Fullstack MERN Developer at Thena · Bengaluru (Bangalore) · 2 - 5 years · ₹15L - ₹24L / yr (ESOP available) · Raised funding · Posted 24 Feb 2023

We are looking for a talented Fullstack Developer with 2-5 years of experience to join our engineering team. The ideal candidate will have experience with MongoDB, Express, React, and Node. As a Fullstack Developer, you will be responsible for developing and maintaining our web-based applications and services.
Responsibilities:
- Work collaboratively with the product and engineering teams to develop high-quality web-based applications and services.
- Develop and maintain RESTful APIs using Node.js and Express.
- Design and develop the front-end user interface using React.
- Create and maintain MongoDB databases and related services.
- Develop and maintain automated test cases for both front-end and back-end applications.
- Participate in code reviews and ensure code quality.
- Stay up-to-date with emerging trends and technologies in web development and AI.
Qualifications:
- 2-5 years of experience as a Fullstack Developer with expertise in MongoDB, Express, React, and Node.
- Experience in developing RESTful APIs using Node.js and Express.
- Experience in front-end development using React.
- Experience in database development using MongoDB.
- Strong knowledge of HTML, CSS, and JavaScript.
- Strong problem-solving and analytical skills.
- Excellent communication and collaboration skills.
- Experience in automated testing using Jest, Cypress, or other similar frameworks is a plus.
- Experience in AWS or other cloud technologies is a plus.
- Knowledge of AI and machine learning concepts is a plus.
We offer a competitive salary, flexible working hours, and a collaborative work environment. If you are passionate about AI & how teams collaborate, and want to work in a fast-paced, innovative environment, then we want to hear from you.

About Thena
About
Thena is a pre-seed startup that is redefining customer experience for businesses.
Started in 2022, we raised our early funding from Pejman Nozad of Pear VC, Ben Narasin of Tenacity Fund,
Mike Molinet of Branch, Michael Katz of mParticle, Coby Berman of Radar, J Zac of Lattice and others.
We are passionate people who love to solve complex problems. We are fast, data-driven, and strive to work hard.
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Responsibilities:
* Collaborate with cross-functional teams on project requirements and deliverables
* Develop user interfaces using React.JS and Express API's
* Implement database solutions with MongoDB and Node.JS
Job Description: React + Node.js Full Stack Developer
Experience: 4+ Years
Location: HP, Bellandur Office, Bangalore
Joining: Immediate Joiners Only
Job Overview
We are looking for an experienced React + Node.js Full Stack Developer to build scalable, responsive, and high-performance web applications. The ideal candidate should have strong hands-on experience in React.js for frontend development and Node.js with Express.js for backend development.
Mandatory Skills
- React.js
- Node.js
- Express.js
- JavaScript (ES6+)
- REST API development and integration
Key Responsibilities
- Develop responsive and user-friendly web applications using React.js.
- Build scalable backend services and APIs using Node.js and Express.js.
- Design, develop, and integrate RESTful APIs.
- Integrate frontend and backend systems.
- Work with databases such as MongoDB, MySQL, or PostgreSQL.
- Write clean, reusable, and maintainable code.
- Troubleshoot, debug, and optimize application performance.
- Participate in code reviews and Agile development activities.
- Implement authentication and authorization mechanisms.
Preferred Skills
- Redux or Context API
- MongoDB, MySQL, or PostgreSQL
- Git version control
- JWT / OAuth authentication
- Basic knowledge of AWS, Azure, or GCP
Candidate Requirements
- Minimum 4 years of relevant development experience.
- Strong hands-on experience in both React.js and Node.js.
- Good understanding of full-stack application development.
- Immediate joiners only, due to urgent project requirements.
- Must be comfortable working from the HP Bellandur office in Bangalore.
