Back-End Developer (Node.js + AI Infrastructure)

• Develop robust and scalable REST APIs using Node.js (Express.js or NestJS)
• Manage authentication & authorization (JWT/OAuth)
• Handle file uploads and process PDFs, images, and documents
• Integrate and manage communication with LLM APIs (OpenAI, Anthropic, HuggingFace, etc.)
• Build services that enable prompt chaining, context enrichment, and AI feedback loops
• Architect and maintain multi-tenant architecture for user-specific AI agents
• Enable real-time communication (WebSockets / Socket.IO)
• Manage and optimize databases (PostgreSQL, MongoDB)
• Implement caching strategies (e.g. Redis) to improve performance
• Ensure data privacy and security compliance (e.g., HIPAA, GDPR)
• Deploy and maintain the infrastructure on AWS, GCP, or Azure
• Write well-tested, documented, and maintainable code

QUALIFICATIONS:

• 4+ years experience in Node.js back-end development
• Experience working with LLMs and AI model APIs (OpenAI, Hugging Face, Cohere, etc.)
• Familiarity with prompt engineering and managing LLM input/output
• Strong understanding of RESTful APIs, authentication flows, and secure data handling
• Hands-on experience with Redis and caching optimization
• Experience with PostgreSQL, MongoDB, or similar DBs
• Real-time architecture experience using WebSocket or Socket.IO
• Comfortable deploying and monitoring services on cloud platforms (AWS/GCP)
• Strong testing discipline (unit, integration, load tests)

BONUS POINTS:

• Experience with LangChain, LlamaIndex, or similar frameworks
• Familiarity with Vector Databases (Pinecone, Qdrant, Weaviate)
• Prior work in healthtech or secure environments (HIPAA-compliance)
• Experience with microservices or event-driven architectures
• Knowledge of infrastructure as code (Terraform, CDK)

SOFT SKILLS:

• Strong communication skills both written and spoken
• Critical thinking, creativity and problem-solving
• Teamwork and collaboration
• Strong work ethic, accountability and determination
• Organization and time-management skills
• Presentation and mentoring