Node.js Developer

Job Title : Backend Engineer (AI-First | FinTech/Crypto)

Experience : 3 to 6 Years

Location : Gurugram (Sector 49)

Working Hours : 10:00 AM – 6:00 PM

Work Mode : On-site | 6 Days Working

Employment Type : Full-time

Role Overview :

This is not a typical ticket-based engineering role. You will take end-to-end ownership of systems—designing architecture, building scalable solutions, and solving real-world performance challenges.

We operate in an AI-first engineering environment, leveraging advanced tools and automation workflows to build high-performance distributed systems.

Mandatory Skills :

Java/Spring Boot or Node.js, System Design (HLD/LLD), Distributed Systems, Event-Driven Architecture (Kafka/RabbitMQ), Low-Latency APIs, PostgreSQL/MongoDB, CI/CD, Docker/Kubernetes, AI-assisted development (Copilot/Cursor/Claude)

Key Responsibilities :

• Design and build scalable backend systems (Java/Spring Boot, Node.js, or similar).
• Architect and implement event-driven systems (Kafka, RabbitMQ, pub/sub).
• Develop secure and reliable financial systems with strong data integrity.
• Solve scalability and performance challenges in fintech/crypto environments.
• Own features end-to-end: design → development → deployment → monitoring.
• Work with real-time data pipelines (WebSockets, streaming, event sourcing).
• Define service contracts and optimize system architecture.

AI-First Engineering (Must-Have Mindset) :

You will :

• Use tools like GitHub Copilot, Cursor, and Claude in daily development
• Follow spec-driven development using structured instructions
• Review, validate, and ship AI-generated code with strong engineering judgment

Core Requirements :

• 3+ years of backend development experience.
• Strong expertise in Java (Spring Boot) or Node.js.
• Solid understanding of System Design (HLD/LLD, Distributed Systems).
• Experience with event-driven architectures (Kafka, RabbitMQ, async pipelines).
• Hands-on experience building low-latency, high-throughput systems.
• Strong database knowledge (PostgreSQL, MongoDB, etc.).
• Understanding of security, performance optimization, and reliability.
• Experience with CI/CD, Git, Docker, Kubernetes.
• Exposure to React / React Native is a plus.

Good to Have (Differentiators) :

• Experience in FinTech / Crypto / Web3 / Blockchain.
• Built systems for trading, payments, or real-time financial data.
• Experience with AI agents, automation pipelines, or agent-based systems.
• Exposure to parallel AI workflows (coding / testing / refactoring).
• Contributions to open source or technical blogs.
• Experience handling production-scale systems.

Full stack Developer (Ref.ID: VRPL-FSD-Chn-0326)

No. of Positions: 2 Nos. Senior 1 No. Junior 1 No.

API Development & Architecture:

Design and develop scalable RESTful APIs using Node.js & TypeScript

Build modular, reusable, and clean backend architecture

Implement authentication & authorization (JWT / OAuth / Role-based access)

Ensure API security best practices

Write well-structured documentation (Swagger / Postman)

Real-Time Communication (Sockets):

Develop real-time features using WebSockets / Socket.io

Implement:

Live tracking

Real-time notifications

Status updates

Chat systems

Optimize socket performance and reconnection handling

Ensure scalability under concurrent user load

Database & Data Layer (PostgreSQL):

Design scalable and optimized database schemas

Write complex SQL queries & joins

Implement indexing & query optimization

Handle transactions and concurrency control

Work with ORMs like Prisma / TypeORM (preferred)

Maintain database security and backup strategies

Ensure data security and backups

Performance & Scalability:

Optimize API response times

Implement caching strategies (Redis preferred)

Design rate limiting and throttling mechanisms

Ensure system reliability & fault tolerance

Handle background jobs & queues

Deployment & DevOps Collaboration:

Deploy applications on AWS / GCP

Work with Docker containers

Implement CI/CD pipelines

Monitor logs & performance metrics

WhatsApp Business Integration:

