
- 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.
Similar jobs
Skills:
Design and build web applications with React and TypeScript, ensuring high-quality and responsive
user interfaces.
Write unit tests and integration tests using Jest to ensure code reliability, performance, and
scalability.
Ensure performance optimization, code modularity, and maintainability of applications


Requirements / Experience:
- 4-8+ years of PHP application development experience
- Strong Experience using Laravel/CodeIgniter/ Symfonyframeworks
- Strong experience and theoretical knowledge of PHP
- Front end and back end development expertise
- JavaScript (Vue.js, React, node, Typescript, RequireJS)
- Front end frameworks (Bootstrap, Tailwind, etc.)
- Good background with SQL Databases (writing queries, optimization, query builders usage, ORMs)
- API development and documentation (OpenAPI)
- Troubleshooting (ability to react in the most effective manner to eliminate technical issues)
- Solution-Making (ability to propose the most effective technical solutions)
- NoSQL experience is nice to have
- Ability to work on existing live projects and do the modifications as required.
- Ability to work independently and in a team as well


Construction & Infrastructure is one of the industries, with the most complex problems in Supply Chain and they are fundamentally reengineering the way construction materials get procured. Their Clients include the biggest names in India & the World– The
LafargeHolcim Group, JSW Group, The Tatas and many others. They are backed by some of the world’s top marquee funds in their journey to create transparency and standardization to an otherwise opaque industry.
Your responsibilities:
● Understand the business context and build high quality code using proven design patterns
● Develop, test and deploy integrations required to meet business requirements
● Carry out unit tests and other quality control mechanisms to inform and validate the code and design
● Utilizing and monitoring cloud infrastructure resources (such as AWS, Azure) efficiently
● Participate in a highly fluid environment applying agile software development principles
● Ensure the coding standards are on-par with the best in the industry
Educational Qualifications:
● Bachelor's or Master’s degree in a quantitative field (e.g. Mathematics, Engineering, Computer Science).
Must have skills:
● 3+ years of work experience with mobile/web development
● Experience in working with either of languages: Go, Java, Scala
● Strong understanding of relational and non-relational databases (MySQL, PostgreSQL, MongoDB,
● Cassandra)
● Strong understanding of Message brokers
● Must have hands on experience in Restful APIs
● Must have a strong foundation of Data structures and Algorithms
● Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions
● or approaches to problems
● Ability to deploy features on a daily basis: should be good at time management and prioritization
● Hands-on experience in CI/CD principles and TDD
● Strong written and verbal English communication skills
Good to have skills:
● Experience in event-driven & asynchronous I/O frameworks
● Exposure to business process and workflow automation
● Working experience in process driven and data intensive business applications
● Experience in working on web infrastructure with React.js and React Native
Professional traits:
● Self-motivated, persistent and “Never Give Up” attitude
● Passion for innovation and adaptability to a lean startup culture
● Ability to work with minimal supervision, independently and / or as a member of a team



