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Sr Full Stack Developer MERN/PERN

Sigma Infosolutions

IndiaOn-sitesenior₹8 LPA–16 LPA
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About the role

We are looking for a Senior Full Stack Developer with strong expertise in JavaScript/TypeScript and hands-on experience across modern frontend and backend technologies . The ideal candidate should be comfortable building scalable, high-performance web applications and collaborating closely with product, design, and engineering teams.

Key Responsibilities

  • Design, develop, and maintain scalable full-stack web applications .
  • Build responsive and performant frontend applications using React.js .
  • Develop and maintain backend services using Node.js and Express.js .
  • Design and optimize SQL and NoSQL databases to ensure data integrity and performance.
  • Build, consume, and document RESTful APIs (GraphQL exposure is a plus).
  • Write clean, maintainable, and testable code following best practices.
  • Participate in code reviews , branching strategies, and release processes.
  • Collaborate with cross-functional teams to translate requirements into technical solutions.
  • Ensure application performance, security, and scalability.
  • Contribute to CI/CD pipelines and deployment processes.

Required Technical Skills

  • Strong experience with JavaScript and TypeScript .
  • Expertise in React.js , including Hooks, Context API , and state management ( Redux / Zustand preferred ).
  • Solid backend development experience with Node.js and Express.js .
  • Hands-on experience with either:
  • PostgreSQL (PERN stack)
  • MongoDB (MERN stack)
  • Strong understanding of SQL and NoSQL database design principles .
  • Experience in building and consuming REST APIs .
  • Basic knowledge of GraphQL is a plus.
  • Familiarity with ORMs/ODMs such as Sequelize, Prisma, or Mongoose .
  • Proficiency with Git , branching strategies, and code review practices.
  • Understanding of Docker , CI/CD pipelines , and cloud platforms ( AWS ).

Nice to Have

  • Experience working with Next.js .
  • Exposure to microservices architecture .
  • Knowledge of message queues such as Kafka or RabbitMQ .
  • Experience building or maintaining high-scale or multi-tenant systems .

Soft Skills

  • Strong problem-solving and analytical skills.
  • Good communication and collaboration abilities.
  • Ability to take ownership and work independently.
  • Adaptable and eager to learn new technologies.

Skills required

microservicesjavascripttypescriptpostgresqlnext.jsnode.jsexpressgraphqlmongodbdockerreactkafkaci/cdsqlawsgit

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