
Fullstack Developer
at One of our esteemed client located at Kolkata




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About Us
Intain is building a blockchain-based servicing platform for structured finance, backed by top VCs and already managing $5B+ in transactions. We're a 40-member team across India, Singapore & NYC, and 50% of our team are women. We blend AI + blockchain to solve real problems in capital markets.
🎥 What we do →
🧠 What You’ll Work On
- Build full-stack AI-driven fintech applications from scratch
- Design scalable microservices & integrate APIs with external systems (banking, RPA tools like Blue Prism/UI Path)
- Use GenAI tools (ChatGPT-4, Gemini) to solve real NLP use cases
- Drive cloud-native development on Azure, CI/CD, and DevSecOps workflows
- Collaborate with cross-functional teams in a flat, Agile environment
🛠️ Skills We're Looking For
- Frontend: React.js
- Backend: Python (Flask preferred), REST APIs
- AI/NLP: ChatGPT / Gemini / GenAI tools
- DBs: PostgreSQL / MySQL, MongoDB
- Tools: RabbitMQ, Git, Jenkins, Docker
- Cloud: Azure (preferred)
- Testing: Jest / Cypress
- Agile, startup-ready mindset
🌟 Bonus Points
- Angular, Redis, Elasticsearch
- UI/UX knowledge
- Security & accessibility best practices
🚀 Why Join Us?
- Work on cutting-edge AI & blockchain tech
- Flat team, fast decisions, global clients
- Remote flexibility + strong team culture
- Competitive compensation
Node.js Developer Responsibilities:
- Developing and maintaining all server-side network components.
- Ensuring optimal performance of the central database and responsiveness to front-end requests.
- Collaborating with front-end developers on the integration of elements.
- Designing customer-facing UI and back-end services for various business processes.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Implementing effective security protocols, data protection measures, and storage solutions.
- 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.
Node.js Developer Requirements:
- 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 front-end technologies such as HTML5 and CSS3.
- Superb interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude.
- Great organizational and time management skills.
- Availability to resolve urgent web application issues outside of business hours.
Job Title -Senior Java Developers
Job Description - Backend Engineer - Lead (Java)
Mumbai, India | Engineering Team | Full-time
Are you passionate enough to be a crucial part of a highly analytical and scalable user engagement platform?
Are you ready learn new technologies and willing to step out of your comfort zone to explore and learn new skills?
If so, this is an opportunity for you to join a high-functioning team and make your mark on our organisation!
The Impact you will create:
- Build campaign generation services which can send app notifications at a speed of 10 million a minute
- Dashboards to show Real time key performance indicators to clients
- Develop complex user segmentation engines which creates segments on Terabytes of data within few seconds
- Building highly available & horizontally scalable platform services for ever growing data
- Use cloud based services like AWS Lambda for blazing fast throughput & auto scalability
- Work on complex analytics on terabytes of data like building Cohorts, Funnels, User path analysis, Recency Frequency & Monetary analysis at blazing speed
- You will build backend services and APIs to create scalable engineering systems.
- As an individual contributor, you will tackle some of our broadest technical challenges that requires deep technical knowledge, hands-on software development and seamless collaboration with all functions.
- You will envision and develop features that are highly reliable and fault tolerant to deliver a superior customer experience.
- Collaborating various highly-functional teams in the company to meet deliverables throughout the software development lifecycle.
- Identify and improvise areas of improvement through data insights and research.
What we look for?
- 5-9 years of experience in backend development and must have worked on Java/shell/Perl/python scripting.
- Solid understanding of engineering best practices, continuous integration, and incremental delivery.
- Strong analytical skills, debugging and troubleshooting skills, product line analysis.
- Follower of agile methodology (Sprint planning, working on JIRA, retrospective etc).
- Proficiency in usage of tools like Docker, Maven, Jenkins and knowledge on frameworks in Java like spring, spring boot, hibernate, JPA.
- Ability to design application modules using various concepts like object oriented, multi-threading, synchronization, caching, fault tolerance, sockets, various IPCs, database interfaces etc.
- Hands on experience on Redis, MySQL and streaming technologies like Kafka producer consumers and NoSQL databases like mongo dB/Cassandra.
- Knowledge about versioning like Git and deployment processes like CICD.
What’s in it for you?
- Immense growth, continuous learning and deliver the best to the top-notch brands
- Work with some of the most innovative brains
- Opportunity to explore your entrepreneurial mind-set
- Open culture where your creative bug gets activated.
If this sounds like a company you would like to be a part of, and a role you would thrive in, please don’t hold back from applying! We need your unique perspective for our continued innovation and success!
So let’s converse! Our inquisitive nature is all keen to know more about you.
Skills
JAVA, MONGO, Redis, Cassandra, Kafka, rabbitMQ
Sr. Software Developer
Work Experience: 8+ Years
The Number of Vacancies: 2
Location:
CTC: As per industry standards
About the Job Description
Senior software developers are responsible for designing, testing, and implementing new and updated software programs. They take on a managerial role and lead the development team with all software development tasks. Their job is to ensure all projects are completed on time and to company specifications.
What We Are Seeking
- Hands-on experience in Core Java and Advanced Java.
- Hands-on Java Framework-Architecture and Advanced Concepts Understanding and Implementation in Real-Time Projects
- Knowledge of Weblogic, Microservices
- Experience in developing APIs and RESTful services using Node JS.
- Strong understanding of the usage and implementation of JWT tokens and access control API development.
- Knowledge of AWS, SSL integration, Docker, Postman
- Extensive knowledge of MongoDB, MySQL, Redis, and Oracle.
- Understanding of how to integrate third-party APIs such as Payment Gateway
- Knowledge of code versioning tools such as GIT
- Must have good analytical, debugging, and problem-solving skills.
- Good communication skills.
Responsibilities
- Produce high-quality code and experience with security implementations.
- Collaborating with front-end developers on the integration of elements.
- Running diagnostic tests, repairing defects, and providing technical support.
- Documenting Node.js processes, including database schemas, as well as preparing reports.
- Work with the QA Team to develop testing protocols to identify and correct challenges.

