Sr. JavaScript Full Stack Developer | 4+ Years Exp

Winzons; India; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

TOPS Infosolutions is seeking an experienced Senior JavaScript Full Stack Developer to design, build, and optimize scalable web applications. You will work across React frontends, Node backends, and cloud infrastructure, leading technical decisions and ensuring production-grade quality.

The role requires mentoring engineers, code reviews, and collaborating with clients on scoping and demos in an Agile environment. Strong passion for modern JavaScript and software architecture is essential.

Qualifications

• Minimum 4 years of professional experience in JavaScript Full Stack Development.
• Experience delivering and maintaining production-grade applications.

Responsibilities

• Design, build, and maintain scalable full-stack applications running in production.
• Own technical decisions on architecture, data modeling, deployments, and performance trade-offs.
• Debug live issues across the stack, identify bottlenecks, and improve performance.
• Participate in client conversations: scoping, technical discussions, demos, and updates.
• Mentor junior and mid-level engineers and contribute to team engineering standards.
• Continuously evaluate and adopt tools and practices that improve delivery.
• Work in an Agile / Scrum setup with regular delivery cycles.

Skills

JavaScript

TypeScript

React.js

Node.js

Express.js

NestJS

REST APIs

GraphQL

AWS

SQL/NoSQL modeling

Education

Bachelor's degree in Computer Science

Tools

Git

CI/CD

GitHub Copilot

Job description

TOPS Infosolutions is looking for an experienced Senior JavaScript Full Stack Developer to build, maintain, and optimize scalable web applications. The selected candidate will work across the complete application stack, including React.js frontends, Node.js backends, cloud infrastructure, databases, and API integrations.

The role involves technical leadership, mentoring developers, reviewing code quality, participating in client discussions, and designing scalable software solutions for production environments. Candidates should be passionate about modern JavaScript development, cloud technologies, and software architectur.

Company: TOPS Infosolutions
Location: Ahmedabad, Gujarat
Job Type: Full-Time
Work Mode: On-Site
Experience Required: 4+ Years
Number of Openings: 2

Job Description

• Design, build, and maintain scalable full-stack applications running in production
• Own technical decisions on architecture, data modeling, deployments, and performance trade-offs
• Debug live issues across the stack, identify bottlenecks, and improve performance
• Participate in client conversations: scoping, technical discussions, demos, and updates
• Review code and raise the team\'s bar including the judgment to catch when AI-generated code is subtly wrong, overengineered, or a poor fit
• Mentor junior and mid-level engineers and contribute to team engineering standards
• Continuously evaluate and adopt tools and practices that improve delivery
• Work in an Agile / Scrum setup with regular delivery cycles

Key Responsibilities

• Experience

Experience

• Minimum 4 years of professional experience in JavaScript Full Stack Development.
• Experience delivering and maintaining production-grade applications.

Frontend Skills

• JavaScript (ES6+)
• TypeScript
• React.js
• React Hooks
• State Management (Redux, Context API, or similar)
• Component Architecture
• Performance Optimization

Backend Skills

• Node.js
• Express.js
• NestJS (Preferred)
• REST APIs
• GraphQL (Preferred)
• Authentication & Authorization
• Error Handling
• Third-party API Integration

Database Skills

• PostgreSQL
• MySQL
• MongoDB
• SQL & NoSQL Data Modeling
• Database Performance Optimization

Cloud & DevOps

• AWS Services
• Application Deployment
• Production Monitoring
• Redis / Memcached
• Queues and Background Jobs
• Git & Version Control

Testing & Security

• Unit Testing
• Integration Testing
• End-to-End (E2E) Testing
• OWASP Security Best Practices
• Secrets Management
• Authentication Flows

AI Development Tools

• Experience working with AI-assisted development tools such as:
• Cursor
• GitHub Copilot
• Claude Code
• Similar AI coding assistants