Software architect & full-stack engineer. I build production systems for healthcare — including LLM/RAG platforms that run fully on-premises, where no data may leave the perimeter.
Founded and sold a hotel smart-TV SaaS platform. Now run infrastructure and engineering inside a healthcare organization: requirements → architecture → code → CI/CD → monitoring → incident response.
| Project | What it is | Stack |
|---|---|---|
| gyxer-studio | Visual backend builder that generates production-ready NestJS applications. | TypeScript, NestJS |
| ai-combine | Self-hosted multi-agent system (SecOps / coding / general agents) with a hybrid LLM provider layer, RAG memory and a Telegram interface. | Pydantic AI, LiteLLM, LlamaIndex, Qdrant, aiogram |
| termloop | Spaced-repetition trainer for professional terminology — Telegram bot plus an MCP server. | Python, MCP |
| On-prem medical AI assistant closed source |
RAG knowledge assistant for ~300 physicians. Air-gapped inference on hospital hardware (Qwen2.5-72B, 4-bit), delivered as a Chrome MV3 extension rolled out via Active Directory GPO. | FastAPI, Qdrant, vLLM |
| Hotel smart-TV SaaS acquired |
Multi-tenant IPTV/hospitality platform — guest TV interface, hotel admin panel, content & billing. Built solo from zero to a commercial product, registered with Rospatent, sold under a multi-year contract. | Kotlin (Android TV), React, Vue 3, NestJS, PostgreSQL |
| Vaccination planning system closed source |
Immunization scheduling engine: patient plans computed on the fly from age, history and the active calendar. Regional calendars as an inheritable catalog chain, catch-up logic, sex- and age-scoped schedules, matching of legacy record codes to modern definitions. | TypeScript, tRPC, Prisma, PostgreSQL, Keycloak, Turborepo |
| Fintracker closed source |
Personal-finance product in a Telegram Mini App: overpayment analysis, early-repayment scenarios, deposit projections. Money math on integer minor units — annuity and differentiated amortization engines, no floats. | FastAPI, Vue 3, Telegram Mini App |
| zakupki-new private |
Procurement and contract registry: purchase requests, supplier and contract records, document storage. | TypeScript, NestJS, PostgreSQL |
| Corporate portal closed source |
Employee self-service portal and admin panel: AD SSO, payslips with ERP sync, document storage. | React, NestJS, MongoDB, GitLab CI |
| Languages | TypeScript · Python · Kotlin |
| Frontend | React · Vue 3 · Next.js · TanStack Query · Zustand · Redux · MUI / Ant Design |
| Backend | FastAPI · NestJS · Django · tRPC · Prisma · Pydantic / Zod |
| Data | PostgreSQL · MongoDB · Redis · Qdrant |
| AI / LLM | vLLM · LlamaIndex · Pydantic AI · LiteLLM · MCP |
| Infra | Docker · Kubernetes · Terraform · GitLab CI · Nginx · Keycloak |
| Observability | Prometheus · Loki · Grafana |
| Testing | Vitest · Jest · Cypress |
- AI in regulated environments — taking LLM/RAG systems from POC to production where data cannot leave the perimeter: on-prem inference, GPO rollout, access control.
- Delivery — GitLab CI, multi-stage Docker builds, automated migrations, one-click deploy and rollback.
- Operations — centralized monitoring and logging; root-cause analysis of multi-day infrastructure outages (virtualization, DR replication, UPS automation) and blameless postmortems.
- Design — DDD, service boundaries, REST/OpenAPI-first contracts, monorepos.
- Leadership — infrastructure and a team in healthcare: vendors, SLAs, platform migrations, security hardening.