Nikita K.

I ship complete products in weeks, not months: web apps, backends, mobile apps, or all three at once. 15 years of engineering, now working AI-native: a set of AI agents I run does the heavy lifting, I direct them and own every line. One engineer, the output of a team. WHAT I BUILD • Web apps: Next.js, React, TypeScript, Tailwind • Backends and APIs: Python (FastAPI), Node.js, Java (Spring Boot), PostgreSQL, Redis, REST, GraphQL, WebSocket • Mobile apps: Flutter, native iOS (Swift) and Android (Kotlin), with millions of downloads behind them • Delivery: AWS, Docker, GitHub Actions CI/CD, Nginx, App Store and Google Play releases (Fastlane), Firebase, Supabase, Sentry HOW I WORK • AI-native, end to end. My agents write the spec, build, test and review; I decide, verify and own the result. That is why I deliver what usually takes a team. • Visible progress from the first days: a working deployment early, then daily increments. CI/CD ships every merge to a live environment. • Quality you can hand to anyone: typed code, clean architecture, tests on every PR. My last production app held 99.9%+ crash-free users. • Clear written spec before building. PROOF OF SPEED • A full B2B SaaS built in 4 months: 50+ third-party integrations (ERP, MES, IoT), 100+ API endpoints, 150+ web pages. • A multi-tenant SaaS platform: isolated runtime, 100+ integrations, 5 companies on it and 1,000+ real tasks completed. • A telecom app (VoIP, SMS, chat, mobile money) on 4 platforms, launched publicly: 800+ CI builds, nightly releases, app start of 1 second. • A social app scaled to 1M+ users and 3M+ downloads; I built the entire real-time chat product. • A YC-backed productivity app. GOOD FIT FOR • An MVP or full product that has to exist in weeks • A web app, backend or mobile app someone else quoted months for • A mobile app plus its backend, end to end, published to both stores • A stuck or slow project that needs rescuing and finishing STACK Python (FastAPI, SQLAlchemy, Celery), Node.js, TypeScript, Java (Spring Boot), Next.js, React, Tailwind, Flutter/Dart, Swift, Kotlin, PostgreSQL, TimescaleDB, MongoDB, Redis, Kafka, AWS, Docker, GitHub Actions, Nginx, Firebase, Supabase, Fastlane, App Store Connect, Google Play Console, Sentry. Send me the brief and I will reply with a plan, a timeline and the first milestone.