•Web frameworks: Django, Flask
•JavaScript libraries: jQuery
•Web servers: Nginx, Apache, uWSGI
•Data stores/tools: MySQL, PostgreSQL, SQLAlchemy, Redis, MongoDB, ElasticSearch
•Virtualization: AWS, VMWare, VirtualBox, Docker
•Web scraping and browser automation
•Selenium
Good to Have Skills
•ExperiencewithFrontendJavaScriptFrameworks
•Experience with third party and OAuth implementations.
•Understanding of cloud service platforms and web service infrastructure
Must Have Traits
•Self Starter
•Able to manage projects with minimal hand-holding
•Good verbal and written communication skills
•Enthusiastic, able to research and implement new technologies
•Ability to handle high-pressure situations
Experience Specifics
•Proven expertise in product development •GoodandPracticalUnderstandingofPython(2.7,3.3+)
•Hands on with Linux systems for deploying systems and applications



We are looking to hire a Full-stack web developer who will be responsible for the creation and enhancement of web applications according to the company's specifications. As the role takes into consideration user experience and function, a certain level of both functional domain experience and computer programming is necessary.
To be successful in this position, you will be required to demonstrate a detailed knowledge of the industry's best practices in software development, development expertise in back-end technologies, and must have a professional track record of effective technical management, information analysis, and experience in latest web technologies.
You should have in-depth knowledge of object-oriented PHP programming, an understanding of MVC designs, and working knowledge of front-end technologies including HTML 5, JavaScript, and CSS3.
Responsibilities
2. Code, design, and manage the layout of web applications and suggest enhancements using standard HTML/CSS practices.
3. Work closely with other web designers and programmers to produce web applications.
4. Write back-end code and build efficient PHP modules.
5. Develop back-end portals with an optimized database.
6. Technically design complex backend applications.
7. Troubleshoot application and code issues.
8. Integrate data storage solutions.
9. Respond to integration requests from front-end developers.
10. Finalize back-end features and test web applications.
11. Update and alter application features to enhance performance.
12. Integrate with 3rd party application APIs and plugins.
13.Guide team members for design and implementation of tasks
14. Coordinate end-to-end implementation.
Requirements-
- 1 to 3 years of professional experience working with PHP, web frameworks including Laravel, CodeIgniter- Preferred.
- 1 to 3 years of professional software development experience-Preferred
- Meaningful experience working on large, complex system integrations
- Knowledge of front-end technologies including CSS3, JavaScript, and HTML5.
- Previous experience creating scalable applications.
- Proficient with code versioning tools including Git, Mercurial, CVS, and SVN.
- Familiarity with SQL/NoSQL databases.
- Ability to manage projects.
- Good problem-solving skills
- Ability to take extreme ownership over your and teams work


Roles and Responsibilities :
Developing front end website architecture.
Designing user interactions on web pages.
Developing back end website applications.
Creating servers and databases for functionality.
Ensuring cross-platform optimization for mobile phones.
Ensuring responsiveness of applications.
Working alongside graphic designers for web design features.
Seeing through a project from conception to finished product.
Designing and developing APIs.
Meeting both technical and consumer needs.
Staying abreast of developments in web applications and programming languages.
Desired Candidate Profile :
HTML/CSS. While HTML stands for Hypertext Markup Language, CSS stands for Cascading Style Sheets. ...
JavaScript. ...
Git and GitHub. ...
Backend languages. ...
Web architecture. ...
HTTP and REST. ...
Database storage. ...
Basic design skills.
Familiar with nodejs, reactjs, angularjs, expressjs etc......


