Job Description

Key Responsibilities

Design, develop, and maintain backend applications using Node.js and NestJS Build REST APIs, GraphQL services, microservices, and serverless solutions Integrate OpenAI APIs and other AI or LLM services into production systems Develop AI driven features such as chatbots, automation tools, content generation, and recommendations Design API workflows for prompts, embeddings, AI responses, and async processing Work with SQL and NoSQL databases including PostgreSQL, MySQL, and MongoDB Ensure high performance, scalability, and reliability of backend and AI services Collaborate with frontend and product teams on API design and AI requirements Implement authentication and security using JWT, OAuth2, and secure data handling Optimise performance including AI call latency, caching, and rate limit handling Write clean, reusable, and testable code Create unit and integration tests using Jest, Mocha, or Chai Debug, troubleshoot, and resolve production issues Participate in Agile ceremonies, code reviews, and technical discussions Document APIs, AI integrations, and backend architecture Stay up to date with Node.js, NestJS, and AI technology trends
Key Qualifications

4 or more years of backend development experience Strong experience with Node.js, NestJS, TypeScript, and JavaScript Hands on experience working with OpenAI APIs or similar AI platforms Good understanding of AI concepts including prompt engineering, embeddings, and token limits Experience building and consuming REST and GraphQL APIs Strong knowledge of authentication and API security practices Experience with relational and NoSQL databases such as PostgreSQL, MySQL, and MongoDB Familiarity with Redis, RabbitMQ, or Kafka is a plus Experience with cloud platforms such as AWS, Azure, or GCP Knowledge of Docker, CI CD pipelines, and automated deployments Strong understanding of OOP, design patterns, and clean code principles Strong problem solving and debugging skills Basic familiarity with frontend frameworks like React or Angular is a plus Fluent in English with strong communication and time management skills
Job Type: Full-time

Work Location: In person