Senior Full Stack Backend Developer

4 days ago

Noida, Uttar Pradesh, India Uplevyl Full time

Senior Full Stack Backend Developer (AWS Architect + Node.js + DB Engineer)

Experience Required: 6+ Years

Domain: AI-Powered Social Platform / Media / E-Commerce

About the Role

We are seeking a highly skilled Senior Full Stack Backend Developer with proven expertise across AWS architecture, Node.js backend development, and scalable database design . You'll be responsible for designing, building, and optimizing scalable APIs , managing cloud infrastructure, and driving AI-first backend innovations in a fast-paced, agile environment.

This role also involves collaborating closely with frontend/mobile teams and integrating seamlessly with our React Native apps . You will be expected to leverage AI tools for automation, rapid prototyping, and performance tuning — ensuring continuity with our existing architecture and enabling future scalability.

Key Responsibilities


• Architect, design, and maintain a highly scalable and secure backend system using Node.js and AWS services .


• Build RESTful and GraphQL APIs to support mobile and web applications.


• Lead infrastructure decisions on AWS (Lambda, ECS, Cognito, S3, API Gateway, DynamoDB, RDS, etc.) .


• Design and optimize relational and NoSQL databases, focusing on performance, indexing, and data integrity.


• Integrate AI APIs/tools into the backend for moderation, recommendation, and automation workflows.


• Integrate with Stripe and PayPal payment gateway integrations


• Write clean, modular, well-tested code following modern engineering practices.


• Collaborate with frontend/mobile teams to deliver features aligned with product goals.


• Participate in Agile/Scrum ceremonies , sprint planning, and code reviews.


• Support existing application infrastructure while leading modernization efforts.

Required Skills and Qualifications

Backend Development


• 5+ years of hands-on development in Node.js , Express/NestJS


• Proficient with TypeScript, REST API standards, WebSockets, and microservices

AWS & DevOps Architecture


• Expert knowledge of AWS services : Cognito, Lambda, S3, API Gateway, ECS/EKS, IAM, CloudWatch


• Infrastructure as Code: CloudFormation, CDK, or Terraform


• Strong understanding of networking, authentication flows , and cloud security best practices

Database Engineering


• Experience with PostgreSQL/MySQL and NoSQL solutions like DynamoDB


• Ability to design normalized schemas, manage migrations, write optimized queries, and handle large-scale data flows


• Familiarity with time-series data, analytics DBs (e.g., Redshift or Athena) is a plus

AI-Driven Development


• Integrating with AI APIs (e.g., OpenAI, AWS Comprehend, Rekognition)


• Use of AI tools (e.g., Copilot, ChatGPT, AI code generation) for rapid prototyping and efficiency


• Comfortable debugging or extending AI-assisted modules in production

Testing & CI/CD


• Experience with unit/integration testing using Jest, Mocha, or similar


• Familiarity with GitHub Actions, CodePipeline, or similar CI/CD tools

Security & Compliance


• JWT/OAuth2 token handling and RBAC implementation


• Understanding of data privacy (GDPR) , secure data flows, and encryption

Soft Skills


• Strong communication and cross-functional collaboration


• Product-first thinking and an eye for scalable design


• Ability to rapidly adapt and extend existing backend codebase with minimal disruption

Comfortable working in Scrum and participating in agile delivery

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