We are looking for a Senior Backend Developer (Node.js) for 6+ months for a project from scratch.

Responsibilities

• Design, develop, and maintain scalable backend services using Node.js and NestJS (TypeScript).
• Architect and optimize a multi-tenant SaaS platform ensuring performance, scalability, and security.
• Work extensively with PostgreSQL, including: writing advanced queries, designing indexes, implementing partitioning, configuring Row-Level Security (RLS).
• Develop and maintain data models using Prisma ORM (or similar ORMs).
• Implement secure authentication and authorization (JWT, OAuth2, MFA).
• Follow and enforce SOC 2–aligned security practices (encryption, access controls, logging).
• Build and manage background jobs with BullMQ and Redis.
• Deploy and operate applications on AWS (EC2, RDS, S3, CloudFront, CloudWatch).
• Set up and maintain CI/CD pipelines using GitHub Actions, including automated unit and E2E testing.
• Monitor, debug, and optimize backend performance under high-load conditions.
• Collaborate closely with the team to deliver a production-ready system from scratch within the project timeline.

Must-Have Qualifications

• 5+ years of professional backend development experience.
• Strong expertise with Node.js and NestJS (TypeScript).
• Advanced experience with PostgreSQL (queries, indexes, partitioning, RLS).
• Proficiency with Prisma ORM or similar ORM frameworks.
• Proven experience building and scaling multi-tenant SaaS platforms.
• Hands-on experience with AWS (EC2, RDS, S3, CloudFront, CloudWatch).
• Solid understanding of security best practices: JWT / OAuth2, MFA, encryption standards, SOC 2 principles.
• Experience with BullMQ and Redis for background processing.
• Familiarity with CI/CD and GitHub Actions.
• Ability to architect and optimize systems for high load and reliability.

Nice-to-Have

• Experience integrating Stripe and/or DocuSign.
• Knowledge of monitoring and observability tools: Sentry, Datadog, CloudWatch.
• Domain experience in marketplaces, fintech, or pharma.
• Experience working with RDKit in PostgreSQL.