Sr. Full stack Engineer at Kloud9 Technologies · Bengaluru (Bangalore) · 6 - 12 years · Profitable · Posted 17 Mar 2023

Building web application front end & backend
React
Spring Core, Spring MVC
Spring Boot
Spring Webflux/Reactive
Mongo DB/Cassandra
HTML, CSS, Javascript,
Cloud Basics (AWS/GCP/Azure)
Cloud Functions (AWS/GCP/Azure)

About Kloud9 Technologies
About
Kloud9 was founded with the vision of enabling our customers to transform into an intelligent enterprise with our “AI-First” approach. We help our customers in their data transformation and insights transformation journeys and enable them to make smart business decisions.
At Kloud9, we know AI & ML is one of the key technologies that can help organizations to significantly improve their customer experiences and transform their business operations to enable them to survive & thrive in this global competitive market.
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Technology Stack: Next.js, Express.js, PostgresSQL, GCP
Location: Ahmedabad
About Medflix - empowering healthcare professionals for better care
Medflix (www.medflix.app/app) is a platform where healthcare professionals (doctors, medical students and more) stay updated through live talks, Q&As, support material and more. Through the platform we believe that these professionals can be empowered to deliver better care to patients (like our families) throughout the globe.
In its current (and evolving) form, it is a live learning and engagement platform seeing tremendous week-on-week growth through stellar speakers and a very active early community. The product is in the growth stages and you will be playing a key role in steering the tech to create a scalable and lovable product experience.
We are backed by startup, VC and PE veterans including Kunal Shah (CEO, Cred), Raghunandan G (Zolve, ex-TFS), Avnish Mehra (Everstone) and more.
Medflix is a platform by PlexusMD (www.plexusmd.com/app), a network trusted and loved (4.4 stars on Playstore and 4.4 on Appstore) by more than 3 lakh doctors in India and working closely with leading healthcare providers and companies like AIIMS, Jaslok, Hinduja, Apollo, HCG, Elsevier, Association of Physicians of India, Indian Association of Cardio-thoracic surgeons, Society of Nuclear Medicine, Govt of Gujarat (HFW Dept), Govt of Haryana (SIFHW), McKinsey and company, Takeda, Mankind and others.
About the Role
Tech stack (expertise in all is not required, experience in some will be sufficient):
- React / Next.js (required, at least 1 year of experience)
- Express.js (required, at least 1 year of experience)
- Familiarity with cloud services (gcp / azure / aws)
- PostgreSQL (or expertise in any relational database)
- Redis
- Docker/Kubernetes deployment (good to have)
For this role we are looking for engineers with an entrepreneurial mindset, an understanding of how startups operate and who like to get their hands dirty when unknown things come their way. You will work closely with the product team to prioritise and ship features with a predictable cadence.
As this role is full-stack, you need to have a good understanding of frontend design and be obsessed with responsiveness and pixel-perfect behaviour. On the backend side, an OCD for efficiency and optimisation is a required personality trait.
Demonstrated history of solving hard problems (frontend/backend or both) is a great-to- have.
Benefits and growth
While we ensure competitive compensation (plus ESOP options for deserving candidates), at Medflix, you will also have a strong say in how final solutions look. You will get the opportunity to learn to steer an accelerating rocket ship.
College credentials, background or years of experience are no bar for growth inside the company for enthusiasts who believe in our mission and demonstrate that passion to create a product that healthcare workers love.
Exp- 3-10 years
Notice period- Serving notice period or immediete
Location-Bangalore
Required Skills and Qualifications
Backend:
• Strong programming skills in Core Java, Java 8+
• Experience with Spring Boot, RESTful APIs, Microservices architecture
• Good understanding of JPA/Hibernate, and SQL/NoSQL databases
Frontend:
• Proficient in React.js, JavaScript (ES6+), HTML5, CSS3
• Experience with Redux, React Hooks, and component-based architecture
• Familiarity with front-end build tools (Webpack, Babel, NPM)
Key Responsibilities
• Develop and maintain scalable backend services using Core Java / Spring Boot
• Design and implement responsive, high-quality front-end interfaces using React.js
• Integrate backend APIs with frontend components seamlessly
• Collaborate with product managers, architects, and QA to deliver quality software
• Ensure code quality through unit testing, code reviews, and performance tuning
• Troubleshoot and debug production issues as needed
Mandatory Skills:
- Strong experience in Java and Spring Boot.
- Hands-on experience with Microservices architecture.
- Strong frontend development experience with React.js
- Proficient in JavaScript/TypeScript, HTML5, and CSS3.
- Experience developing and consuming REST APIs.
- Experience with JUnit and unit testing practices.
- Good understanding of relational databases and SQL.
- Experience with cloud/SaaS technologies, preferably AWS.
- Exposure to AWS SNS, SQS, S3, RDS, and Elasticsearch.
- Experience with MongoDB is preferred.
- Familiarity with Git and standard CI/CD development practices.
- Good understanding of application security, performance, and scalability.

