MERN Stack Developer

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).

Full Stack Developer Intern

Company: BizDateUp Pvt Ltd

Location: Charni Road, Mumbai

Employment Type: Internship

(Immediate Joining Preferred)

Experience Level: Entry / Mid-Level(0 – 1 year experience)

Stipend: As per company standards

About

BizDateUp Pvt Ltd BizDateUp Pvt Ltd is a dynamic and fast-paced technology startup committed to building innovative solutions. We believe in fostering a collaborative environment where our team members can learn, grow, and make a tangible impact on real-world projects. Join us to kickstart your career in a supportive and challenging setting. About the Role We are looking for a highly motivated and enthusiastic Full Stack Developer Intern to join our growing tech team. This is an exceptional opportunity for aspiring developers to gain hands-on experience with modern web technologies, contribute to live projects, and receive mentorship from experienced professionals. If you're passionate about building scalable full-stack applications and eager to learn in a startup environment, we encourage you to apply. Key Responsibilities As a Full Stack Developer Intern, you'll be an integral part of our development team, contributing to the full software development lifecycle.

Your responsibilities will include:

• Code Review and Analysis: o Review and analyze existing codebase to understand functionality, identify areas for optimization, and ensure adherence to best practices. o Participate in code reviews with senior developers, providing constructive feedback and learning from their insights.

• Front-End Development: o Assist in building responsive and intuitive user interfaces using React.js. o Implement new features and functionalities based on design specifications and user stories. o Debug and resolve issues related to the front-end application.

• Back-End Development: o Support the development of robust and scalable server-side applications using Node.js and Express.js. o Contribute to the design and implementation of RESTful APIs to facilitate communication between front-end and back-end systems. o Work with PostgreSQL to manage and query databases, ensuring data integrity and efficient retrieval.

• Collaboration and Learning: o Collaborate closely with senior developers, product managers, and other team members to understand project requirements and deliver high-quality solutions. o Actively participate in team meetings, stand-ups, and brainstorming sessions. o Proactively seek feedback and mentorship from experienced developers to enhance your technical skills and understanding.

• Testing and Debugging: o Assist in writing unit and integration tests to ensure the reliability and stability of applications. o Identify, analyze, and resolve bugs and performance issues across both front-end and back-end systems.

• Version Control: o Utilize Git for version control, including branching, merging, and pull requests, to manage codebase effectively within a team environment.

• Documentation: o Contribute to the creation and maintenance of technical documentation for features, APIs, and system architecture. Required Skills To succeed in this role, you should have a foundational understanding and practical experience with the following technologies: • Programming Languages: Strong command of TypeScript and JavaScript. • Frontend Framework: Proficiency in React.js.

• Backend Technologies: Experience with Node.js and Express.js.

• Database: Familiarity with PostgreSQL.

• Version Control: Working knowledge of Git.

• APIs: Understanding of RESTful APIs.

Eligibility Criteria

• Currently pursuing or have completed a BCA / B.Tech / B.Sc in Computer Science or a closely related field.

• Possess strong problem-solving skills and a genuine eagerness to learn and adapt to new technologies.

• Demonstrate a strong passion for building full-stack applications and a desire to contribute to innovative projects.

Perks & Benefits

We are committed to providing a rewarding internship experience. As a Full Stack Developer Intern at BizDateUp Pvt Ltd, you will enjoy:

• Hands-on Experience: Work directly with modern web technologies and contribute to real-time projects.

• Mentorship: Receive guidance and support from experienced senior developers who are invested in your growth.

• Learning Opportunity: Gain invaluable insights into the full software development lifecycle in a fast-paced startup.

• Internship Certificate: A certificate of internship will be provided upon successful completion of your tenure.

• Potential for Full-Time Conversion: Exceptional performance during your internship may lead to an offer for a full-time position.

Developer – Full stack

·        Full stack development experience for 1-2 years

·        Implement new application features and improvements to existing features based on defined project requirements.