- Participate in brainstorming and technical ideation for projects with product, growth, and engineering
- You will design Scalable and Fault-Tolerant systems
- You will help Maintain critical and auxiliary systems (databases, cache ...)
- You will build Experiments that help validate hypotheses for the product
Experience:
2+yrs In your first 3 months, you will…
- Successfully onboard and create strong bonds with the current team
- Participate in brainstorming and technical ideation for projects with product, growth, and engineering
- Contribute to existing product features and experimentation
In your first 6 months, you will…
- Develop prototypes of new features or products using rapid iteration and experimentation as we explore new ideas
- Partner across the engineering team to ship features
In your first year, you will...
- Champion best-in-class engineering practices and systems for an emerging engineer team
- Help build a suite of features for the product
Our Ideal Hire:
- Learned best practices and has experienced the challenges and joys working at a startup
- Managed and maintained production code at increasing scales
- Feels strongly motivated by our mission
- Communicates complex problems and proposes solutions, in writing and in conversation
Expertise:
- Proficiency in any one language (ex: NodeJS / Go / Python)
- MySQL (design / indices / optimizing queries)
- Redis (types/ functionality/ use cases)
Hands-on experience:
- Handled scaling issue
- Good at debugging
Good to have:
- Kafka (or other stream-processing software)
- AWS
Do not apply if you are not:
- Ownership driven
- Curious in general
- Able to explain things in simple terms
- Self-motivated
- Use to work in the chaotic environment
- Highly proactive
- Willing to Mentor and humble to ask for collaboration
- Most important, Learn & Grow yourself!
- Hungry to grow anymore
Speed, passion, attention to details, get it done attitude, long term association and 1st principal thinking and lastly team player with ZERO insecurities. Learning opportunities will surely be huge.
Responsibilities:
1. Build new services to meet critical product and business needs.
2. Design scalable systems to solve problems with modern cloud technology and industry best practices.
3. Articulate a long-term vision for maintaining and scaling our backend systems and the teams running them.
4. Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
5. Write high quality, well tested code to meet the needs of your customers.
Requirements & Qualifications
1. 3-7 years of recent hands-on coding and software design.
2. Bachelor degree or more in Computer Science or a related field.
3. A track record of projects completed on time – you are a flawless executor, not a procrastinator.
4. You find satisfaction in a job well done and want to solve head-scratching challenges.
5. Experience with all phases of the software development life cycle, best practices and Agile Software Development.
6. Solid OOP and software design knowledge – you should know how to create software that’s extensible, reusable and meets desired architectural objectives.
7. Establish Back-End Software Engineer best practices.
8. Working experience with NodeJS, PostgreSQL, In memory Database like Redis, Messaging Queues like RabbitMQ/Kafka


Brief about Coursebook:
Coursebook is a SaaS platform which helps educational businesses like Coaching & Training Institutions to Create, Market and Sell video courses Online through Coursebook. We are currently incubated at IIM Bangalore where our whole Team is placed.
Product 1:
https://coursebook.in/">Coursebook.in was launched in March 2019, as a Marketplace for Courses, where training and coaching institutions could list their Courses on our platform and students could view and book the desired course of their choice. After a few months we choose not to actively develop this product due to a greater need in another Product.
Product 2: (Main Product)
https://coursebook.us/">Coursebook.us is a SaaS platform where Educational businesses like Coaching and Training institutions can manage their day to day operations like Leads, Marketing, Online Payments, Invoicing, students as well as delivering a great learning experience to their students through Video Courses and LIVE CLASSES.
In short, we help any Freelancer, Universities, Coaching and Training institution to take their complete operations online.
We have different dashboard for Institute Admin (Owner/Director), Branch Manager, Sales Manager, Mentor/Teacher and for the student making our offerings very concrete.
Technology Stack Information:
The web application would be designed & developed using open source technologies
Backend Languages
Golang and Node
Database
PostgreSQL is the choice for the database layer. PostgreSQL is industry standard for web applications and server the need for this scale of an application.
Infrastructure
Amazon EC2 for web hosting, S3 for storage, SQS for implementing queues are few of them which are to be integrated and used in the application.
Front End Elements
React
CTC: 10,00,000

