
having built a few of India's largest companies across multiple domains. This will be an opportunity to directly work with the founders. What we are looking for: An entrepreneurial, thoughtful, and positive mindset/approach to solving large problems, capable of adapting to changing market conditions, willing to join a growing startup, a rational and no-nonsense approach, and practical thought process.
Full-stack experience designing and building scalable applications from end-to-end
- Excellent JavaScript skills and strong proficiency in React
- Familiarity with the MERN stack (MongoDB, Express.JS, React.JS, and Node.JS)
- Working experience with React, Redux, ES6
- Experience building backend API's using NodeJs and ExpressJs
- Experience with NoSQL databases such as MongoDB, mongoose, aggregation framework
and Redis
- Experience with Web sockets and related frameworks (e.g. Socket.IO)
- Experience using RESTful APIs and basic authentication mechanisms
- Create and maintain microservices
- Ability Showcase past work via live web pages
Required Skills: Database - MongoDB, Restful, Express.JS, React.JS and Node.JS, MySQL,
NoSQL.

About Catalyst IQ
About
Our deep bench of CXOs would not only help cover the entire value chain of your core business but also help you grow professionally in your caree
Connect with the team
Company social profiles
Similar jobs
Job Role: Sr. Full Stack Developer
Experience- Min 6 Years
Location-Bangalore
Company Profile- https://www.wissen.com/
Domain
Fintech, Banking, Capital Markets, Investment Banking
Job Summary
We are looking for a highly experienced Senior Full Stack Engineer with strong hands-on expertise in Java, Spring Boot, AWS,React, and DynamoDB. The ideal candidate will have a strong background in building secure, scalable, high-performance applications for financial services, with experience in regulated environments such as banking, capital markets, or investment banking.
Key Responsibilities
- Design, develop, and maintain scalable backend services using Java and Spring Boot.
- Build responsive and reusable user interfaces using React.
- Design and optimize data models and access patterns in DynamoDB.
- Develop RESTful APIs and integrate them with front-end and downstream systems.
- Work on microservices-based architecture and cloud-native application design.
- Collaborate with product managers, business analysts, architects, QA, and DevOps teams to deliver business-critical solutions.
- Ensure application security, performance, reliability, and maintainability.
- Participate in code reviews, architecture reviews, and design discussions.
- Troubleshoot production issues and support enhancements in live environments.
- Follow SDLC, Agile, and DevOps best practices in a fast-paced financial services environment.
Required Skills
- 8+ years of experience in software development.
- Hands-on experience working on React, AWS cloud environment and DynamoDB.
- Proficiency in Java, J2EE, Spring, Hibernate, REST API, Microservices.
- Experience in developing applications using J2EE Design Patterns and AWS services.
- Strong problem-solving skills and attention to detail.
- Excellent communication and teamwork skills.
- Qualifications
- Bachelor’s or Master’s degree in Computer Science, IT, or a related discipline.
- Proven experience delivering enterprise-grade applications in regulated financial environments.
We are seeking a skilled MERN Stack Developer to join our dynamic development team. The ideal candidate will be proficient in MongoDB, Express.js, React.js, and Node.js, and will play a key role in building and maintaining web applications.
Key Responsibilities:
• Frontend Development: Develop user-facing features using React.js, ensuring appealing and responsive user interfaces.
• Backend Development: Build efficient and scalable server-side systems using Node.js and Express.js.
• Integration: Integrate front-end components with server-side logic, ensuring seamless communication between the two.
• Data Management: Implement data storage solutions using MongoDB and other relevant technologies.
• Troubleshooting: Identify and address bugs, glitches, and performance issues to maintain application functionality.
• Collaboration: Work closely with cross-functional teams to conceptualize, define, and implement new features.
• Innovation: Keep abreast of emerging technologies and trends to contribute to continuous improvement.
Required Skills and Qualifications:
• React Proficiency: In-depth knowledge of React.js and its core concepts for building dynamic user interfaces.
• Node.js and Express: Strong expertise in Node.js and Express.js to create efficient and scalable backend systems.
• MongoDB: Experience with MongoDB for data storage and management.
• Full-Stack Development: Ability to work on both frontend and backend development.
• Problem-Solving: Strong analytical and problem-solving skills.
• Communication: Excellent communication and teamwork skills.
Preferred Qualifications:
• Experience with RESTful APIs and GraphQL.
• Familiarity with version control systems like Git.
