Senior Engineer/Principal Engineer - Node.js

About the Role

We are looking for a Node Backend Developer to design, develop, and maintain the server-

side logic for our next-generation healthcare platform. You will work closely with cross-

functional teams to build high-performance, scalable, and secure applications that power

seamless experiences for hospitals, insurers, and healthcare professionals. The ideal

candidate has strong Node.js and Express expertise and can contribute to the

development of robust backend systems and APIs.

Responsibilities

Backend Development & API Design

• Design and implement RESTful and GraphQL APIs using Node.js and Express

• Develop microservices architecture for scalable and maintainable backend systems

• Optimize database queries and enhance performance of existing systems

• Write clean, maintainable code following best practices and design patterns

System Integration & Database Management

• Work with SQL and NoSQL databases (MySQL, PostgreSQL, MongoDB)

• Integrate with third-party services and APIs (hospital systems, insurance platforms)

• Implement caching mechanisms and message queues for improved performance

• Design and manage database schemas, migrations, and data models

Security & Compliance

• Ensure adherence to healthcare security standards (HIPAA, GDPR, ABDM, etc.)

• Implement authentication, authorization, and data encryption mechanisms

• Follow secure coding practices and conduct code security reviews

• Address security vulnerabilities and implement fixes

Collaboration & Process Improvement

• Work closely with frontend developers, DevOps engineers, and product managers

• Participate in code reviews, sprint planning, and technical discussions

• Contribute to CI/CD pipelines and deployment automation

• Document APIs, services, and system architecture

Required Skills & Qualifications

• 2+ years of experience in backend development using Node.js

• Strong proficiency with Express.js framework and RESTful API design

• Experience with relational databases (MySQL, PostgreSQL) and SQL

• Knowledge of microservices architecture and containerization (Docker)

• Understanding of version control systems (Git) and CI/CD workflows

• Strong problem-solving abilities and debugging skills

• Excellent communication and collaboration skills

Nice to Have

• Experience with AI/ML integration in backend systems

• Familiarity with healthcare or insurance industry applications

• Knowledge of cloud platforms (AWS, Azure, GCP)

• Experience with NoSQL databases (MongoDB, Cassandra)

• Understanding of event-driven architecture and message queues (Kafka, RabbitMQ)

• Proficiency in additional programming languages (Python, JavaScript)

What You'll Gain

• Opportunity to build scalable solutions for mission-critical healthcare operations

• Work in a fast-paced, innovative environment with cutting-edge technologies

• Exposure to AI-driven healthcare solutions and enterprise integrations

• Growth potential into Senior Backend Developer or Backend Team Lead roles

Required Skills/Qualifications: 

∙         B.Tech/MCA in Comput

Required Skills/Qualifications: 

Any Backend Technology is acceptable

∙         B.Tech/MCA in Computer Science or equivalent with 1-3 years’ experience with server-side web application development.

∙         Extensive development experience using LAMP or MEAN stack, RESTful web services or Node.js, HTML and CSS.

∙         Good understanding of Data structures and Relational Databases like MySQL or NoSQL Databases like MongoDB.

∙         Experience working with services in AWS such as EC2, RDS, and ELBs and have knowledge of VPCs.

∙         Experience with server side and client side MVC frameworks, Kafka Ansilble,Jenkins.

∙         Exposure to Continuous Integration (CI) and Continuous Deployment (CD), automated testing and agile development methods.

∙         Understanding of Version Management Tools like GitHub.

er Science or equivalent with 1-3 years’ experience with server-side web application development.

∙         Extensive development experience using LAMP or MEAN stack, RESTful web services or Node.js, HTML and CSS.

∙         Good understanding of Data structures and Relational Databases like MySQL or NoSQL Databases like MongoDB.

∙         Experience working with services in AWS such as EC2, RDS, and ELBs and have knowledge of VPCs.

∙         Experience with server side and client side MVC frameworks, Kafka Ansilble,Jenkins.

∙         Exposure to Continuous Integration (CI) and Continuous Deployment (CD), automated testing and agile development methods.

∙         Understanding of Version Management Tools like GitHub.

Key Responsibilities & Requirements

You should primarily be a backend developer or full stack developer, very good at code reviews and code optimization. Our products depend on processing large amounts of data and having fast response times is absolutely essential.

You will have the opportunity to

• Take responsibility of building systems for scale
• Manage our backend systems and database optimizations
• Assist in key decisions and design architecture that drives development across products
• Define processes and help with efficient functioning of the team
• Work with cross-functional teams to ensure the products are scalable, maintainable and secure

What we expect from you:

• We work on Ruby on Rails but you can have 2+ years of experience as backend developer in any language
• Have a solid grasp of OOP, databases and automated testing methodologies.
• Know how to manage sprint and ensure tasks are completed within the timeline
• Design and implementation of low-latency, high-availability, and performant applications
• Strong understanding of SQL databases
• Proficient knowledge of various authentication methods like JWT, OAuth etc..
• Perform peer code reviews and Code audit - Analyze existing code and remediate performance issues within existing applications

Having seen over 10x growth in 2021 alone, we are expanding our scope of products to cater to the fast growing creator economy and help creators monetize in ways beyond influencer marketing. We are also looking at tremendous growth in the next few years, standing at the verge of building something huge!

Come join our team of developers if a fast learning environment in a high growth industry excites you.

About Winkl

Please check out our product before applying to this position -
* Website - https://winkl.co
* Team - https://winkl.co/about
* Android App - https://play.google.com/store/apps/details?id=co.winkl.app&;amp;hl=en
* iOS App - https://www.winkl.co/app

Winkl is a technology company that is changing how influencer marketing is done. From a manual process earlier to an automated and data-driven process with Winkl. More on this here.

Leveraging data & technology helps Winkl scale influencer marketing to a level that wasn't possible earlier. This has helped Winkl power influencer campaigns for top brands in India like Flipkart, Amazon etc.

Culture & Expectations

* At Winkl, no one tells you what to do. We don't micromanage. We don't spoon feed. As long as you're willing to learn new things, are proactive, initiate activities on your own, make mistakes and learn from them, take responsibility, stick to your word of getting things done, we think you'd be a great fit at Winkl.
* On a day to day basis, you'll get to be an important part of a high growth startup as it scales.
* You'll receive all possible support from your team at Winkl to help you succeed. 
* Being highly accountable is a non-negotiable requirement