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Intellectsoft
Development 5d ago

Full-Stack Software Engineer (TypeScript, NestJS, React, React Native)

Intellectsoft
PolandPoland
SpainSpain
UkraineUkraine
Full-time
Not Disclosed
Senior-Level

Job Description

Key Skills Required

Master these to land this role

React57mFree Trial ✨
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React Native1h 1mFree Trial ✨
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Node.js40mFree Trial ✨
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Next.js1h 32mFree Trial ✨
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AWSNestJSPostgreSQLTypeScript

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The platform integrates complex asynchronous communication pipelines (Email, SMS, WhatsApp), AI-assisted operations, spatial/vector databases, and strict security and role-based access controls.

Requirements

  • 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.
  • AWS & Infrastructure: Hands-on experience with managed AWS services (ECS Fargate, S3, Cognito, EventBridge, SQS, KMS, Secrets Manager).
  • State & Data Fetching: Proficiency with asynchronous data fetching libraries (e.g., TanStack Query / React Query), REST APIs, and typed API client generation.
  • Authentication & RBAC: Experience implementing multi-tenant auth workflows (OAuth2, JWTs, SSO federation) and strict permission matrices.

Responsibilities

  • 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 mechanisms for sensitive VIP data (passports, KMS-encrypted payment card boundaries).
  • Asynchronous Processing: Support event-driven ingestion and notification workflows powered by EventBridge, SQS, Lambda, and Webhooks.

Benefits

  • Udemy courses of your choice
  • Team-buildings, events, marathons & charity activities to connect and recharge
  • Workshops, trainings, expert knowledge-sharing that keep you growing
  • Clear career path
  • Absence days for work-life balance
  • Flexible hours & work setup - work from any of listed locations and organize your day your way

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Intellectsoft is a digital transformation consultancy that provides cutting-edge technology solutions to businesses worldwide. With a strong focus on innovation and customer satisfaction, the company has established itself as a trusted partner for companies looking to stay ahead of the curve in the rapidly evolving tech landscape. Intellectsoft's team of experts works closely with clients to understand their unique needs and develop tailored solutions that drive business growth, improve efficiency, and enhance customer experience. From mobile and web development to artificial intelligence, data analytics, and cybersecurity, Intellectsoft's services span a wide range of technologies, ensuring that clients receive comprehensive support and guidance throughout their digital transformation journey. With its commitment to excellence, innovative approach, and dedication to delivering exceptional results, Intellectsoft has earned a reputation as a leader in the tech industry, helping businesses thrive in an increasingly competitive market.

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