
- 5+ years of experience in backend development with a strong focus on Node.js and TypeScript.
- Strong understanding of Node.js frameworks.
- Proficiency in TypeScript, with experience in building scalable applications.
- Solid understanding of RESTful API design, WebSocket, and asynchronous programming patterns.
- Experience with databases (SQL/NoSQL), including MySQL, MongoDB, Redis, etc.
- Familiarity with blockchain technologies and cryptocurrency exchanges is a plus.
- Strong knowledge of security principles and best practices for web applications.

About KoinBX
About
KoinBX is India's most trusted and fastest-growing crypto exchange, dedicated to providing a secure, compliant, and user-friendly platform for crypto enthusiasts and traders across India. As the most trusted and fastest-growing crypto exchange, KoinBX is your gateway to the future of finance, with a user-centric approach, advanced security measures, and an extensive array of cryptos. Our vision is to be the cornerstone of a future where every individual, regardless of background, discovers and harnesses the boundless opportunities of digital assets. KoinBX opens the doors to a future where digital assets play a transformative role in shaping the financial landscape. Our mission is to empower traders by offering a secure and trusted crypto trading platform that is easily accessible to all. We promise to be the gateway ushering in a future of limitless financial possibilities in the realm of digital assets. We provide advanced tools and confidence to navigate the Indian crypto market. We are proud to be 100% compliant with Indian regulations, safeguarding users' funds through robust security measures, including advanced encryption techniques and multi-factor authentication. With over 120 listed cryptos and 150+ active trading pairs, including cryptos like Bitcoin, Ethereum, and Ripple, we provide a comprehensive platform with an intuitive interface, real-time portfolio tracking, and timely price alerts for informed trading decisions. At KoinBX, we offer a wide suite of features designed to meet the diverse needs of both beginner and experienced traders. From instant KYC authentication to low trading fees and high liquidity, our platform is equipped with everything you need to trade cryptos. Join the 5 million+ strong crypto community on KoinBX and begin your crypto journey today. Whether you're a seasoned trader or just getting started, KoinBX is your trusted partner for all your cryptocurrency trading needs.
Candid answers by the company
KoinBX is your gateway to the future of finance, with a user-centric approach, advanced security measures, and an extensive array of cryptos.
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Job description
- Database Design & Development:
- Design, implement, and maintain PostgreSQL databases.
- Develop efficient schemas, indexes, and stored procedures to optimize data performance.
- Backend Development:
- Develop RESTful APIs and backend services using Node.js.
- Integrate databases with backend applications for seamless data flow.
- Query Optimization & Performance Tuning:
- Optimize SQL queries for performance and scalability.
- Monitor database health and troubleshoot slow queries or deadlocks.
- Security & Compliance:
- Implement database security best practices, including role-based access control (RBAC) and encryption.
- Ensure compliance with industry standards like GDPR, HIPAA, etc.
- Data Migration & Backup:
- Develop and maintain data migration scripts between different PostgreSQL versions or other databases like mongodb.
- Set up and manage database backup and recovery strategies.
- Write efficient SQL queries and manage database schemas using PostgreSQL.
- Build RESTful APIs and integrate third-party APIs/services.
- Optimize application performance and troubleshoot production issues.
- Ensure data security and protection practices are followed.
- Write clean, maintainable code and participate in code reviews.
Skills Required:
- 7+ years of experience as software engineer.
- Experience in Dot.Net technologies - Asp.Net MVC, WebAPI, .NetCore
- Experience in ORM like Entity Framework /Dapper
- Experience with Object-Oriented Design and SOLID principles
- Experience with Unit Testing, Mocking and Dependency Injection frameworks
- Experience with SQL Server, NoSQL or other database technology
- Experience with software quality, testing procedures and build automation tools
- Knowledge of the Principles & Patterns of Agile Software
- Ability to understand and troubleshoot existing code and maintain existing systems.
- Ability to identity performance bottlenecks.
- Experience working with version control tools such as GIT and CI/CD tools.
Responsibilities
Drive new feature development - from ideation to PoC to testing to scalable production deployments
Writing reusable, testable, and efficient code
Implementing highly scalable, secure, robust, and fault-tolerant systems
Working on continuously improving tools and systems Required Skills
Knowledge of relational databases (MySQL, Postgres) and NoSQL
Demonstrable experience with microservices (design, deployment, monitoring, etc.)
Strong proponent for best practices and code quality
Experience in architecting & building real-time, large scale software applications.
