Sr. MERN Stack Developer

Company Overview

Ackrolix Innovations Pvt Ltd is a technology-driven startup revolutionizing how professionals manage complex workflows through scalable digital platforms. Our platform integrates real-time data processing, AI-powered automation, and multi-tenant architecture to serve thousands of users across India. Backed by industry veterans, we’re building the future of enterprise SaaS with a focus on performance, security, and seamless user experiences

Job Description
We’re seeking a Senior MERN Stack Developer to architect and build a next-generation platform that bridges multiple user roles, complex workflows, and third-party integrations. You’ll design scalable systems handling real-time data, payment processing, and dynamic content delivery while ensuring enterprise-grade security.

Location: Gurgaon
Experience Required: Minimum 5 Years (below 5 Years not acceptable)
Joining: Immediate Joiner Preferred
Working Days: Monday to Friday, Alternate Saturdays Off

Key Challenges You’ll Solve:

• Build interconnected modules (web portals, admin dashboards, mobile apps) with shared business logic
• Implement real-time features (notifications, live updates) for 10K+ concurrent users
• Integrate payment gateways, AI services, and communication APIs
• Optimize database performance for complex queries and large datasets
• Design secure authentication and role-based access systems

Key Responsibilities
1. System Architecture

• Design microservices for scalability and maintainability
• Implement caching strategies (Redis) and database optimization (PostgreSQL)
• Build RESTful APIs and real-time communication (WebSockets)
• Integrate real-time communication APIs (SMS gateways, WhatsApp APIs, AI chatbot integrations).
• Work on payment gateway integrations (Razorpay, Stripe, PayU).
• Connect with third-party CRMs & tools (Zoho, Salesforce, HubSpot, Zapier).

2. Full-Stack Development

• Develop responsive frontends (React/Next.js) with TypeScript
• Create backend services (Node.js/NestJS) with robust error handling
• Create RESTful & GraphQL APIs with robust error handling.

3. Performance & Security

• Optimize systems to handle 10K+ concurrent users with sub-100ms API responses.
• Implement caching strategies (Redis), database optimizations (PostgreSQL, MongoDB).
• Ensure enterprise-grade security (JWT, OAuth2.0, encryption).

4. SaaS & Lead Management

• Build and scale SaaS-based, multi-tenant platforms.
• Implement role-based authentication systems.
• Design and optimize CRM & Lead Management workflows.
• Knowledge of workflow automation

5. Collaboration

• Mentor junior developers and review code
• Manage end to end project development
• Take ownership of project delivery
• Document architecture and deployment processes

Required Skills & Qualifications

• 5+ years in full-stack development with production-ready SaaS projects.
• Backend: Node.js, Express/NestJS, PostgreSQL, MongoDB
• Frontend: React, Next.js, Redux, TypeScript
• Real-Time: WebSockets, Socket.IO
• Cloud & DevOps: AWS (EC2, S3, RDS), Docker, CI/CD pipelines
• Hands-on with payment gateway integrations (Razorpay, Stripe).
• Strong experience in CRM & Lead Management System development.
• Experience in multi-tenant SaaS platforms & role-based systems.
• Prior experience in integrating third-party tools (Zoho, HubSpot, Salesforce, Zapier).

Preferred Skills

• Experience with AI/ML integrations (LangChain, OpenAI)
• Knowledge of microservices architecture (RabbitMQ, Kafka)
• Familiarity with mobile development (React Native)
• Understanding of DevOps practices (Kubernetes, Terraform)
• Contributions to open-source projects or technical blogs

Job Types: Full-time, Permanent

Pay: ₹1,200,000.00 - ₹1,800,000.00 per year

Benefits:

• Health insurance
• Provident Fund

Application Question(s):

• Knowledge of Third party Integration
• Knowledge of AI Integration & implementation

Education:

• Bachelor's (Preferred)

Experience:

• Full-stack development: 5 years (Required)
• Node.js: 5 years (Preferred)
• React: 5 years (Required)
• React Native: 3 years (Preferred)
• AWS: 3 years (Required)
• DevOps: 3 years (Preferred)

Location:

• Gurgaon, Haryana (Preferred)

Work Location: In person

Expected Start Date: 08/09/2025