Integrate WhatsApp Business API (Cloud / On-Premise)

Work with providers like Exotel / Twilio (preferred)

Implement Template messaging

OTP authentication

Notifications & alerts

Two-way communication

Manage webhook events and delivery tracking

Ensure compliance with WhatsApp policies

Required Skills:

Strong proficiency in Node.js

Hands-on experience with TypeScript

Strong experience in PostgreSQL

Experience building RESTful APIs

Experience with WebSockets / Socket.io

Good understanding of system design & architecture

Git version control

Knowledge of API security best practices

Preferred Skills:

Experience in real-time platforms (ride-hailing, delivery, chat systems)

Redis for caching

Message queues (Kafka / RabbitMQ / BullMQ)

Microservices architecture

Payment gateway integration

Cloud infrastructure knowledge

Soft Skills:

Strong analytical, problem-solving skills, and debugging skills

Startup mindset & ownership attitude

Ability to work in fast-paced startup environment and work independently

Good communication skills in all aspects

Role : Nodejs developer

Please find below the JD for the Nodejs developer..

 Role: NodeJs Developer 

We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. A basic understanding of front-end technologies is necessary as well. Responsibilities

 • Collaborate with other members of the team, such as front-end developers

 • Writing reusable, testable, and efficient code 

• Design and implementation of low-latency, high-availability, and performant applications 

• Implementation of security and data protection

 • Integration of data storage solutions • Writing unit test cases • Documenting application changes and developing updates. 

Skills 

• Strong proficiency with JavaScript 

• Experience of Node.js and frameworks available such as Express

 • Practical experience with REST, PostgreSQL, WebSocket, MongoDB, Redis. 

• Understanding the nature of asynchronous programming and its quirks and workarounds 

• User authentication and authorization between multiple systems, servers, and environments 

• Integration of multiple data sources and databases into one system 

• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform • Creating database schemas that represent and support business processes

 • Implementing automated testing platforms and unit tests

 • Proficient understanding of code versioning tools, such as Git

 • Good understanding of front-end technologies, such as HTML5, and CSS3  

We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.

Location Preferences

• Candidates located in Kerala are preferred.

Skills and Qualifications

• Strong proficiency with JavaScript, React, and Redux

• Knowledge of Node.js and frameworks available for it(particularly Express,Loopback)

• Understanding the nature of asynchronous programming and its quirks and workarounds

• Good understanding of server-side templating languages

• Good understanding of server-side CSS preprocessors

• Basic understanding of front-end technologies, such as HTML5, and CSS3

• User authentication and authorization between multiple systems, servers, and environments

• Integration of multiple data sources and databases into one system

• Understanding Cloud based application deployment.

• Understanding fundamental design principles behind a scalable application

• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform

• Creating database schemas that represent and support business processes

• Implementing automated testing platforms and unit tests

• Proficient understanding of code versioning tools, such as Git

As a Node.js Developer at Primathon Technology, you will be responsible for designing, developing, and maintaining server-side applications using Node.js. You will collaborate with cross-functional teams to implement new features, optimize existing functionality, and ensure the best possible performance, security, and user experience. Key Responsibilities:

1. Develop and maintain server-side applications using Node.js, ensuring optimal performance and scalability.

2. Collaborate with front-end developers, designers, and other stakeholders to implement new features and enhance existing functionality.

3. Write clean, maintainable, and efficient code while adhering to coding standards and best practices.

4. Participate in code reviews to ensure code quality and consistency within the development team.

5. Troubleshoot and debug issues across the application stack, identifying and resolving performance bottlenecks and other challenges. 6. Implement security and data protection measures, ensuring the application's compliance with industry standards.

7. Optimize applications for maximum speed and scalability. Qualifications and Skills:

1. Bachelor's degree in Computer Science, Engineering, or a related field.

2. Minimum of 2 years of professional experience as a Node.js Developer

. 3. Proficient in server-side JavaScript programming using Node.js.

