Backend Developer

Job Title : Node.js Developer / Backend Developer

Experience : 4+ Years

Job Location : Mumbai – Andheri

Work Mode : Work From Office (5 Days a Week)

Job Type : Full-time Opportunity

Role Overview :

We are seeking an experienced Node.js / Backend Developer to design, develop, and maintain scalable backend systems.

The ideal candidate will have strong hands-on experience with Node.js, Nest.js, relational and NoSQL databases, and AWS cloud services.

You will work closely with frontend developers, DevOps, and product teams to deliver secure, high-performance, and reliable backend solutions.

Mandatory Skills : Node.js, Nest.js, MongoDB, PostgreSQL, AWS, REST API development, strong backend fundamentals.

Key Responsibilities :

• Design, develop, and maintain scalable backend applications using Node.js & Nest.js

• Build and manage RESTful APIs and backend services

• Work with MongoDB and PostgreSQL for efficient data storage and retrieval

• Develop cloud-ready applications and deploy them on AWS

• Ensure application performance, security, and scalability

• Write clean, well-documented, and maintainable code

• Participate in code reviews and follow best engineering practices

• Troubleshoot, debug, and optimize existing applications

• Collaborate with cross-functional teams for end-to-end delivery

Required Skills & Qualifications :

• 4+ years of experience in Backend / Node.js development

• Strong hands-on experience with Node.js and Nest.js

• Experience working with MongoDB and PostgreSQL

• Good understanding of AWS services (EC2, S3, RDS, etc.)

• Experience building RESTful APIs

• Understanding of backend architecture, design patterns, and best practices

• Strong problem-solving and debugging skills

• Familiarity with version control systems (Git)

Good-to-Have Skills :

• Experience with microservices architecture

• Knowledge of Docker and CI/CD pipelines

• Exposure to message queues or event-driven systems

• Basic understanding of frontend-backend integration

Chai Finance is re−imagining payments in Korea and other international markets. We are a Series B funded startup backed by prominent VC firms Softbank and Hanwa Capital

Chai Raises series B+ funding round - https://bit.ly/33NALeY" target="_blank">https://bit.ly/33NALeY

https://techcrunch.com/2020/12/09/seoul-based-payment-tech-startup-chai-gets-60-million-from-hanhwa-softbank-ventures-asia/

More than 2 million users use CHAI eWallet to make payments in Korea.

Chai’s latest product is making the online payments space simpler and efficient. It provides a unified API for merchants to integrate with and manage all of the payment options available in Korea and South East Asia. It's currently used by 2000+ companies and processing multi-billion dollars in annualized volume. We are building a team to work on the product for South Asia Markets, and looking for engineers with a passion for fintech and digital payments.

PS: Chai (Korean) here stands for "Making a Difference" and not the 'Chai' in 'Chai Point'.


Culture and Values at Chai Finance

* You will be joining a team that stands for, as the company name 'CHAI' suggests - "Making a difference".
* You will be joining a culture that identifies more with Sports Teams rather than a 9 to 5 workplace.
* Your will have peers who are/have
** Highly Self Driven with A sense of purpose
** High Energy Levels - Building stuff is your sport
** Ownership - Solve customer problems end to end - Customer is your Boss
** Hunger to learn - Highly motivated to keep developing new tech skill sets


Who you are ?

* You are an athlete and building apps is your sport.
* Your passion drives you to learn and build stuff and not because your manager tells you to.
* Your work ethic is that of an athlete preparing for your next marathon. Your sport drives you and you like being in the zone.
* You are NOT a clockwatcher renting out your time, and NOT have an attitude of "I will do only what is asked for"

* Work on new product features of our international product
* Uphold our high engineering standards and bring consistency to the many codebases and processes you will encounter
* Collaborate with stakeholders across the organization such as experts in - product, design, infrastructure, and operations.

Here are some examples of our work
* Building intuitive, easy-to-use APIs for payment process.
* Integrating with local payment gateways in international markets.
* Building dashboard to manage gateways and transactions.
* Building analytics platform to provide insights.

* Have ideally 5+ Years of experience shipping high quality products. 
* Understands how to build scalable, resilient, and observable distributed systems.
* Must have built applications end to end taking full ownership
* Ability to work as both Individual contributor and mentor junior members in the team
* Experience working at payment gateways or aggregators or payment related APIs will be strongly preferred.
* Uphold best practices in engineering, security, and design
* Enjoy being a generalist working on both the frontend, backend, and anything it takes to solve problems and delight users both internally and externally
* Take pride in working on projects to successful completion involving a wide variety of technologies and systems

Brief:

We are pursuing a complex set of problems that involve building for an international audience and for an industry that has largely been service-centric. As an SDE at GradRight, you’ll bring an unmatched customer-centricity to your work, with a focus on building for the long term and large scale.

You’ll contribute to frameworks that enable flexible/scalable customer journeys and tying them with institutional knowledge to help us build the best experiences for students and our partners.