About SkillSecureX
SkillSecureX is an emerging technology-focused platform dedicated to providing practical learning experiences and industry-oriented opportunities in Web Development, Artificial Intelligence, Machine Learning, Data Science, and modern software technologies. We work on innovative projects and help students and freshers gain real-world exposure through hands-on training and project-based internships.
About the Internship
We are looking for passionate and motivated candidates for the role of Full Stack Web Developer with AI Intern. This internship is ideal for students, freshers, and aspiring developers who want to gain practical experience in full stack development and AI-powered web applications.
Interns will work on real-world projects, modern development technologies, frontend and backend systems, databases, APIs, and AI integrations under mentorship and guidance.
Roles & Responsibilities
• Develop responsive and user-friendly web applications
• Work on frontend and backend development tasks
• Build and integrate REST APIs
• Assist in AI-powered web application development
• Debug, test, and optimize applications
• Collaborate with mentors and project teams
• Participate in project discussions and development activities
Required Skills
• Basic understanding of HTML, CSS, and JavaScript
• Interest in React.js, Node.js, or Full Stack Development
• Knowledge of databases like MongoDB or MySQL is a plus
• Familiarity with Git/GitHub is beneficial
• Strong willingness to learn and work on practical projects
Eligibility
• Students pursuing graduation or post-graduation
• Freshers interested in Full Stack Development and AI
• Candidates looking to gain practical industry experience
Perks & Benefits
• Internship Completion Certificate
• Hands-on experience on live projects
• Flexible remote working environment
• Mentorship and practical learning exposure
• Opportunity to improve technical and professional skills
About the Job -
We have always been in the spotlight for being adeptin “the next big technologies”. What we can offer you is a space to explore varied technologies and quench your techie soul. We are looking for Developer skilled in technologieslike Node.js and AWS who also holds experience with user-interface design.
Responsibilities: ● The full stack developer will be responsible for design and development of scalable and flexible web applications and creating API to connect to databases and applications from back-end to client-side code, using optimal and efficient technologies, frameworks, and patterns.
● Take responsibility for design, implementation and maintain existing development ecosystem, including bugs – fixing, design and develop new custom components to meet project requirements.
● Working with other developers and software engineers to develop front-end and back-end architecture that's well-structured and flexible, along with the APIs to support it.
● Install and configure server environments for React deployments maintain and update project dependencies as well as fix any conflicts.
● Responsible for regular communication with developer team involved in the development process and testing of new features in the application
● Analyzing requirements and designing new functionality for new projects with cutting edge technology with research on optimization and new features for the existing product by ensuring a required level of performance.
● Candidate must be abreast with latest technologies and trends, relevant standards should be able to work effectively in a multidisciplinary, multinational team environment focused on innovation with comfortable working on a range of problems.
Desired Competencies(Technical/Behavioral Competency) – Must Have-
● Nodejs, MongoDB, Socket.IO and Redis.
● Proficient in Node.js and MongoDB and working knowledge of JavaScript, JQuery, HTML, CSS, frameworks (Angular.js, React.js)
● Experience with Unix/Linux or Windows and/or Mac environments, distributed systems
● Excellent practical knowledge of OOP concepts and SOLID principles ● Microservices and agile development
● Hands-on experience with cloud (AWS) development/hosting.
● Experience with Web services development (SOAP, REST)
● Strong in Object Oriented Programming, MVC, Design patterns and SOLID principles.
Skills Required:
- Node.js
- MongoDB
- Angular
- API optimization
- Micro Services
- Multi threading
- Socket.io
AI Agent Frameworks, LangChain, LlamaIndex, OpenAI API,Zapier, HTML5, CSS3, JavaScript,bootstrap3.1,TypeScript, React.js, Next.js, Vue.js, Node.js, Python, PHP, WordPress, Headless CMS, DNS Management, SSL Configuration, Conversion Rate Optimization (CRO), A/B Testing, AWS, Google Cloud Platform (GCP), Cloudflare CDN, AWS S3, Core Web Vitals, Google Trends, Google Search Console, Ahrefs, SEMrush, Google Analytics 4 (GA4), Google Tag Manager (GTM), Meta WhatsApp Cloud API, Twilio, Webhooks, MSG91, REST APIs,claude,github,MYSQL
We are looking for a motivated Junior Full Stack Developer with around 6 months of hands-on experience in Java, React.js, Node.js, and basic AI/ML concepts. The candidate will work with our development team to build, enhance, and maintain scalable web applications and contribute to AI/ML-enabled features.
