Senior / MERN Stack Developer

paxcomยท Web Development
Apply Now โ†—
๐Ÿ“ Gurugram, HR, India๐Ÿ“ Mohali, PB, IndiaFULL TIME

About this role

Who We are:


Paxcom a leading Digital Solution Provider is a part of Paymentus now, a leading electronic bill payment provider. PaymentUs leads the North American marketplace in electronic bill payment solutions and have recently signed a partnership with Paypal, Alexa and Walmart.

Recognized by Deloitte as one of the fastest growing companies in North America, Paymentus is the premier provider of innovative, reliable, and secure electronic bill presentment and payment services for more than 1300 clients leading the Utility, Telecom, Auto Finance, Insurance, Consumer Finance, and Health industries. Our comprehensive eBilling and Payment Platform allows our clients to provide a unified customer bill-pay experience that includes online, mobile, IVR, text, kiosk, and agent-assisted channels, as well as a full range of customer communication options.

For more details, please visit www.paymentus.com & www.paxcom.ai

Job Title: Senior Software Engineer (MERN)
Years of Experience : 4+ Years
Job Type: Full Time | Work from Office
Job Location : Mohali/Gurugram

Interview Process: Tech Round 1 (Webcam) >> Tech Round 2 (Face-to-Face / Webcam) >> Tech 3 (If Required)
The process has been kept concise to ensure a smooth and efficient evaluation experience for both candidates and the hiring team.

Professional Experience:
  • Designed, developed, tested, and deployed scalable full-stack web applications using the MERN stack (MongoDB, Express.js, React.js, and Node.js) for enterprise and SaaS-based solutions.
  • Built high-performance RESTful APIs using Express.js and Node.js, implementing authentication, authorization (JWT/OAuth), role-based access control, and secure API communication.
  • Leveraged Node.js asynchronous programming model, Promises, async/await, streams, and event-driven architecture to build efficient and scalable backend services.
  • Designed and optimized MongoDB databases, including schema design, aggregation pipelines, indexing strategies, query optimization, and performance tuning for handling large datasets.
  • Developed responsive and reusable UI components using React.js, React Hooks, Context API, Redux Toolkit, and React Router, ensuring seamless user experiences across devices.
  • Integrated third-party APIs, payment gateways, email services, cloud storage, and authentication providers into web applications.
  • Implemented state management using Redux and Context API for complex frontend applications, improving maintainability and application performance.
  • Worked extensively with JavaScript (ES6+) and TypeScript to build clean, modular, and maintainable code following modern development standards.
  • Built reusable middleware, validation layers, error handling mechanisms, and logging systems for scalable backend architectures.
  • Containerized applications using Docker and collaborated on deployment pipelines for development, testing, and production environments.
  • Used Git for version control, feature branching, code reviews, pull requests, and collaborative development in Agile/Scrum teams.
  • Optimized application performance through lazy loading, code splitting, caching, database indexing, API optimization, and frontend rendering improvements.
  • Participated in requirement gathering, technical design discussions, sprint planning, estimation, and production support activities.
  • Troubleshot production issues, resolved bugs, and implemented continuous improvements to enhance application stability and user experience.

What We Expect From You

  • Ability to work in a fast-paced environment while adapting to changing priorities.
  • Focused and detail-oriented, while knowing when to seek help from others.
  • Excellent written and verbal communication skills to articulate problems and solutions to both technical and non-technical audiences.
  • Superior troubleshooting and analytical skills to determine the root cause of issues.
  • Proactively identify areas of improvement and work to prevent issues from occurring.
  • A self-starter with an appreciation for tackling technical challenges of varying complexity.
  • Diligent in decision-making and able to justify your actions confidently.

Why Join Us?

  • Be part of a product-based organization solving real-world business challenges through innovative technology.
  • Gain exposure to modern technologies, cloud platforms, and AI-driven innovations while working on impactful products.
  • Experience a collaborative, transparent, and employee-first work culture built on trust and ownership.
  • Enjoy a healthy work-life balance with flexibility and a focus on outcomes.
  • Work in an environment with minimum micromanagement, where you're empowered to take ownership , accountability and make decisions.
  • Accelerate your career through a learning-oriented culture that encourages continuous upskilling and professional growth.

Rescheduling Policy

We do not encourage rescheduling interviews due to the limited availability of interview panel slots. Any request to reschedule an interview must be communicated at least one day in advance might be considered.

Frequently Asked Questions

Is the salary disclosed for the Senior / MERN Stack Developer position at paxcom?
The salary for this Senior / MERN Stack Developer role at paxcom is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior / MERN Stack Developer position at paxcom located?
This Senior / MERN Stack Developer role at paxcom is based in Gurugram, HR, India, Mohali, PB, India. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior / MERN Stack Developer role at paxcom full-time or part-time?
This is listed as a FULL TIME position. It is posted as a Senior / MERN Stack Developer role in the Web Development department at paxcom.
Which team or department does the Senior / MERN Stack Developer at paxcom belong to?
This Senior / MERN Stack Developer position is part of the Web Development department at paxcom. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior / MERN Stack Developer position at paxcom?
Click the "Apply Now" button on this page. You will be redirected to paxcom's official application portal hosted on keka where you can submit your application directly.
When was the Senior / MERN Stack Developer job at paxcom posted?
This Senior / MERN Stack Developer position at paxcom was posted on Jul 14, 2026. Apply as soon as possible โ€” early applications are often reviewed first.
Senior / MERN Stack Developer
paxcom
Apply for this role โ†—

You'll be redirected to paxcom's official application page on keka.