Stadt The architecture should be designed so additional cantons, municipalities and future tax years can be added without rebuilding the entire system. CORE WORKFLOW: The goal is maximum automation. User: 1. Creates an account 2. Selects canton, municipality and tax year 3. Uploads all tax documents 4. AI automatically reads and classifies the documents 5. Personal information is extracted automatically 6. Income, assets, debts, securities, property and deductions are combined 7. Duplicate/conflicting information is detected 8. Missing information is identified 9. User is asked only questions that cannot be determined from the documents 10. Applicable deductions are automatically identified 11. Securities are automatically processed 12. Taxes are calculated using deterministic tax rules 13. User reviews and corrects the completed tax return 14. User confirms responsibility 15. The final tax return is prepared 16. Electronic submission should be implemented where officially and technically possible; otherwise the most automated official export/submission method should be used. DOCUMENT PROCESSING: Support documents such as: - Salary certificates - Previous tax returns and tax assessments - Bank statements - Securities/broker documents - Pillar 3a - Insurance - Mortgages and debts - Real estate documents - Donations - Medical expenses - Childcare - Education/training - Foreign documents - Crypto documents The system should automatically recognize information such as name, address, AHV number, date of birth, marital status, employer, income, assets etc. and combine information from multiple documents. TAX ENGINE: Tax calculations must NOT be generated by an LLM guessing the answer. Use deterministic, structured tax rules: Federal → Canton → Municipality → Tax Year → Rules / Deductions / Rates The system should support 2025/2026 initially and be designed for future tax years. DEDUCTIONS: Automatically identify and calculate applicable deductions, including where relevant: - Commuting - Public transport / car - Work expenses - Meals - Home office - Work equipment - Education - Insurance - Medical expenses - Pillar 3a - Donations - Children - Childcare - Alimony/support - Mortgage/debt interest - Property maintenance - Other applicable deductions Where possible, the system should calculate information such as commuting distance automatically from known addresses. SECURITIES: - ISIN recognition - Valor number recognition - Stocks - ETFs - Bonds - Funds - Dividends - Swiss and foreign securities - Multiple banks/brokers - ICTax integration where technically available SECURITY & PRIVACY: This platform handles highly sensitive Swiss financial and personal information. The software therefore needs professional security architecture, including: - Secure authentication - Strict user-data separation - Encryption - Secure document storage - Secure APIs - Access control - Protected API keys/secrets - Secure database/server configuration - Backups - Secure deletion/retention - Proper logging and error handling - Privacy-focused AI processing - No customer data used for AI training Local/private AI such as Ollama should be considered where practical. CANTON / GOVERNMENT INTEGRATIONS: I will handle the official canton approvals, permissions, licenses and restricted access. The developer must support me technically by explaining what APIs, documentation, credentials, certificates, test data or other technical requirements are needed. Once I obtain the required access, the developer will integrate and test the corresponding systems. LAUNCH-READY DELIVERY: At the end of development, I want a complete working product, not just source code. This should include: - Frontend - Backend - Database - AI/OCR - Tax engine - Integrations - Authentication - Document storage - Production deployment - Hosting/server setup guidance - Domain/DNS setup guidance - Admin access - GitHub/source code - Server/database access - API credentials under my control - Backups - Documentation - Testing - Final handover External costs such as hosting, paid APIs, licenses, official certificates, legal advice, tax specialists or security audits are separate. COLLABORATION: I will provide or help obtain official Swiss tax documents, examples, test cases and legally usable data where necessary. Public web information alone may not be sufficient to build and test the complete system, so the developer should be comfortable working with official Swiss tax documentation and real-world filing workflows. DEVELOPER REQUIREMENTS: I am NOT looking for someone who is just starting freelancing. Please apply only if you can demonstrate: - Proven experience with AI/document-processing systems - Strong Full-Stack development experience - Experience building production applications - Experience with financial, tax, accounting or similarly sensitive systems is highly preferred - Understanding of secure software architecture - Ability to build deterministic calculation engines - Ability to work with APIs and external systems Please provide: - Your portfolio - GitHub - Previous relevant projects - Client/project history - Proof of previous completed work - Any relevant AI, tax, finance or document-processing experience I will NOT consider applicants who have no verifiable previous work, no references/portfolio, or no demonstrated experience. BUDGET: I do not want to set an unrealistic fixed budget. Please provide me with a realistic total budget for building the complete system described above for the initial 7-canton launch. Please clearly separate: 1. Development cost 2. External/third-party costs 3. Optional future costs Also provide a realistic estimated timeline and explain what would be delivered at each milestone. I am looking for a serious long-term developer/technical partner who can build SunTax properly and potentially continue developing the platform as we expand to all 26 Swiss cantons.