Key Responsibilities
- Develop and maintain web applications using Java, React.js, and Node.js.
- Build responsive and user-friendly interfaces using React.js, HTML, CSS, and JavaScript.
- Develop RESTful APIs and backend services using Java/Spring Boot and Node.js.
- Integrate frontend applications with backend APIs and databases.
- Work with databases such as MySQL, PostgreSQL, or MongoDB.
- Understand and implement basic AI/ML concepts in application development.
- Work with AI/ML APIs, LLMs, or Python-based ML services where required.
- Assist in developing AI-powered features such as chatbots, recommendations, text processing, or automation.
- Write clean, reusable, and maintainable code.
- Perform debugging, testing, and issue resolution.
- Collaborate with developers, QA engineers, and other team members.
- Participate in code reviews and follow software development best practices.
- Learn and adapt to new technologies and frameworks as required.
We are looking for a motivated and enthusiastic Full Stack Intern to join our development team. The ideal candidate should have a strong interest in frontend development, backend systems, and AI/ML technologies, along with a willingness to learn and contribute to real-world projects.
Role: Full Stack Intern
Technologies:
- Frontend: React.js, Next.js
- AI/ML: Basic understanding of Machine Learning concepts and AI integrations
Responsibilities:
- Develop and maintain responsive web applications using React.js and Next.js
- Build and integrate backend APIs and services
- Work with databases and server-side logic
- Assist in AI/ML feature integrations and model implementations
- Collaborate with designers, developers, and team leads
- Debug, test, and optimize application performance
- Participate in code reviews and daily team discussions
Requirements:
- Basic knowledge of React.js and Next.js
- Understanding of JavaScript, HTML, and CSS
- Familiarity with backend development using python or similar technologies
- Basic understanding of REST APIs and databases
- Interest in AI/ML technologies and tools
- Good problem-solving and communication skills
- Ability to learn quickly and work in a team environment
Preferred Skills:
- Knowledge of Git/GitHub
- Experience with MongoDB or SQL databases
- Familiarity with Python for AI/ML projects
- Understanding of deployment and hosting platforms
Internship Details:
- Duration: 6 Months
- Internship Type: Remote
- Stipend: 10000-15000 Based on Performance
If you are passionate about building modern applications and exploring AI-powered solutions, we’d love to hear from you.
About Us
Corporate Web Solutions delivers web development and digital transformation solutions with a focus on scalable technologies and practical innovation. Our internship environment provides students with opportunities to work on real-world development projects.
Role Overview
As a MERN Stack Developer Intern, you'll gain hands-on experience developing web applications using MongoDB, Express.js, React, and Node.js, along with AI-assisted development tools.
Key Responsibilities
- Assist in developing MERN stack applications.
- Build responsive React interfaces.
- Develop and integrate REST APIs.
- Work with MongoDB and backend services.
- Debug and test application features.
- Explore AI tools for software development.
Requirements
- Basic JavaScript knowledge.
- Familiarity with React or Node.js.
- Basic understanding of databases.
- Knowledge of MongoDB is a plus.
- Strong willingness to learn.
Perks
- Certificate of Internship
- Flexible work hours
- Mentorship and real project exposure
- Potential for PPO
- Letter of Recommendation
- Performance-Based Stipend available up to ₹18,000/month
About Byldd:
Byldd is a Startup Studio that helps founders launch and scale software companies. We work closely with founders to refine ideas, identify core pain points, build scalable software products, acquire initial customers, and support growth.