Technical Skills
● Strong in React / Angular / Vue.
● Required skills: state management, responsive UI design, component-based architecture.
● Strong in at least one backend stack such as Java (Spring Boot) / .NET / Python.
● Experience with REST APIs / GraphQL and authentication / authorization.
● Strong in PostgreSQL / MySQL / SQL Server.
● Knowledge of NoSQL such as MongoDB / Redis is a plus.
● Understanding of microservices / modular monolith, API-first design, and event-driven systems at a basic level.
● Familiar with Git, CI/CD pipelines, and Docker.
● Cloud technology exposure in Microsoft Azure / AWS.
Role & Responsibilities
- Design, develop, and maintain scalable full-stack applications using Java, Spring Boot, and React.js.
- Develop and manage microservices-based architectures and REST APIs.
- Build responsive and user-friendly front-end applications using React.js.
- Implement event-driven solutions using Apache Kafka.
- Ensure application performance, scalability, security, and code quality.
- Lead technical discussions, conduct code reviews, and guide development teams.
- Collaborate with cross-functional teams to deliver high-quality software solutions.
Preferred Candidate Profile
- 9–12 years of experience in full-stack development.
- Strong hands-on experience with Java, Spring Boot, Microservices Architecture, React.js, REST APIs, and Kafka.
- Proven experience in end-to-end full-stack application development.
- Strong technical leadership, problem-solving, and communication skills.
- Experience leading development teams and mentoring developers.
- Work Location: Hyderabad / Bangalore
- Notice Period: Immediate joiners only
- Budget: ₹27–30 LPA
- Virtual Drive: 28 October 2026 (Wednesday)
Perks and Benefits
- Opportunity to work on enterprise-level full-stack applications.
- Exposure to modern Java, React, microservices, and event-driven technologies.
- Opportunities for technical leadership and career growth.
- Competitive compensation based on experience and skills.
Full-Stack Developer, Java + Spring Boot + ReactJS (4–7 years, 2 positions)
Location: Bengaluru (5 days in office) | CTC: ₹16–24 LPA | Joining: within 15 days
Must-have skills
Backend: Java and Spring Boot
- Core Java 8+: OOP, collections, exception handling, streams
- Spring Boot: building REST APIs, controllers, services, repositories
- Spring Data JPA / Hibernate for database operations
- Request validation and global exception handling
Frontend: ReactJS
- React functional components and hooks (useState, useEffect)
- Props, state, forms, and conditional rendering
- Calling REST APIs from React (Axios or fetch) and handling responses and errors
- JavaScript ES6+, HTML5, CSS3
Database
- SQL: joins, aggregations, writing and debugging queries
- PostgreSQL, MySQL, or SQL Server
- Basic table and relationship design
APIs and integration
- Building and consuming RESTful APIs
- Connecting a React frontend to a Spring Boot backend end to end
- API testing with Postman or Swagger
Security basics
- Login and authentication flows, JWT
- Role-based access fundamentals
- Input validation and secure coding basics
Engineering practices
- Git: branching, pull requests, resolving merge conflicts
- Unit testing with JUnit and Mockito
- Debugging and fixing issues across UI, API, and database
- Taking part in code reviews
- Agile/Scrum way of working
Good to have
- TypeScript
- Java 17+
- Microservices
- Redux or Context API for state management
- CI/CD (GitLab, Jenkins, or GitHub Actions)
- Docker
- Azure (AWS or GCP also acceptable)
- Kafka, RabbitMQ, or Azure Service Bus
- SaaS product experience
What the candidate should be able to do
- Deliver a feature end to end on their own: React screen, Spring Boot API, and database changes
- Understand a requirement and turn it into working code with minimal hand-holding
- Debug production issues across frontend and backend
- Write clean, tested, reviewable code
Non-technical requirements
- Based in Bengaluru, or able to relocate immediately
- Willing to work 5 days a week from the office
- Can join within 15 days of offer acceptance
- Expected CTC within ₹16–24 LPA
- Clear communication and an ownership mindset
Job Description: Full Stack Java + React Developer
Role: Full Stack Developer
Skills: Java, Spring Boot, React.js
Job Summary
We are looking for an experienced Full Stack Developer with strong expertise in Java, Spring Boot, and React.js to design, develop, and maintain scalable web applications.
Required Skills
- Strong hands-on experience in Java and Spring Boot.
- Experience developing frontend applications using React.js.
- Good understanding of REST APIs and microservices architecture.
- Experience with JavaScript, HTML5, and CSS3.
- Knowledge of SQL databases such as MySQL, PostgreSQL, or Oracle.
- Familiarity with Git, unit testing, and CI/CD pipelines.
- Strong problem-solving and communication skills.
Preferred Skills
JOB DESCRIPTION
Experience: 5-8 years
Fullstack Developer (React Heavy+ Java)
Required Skills and Qualifications
Frontend:
• Proficient in React.js
• Experience with Redux, React Hooks, and component-based architecture
• Familiarity with front-end build tools (Webpack, Babel, NPM)
Backend:
• Strong programming skills in Core Java, Java 8+
• Experience with Spring Boot, RESTful APIs, Microservices architecture
• Good understanding of JPA/Hibernate, and SQL/NoSQL databases
Key Responsibilities
• Develop and maintain scalable backend services using Core Java / Spring Boot
• Design and implement responsive, high-quality front-end interfaces using React.js
• Integrate backend APIs with frontend components seamlessly
• Collaborate with product managers, architects, and QA to deliver quality software
• Ensure code quality through unit testing, code reviews, and performance tuning
• Troubleshoot and debug production issues as needed
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Job Description: Java Full Stack Developer – Java & React
Experience: 5+ Years
Location: Hyderabad
Key Skills:
- Strong experience in Java
- Hands-on experience with React
- Strong knowledge of Spring Boot
- Experience with Microservices
- Good knowledge of REST APIs
- Experience in developing scalable and high-performance applications
- Strong problem-solving and debugging skills
Roles & Responsibilities:
- Design, develop, and maintain full-stack applications using Java and React.
- Develop scalable backend services using Spring Boot and Microservices.
- Build responsive front-end applications using React.
- Develop and integrate RESTful APIs.
- Perform coding, testing, debugging, and code reviews.
- Collaborate with cross-functional teams throughout the development lifecycle.
Urgent Requirement 🔥
👉 Java Backend with AWS
👉 Java Backend with React, Spring Boot, Microservices
Exp: 3+ Yrs
Loc: Chennai, Bangalore, Hyderabad
Immediate Joiners Preferred!












