SDE I - NodeJS, Ultra

What you'll do

• Build and maintain performant APIs and backend services using Node.js and frameworks like Express.js, NestJS, or Fastify
• Develop and manage ETL/ELT pipelines, data models, schemas, and data transformation logic for analytics and operational use
• Ensure data quality, integrity, and consistency through validation, monitoring, and logging
• Work with database technologies (MySQL, PostgreSQL, MongoDB, Redis) to store and manage application and analytical data
• Implement integrations with third-party APIs and internal microservices
• Use ORMs like Sequelize, TypeORM, or Prisma for data modeling and interaction
• Write unit, integration, and E2E tests using frameworks such as Jest, Mocha, or Supertest
• Collaborate with frontend, DevOps, and data engineering teams to ship end-to-end features
• Monitor and optimize system performance, logging (e.g., Winston, Pino), and error handling
• Contribute to CI/CD workflows and infrastructure automation using tools like PM2, Docker and Jenkins

Requirements

• 1+ years of experience in backend development using Node.js
• Hands-on experience with Express.js, NestJS, or other Node.js frameworks
• Understanding of data modelling, partitioning, indexing, and query optimization
• Experience in building and maintaining data pipelines, preferably using custom Node.js scripts
• Familiarity with stream processing and messaging systems (Kafka, RabbitMQ, or Redis Streams)
• Solid understanding of SQL and NoSQL data stores and schema design
• Strong knowledge of JavaScript and preferably TypeScript
• Familiarity with cloud platforms (AWS/GCP/Azure) and services like S3, Lambda, or Cloud Functions
• Experience with containerized environments (Docker) and CI/CD
• Experience with data warehouses (BigQuery, Snowflake, Redshift)

Tech stack