Product engineering
Projects
A portfolio of real product domains, architecture decisions and implementation work — presented as systems rather than a list of technologies.
Car wash SaaS & marketplace · Active product engineering
DudeWash
A multi-tenant platform for fixed-location and mobile car-wash businesses, covering operations, bookings, workforce and marketplace flows.
- Problem
- Unifies provider operations, scheduling, mobile service areas, customer bookings and commercial workflows in one domain model.
- Architecture
- Modular Monolith · DDD · CQRS · Vertical Slices · Multi-tenancy
Food compliance & HACCP · MVP domain development
FoodReg
A compliance-oriented platform that helps food businesses structure regulatory requirements, evidence, checks and readiness.
- Problem
- Turns fragmented regulatory obligations into traceable requirements, applicability rules, checks and findings.
- Architecture
- DDD · CQRS · Modular Monolith · Rule-oriented domain model
Regulated business compliance · Architecture and product development
RASM
A compliance-first B2B operational platform for lawful regulated adult-service businesses.
- Problem
- Models jurisdictions, licensing, workforce, operations and evidence so regulated actions remain lawful, privacy-aware and auditable.
- Architecture
- DDD · CQRS · Modular architecture · Effective-dated rules · Multi-tenancy
Multi-tenant AI gateway · Platform engineering
QWEN Hosting
A private shared AI backend that centralizes model access, tenant/application context, tools, RAG and observability.
- Problem
- Provides one governed AI gateway for multiple applications while keeping model/runtime choices replaceable and policy-driven.
- Architecture
- Multi-tenancy · AI Gateway · Model routing · Tools · RAG · Local-first inference