Excellent command over Data Structures and Algorithm Proficiency in implementation of algorithms and use of advanced data structures to solve problems in computing.
Bring software engineering and product delivery experience, with a strong background in algorithms.
Understanding fundamental design principles behind a scalable application.
Good communication skills
Strong Problem solving and analytical skills
Experience in Fintech Industry is a plus
About the company.
It is India's largest Corporate Employee Benefits Platform. Founded by alumni of UCLA, Amazon, and Microsoft. Our major verticals are Corporate Perks, Rewards & Recognition, and financial solutions. We are currently partnered with more than 250+ corporates, including Concentrix, RBS, Fidelity, Walmart, Amazon, etc., whose employees are offered exclusive privileges through our 10,000+ brand partners across categories It is leading the employee benefits market in India which pegged at $2 billion and growing.
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:
- At least 2.5 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large scale social or location-base
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.
Responsibilities
- Integration of user-facing elements developed by front-end developers with server side logic
- Writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Implementation of security and data protection
Skills And Qualifications
- Strong proficiency with JavaScript
- Knowledge of Node.js and frameworks available
- 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
- Understanding accessibility and security compliance
- User authentication and authorization between multiple systems, servers, and environments
- Integration of multiple data sources and databases into one system
- Understanding fundamental design principles behind a scalable application
• Develop and maintain all server-side network components
• Ensure optimal performance of the central database and responsiveness to front-end requests
• Collaborate with Frontend Developers on the integration of elements
• Working knowledge of socket programming
• Understand Facebook, Google, Twitter APIs
• Design customer-facing UI and backend services for various business processes
• Develop high-performance applications by writing testable, reusable, and efficient code
• Implement effective security protocols, data protection measures, and storage solutions
• Run diagnostic tests, repair defects, and provide technical support
• Document node.js processes, including database schemas, as well as prepare reports
• Recommend and implement improvements to processes and technologies
• Keep informed of advancements in the field of node.js development
• Extracting data from various social media and web via scraping or official API
Profile Requisites
• Bachelor's Degree in Computer Science, Information Science, or similar
• At least 4 years' experience as a node.js developer
• Extensive knowledge of JavaScript, web stacks, libraries, and frameworks
• Knowledge of frontend technologies such as HTML5 and CSS3
• Should have extensive experience with MongoDB
• Experience with a caching layer like redis
• Familiarity with Facebook, Google & Twitter APIs
• Familiarity with social media login and extracting data from authentication
• Experience with AWS services like SNS, SQS, EC2 instances, and Lambda
• Experience with Jenkins and Docker
• Familiarity with scraping from web and social media
• Familiarity with creation and working with proxies
• Proficient in unit testing framework like Mocha
• Experience in integrating 3rd party APIs
• Experience with elastic search would be great
• Superb interpersonal, communication, and collaboration skills
• Exceptional analytical and problem-solving aptitude
• Should be able to think of optimized solutions and scalable solution
• Developing and maintaining all server-side network components.
• Creating database schemas that represent and support changing business processes thereby
ensuring optimal performance of the central database and responsiveness to front-end requests.
Integrating multiple data sources & databases in one system
• Collaborating with front-end developers on the integration of elements.
• Designing customer-facing UI and back-end services for various business processes.
• Developing & implementing low-latency & high-performance applications by writing testable,
reusable, and efficient code.
• Implementing User authentication and authorization between multiple systems, servers, and
environments
• Implementing effective security protocols, data protection measures, and storage solutions.
• Implementing automated testing platforms and unit tests. Running diagnostic tests, repairing
defects, and providing technical support.
• Documenting Node.js processes, including database schemas, as well as preparing reports.
• Recommending and implementing improvements to processes and technologies.
• Keeping informed of advancements in the field of Node.js development
Desired Candidate Profile :-
• Strong proficiency with JavaScript & ES6
• Good Knowledge of Node.js and frameworks available for it such as Express, HapiJS, Mongoose,
Sequelize, etc.
• Good understanding of server-side templating languages such as Handlebars, EJS, etc
• Good knowledge of MongoDB, its limitation and workarounds, replica sets, sharding, clustering
• Basic understanding of front-end technologies, such as HTML5, and CSS3
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Understanding accessibility and security compliance
• 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
• Proficient understanding of code versioning tools, such as Git
• Proficient understanding of API testing tools, such as Postman
• Superb interpersonal, communication, and collaboration skills
• Exceptional analytical and problem-solving aptitude









