Senior Full-Stack Developer, NestJS, React

🔥 1 hour ago

🌐 Ukraine, Poland, +1 more countries – Remote

🇺🇦 Ukraine – Remote 🇵🇱 Poland – Remote 🇪🇸 Spain – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 10%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Intellectsoft

WebsiteLinkedInAll Job Openings

51 - 200 employees

💼 Consulting

🏥 Healthcare

📦 Logistics

Consulting • Healthcare • Logistics

Intellectsoft is a leading software development company that has been empowering businesses since 2007 with custom software solutions. Specializing in full-cycle, end-to-end development services, Intellectsoft helps enterprises, startups, and SMBs launch and scale their digital products, ensuring improved experiences for their customers and employees. With a presence in over 20 countries, Intellectsoft provides expertise in mobile app development, enterprise software solutions, digital transformation, and intelligent automation technologies such as AI, Blockchain, and IoT. The company serves a wide range of industries, including Fintech, Healthcare, Automotive, and Construction, and is trusted by Fortune 500 companies and leading brands worldwide for their software needs.

📋 Description

• Design, build, and deploy full-stack capabilities across the NestJS API backend and modern React/React Native frontend surfaces. • Develop modular NestJS domain services, RESTful APIs, OpenAPI specs, and resilient third-party integrations (Twilio, Klaviyo, Google Places/Maps, Attio CRM, Shopify). • Build complex, high-density administrative interfaces in ReactJS and cross-platform mobile app components in React Native. • Implement relational schemas and query optimizations in Aurora PostgreSQL, including spatial proximity search (PostGIS) and vector embedding indexes (pgvector for AI retrieval). • Enforce strict staff and member identity controls, resource/field-level authorization guards, and audit mechanisms for sensitive VIP data. • Support event-driven ingestion and notification workflows powered by EventBridge, SQS, Lambda, and Webhooks.

🎯 Requirements

• 5+ years of professional software engineering experience with TypeScript end-to-end across backend and frontend environments. • Strong production experience with NestJS (Modules, Guards, Interceptors, Pipes) and Node.js. • Deep experience with ReactJS (hooks, state management, modern UI patterns) and React Native (iOS & Android). • Proven experience with relational database design, complex SQL queries, migrations, and ORMs (Prisma or TypeORM). • Proven experience working with LLM APIs / Providers (AWS Bedrock, OpenAI, Anthropic Claude), vector search databases (pgvector, Pinecone, or Qdrant), and RAG architecture. • Hands-on experience with managed AWS services (ECS Fargate, S3, Cognito, EventBridge, SQS, KMS, Secrets Manager). • Proficiency with asynchronous data fetching libraries (e.g., TanStack Query / React Query), REST APIs, and typed API client generation. • Experience implementing multi-tenant auth workflows (OAuth2, JWTs, SSO federation) and strict permission matrices.

🏖️ 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