javascript

Key Responsibilities

Develop and maintain scalable applications using MongoDB, MySQL/PostgreSQL, Node.js, Express.js, React.js, and TypeScript.

Design, develop, and optimize RESTful APIs and GraphQL services.

Lead and mentor a team of developers, ensuring best coding practices, performance, and security.

Collaborate with UI/UX designers, product managers, and DevOps teams to streamline development.

Contribute to AI-powered application development (if experienced in AI/ML).

Required Skills & Qualifications

✅ 2.5+ years of experience in MERN stack development.

✅ Expertise in React.js, TypeScript, Node.js, and Express.js.

✅ Strong database management skills with MongoDB, MySQL, or PostgreSQL.

✅ Proven experience in leading development teams and conducting code reviews.

✅ Excellent problem-solving and communication skills.

✅ Bonus: Experience in AI/ML-based applications is a plus.

Why Join Us?

🚀 Exciting Projects – Work on AI-driven and scalable web solutions.

🤝 Leadership Opportunity – Lead and mentor a talented team of developers.

💰 Competitive Compensation – ₹50K - ₹60K per month.

🏡 Dynamic Work Environment – Collaborative, innovation-driven workplace.

Strong MERN / Frontend Developer Profile

Mandatory (Experience 1): Must have 2+ years of hands-on experience in software development using MERN stack (MongoDB, Express.js, React.js, Node.js)

Mandatory (Experience 2): Must have 1+ years of frontend development experience with React.js, HTML5, CSS3, JavaScript (ES6+);

Mandatory (Experience 3): Must have experience with Next.js (SSR/SSG, API routes, Server Actions)

Mandatory (Experience 4): Hands-on experience in building RESTful APIs using Node.js and Express.js

Mandatory (Experience 5): Experience writing unit test cases using Mocha, Chai, Jest (or similar), and working in Agile/Scrum environments

Preferred

Preferred (Experience) – Exposure to GCP/AWS/DevOps and cloud-native development

Preferred (Educataion) – B.E /B.Tech /BCA

Design and develop scalable web applications using MEAN/MERN stack.

Build & optimize AI/LLM workflows using LangChain or LangGraph.

Implement vector storage & semantic search using FAISS / Pinecone / Chroma / Milvus.

Build APIs, microservices, and integration layers.

Optimize application performance and ensure code quality.

Collaborate with cross-functional teams (product, design, backend, DevOps).

Must-Have Skills

• Strong experience in Node.js, Express.js, MongoDB, and Angular/React.
• Hands-on experience in LLM apps, RAG pipelines, Vector Databases.
• Practical knowledge of LangChain / LangGraph.
• Experience with REST APIs, authentication, and integrations.
• Solid understanding of Git, CI/CD, and cloud platforms (AWS/Azure/GCP).

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.

We are looking for a Software Developer to build and implement functional programs. You will work with other Developers and https://resources.workable.com/product-manager-job-description">Product Managers throughout the software development life cycle.

In this role, you should be a team player with a keen eye for detail and problem-solving skills. If you also have experience in Agile frameworks and popular coding languages (e.g. JavaScript).

Your goal will be to build efficient programs and systems that serve user needs. 

Technical Skills we are looking for are:

• Producing clean, efficient code based on specifications
• Coding Abilities in HTML , PHP , JS , JSP – Server let , JAVA , DevOps(basic Knowledge).
• Additional Skills (preferred) : NodeJS , Python , Angular JS .
• System Administrator Experience : Linux (Ubuntu/RedHat) , Windows CE-Embedded.
• Data Base Experience : MySQL , Posgres , Mongo DB.
• Data Format Experience : JSON , XML , AJAX , JQuery.
• Should have Depth in software Architecture Design especially for Stand-Alone Software As Product , or SaaS Platform Experience.
• Should have Basic Experience/knowledge in Micro-Services , Rest API’s and SOAP methodologies.
• Should have built some backend architecture for Long Standing Applications.
• Good HTML Design Sense.
• Experience with AWS Services like EC2 and LightSail is Preferred.
• Testing and deploying programs and systems
• Fixing and improving existing software
• Good Understanding of OOP’s and Similar Concepts.
• Research on New JS Methodologies like React Js and Angular Js

• Proven experience as a Software Developer, https://resources.workable.com/software-engineer-job-description">Software Engineeror similar role
• Familiarity with Agile development methodologies
• Experience with software design and development in a test-driven environment
• Knowledge of coding languages (e.g. Java, JavaScript) and frameworks/systems (e.g. AngularJS, Git)
• Experience with databases and Object-Relational Mapping (ORM) frameworks (e.g. Hibernate)
• Ability to learn new languages and technologies
• Excellent communication skills
• Resourcefulness and troubleshooting aptitude
• Attention to detail

We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is an advantage as well.

Responsibilities

• Integration of user-facing elements developed by front-end developers with server side logic
• Writing reusable, testable, and efficient code
• Design and implementation of low-latency, high-availability, and performant applications
• Implementation of security and data protection
• Integration of data storage solutions by using mySQL database.

Skills And Qualifications

• Should have industry experience of at least 1 year.
• Strong proficiency with JavaScript and strong knowledge of Node.js and sails frameworks
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Good understanding of server-side templating languages such as EJS
• Good understanding of front-end technologies, such as HTML5, and CSS3
• Understanding accessibility and security compliance 
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Understanding fundamental design principles behind a scalable application
• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools, such as Git