Overview

MERN Stack Developer

Responsibilities

• Design, build, and sustain scalable web applications using the MERN stack, including the development of REST and GraphQL APIs.
• Create responsive and dynamic user interfaces leveraging React, JavaScript, TypeScript, HTML, and CSS.
• Develop resilient backend services and business logic utilizing Node.js and Express.js.
• Architect, refine, and administer MongoDB data models, covering schema design, query optimization, indexing, and aggregation pipelines.
• Enable smooth integration with external platforms by connecting third-party APIs, webhooks, and payment processing systems.
• Implement rigorous end-to-end and functional testing frameworks using Playwright.
• Create and manage business logic automation and API-driven workflows via n8n.
• Integrate AI and LLM APIs to enhance application features and streamline automated processes.
• Utilize AI-powered coding tools and prompt engineering strategies to boost development speed and code quality.
• Apply advanced understanding of LLM mechanics, including tokens, context windows, embeddings, RAG, and AI agent behaviors, to address complex technical challenges.
• Handle version control operations, including branching strategies, code reviews, pull requests, and release management through Git-based platforms.
• Direct deployment procedures, manage environment configurations, handle application publishing, and provide ongoing production support.
• Perform detailed debugging and root-cause analysis for issues affecting applications, APIs, databases, and live systems.
• Uphold industry standards for secure coding, performance optimization, and long-term code maintainability.
• Collaborate with QA, UI/UX, Product, and DevOps teams to ensure seamless feature delivery from initial concept to final launch.
• Offer technical mentorship and guidance to junior team members as needed.

Qualifications

• Hold 4-7 years of professional experience in software development.
• Possess extensive, hands-on proficiency with the MERN stack (MongoDB, Express.js, React, and Node.js).
• Demonstrate mastery of React architecture, including hooks and state management, alongside Node.js/Express capabilities such as middleware, routing, and authentication.
• Show strong command over MongoDB schema design and the ability to build RESTful APIs while managing asynchronous JavaScript operations using Promises and async/await patterns.
• Exhibit solid frontend development skills using JavaScript, TypeScript, HTML, and CSS.
• Have a track record of implementing automated testing suites with Playwright.
• Demonstrate practical experience in building automation workflows, managing webhooks, and handling API integrations using n8n.
• Show familiarity with AI/LLM API integration, prompt engineering, and AI-assisted coding practices.
• Understand version control systems (Git/GitHub/GitLab), CI/CD pipelines, deployment strategies, and production environment management.
• Display strong problem-solving skills, a sense of ownership, effective communication abilities, and a dedication to maintaining high code quality.
• Experience with containerization using Docker and cloud deployment on platforms such as AWS.
• Knowledge of Redis, caching strategies, message queues (e.g., Bull/BullMQ), and techniques for performance optimization.
• Familiarity with Retrieval-Augmented Generation (RAG), vector databases, AI agents, or the development of AI-driven applications.
• A proven history of integrating OpenAI or other leading LLM platforms.
• Experience in creating complex automation workflows within n8n.
• Background in building applications using Next.js or other advanced React frameworks.