Fullstack Developer

Senior Software Developer – Java Full Stack | AI-Powered Innovation

Experience: 6–10 years

Department: Engineering & Innovation

🌟 About the Role

We’re searching for a Senior Software Developer who thrives on solving complex challenges and building world-class products that redefine technology boundaries. You’ll be part of a dynamic team that brings Java full-stack excellence together with Python and AI-driven innovations, crafting scalable, intelligent, and high-performance solutions.

If you love clean code, intelligent systems, and pushing the limits of what’s possible, this is your playground.

💡 What You’ll Do

• Design, develop, and deploy robust Java-based full-stack applications with a focus on performance, scalability, and reliability.
• Collaborate with cross-functional teams to integrate AI and Python-driven components into enterprise-grade systems.
• Architect and maintain microservices, RESTful APIs, and modular components for high-availability platforms.
• Engage in end-to-end product development — from ideation to deployment — using modern frameworks and tools.
• Champion best coding practices, conduct code reviews, and mentor junior engineers.
• Explore, experiment, and implement new technologies in AI, automation, and intelligent analytics.
• Troubleshoot complex issues, debug performance bottlenecks, and deliver elegant solutions.

🧠 What Makes You Stand Out

• Strong expertise in Java, Spring Boot, Hibernate, and modern JavaScript frameworks (React, Angular, or Vue).
• Hands-on exposure to Python programming — especially for automation or AI/ML integration.
• Solid understanding of AI/ML frameworks (TensorFlow, PyTorch, or OpenAI APIs) is a big plus.
• Experience with cloud technologies (AWS, Azure, or GCP) and containerization tools (Docker, Kubernetes).
• Proven record of building scalable microservices and RESTful APIs.
• Passion for problem-solving, algorithmic thinking, and clean architecture.
• Excellent communication and collaboration skills — you turn complex problems into creative solutions.

⚙️ Tech Stack Snapshot

Languages: Java, Python, JavaScript

Frameworks: Spring Boot, React/Angular/Vue, Flask (optional)

Tools: Git, Jenkins, Docker, Kubernetes

Databases: MongoDB, MySQL, PostgreSQL

Bonus: AI/ML frameworks, Generative AI, or NLP experience

🌈 Why You’ll Love Working Here

• Work on cutting-edge AI-integrated applications that make a real-world impact.
• Join a culture that values innovation, autonomy, and technical excellence.
• Collaborate with brilliant minds who inspire and challenge you daily.
• Enjoy flexibility, learning opportunities, and a growth-oriented environment.

💬 Ready to code the future?

Apply now and let’s build something extraordinary together!

* Good knowledge of Node.js/ NextJS, Express.js, React and MongoDB

* Need a clear understanding of JavaScript and Typescript.

* Excellent grasp of data structures and designing and developing REST APIs.

* Good skills of either RDBMS (e.g. MySQL or PostgreSQL) or NoSQL (MongoDB or equivalent).

* Must have at least 3 years’ experience in MERN Stack development.

* Experience in developing responsive web applications.

* Good communication skills.

* Sound understanding of Agile and Scrum methodologies and ability to participate in local and remote Sprints.

* Good grasp of UI / UX concepts.

* Should have experience in using Git and VSCode.

* Knowledge of AWS, Azure, CI / CD, Gitflow, shell scripting will be considered positively.

We are seeking a highly skilled and experienced MERN (MongoDB, Express.js, React, Node.js) Stack Developer to join our dynamic development team. As a MERN Stack Developer, you will be responsible for designing, developing, and maintaining scalable web applications using the MERN stack framework.

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
• Expertise in backend programming with Node.js and MongoDB.
• Experience with React.js and redux.
• Material UI and 3rd party libraries.
• Experience with clean code writing practices like avoiding callback hell like promises, async.
• Thorough understanding of Node.js and its core principles.
• Experience with popular React.js workflows (such as Flux or Redux).
• Familiarity with newer specifications of ECMAScript.
• Experience with data structure libraries (e.g., Immutable.js).
• Familiarity with RESTful APIs.
• Knowledge of modern authorization mechanisms, such as JSON Web Token.
• Familiarity with modern front-end builds pipelines and tools.
• A knack for benchmarking and optimization.
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial).

Responsibilities:

• Build Node.js APIs using microservices.
• Rewriting backend code with microservices architecture & Unit tests.
• Developing new user-facing features using React.js.
• Building reusable components and front-end libraries for future use.
• Translating designs and wireframes into high-quality code.
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers.
• 
  

If you are a passionate MERN Stack Developer looking for an exciting opportunity to work on challenging projects and be part of a talented team, we would love to hear from you. Please submit your application, including your resume and portfolio, highlighting your relevant experience and projects.