Responsibilities:

1. Contribute to design discussions and decisions around building scalable and modular architecture
2. Build clean, modular and scalable backend services
3. Participate in sprint ceremonies and actively contribute to scaling the engineering organization from a process perspective
4. Stay on top of the software engineering ecosystem and propose new technologies/methodologies that can be adopted
5. Contribute to engineering hiring by conducting interviews
6. Champion infrastructure as code mindset and encourage automation
7. Manage and mentor a small team of junior engineers

Requirements:

1. At least 4 years experience as an SDE, building large scale services
2. Extensive experience in at least one programming language and ability to write maintainable, scalable and unit-testable code
3. Strong understanding of software design principles and patterns
4. Excellent command over data structures and algorithms
5. Passion for solving complex problems
6. Good understanding of various database technologies with strong opinions around their use cases
7. Experience with performance monitoring and scaling backend services
8. Experience with microservices and distributed systems in general
9. Experience with team management
10. Excellent written and verbal communication skills

Good to have:

1. Experience working with node.js, MongoDB and Google Cloud
2. Experience in CI/CD and cloud infrastructure management
3. Worked on products that addressed an international audience
4. Worked on products that scaled to millions of users

About Us: 

We live in the realm of rising, ever evolving technology. From the cassette tape to nanotech skeletons, we’ve come a long way. Splitting an atom is no big deal – and who’d have thought that we’d talk through airwaves? Change is inevitable, and we’re the tide that brings it. 

At Relinns, we breathe tech solutions and embrace innovation with open arms. With over 4 years of experience, we've had phenomenal growth which acts as a testimony to the knowledge we've come to gather over time. We have been fortunate enough to get an opportunity to work with clients such as Apollo Tyres, Shahi Exports, Manchester City Football Club, etc. 

Our team is on the path of finding religion in the workplace of today. To find our way, we have three tools at our disposal: cutting edge technological tools, a meticulously dedicated work ethic, and crisp bow-tie professionalism. 

About the role:

We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the client. 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 client 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.

What You Need for this Position:

• Strong understanding of JavaScript, its quirks and workarounds.
• Basic understanding of TypeScript & its quirks and workarounds.
• Advanced knowledge of NPM and the most frequently used libraries (E.g: Socket.io, Underscore.js, Passport, etc.).
• Knowledge of any Node.JS ORM (Mongoose, Sequlize, Knex, etc.).
• Understanding of any of the following Node.JS frameworks: Express JS, Koa Js, Hapi JS or any other.
• Good understanding of OOP and data structures.
• JavaScript unit testing frameworks (prefer Unit.js, Mocha).
• Ability to write complex algorithms.
• Understanding of code versioning tools, such as {GIT / Mercurial / SVN}.

What You Will Be Doing:

• Develop and provide solutions on JavaScript frameworks
• Develop high-traffic, flawless web applications using Node.JS
• Participate in code and design reviews to ensure consistency in architecture and design/code practice
• Code with performance, scalability, and usability in mind
• Work on new tools in leading industry trends, with new and emerging technologies, prototypes and engineering process improvements
• Work closely with next-generation architecture development teams using cutting edge approaches and technologies

Top Reasons to Work with Us:

• We're a small, fast-paced growing team tackling huge new challenges every day.
• Learning new concepts while working with intellectual and exceptionally talented team
• Friendly and high growth work environment
• Competitive compensation

The ideal candidate is a highly resourceful and innovative developer with extensive experience in the layout, design and coding of websites specifically in PHP Laravel. You must also possess a strong knowledge of web application development using PHP programming language and MySQL Server databases. 

Responsibilities

• Perform a mix of maintenance, enhancements, and new development as required
• Conducting analysis of website and application requirements.
• Updating and altering application features to enhance performance.
• Finalizing back-end features and testing web applications.
• Responding to integration requests from front-end developers.
• Integrating data storage solutions.
• Troubleshooting application and code issues.
• Developing back-end portals with an optimized database.
• Writing back-end code and building efficient PHP modules
• Proven software development experience in PHP.
• Passion for best design and coding practices and a desire to develop new bold ideas.
• Good problem-solving skills.
• Familiarity with SQL/NoSQL databases.
• Proficient with code versioning tools including Git, Mercurial, CVS, and SVN.
• Previous experience creating scalable applications.
• Understanding of object-oriented PHP programming.

Qualifications

• Good knowledge and experience in web development and software design
• Expertise in front-end technologies (HTML, JavaScript, CSS), PHP frameworks, and MySQL databases
• Knowledge on web sockets, json is an added advantage.
• Good knowledge of relational databases, version control tools and of developing web services.
• Knowledge of front-end technologies including CSS3, JavaScript, and HTML5.
• Knowledge of PHP web framework Laravel.

Description

• Responsible for developing Web Applications.
• Design, Develop, enhance and test front-end, back-end web modules using Node.js, Express framework, My Sql and Mongo DB.
• Research and explore existing solutions, competition, to get a holistic understanding of the Design and development.
• Communicate and collaborate effectively with various teams for effective outcomes.
• Meet deadlines in a high intensity work environment 

Primary Skills :

• Proficient in Nodejs
• Understanding of Front-End Technologies
• Good Knowledge of Node
• Proficient in RESTful APIs and API Communications
• Good Grasp of Asynchronous Programming and Its Workarounds
• Database Schema Creation for Business Processes
• Working Knowledge in User Authentication and Authorization
• Write Efficient Code
• Implementing Data Protection
• Error-Handling Skills