Sr MERN Stack Developer

Senior MERN Stack Developer with Data Pipeline & ETL Experience

We are seeking a highly skilled and experienced Senior MERN Stack Developer with a proven track record in building robust data pipelines and ETL (Extract, Transform, Load) processes. The ideal candidate will be a full-stack expert, capable of designing, developing, and deploying scalable web applications from front to back, with a specific focus on efficient and reliable data integration and management within the MERN ecosystem. You will play a pivotal role in shaping our data architecture and ensuring seamless data flow for critical applications.

Responsibilities

MERN Stack Development

• Lead the design, development, and deployment of complex web applications using the MERN stack (MongoDB, , , ).
  
• Develop high-quality, scalable, and maintainable code for both front-end ) and back-end ) components.
  
• Design and implement RESTful APIs and ensure seamless integration between front-end and back-end services.
  
• Optimize application performance, scalability, and security across the full stack.
  
• Write comprehensive unit, integration, and end-to-end tests to ensure code quality and functionality.
  
• Collaborate closely with product managers, UX/UI designers, and other engineers to translate business requirements into technical solutions.
  
• Participate actively in code reviews, technical discussions, and sprint planning.
  

Data Pipeline & ETL

• Design, build, and maintain efficient and reliable data pipelines to extract, transform, and load data from various sources into MongoDB or other relevant data stores.
  
• Develop robust ETL processes using , Python, or other appropriate tools/scripts to clean, transform, and normalize large datasets.
  
• Implement data validation, error handling, and monitoring for all data ingestion and transformation processes.
  
• Optimize data models and database schemas (primarily MongoDB) for performance, scalability, and data integrity.
  
• Troubleshoot and resolve data-related issues, ensuring data accuracy and consistency across systems.
  
• Implement strategies for data versioning, auditing, and reconciliation.
  
• Evaluate and integrate third-party tools or services for data processing, streaming, or warehousing as needed.
  

Qualifications

• 6 years of professional experience as a Full Stack Developer, with at least 2-3 years specifically focused on the MERN stack.
  
• Demonstrable experience in designing and building data pipelines and ETL processes.
  
• Expert proficiency in JavaScript (ES6 ) and TypeScript.
  
• Strong expertise in
  
  • Component-based architecture, Hooks, Context API / Redux (or other state management).
    
  • Familiarity with modern front-end build pipelines and tools.
    
• In-depth knowledge of and
  
  • Developing scalable APIs, asynchronous programming, middleware, authentication (JWT).
    
• Extensive experience with MongoDB:
  
  • Schema design, aggregation framework, indexing, performance optimization.
    
  • Experience with NoSQL databases in general.
    
• Proficiency with SQL for querying relational databases (if used as source systems for ETL).
  
• Solid understanding of data warehousing concepts and data modeling principles.
  
• Experience with version control systems (Git) and CI/CD pipelines.
  
• Strong understanding of RESTful API design principles.
  
• Familiarity with cloud platforms (e.g., AWS, Azure, GCP) and containerization (Docker, Kubernetes) is a plus.
  
• Excellent problem-solving, analytical, and debugging skills.
  
• Strong communication, collaboration, and leadership abilities.
  
• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
  

Preferred Skills & Experience (Nice to Haves)

• Experience with message queues (e.g., Kafka, RabbitMQ) for data streaming.
  
• Familiarity with other data processing frameworks (e.g., Apache Spark, Pandas).
  
• Knowledge of data security best practices.
  
• Experience with GraphQL.
  
• Previous experience in a senior or lead developer role, mentoring junior team members.