[ 01 // HARD METRICS CASE STUDY ] · CLIENT: Confidential GovTech Venture [NDA] (Emerging Markets & Global) · ROLE: Lead Product Engineer & Full-Stack Architect · April 2026 – Present (Ongoing)

GovTech Platform: From Low-Code Validation to Next.js 14, Supabase & FastAPI LLM Architecture

Architecting a multi-party infrastructure governance platform for Public-Private Partnerships (PPP) in emerging markets.

VALIDATION OUTCOME High-Fidelity MVP Signed Off

STACK MIGRATION Webflow/Airtable → Next.js 14 + Supabase

AI PIPELINE FastAPI + LLM Legal Analysis

ASSET STREAMING Cloudflare R2 Direct Presigned URLs

[ 01. THE BUSINESS STAKE ]

The Commercial Challenge

Governments and private concessionaires in emerging markets struggle with opaque multi-decade infrastructure agreements, missing compliance records, and fragmented communications. The venture was founded to bring transparent, auditable governance to multi-million dollar Public-Private Partnerships (roads, energy, water). The business stake was immediate: the venture needed to prove the concept rapidly to institutional stakeholders, secure executive validation, and then transition without downtime into a bankable, high-security enterprise platform.

[ 02. SYSTEM ARCHITECTURE ]

Data Flow & Infrastructure Blueprint

[ Client / Browser (Next.js 14 App Router + Tailwind) ]
               │
               ├── (1. Direct Upload via Presigned URL) ──▶ [ Cloudflare R2 Edge Storage ]
               │                                                      │
               ├── (2. Auth & Relational ACID Queries) ───▶ [ Supabase / PostgreSQL (RLS) ]
               │                                                      │
               └── (3. Document Analysis Webhooks) ──────▶ [ Python / FastAPI LLM Microservice ]

[ 03. THE ENGINEERING HURDLE ]

Breaking Points & Architectural Solutions

In Phase 1, we orchestrated Webflow, Memberstack, Airtable, and Make.com to validate the core user journey in record time. However, as deal volume scaled, low-code bottlenecks surfaced: 1. API rate limits on Airtable blocked multi-party uploads of large engineering dossiers. 2. Native Webflow form file sizes were capped at a fraction of standard legal contract sizes. 3. Multi-role RBAC required strictly isolated data layers with cryptographic audit logs. To overcome this, I engineered custom Cloudflare Workers to intercept heavy file payloads and stream them directly into Cloudflare R2, bypassing all native low-code upload limits. Then, in Phase 2, I led the clean architectural migration to a full-stack Next.js 14 + Supabase architecture with strict Row-Level Security (RLS).

[ 04. QUANTIFIED BUSINESS OUTCOMES ]

Measurable Impact

▶ Delivered and validated the Phase 1 MVP on schedule, enabling executive buy-in.

▶ Eliminated 100% of third-party API rate limit bottlenecks by architecting a unified PostgreSQL database.

▶ Integrated an LLM microservice in Python/FastAPI to parse 100+ page concession contracts into structured milestone obligations in seconds.

[ 05. TECHNOLOGIES & TOOLS ]

Next.js 14 TypeScript Supabase (PostgreSQL) Cloudflare Workers Cloudflare R2 Python FastAPI Tailwind CSS Figma Design System

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