Title

Full Stack MERN/ MEAN Tech Lead

Location

Bangalore

About the company

With over a decade of experience, we specialize in crafting bespoke integration solutions and empowering businesses across the globe with a combined approach to emerging technology. We use cutting edge enterprise platforms - Microsoft, Salesforce, SAP and more Since our establishment in 2004, with our headquarters located in Tampa, USA, eCosmos has been extending global reach and domestic support to a diverse range of organizations, from start-ups to Fortune 500 companies

. Job Summary:

The Lead Developer provides technical expertise which requires a working knowledge of the technical infrastructure underpinning the applications. Plans, consults, and coordinates complex project assignments in the design, development and implementation of applications software. Works as part of a service or project team to implement complex technical solutions that meet business requirements. Responsible for contributing to the planning of the work programs and the review, development, and modification of best practices and technical solutions. Provides supervision to a team of Developers

. What success looks like in this role:

• You will lead a team of 5-10 developers building web apps with React, Node.js, Express and MongoDB, and mobile apps with React Native.

• Architect scalable and high-performance web and mobile apps using proven JavaScript stacks like MERN and MEAN

• Establish best practices for web and mobile development, code quality, testing, and CI/CD

• Proficiency in TypeScript is required to develop and maintain the front-end and back-end of our web applications.

• Plan sprints, assign tasks, and oversee code reviews, testing, and releases

• Troubleshoot and debug applications across the stack

• Manage technical debt and spearhead migrations to new libraries/frameworks when needed

• Hire and mentor developers and promote an engineering culture of learning and excellence.

Skills Required:

• Excellent communication skills, both written and oral.

• Quick problem-solving skills with exceptional aptitude and reasoning. • Good orator, presenter with influencing skills to manage and negotiate complex conflicting resolutions.

• Ability to frame ideas in words to provide a perspective and outcome from analyzing them.

• Experience in leading, managing, mentoring a team of junior developers.

You will be successful in this role if you have:

: • Bachelor's in engineering (B.E or BTech.), MCA.

• 5+ years' experience leading web and/or mobile engineering teams

• Deep expertise with JavaScript, Node.js, React, React Native, and MongoDB • Experience building web apps with MERN or similar stacks • Experience building mobile apps with React Native or similar frameworks

• Excellent verbal and written communication skills

• Comfortable with Agile methodologies like Scrum and Kanban

• Strong leadership skills and commitment to building a world-class engineering team

Compensation & Benefits:

For the right candidate, e-Cosmos is ready to provide an extremely competitive salary and added incentive bonus potential

. e-Cosmos provides an attractive and complete benefits package:

✓ Accidental Death & Dismemberment Insurance

✓ Training and certification assistance

✓ Employee referral bonus program

✓ Vertical and Lateral increments

ETHICS COMPLIANCE:

: e-Cosmos is firmly committed to conducting business in compliance with the letter and spirit of the law and other accepted standards of business conduct as reflected in the company's policies.

B.S. in software development, computer science or related field (Equivalent experience also accepted) 

·  1+ years of relevant work experience in software development and design.  

·  Deep understanding of computer science fundamentals (e.g, algorithms and data structures).  

·  Deep understanding of JavaScript or TypeScript and at least one JS UI framework React ·  
Deep understanding of Node.js and at least one Node server framework (Express, NextJS, NestJS). 

·  Deep understanding of the full software development lifecycle. 

·  Experience designing/implementing/integrating with APIs.  

·  Solid understanding of database systems (MySQL, PostgreSQL, SQLServer).  

·  Solid understanding of Git and managed source control services like GitHub. 

·  Experience working within Agile software development teams. 

·  Foundational knowledge of Amazon Web Services (AWS). 

·  Excellent written and oral communication skills. 

About:

• AppTile is building the future of how merchants, creators or service entrepreneurs create mobile apps.
• We help creators and micro-entrepreneurs to build mobile applications for their businesses. 
• In 2022, it is still very hard. We are building the next-generation no-code platform for mobile internet.

Responsibilities:

• Drive design and architecture around key systems that are part of the product. Setup design philosophies and implement them in a way that ensures they are easily followed.
• Setup toolchains and technical stacks that are intuitive. Implement these toolchains in a way that is unobtrusive for other developers and ensure it stays that way.
• Drive good development practices and philosophies that ensure good stable code over several cycles of development. Keeping them as simple and un-intrusive as possible.
• Report directly to our head of technology.
• Balance speed and quality, with a focus on tangible results.

• Tier 1 / Tier 2 Colleges  with decent academic backgrounds
• Experience in Product Companies and typically more than 2 years
• Should have worked in previous companies for a larger duration
• Full Stack Developers with experience in Typescript or Nodejs, React or React Native, Rest APIs
• 3-8 years of product development experience. Preferably in a product development environment.
• Experience with working with Web Development Stacks (HTML, Javascript, CSS, etc)
• Experience with working with Backend Server stacks (SQL databases, Web Servers, API Endpoints etc)

• Bachelors/Masters degree in Engineering or equivalent.
• You have a strong passion for building things from the ground up with all the challenges and unknowns, and enjoy the process of solving problems that are new and unique.
• Experience with React, React-native, Typescript and similar Frontend Technologies.
• Experience with PostGres, MySQL and similar DB Technologies.
• Experience with REST, GraphQL and similar API technologies.
• Experience working with cloud computing platforms like AWS, GCP, Azure.
• Experience with open source languages such as, Java, Objective-C/C++, Swift, Java, PHP, Python etc.
• Experience communicating technical concepts to non-technical audiences.
• Docker and Kubernetes