4. Strong understanding of asynchronous programming, including Promises and async/await.

5. Experience with RESTful API development and integration.

6. Familiarity with front-end technologies such as HTML, CSS, and JavaScript frameworks (e.g., React, Angular, Vue) is a plus.

7. Knowledge of database systems (e.g., MongoDB, MySQL, PostgreSQL) and data modeling.

8. Experience with version control systems (e.g., Git) and collaborative development workflows.

9. Good understanding of software development lifecycle (SDLC) and agile methodologies.

10. Strong problem-solving skills and attention to detail

What are we looking for?

A passionate backend developer Node.js specifically.

Who Should apply?

Apply only If you

● Think you are atleast 8 on 10 in Node.js

● And have been coding in Node.js for 3+ years

● Are super enthusiastic about building something that adds immense value to the lives of atleast 10Mn people

● Have built things single handedly

● Have immense hunger to learn, grow and prove yourself

Shortlisting Criteria

You will have to do a coding test.

We respect your time and are in no way doubting your skills, but that’s how you would like to hire someone in your team, right?

Why work with us?

Infinite freedom & ownership.

Work directly with the founders.

Zerodha the most profitable startup in the country, only has a 30 member tech team. We’re presently a 4 member tech team, you will be number 5.

Like you, we too love solving for time and space complexities.

What is the company about?

We are creating a stock market of creators.

Where Social Media Influencers can get funded by their fans and in return issue them coins which represent a stake in their future income.Imagine if you had invested in Tanmay Bhatt or CarryMinati 5 years back

You will be responsible for developing features on the application and integrations end to end. You will be working closely with the Technical Team to come up with high-quality, resilient, and highly performant applications.‍

• Design and develop SaaS-based applications based on microservices architecture.
• Work on the core backend and ensure it meets the performance benchmarks.
• API and Integrations
• Designing and developing APIs for the front end to consume.
• Constantly improve the architecture of the application by clearing the technical backlog.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages.
• Work on the front end with ReactJS is a plus point.

An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.

• Education - BE/MCA or equivalent
• 5+ years of experience
• Agnostic/Polyglot with multiple tech stacks
• OAuth, API Integrations.
• Agnostic/Polyglot with multiple tech stacks.
• Worked on open source technologies – NodeJS, ReactJS, MySQL, NoSQL, MongoDB, CouchDB, DynamoDB, Clickhouse, Kafka
• Backend exposure – good knowledge of building and integrating APIs
• Efficient in building microservices in combining server & front-end.
• Knowledge of cloud architecture.
• Excellent knowledge and understanding skills on oAuth.
• Should have sound working experience with relational and columnar DB.
• Should be innovative and communicative in approach.
• Will be responsible for functional/technical track of a project.

You will work with a top-notch tech team, working closely with the architect and engineering head. 

A wholesome opportunity in a fast-paced environment that will enable you to juggle between concepts, yet maintain the quality of content, interact and share your ideas and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the benefits of being at Compass.

We at Compass strive to make selling fun with our SaaS incentive gamification product.  Compass is the #1 gamification software that automates and digitizes Sales Contests and Commission Programs. With game-like elements, rewards, recognitions, and complete access to relevant information, Compass turbocharges an entire salesforce. Compass also empowers Sales Managers with easy-to-publish game templates, leaderboards, and analytics to help accelerate performances and sustain growth.

We are a fun and high-energy team, with people from diverse backgrounds - united under the passion of getting things done. Rest assured that you shall get complete autonomy in your tasks and ample opportunities to develop your strengths.

If you find this role exciting and want to join us in Bangalore, India, then apply by clicking below. Provide your details and upload your resume. All received resumes will be screened, shortlisted candidates will be requested to join for a discussion and on mutual alignment and agreement, we will proceed with hiring.