• Understanding of Agile methodologies.
Job Title: Lead I – Python Full Stack Engineer (Python + React)
Location: Hyderabad
Work Model: Hybrid (3 days in office)
Notice Period: 0–15 Days (Immediate joiners preferred)
Job Summary:
We are looking for a Lead Python Full Stack Engineer with 6–7 years of development experience to join our engineering team in Hyderabad. The ideal candidate will have strong hands-on expertise in React UI and Python backend development, with solid experience in modern testing frameworks, CI/CD, and database management.
Key Responsibilities:
- Design, develop, and maintain full-stack applications using React (frontend) and Python (backend).
- Implement reusable UI components and ensure a seamless user experience with React.
- Build and manage backend services using frameworks such as Django, Flask, or FastAPI.
- Develop and maintain unit and end-to-end tests using frameworks like Jest, Mocha, and Cypress.
- Manage state using libraries such as Redux, Zustand, or MobX.
- Configure and maintain CI/CD pipelines for efficient deployment.
- Integrate with relational and non-relational databases such as PostgreSQL, MySQL, or MongoDB.
- Collaborate with cross-functional teams to deliver scalable, maintainable solutions.
Required Skills & Experience:
- 6–7 years of full-stack development experience.
- Strong hands-on expertise in React UI (top priority).
- Proficiency in Python with frameworks like Django, Flask, or FastAPI.
- Expertise in unit testing (Jest, Mocha) and E2E testing (Cypress).
- Experience with Vite or similar build tools.
- Strong understanding of CI/CD pipelines.
- Experience with RESTful APIs, web services, and routing (React Router).
- Solid understanding of PostgreSQL/MySQL/MongoDB databases.
- Strong problem-solving and debugging skills.
Nice to Have:
- Familiarity with Node.js or Express.js for backend development.
- Exposure to front-end technologies such as HTML, CSS, and JavaScript (ES6+).
Job Description: Software Engineering –Sr. Software Engineer
Key Responsibilities - Responsible for design, problem solving, develop, modify, debug and/or maintain software system for one or more specific modules within a large software system scope
Must have:
React JS, Java script, Jquery, JSP, Struts, Java, Spring Framework, Database
Preferred Skills/Experience:
• 7+ years of hands-on software development experience in designing and implementing complex, distributed applications.
Knowledge on front end technology is must such as React JS / Angular
• Knowledge and real time experience in Designing, Development, and Maintenance of Scalable, Distributed applications.
• Strong experience in Java, Spring Boot-based application on RDBMS (SQL Server ).
• Hands on experience with frameworks like ReactJS, AngularJS, NodeJS and designing Microservice/Event-driven architecture.
• Experience with cloud migration (AWS or Azure) and managing the development of cloud-based applications and development of APIs, web services.
• Capable of troubleshooting errors, finding root causes, resolving failures in real time.
• knowledge of Relational Databases, SQL and ORM Technologies(Hibernate, JPA, Spring Data).
• Experience with version control and source code management tools such as Git, GitHub and Bitbucket.
• Thorough understanding of Java and J2EE Internals (Class Loading, Memory Management, Transaction Management.).
• Knowledge on creation of CI/CD pipelines using Jenkins, Groovy and GitHub actions workflows.
• Knowledge on working and leading Agile/Scrum development cycles.
• Implement test cases using Junit, Mockito, Cucumber, jest
About Us:
We’re looking to hire someone to help scale Machine Learning and NLP efforts at Episource. You’ll work with the team that develops the models powering Episource’s product focused on NLP driven medical coding. Some of the problems include improving our ICD code recommendations , clinical named entity recognition and information extraction from clinical notes.
This is a role for highly technical engineers who combine outstanding oral and written communication skills, and the ability to code up prototypes and productionalize using a large range of tools, frameworks, and languages. Most importantly they need to have the ability to autonomously plan and organize their work assignments based on high-level team goals.
What you will do at Episource:
You will be responsible for setting an agenda to develop and build machine learning platforms that positively impact the business, working with partners across the company including operations and engineering. You will be working closely with the machine learning team to design and implement back end components and services. You will be evaluating new technologies, enhancing the applications, and providing continuous improvements to produce high quality software.
