Senior Backend Developer(MERN Stack)

Role: Senior Backend Developer(MERN Stack)

Experience: 5-8 Years

Location: Gurugram

About Fairdeal.Market

Fairdeal.Market is a rapidly growing B2B quick commerce company offering a wide range of products with delivery times as short as 60 minutes. Our mission is to ensure that every shopping bag worldwide can be filled efficiently and sustainably.

Role Summary

As a Senior Backend Engineer, you will be responsible for designing and implementing robust, scalable, and high-performance backend services. You will contribute to architectural decisions,solve complex technical problems, and mentor junior developers across the stack, with a strong emphasis on Node.js, Express.js, MongoDB, and backend architecture. Familiarity with Docker and CI/CD

pipelines is plus.

Key Responsibilities

• Architect and implement backend services and REST APIs using Node.js and Express.js.
• Design scalable data models and work with MongoDB and NoSQL databases efficiently.
• Solve complex problemsrelated to performance,scalability, and data integrity.
• Ensure code quality through test coverage, peer reviews, and automated workflows.
• Collaborate with frontend developers, product managers, and DevOpsfor feature implementation.
• Lead the technical architecture of new features and services.
• Manage background jobs, queues, event-driven architecture.
• Ensure application security and data protection protocols.
• Optimize application for performance, scalability, and maintainability.
• Mentor and guide junior engineers, ensuring best coding practices are followed.
• Participate in sprint planning, technical discussions, and release management.

Qualifications

• Education: B.Tech in Computer Science, Information Technology, or related field.
• 4+ years of hands-on experience with the MERN stack, especially in backend development.
• Proficiency in JavaScript and Node.js, with deep understanding of Express.js.
• Strong database knowledge, especially MongoDB, including schema design and optimization.
• Experience in architecting scalable backend systems.
• Familiarity with Docker, containerization concepts, and CI/CD pipelines (e.g., GitHub Actions,

Jenkins, GitLab CI).

• Understanding of REST APIs, microservices, and API documentation (Swagger/OpenAPI).
• Familiarity with Redis, message queues (RabbitMQ, Kafka) is a plus.
• Strong problem-solving and analyticalskills.
• Excellent written and verbal communication.

Good to Have

• Exposure to cloud platformslike AWS (EC2, S3, Lambda).
• Experience with monitoring/logging tools(ELK Stack, Prometheus, Grafana).
• Knowledge of GraphQL, WebSockets, or gRPC.
• Contribution to open-source or public code repositories.