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Full Stack Developer (MERN + React Native)
Full Stack Developer (MERN + React Native)im24x7 Delta Solutions FZCO • Lucknow, IN
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Full Stack Developer (MERN + React Native)

Full Stack Developer (MERN + React Native)

im24x7 Delta Solutions FZCO • Lucknow, IN
29 days ago
Job description

Job Title : Full Stack Developer (MERN + React Native)

Location : Remote

Job Type : Full-Time

Experience : 4–10 Years

Availability : Immediate Joiners Only

About the Role

We are seeking a highly capable Full Stack Developer with strong expertise in React.js, Node.js, MongoDB / DynamoDB , and working knowledge of React Native . The ideal candidate will drive the development of scalable, end-to-end applications—covering UI / UX, backend architecture, cloud services, and performance optimization.

This role requires a self-driven engineer with strong ownership, architectural thinking, and the ability to work independently while maintaining a high bar for quality, security, and performance.

Key Responsibilities

Frontend Development (React.js / React Native)

  • Build high-performance, scalable, and intuitive UIs using React.js .
  • Develop and maintain React Native mobile screens and components.
  • Implement modern UI patterns, reusable component libraries, and responsive workflows.
  • Manage global state using Redux, Redux Toolkit, Context API, or Zustand .
  • Optimize rendering performance, lazy loading, caching, and bundle size.
  • Implement pixel-perfect UI using Tailwind, Material UI, Styled Components (preferred).

Backend Development (Node.js / Express.js / API Architecture)

  • Develop secure, scalable RESTful APIs , microservices, and backend modules.
  • Implement authentication & authorization using JWT, OAuth, Cognito, SSO .
  • Integrate internal / external APIs—payments, third-party services, analytics, etc.
  • Perform backend optimization : caching, load balancing, and concurrency management.
  • Write modular, testable, and maintainable backend logic following best practices.
  • Implement rate limiting, request validation (Joi / Zod), and API throttling for security.
  • Database Engineering (MongoDB / DynamoDB / PostgreSQL)

  • Design and optimize NoSQL & relational data models .
  • Strong understanding of indexes, sharding, partitioning, and query optimization.
  • Manage and tune MongoDB Atlas, DynamoDB tables, GSIs / LSIs , and read / write throughput.
  • Implement caching layers using Redis / ElastiCache .
  • Ensure data integrity, migration handling, and versioned schema updates.
  • AWS & Cloud Engineering

  • Experience with AWS Serverless stack : Lambda, API Gateway, S3, DynamoDB, Cognito, CloudWatch .
  • Build and deploy production-ready applications using AWS services.
  • Implement CI / CD pipelines using GitHub Actions, Bitbucket Pipelines, GitLab CI .
  • Familiarity with containerization and deployments using Docker & ECS / EKS .
  • Knowledge of Infrastructure as Code (IaC) : CloudFormation / Terraform (added skill).
  • General Engineering Responsibilities

  • Collaborate with Product Owners, UI / UX, QA, and DevOps teams.
  • Participate in sprint planning, solution design, and architectural reviews.
  • Troubleshoot production issues and ensure system reliability.
  • Write clean documentation, API specs, and technical guides.
  • Follow clean coding norms, security best practices, and design principles (SOLID, DRY, KISS).
  • Qualifications

  • 4–10 years of full stack development experience.
  • Strong analytical and problem-solving abilities.
  • Excellent communication and collaboration skills.
  • Immediate joiners only.
  • Required Skills

  • Strong hands-on expertise in React.js , including Hooks, Redux, and advanced component architecture.
  • Advanced proficiency in Node.js and Express.js , with solid experience in scalable server-side development.
  • Deep understanding of MongoDB or DynamoDB , including schema design, indexing strategies, and performance optimization.
  • Practical working experience with React Native for mobile development.
  • Strong understanding of REST APIs, JSON workflows, authentication / authorization mechanisms, and modern security best practices .
  • Experience working with Git, CI / CD pipelines, Agile / Scrum methodologies , and participating in peer code reviews.
  • Additional Preferred Skills

  • TypeScript for strongly typed development.
  • AWS Serverless Framework or SAM.
  • Experience building microservices & event-driven architectures .
  • Unit testing with Jest / Mocha / Supertest .
  • Docker / Kubernetes (EKS) familiarity .
  • Redis caching, message queues ( SQS, SNS, Kafka, RabbitMQ ).
  • Knowledge of React Query, SWR, or Apollo Client.
  • Performance profiling tools (Chrome DevTools, Lighthouse, React Profiler).
  • Understanding of CI / CD best practices, automated testing, and code coverage.
  • Experience with analytics, logging, and monitoring tools (ELK, Datadog, CloudWatch).
  • Knowledge of security standards (OWASP, JWT hardening, API security, CORS policies).
  • Compensation & Benefits

  • Competitive salary based on experience and skillset.
  • Opportunity to work on international, large-scale, high-impact projects.
  • Collaborative, innovative, and growth-driven engineering culture.
  • Remote and flexible working options.
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    Mern Stack Developer • Lucknow, IN

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