Making systems behave .\

01 — payment infrastructure

Bridge

Multi-application billing and subscription middleware. Ingests Google Play and Creem webhooks, orchestrates lifecycle events, and dispatches cryptographically signed callbacks — cleanly decoupling monetization logic from business applications.

Architected for zero-downtime reliability: idempotent webhook processing, strict tenant isolation via PostgreSQL Row-Level Security (RLS), hashed API keys, and audit-ready data export and anonymization.

Rust · Axum · PostgreSQL · source code

02 — AI automation & tooling

Text Transform

High-throughput automated content pipeline for e-commerce and affiliate catalogs. Performs bulk rewrites and semantic normalization of Romanian product titles and descriptions using multi-provider LLMs with strict schema validation.

Engineered as an internal operational engine to eliminate hundreds of manual copywriting hours, featuring structured JSON outputs, prompt orchestration, and multi-model failover.

PHP · MySQL · Groq · OpenAI · demo video

03 — product concept

Maria App

Product exploration and audience validation platform for a conversational AI spiritual companion. Built to test audience engagement, conversational UX, privacy-conscious data collection, and automated waitlist onboarding.

Vite · Tailwind · Cloudflare Pages · live landing

04 — consulting & advisory

Areas of Practice

Available for selective consulting engagements, architecture reviews, and hands-on systems development:

• Backend & Systems Architecture: Designing robust services in Rust & modern stacks, database schema design, PostgreSQL RLS multitenancy, and fault-tolerant event handling.
• Payments & Webhook Engineering: Ingestion pipelines, idempotent state transitions, subscription lifecycle management, and platform billing bridges.
• Pragmatic AI Integration: Structured LLM workflows, automated batch transformations, and internal tooling that turns repetitive operational overhead into automated processes.