Sr. Full Stack Engineer - MERN

We are seeking a Senior Full Stack Engineer (MERN) with deep expertise in modern JavaScript ecosystems and cloud architecture. You'll be working on complex application modernization initiatives, focusing on transforming legacy systems into scalable, cloud-native applications.

Core Technical Stack

• Frontend: React.js (with Hooks, Context API), Next.js 14+, Redux/RTK, TypeScript, Tailwind CSS, Material-UI/Chakra UI
• Backend: Node.js, NestJS, Express.js, GraphQL (Apollo Server), WebSocket
  

Cloud & Infrastructure

• AWS Services: ECS, Lambda, API Gateway, S3, CloudFront, RDS, DynamoDB, SQS/SNS, ElastiCache
• Infrastructure as Code: Terraform, CloudFormation
• Containerization: Docker, Kubernetes, ECS
  

Databases & Caching

• MongoDB
• PostgreSQL
• Redis
• Elasticsearch
• Authentication & Security:
• OAuth2.0/OIDC
• JWT
• AWS Cognito
• SAML2.0
  

Key Technical Responsibilities

System Architecture & Development (70%)

• Design and implement microservices architectures using Node.js/Nest JS, focusing on scalability and performance
• Build reusable component libraries and establish frontend architecture patterns using React.js and Next.js
• Implement real-time features using WebSocket/Socket.io for live data updates and notifications
• Design and optimize database schemas, write complex queries, and implement caching strategies
• Develop CI/CD pipelines with automated testing, deployment, and monitoring
• Create and maintain infrastructure as code using Terraform/CloudFormation
• Implement security best practices and compliance requirements (SOC2, GDPR)
  

Examples of Current Projects

• Modernizing a monolithic PHP application into microservices using Nest JS and React
• Implementing event-driven architecture using AWS Event Bridge and SQS
• Building a real-time analytics dashboard using WebSocket and Time-series databases
• Optimizing application performance through caching strategies and CDN implementation
• Developing custom hooks and components for shared functionality across applications
  

Required Technical Experience

• Expert-level proficiency in JavaScript/TypeScript and full-stack development
• Deep understanding of React.js internals, hooks, and performance optimization
• Extensive experience with Node.js backend development and microservices
• Strong background in cloud architecture and AWS services
• Hands-on experience with container orchestration and infrastructure automation
• Proven track record of implementing authentication and authorization systems
• Experience with monitoring, logging, and observability tools
  

About Us

TechAhead is

a global digital transformation company

with a strong presence in the USA and India. We specialize in

AI-first product design thinking and bespoke development solutions

. With over 15 years of proven expertise, we have partnered with

Fortune 500 companies and leading global brands

to drive digital innovation and deliver excellence. At TechAhead, we are committed to

continuous learning, growth and crafting tailored solutions

that meet the unique needs of our clients.Join us to shape the future of digital innovation worldwide and drive impactful results with cutting-edge AI tools and strategies!