At Byldd, engineers get the opportunity to work on diverse and challenging projects across industries like fintech, healthcare, AI, operations, and enterprise software. Since we work with multiple startups at different stages, the problems are rarely repetitive — one week you may be building an AI-assisted workflow tool, and the next you may be architecting a scalable SaaS platform.
Our engineering culture is strongly focused on ownership, fast execution, and leveraging modern development workflows — including AI-assisted development using tools like Claude Code, Cursor, ChatGPT, GitHub Copilot, and other AI tooling to improve speed, quality, and problem-solving.
We primarily work with technologies such as React/Next.js, Node.js, TypeScript, MongoDB, and modern cloud infrastructure.
About the role:
We’re looking for experienced Full-Stack Engineers with a strong backend inclination to join us on core business projects.
Your role will involve understanding business requirements, product flows, and mockups. We’ll provide the “what” and the “why” behind the product decisions, and you’ll take ownership of translating them into scalable technical solutions.
While this is a full-stack role, the expectation is backend-heavy ownership — including system design, APIs, database architecture, integrations, scalability, and performance optimization. You’ll collaborate with founders and senior engineers to architect and build products end-to-end.
Since we move fast, we highly value engineers who can independently figure things out, use AI effectively in their workflows, and ship high-quality products with speed.
This role is ideal for someone who enjoys combining strong backend engineering fundamentals with modern AI-assisted development practices.
What You’ll Do
- Build and ship scalable full-stack applications from scratch
- Design and develop robust backend systems, APIs, and database architectures
- Work closely with founders, designers, and product teams
- Architect systems with scalability, maintainability, and performance in mind
- Use AI-assisted development tools (Claude Code, Cursor, ChatGPT, Copilot, etc.) to improve development speed and productivity
- Review, debug, and optimize production systems
- Think through edge cases, reliability, and long-term scalability
Who you are:
- You have 2+ years of non-internship experience as a full-stack developer with strong backend expertise
- You enjoy building products from 0 → 1
- You think beyond tasks and understand business objectives
- You are comfortable taking ownership and contribute towards making technical decisions
- You actively use or are excited to use AI tools in your engineering workflow
- You are strong in problem-solving and figuring things out independently
- You care deeply about writing clean, maintainable, scalable code
- You enjoy working in fast-paced startup environments
- You’re comfortable contributing across the stack while being particularly strong on the backend side
Preferred Tech Stack
(Experience in some or most of the following is preferred)
- Node.js
- TypeScript
- MongoDB
- Express.js
- React / Next.js
- REST APIs
- Cloud deployment & modern dev tooling
Experience with AI-assisted coding tools and workflows is a strong plus.
Location: Remote
Role Overview
We are looking for a MERN / MEAN Full Stack Developer to develop and maintain modern web applications.
The candidate should be comfortable working on both frontend and backend components and collaborating closely with cross-functional teams.
Key Responsibilities
Design, develop, and maintain full-stack web applications using MERN or MEAN stack
Build responsive and user-friendly frontend interfaces
Develop secure, scalable backend APIs and services
Work with databases to design efficient schemas and queries
Integrate third-party services and internal systems
Write clean, reusable, and well-tested code
Participate in code reviews and team discussions
Debug and resolve application issues across the stack
Required Skills & Experience
2+ years of hands-on experience in MERN or MEAN stack development
Strong experience with JavaScript / TypeScript
Proficiency in React.js or Angular
Experience with Node.js and Express.js
Hands-on experience with MongoDB (and/or other databases)
Strong understanding of REST APIs
Experience using Git for version control Good to Have (Preferred Skills)
Exposure to Next.js or modern frontend frameworks
Knowledge of authentication, authorization, and security best practices
Experience with cloud platforms (Azure / AWS)
Familiarity with CI/CD pipelines
Exposure in Rust Framework and development using Tauri.app.













