BackEnd Engineer

Mandatory (Experience 1): Must have 9+ years in backend engineering with Java, Spring/Spring Boot, and microservices building large and scalable systems with clear production scale or reliability impact (latency, throughput, uptime, etc.) mentioned in the resume

Mandatory (Experience 2): Must have been SDE-3 / Tech Lead / Lead SE for at least 2.5 years (should be there in the resume titles)

Mandatory (Tech skills 1): Strong in DSA, system design, design patterns, and problem-solving

Mandatory (Tech skills 2): Proven experience building scalable, reliable, high-performance distributed systems with architecture ownership and experience in core backend/platform services rather than feature teams

Mandatory (Tech skills 3): Hands-on with SQL/NoSQL databases, REST/gRPC APIs, concurrency & async processing

Mandatory (Tech skills 4): Experience in AWS/GCP, CI/CD pipelines, and observability/monitoring

Mandatory (Communication): Excellent ability to explain complex technical concepts to varied stakeholders

Mandatory (Company) - Top New Age, Fast-scaled, Tech-First Product Companies (Like Series B+ / Unicorn Indian startups, or Tech-first Global companies like Amazon, Google, Microsoft etc)

Mandatory (Stability): Must have stayed for at least 2 years with each of the previous companies

Mandatory (Education): B.Tech in computer science or related field from Tier 1, Tier 2 colleges

Mandatory (Note 1): Education can be ignored for candidates with proven experience in strong, reputed product companies

Job Title : Node.js Developer

Experience : 5+ Years

Location : Gurgaon – Sector 43

Work Mode : 5 Days Work From Office (WFO)

Interview Mode : Direct Walk-in

Job Summary :

We are looking for an experienced Node.js Developer with 5+ years of hands-on experience in backend development and building scalable applications.

The ideal candidate should have strong problem-solving skills and experience working in a fast-paced product or service-based environment.

Key Responsibilities :

• Develop and maintain server-side applications using Node.js.
• Design and implement RESTful APIs and microservices.
• Work with databases like MongoDB / MySQL / PostgreSQL.
• Integrate third-party APIs and services.
• Ensure performance, security, and scalability of applications.
• Collaborate with frontend developers, QA, and DevOps teams.
• Write clean, reusable, and efficient code.
• Participate in code reviews and technical discussions.

Required Skills :

• Strong expertise in Node.js and JavaScript.
• Experience with Express.js or similar frameworks.
• Knowledge of Microservices architecture.
• Hands-on experience with MongoDB / SQL databases.
• Experience with Git and CI/CD processes.
• Good understanding of cloud platforms (AWS preferred).
• Strong debugging and optimization skills.

Preferred Skills :

• Experience with Docker / Kubernetes.
• Knowledge of Redis, Kafka, or message queues.
• Understanding of Agile methodologies.

Technical Expertise

• Proficiency in Node.js or Python – Hands-on experience with backend development frameworks

and best practices.

• Expertise in SQL/NoSQL Databases – Strong experience with MySQL, PostgreSQL, MongoDB, or

DynamoDB.

• ElasticSearch & API Development – Strong knowledge of REST APIs, ElasticSearch, and high-

availability system design.

• Cloud & DevOps – Hands-on experience with AWS, Kubernetes, Docker, and CI/CD pipelines.

• Data Structures & Algorithms – Strong command over data structures, algorithms, OOD, and

design patterns.

• Version Control & Deployment – Experience with Git, GitHub Actions, and other deployment

systems.

• High-Performance Systems – Implemented solutions that handle high availability, concurrency,

and low-latency requirements.

Key Responsibilities:

• Rewrite existing APIs in NodeJS.
• Remodel the APIs into Micro services-based architecture.
• Implement a caching layer wherever possible.
• Optimize the API for high performance and scalability.
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required:

1. At least 3 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
2. Excellent hands-on experience using MySQL or any other SQL Database.
3. Good knowledge of MongoDB or any other NoSQL Database.
4. Good knowledge of Redis, its data types, and their use cases.
5. Experience with graph-based databases like GraphQL and Neo4j.
6. Experience developing and deploying REST APIs.
7. Good knowledge of Unit Testing and available Test Frameworks.
8. Good understanding of advanced JS libraries and frameworks.
9. Experience with Web sockets, Service Workers, and Web Push Notifications.
10. Familiar with NodeJS profiling tools.
11. Proficient understanding of code versioning tools such as Git.
12. Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
13. Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
14. Experience building a large scale social or location-based app.

Desired Candidate :

• Experience in Node.JS working with large scale backend applications
• Expertise in any Relational or NoSQL databases and any of caching databases
• Experience in integrating with RESTful/GraphQL APIs and Microservice APIs
• Good problem solving and debugging skill
• Good knowledge of engineering excellence: Unit Testing/TDD, Code quality,
• Documentation, CI&CD
• Exposure on event-driven, asynchronous I/O
• Experience in Linux development and AWS ecosystem tools
• Experience in non-functional requirements (Scalability, Performance optimisation, Security)

What you can achieve :

• Empowering Entrepreneurial Spirit: Whatever your role is, we'll encourage you to reinvent and reinvigorate; achieving the best for CaratLane and you.
• Celebrating Your Contribution: We recognize and reward everyone who approaches their job with true passion, and drives performance.
• The Best of Tanishq and CaratLane: Work with a disruptive, new-age omni-channel brand, while being a part of India's most trustworthy organisation - the Tata Group.

We're looking for exprienced Python developers with over 2+ years of production experience and strong expertise in building web applications and APIs using Python, Django and DRF. We are looking for cadidates who are go-getters and are leaning towards leadership positions. Candidates must have a proven history of building, scaling, optimising and securing Python based backends and APIs using a microservice architecture.

Bonus Skills : Experience with ReactJs, Node.js, FastAPI

We would prefer candidates who can join immediately or are currently serving their notice period. Jumpers please excuse, your application will be ignored

Key Skills Required

1. Proficiency in Python 3.x based web and backend development
2. Solid understanding of Python concepts
3. Strong experience in building web applications using Django
4. Experience building REST APIs using DRF or Flask
5. Experience with some form of Machine Learning (ML)
6. Experience in using libraries such as Numpy and Pandas
7. Hands on experience with RDBMS such as Postgres or MySQL including querying
8. Comfort with Git repositories, branching and deployment using Git
9. Working experience with Docker
10. Basic working knowledge of ReactJs
11. Experience in deploying Django applications to AWS,Digital Ocean or Heroku

Responsibilities

1. Understanding requirement and congributing to engineering solutions at a conceptual stage to provide the best possible solution to the task/challenge
2. Building high quality code using coding standards based on the SRS/Documentation
3. Building component based, maintainable, scalable and reusable backend libraries/modules.
4. Building & documenting scalable APIs on the Open Spec standard
5. Unit testing development modules and APIs
6. Conducting code reviews to ensure that the highest quality standard are maintained
7. Securing backend applications and APIs using industry best practices
8. Troubleshooting issues and fixing bugs raised by the QA team efficiently.
9. Optimizing code
10. Building and deploying the applications

• Employment type

  Full-time