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Full Stack Developer - MERN Stack
Full Stack Developer - MERN StackCalsoft • Delhi, IN
Full Stack Developer - MERN Stack

Full Stack Developer - MERN Stack

Calsoft • Delhi, IN
1 day ago
Job type
  • Remote
Job description

Description :

Job Title : Full Stack Developer MERN.

About the job :

Role : Full Stack Developer.

Location : Remote / Chennai.

Job Type : Full-Time.

Experience : Minimum 6 years.

Start Date : Immediate.

Screening Priority : Proven leadership and product development experience in startup Overview :

We are looking for a highly experienced Full Stack Tech Lead to drive the development of scalable, production-ready applications.

This role demands deep technical expertise across the stack, hands-on coding ability and leadership experience in startups or high-growth environments.

The Tech Lead will not only architect and implement solutions but also mentor engineers, oversee code quality and contribute in projects from ideation to go-to-market (GTM).

Key Responsibilities :

  • Lead and mentor a team of full stack developers, guiding architectural decisions and best practices.
  • Design and implement end-to-end production-grade solutions with a focus on performance, scalability, and security.
  • Drive technical strategy, technology selection, and implementation plans in collaboration with product and business teams.
  • Participate in GTM planning, providing technical insights for product launches and integrations.
  • Conduct code reviews, enforce coding standards and ensure maintainability across projects.

Required Qualifications :

  • 6+ years of experience in full stack development with hands-on production deployments.
  • Strong React.js + TypeScript expertise.
  • Advanced Node.js (Express.js / NestJS) backend skills with API design and architecture experience.
  • Deep understanding of MongoDB including schema design, query optimisation and indexing strategies.
  • Proven experience with JWT / OAuth authentication and secure token management.
  • Strong debugging, error handling and performance tuning skills for both frontend and backend.
  • Experience managing environment variables securely across frontend and backend.
  • Prior startup experience with multi-company exposure, delivering production-ready products.
  • Solid experience with Git, code reviews and collaboration workflows.
  • Required Tech Stack :

  • Frontend : React.js, TypeScript, modern state / data libraries (Redux, Zustand, React Query, SWR).
  • Backend : Node.js, MongoDB.
  • Additional Qualifications (Good-to-Have) :

  • Experience with Next.js, server-side rendering (SSR).
  • Familiarity with WebSockets for real-time features.
  • Devops and Containerisation & orchestration experience (Docker, Kubernetes).
  • (ref : hirist.tech)

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