Required Skills:
-
Strong background in analytics, BI or data science deployments is preferable with 2-6 years of experience
-
Knowledge of React/Vue, HTML, CSS
-
Experience building and consuming APIs
-
Experience with MySQL, MongoDB and MEAN stack
-
Knowledge and experience with serverless architectures is a plus
-
Hands-on experience with AWS or any major cloud service provider for deploying solutions
-
Experience with Docker or Kubernetes in deploying solutions on the cloud
-
Hands-on experience Python, Apache Spark & Big Data platforms to manipulate large-scale structured and unstructured datasets.
-
Fluent in data fundamentals: SQL, data manipulation using a procedural language, statistics, experimentation, and modeling
MERN Stack Developer
2.5+ YEARS
Roles and Responsibility
Working experience as a MERN Stack Developer.
Design, code and manage large scale services using cutting edge technologies (NodeJs, ReactJS/AngularJS/VueJs etc).
In-depth knowledge of NodeJS.
Creating secure RESTful-based web services in XML or JSON.
Good knowledge in ECMAScript(6/7/8) is essential.
Strong fundamentals in Data Structures and Algorithms.
Experience implementing applications using Angular or React.
Should have an working experience with state management, React Hooks, React Fragments etc.
Should have a good Knowledge of Redux, Flux, and Webpack.
Writing the test case for components.
Experience working with Docker, Redis, MySQL, MongoDB.
Comfortable taking challenges and learning new technologies.
Excellent communication skills and client-facing experience.
Ability to mentor and build the team.
Knowledge of code versioning tools such as Git, Bitbucket or SVN.
Knowledge of the following will be considered as an advantage
Experience with Socket.IO for Real time communications.
Consumer Web Development Experience for High-Traffic, Public Facing web applications.
Caching with Redis For Speedy Performance.
Experience with cloud message APIs.
Knowledge of GraphQL, PostgreSQL.
Knowledge of NextJs.
Knowledge of any frameworks of NodeJS.
Experience with Progressive Web applications.
Knowledge of SSR.
Location: Pune (Work from home till Pandemic)
Skills: Java, Spring, Hibernate, MySQL,
Backend Skills – Java Spring Boot, JSP, MySQL, Document DB
Frontend Skills – ReactJS
Good to have ( Not Mandatory ) – Python.
Job Description:
- Hands on experience in designing and developing applications using Java
- Hands on experience in Spring, Hibernate, Micro-Services and MySQL
- Object Oriented analysis and design using common design patterns.
- Familiarity with build tools like Maven
- Proficient understanding of code versioning tools, such as Git
- Experience in Java Development
- Good to have experience or Basic knowledge in ReactJs but not mandatory
Our client is the Health-tech initiative of India's largest business house. Started in 2015, it empowers healthcare providers and consumers in India. All healthcare monitoring services are made available through an app that will help connect doctors, hospitals, pharmacies, laboratories and consumers, enabling preventive and predictive healthcare. It helps the care-givers to track the entire patient journey from the initial appointment to maintaining their records, generating lab test reports to providing virtual consultation and home-care solutions. It is expected that this futuristic guide will strengthen doctor-patient relationship and enhance the in-clinic experience.
- Understanding and improving performance of web applications through tools like Lighthouse/ Google Page Insights or similar.
- Interpreting the results and implement design improvements
- Mentoring of new members, provide directions for secure coding, and extensive code reviews to ensure the highest quality code is shipped to production.
- Configuring and managing web servers like Nginx or Apache
- Monitoring web applications using tools like AWS, CloudWatch, NewRelic APM or similar MERN stack developers, with focus on Express, React and Node
What you need to have:
- B.E/ B.Tech- Min 65 %
- Web Server Application setup for B2C with significant scale (more than 100K daily users)
- React Native based development experience
- Understanding of Mobile application development (Android and/ or iOS)
- Good understanding of Laravel framework
- Real-world experience in configuring and managing web servers like Nginx or Apache
- Good understanding of git-based SCM, Jenkins based build systems, CI/ CD pipelines, and deployment frameworks
- Sound knowledge of web application architecture
- Experience in working with stakeholders in Product Management and Business teams
- Extensive experience in building and supporting PHP or Node- based Web Server Application
- Hands-on experience in managing performance, stability, and security of node/ PHP based web applications on the server-side
• Hand-on experience in creating frontend applications using React or Angular.
• Highly proficient for both Java script and Type script.
• Good command over Databases both SQL/No SQL (Mongo DB, My Sql)
• Hands-on experience of GIT (version control tools).