Job Responsibilities
✓ Perform the role of Technical Lead on assigned projects to drive solution design (especially backend) and API services development.
✓ Be the thought leader and champion for above mentioned technologies.
✓ Drive technical analysis for new projects including planning and driving proof-of-concepts, if needed.
✓ Drive tasks related to backend development by providing architectural and technical leadership to mid-tier and database developers.
✓ Conduct peer reviews as the lead into Git to confirmed that developed code meets acceptable standards and guidelines.
✓ Work closely with the rest of the leads, mid-tier development, front-end developers, database developers, etc. to ensure end-to-end integrity of the solution being developed.
✓ Work closely with the rest of the tech leads and senior engineering leadership team to ensure reuse where applicable to increase productivity and throughput.
✓ Conduct technical interview to staff open positions in the backend team.
✓ Delegate work and assignments to team members
✓ Collaborate with their team to identify and fix technical problems
✓ Analyze users' needs and then finding applications to serve them
✓ Drive assigned tasks related to SOC 2 certification and ensure compliance to defined controls for areas under lead’s purview.
✓ Guiding their team through technical issues and challenges
✓ Prepare Technical design documents which would help the team to understand the technical flow
✓ Active participation in customer calls especially discussions related to Technical/Architectural and provide inputs.
Required Experience:
✓ Backend Lead around 14 years of experience
✓ Server less Computing Architecture
✓ NodeJS, MySQL, Jenkins, Python, GitLab Technologies
✓ Good knowledge of AWS Cloud
✓ Full cycle AWS implementation experience
✓ Project experience in development and maintenance support for AWS web service and Cloudbased implementations
✓ Experience leading teams of up to 10 + professionals
Ability to manage multiple tasks and projects in a fast-moving environment
Educational Qualifications:
Engineering graduate or B. Tech/MCA with relevant major subjects like Computer Science
Roles and Responsibilities
1) Understand client requirements and functionalities.
2) Write well-designed, testable, efficient code.
3) Responsible for solving complex technical issues.
4) Ensure quality projects are delivered within defined timelines.
5) Active involvement in client communication to understand functional requirements.
6) Maintain high standards of quality for code, documentation and other deliverables.
At least 3 years' experience as a Node.js developer.
Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
Mandatory experience in MongoDB and MySql.
Knowledge of front-end technologies such as HTML5 and CSS3.
Superb interpersonal, communication, and collaboration skills.
Exceptional analytical and problem-solving aptitude.


Rejolut is one of the award-winning fastest-growing emerging tech company which is working on leading technology like Blockchain, ML & AI, Complex mobile & web apps, IoT, etc.
The ideal candidate will be responsible for developing a highly scalable and secure code.
Responsibilities:-
- Able to take the Extreme Ownership of modules/product/projects
- Able to learn & implement new technology/framework/library at God Speed
- Able to come with an optimal solution for the business problem
- Can handle calls with the client & customer to know their feedback
- Writing clean code & able to dig into other's code or open-source code.
Desired Candidate Profile:-
- Good problem-solving skills are a must
- Expertise in Node.js development, Javascript (hands-on Experience )
- Exposure to developing APIs with Node JS
- Knowledge of Node.js and frameworks available for it such as Express, sails.js, StrongLoop, etc
- Knowledge of SQL and NoSQL database
- Knowledge of tools like Docker, Git, Postman, JSdocs, etc.
- Basic understanding of front-end technologies, such as HTML5, and CSS3
- Added advantage (Python or Ruby or Golang)
- Self-motivated and able to drive the team
- Good communication and interpersonal skills
- Experience in working in fintech is a plus
How we are different
-We are a young and dynamic team who are obsessed with solving the business problem at scale.
-We are a technology agnostic company that focuses more on finding the optimal solution to the business problem rather than technology.
Why join us
- We provide a huge learning curve. Spending 1.5-2 years with us will put you 3 years ahead in the career.
- We work only on cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, ELM
- There are two technology Co-founder in the company who are pretty much hands-on and have earlier bult the Consumer application which is downloaded millions of times and are in leadership position in copanies like Samsung, Purplle, Loylty Rewardz.
- Get mentored by the best in the industry
- Flexible working hours
- Perks best in the industry
Responsibilities
1. Collaborate with teammates to define, design, and shape new features.
2. Design and develop backend API microservices using Node.js.
3. Design and develop applications in an AWS and GCP environment.
4. Design and implement low-latency, high-availability, and performant applications.
5. Write reusable, testable, and efficient code.
6. Troubleshoot, debug, and upgrade the software.
Requirements
1. Solid experience in Node.js.
2. Good experience using frameworks such as Express.JS or Restify.
3. Willing to learn HapiJS.
4. Hands-on experience with JavaScript Development.
5. Able to work independently and carry out a task to achieve the design goal with minimal supervision.
6. Good programming skills and communications.



