
Mid/Senior Full Stack NodeJS/ Developer with AI/LLM experience
4 weeks ago
Direct message the job poster from Code Upscale
Co-Founder @Code Upscale | AI Transformation Leader | Helping Companies to Adopt Cloud and AIMid/Senior Full Stack Node.js Developer (AI / LLM Focus)
Code Upscale delivers custom web and mobile solutions that leverage AI, cloud services and modern frameworks. We partner with enterprises and startups—across fintech, healthcare and e-commerce—to build production-ready applications that scale.
The Role
You'll own end-to-end delivery of AI-driven features on our core platform, collaborating with product, design and data-science teams. You'll design and build REST/GraphQL services in Node.js, integrate LLM APIs (e.g. GPT-4), and craft responsive front-ends that surface insights from embeddings and retrieval-augmented generation.
What You'll Do
- Architect, develop and maintain Node.js/Nest.js microservices and serverless functions
- Integrate LLMs (OpenAI, Anthropic, etc.) and vector databases (Pinecone, Weaviate) for semantic search and chat
- Build React (or Vue) front-ends with clean, performant UI and state management
- Implement CI/CD pipelines, containerization (Docker), and infrastructure as code (Terraform)
- Write unit/integration tests and conduct code reviews to uphold quality standards
- Optimize performance and cost on AWS/GCP/Azure (Lambda, ECS/EKS, Cloud Run)
- Collaborate on prompt design, fine-tuning workflows and production monitoring
What You Bring
- 4+ years professional experience in Node.js / Express or NestJS
- 3+ years building SPAs with React (Hooks, Context, Redux) or comparable frameworks
- Hands-on with GPT-4, embeddings, RAG architectures and prompt engineering
- Familiarity with vector stores and retrieval pipelines
- Solid understanding of REST, GraphQL and WebSocket APIs
- Experience with Docker, Kubernetes or serverless deployments
- Strong testing discipline (Jest, Mocha, Cypress) and code-review mindset
- Excellent communication and ownership mentality
Nice to Have
- Experience with Next.js, Nuxt or server-side rendering
- Background in data-intensive applications (ETL, streaming)
- Prior work on AI-driven SaaS products
Why Code Upscale
- Direct impact on product roadmap and architecture
- Exposure to cutting-edge AI/LLM projects
- Competitive compensation and professional growth
- Seniority levelMid-Senior level
- Employment typeFull-time
- IndustriesSoftware Development
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