Senior Full-Stack Developer (NestJS, React)

Intellectsoft, Київ, за кордоном

Що робити

End-to-End Feature Development: Design, build, and deploy full-stack capabilities across the NestJS API backend and modern React/React Native frontend surfaces.
Backend Architecture & Domain Logic: Develop modular NestJS domain services, RESTful APIs, OpenAPI specs, and resilient third-party integrations (Twilio, Klaviyo, Google Places/Maps, Attio CRM, Shopify).
Frontend Application Engineering: Build complex, high-density administrative interfaces in ReactJS (pnpm/Nx workspace, TanStack Query, typed contracts) and cross-platform mobile app components in React Native.
Database & Search: Implement relational schemas and query optimizations in Aurora PostgreSQL (TypeORM/Prisma), including spatial proximity search (PostGIS) and vector embedding indexes (pgvector for AI retrieval).
Security & RBAC Implementation: Enforce strict staff and member identity controls (AWS Cognito, Google Workspace SSO), resource/field-level authorization guards, and audit

5+ years of professional software engineering experience with TypeScript end-to-end across backend and frontend environments.
Backend Mastery: Strong production experience with NestJS (Modules, Guards, Interceptors, Pipes) and Node.js.
Frontend Mastery: Deep experience with ReactJS (hooks, state management, modern UI patterns) and React Native (iOS & Android).
PostgreSQL Expertise: Proven experience with relational database design, complex SQL queries, migrations, and ORMs (Prisma or TypeORM).
Advanced AI Usage & Vector Search: Proven experience working with LLM APIs / Providers (AWS Bedrock, OpenAI, Anthropic Claude), vector search databases (pgvector, Pinecone, or Qdrant), and RAG architecture.