·        Experience with React or Angular framework

·        Familiarity of HTML5, CSS3, and JavaScript skills.

·        Experience developing server side applications in at least Java 8.

·        Experience with Spring Boot and REST APIs.

·        Collaborate with cross-functional teams to design, develop and deploy new features and applications

·        Ability to write and optimize SQL queries and database performance tuning

·        Familiar using source control systems, preferably Git.

·        Troubleshoot and resolve application bugs

·        Passionate about developing high quality code that has been thoroughly tested.

·        Strong written and verbal communications skills.

·        Stay up-to-date with emerging trends and technologies in web development

·        Implement automated testing and continuous integration and deployment processes

·        Ability to learn quickly.

Good to have skills

·        Python, Flask, Fast API knowledge

·        Cloud knowledge – preferably AWS

·        Understanding of graph database

·        Familiarity with containerization technologies such as Docker and Kubernetes

Location: Noida Sector 142

Experience: 3+ years

Employment Type: Full-Time

Key Responsibilities

• Development: Design, develop, and maintain scalable, high-performance web applications using Node.js and React.js.
• Database Management: Work extensively with PostgreSQL and Prisma ORM to design, optimize, and maintain databases.
• API Integration: Build and integrate RESTful APIs and third-party services to enhance platform functionality.
• E-commerce Projects: Develop and enhance e-commerce solutions, ensuring seamless user experiences and efficient backend operations.
• SaaS Development: Contribute to the development of SaaS-based features and services, ensuring multi-tenant support and scalability.
• Microservices Architecture: Design, build, and deploy microservices to support modular and scalable applications.
• Code Quality: Write clean, maintainable, and well-documented code while adhering to best practices and coding standards.
• Collaboration: Work closely with product managers, designers, and other developers to deliver high-quality solutions within deadlines.
• Troubleshooting: Identify and resolve performance bottlenecks, bugs, and other technical issues.

Required Skills and Qualifications

• Technical Proficiency:Strong expertise in Node.js and React.js.
• Proficient with PostgreSQL and experience using Prisma ORM.
• Hands-on experience with API development and integration.
• Knowledge of e-commerce platforms and their technical requirements.
• Experience in SaaS product development and multi-tenant architecture.
• Familiarity with building and maintaining microservices architectures.
• Version Control: Strong understanding of Git and version control practices.
• Testing: Experience with unit testing, integration testing, and debugging tools.
• DevOps Knowledge (Preferred): Familiarity with CI/CD pipelines, containerization (Docker), and cloud platforms (AWS, GCP, or Azure).
• Soft Skills: Strong problem-solving abilities, attention to detail, and excellent communication skills.

Preferred Qualifications

• Experience with e-commerce frameworks or libraries.
• Familiarity with GraphQL and WebSocket implementations.
• Knowledge of performance optimization techniques for web applications.

What We Offer

• Salary + ESOPs
• Opportunity to work on cutting-edge technology in a fast-paced environment.
• Collaborative and inclusive work culture.
• Professional development and learning opportunities.

Apply Now: If you are a passionate developer looking to contribute to impactful projects.

Primary job role

Develops software/ information systems, by creating & designing sets of new functionalities and installing software solutions and play a leadership role thorough understanding of design methodologies and overall software development lifecycle. 

Main duties/responsibilities

• Involve in all stages of the software development process including requirement gathering, design, development, testing, deployment management, issue review and perform maintenance.
• Good analytical and problem-solving skills.
• Learn and maintain up to date knowledge of latest technologies, tools and platforms.
• Responsible for maintaining a high level of expertise in all areas of technology used (or potentially used) by the team.
• Produce high quality and designs by following industry best practices and coding standards.
• Communicate with clients as and when required.
• Responsible for clear communication (both written and verbal) with technical and non-technical contacts (internal and external) and all seniority levels.
• Ability to work both independently and as a part of a team.
• Work with non-technical business teams to understand the functionality, composition, and user requirements.
• Ability to achieve tasks with minimum supervision.
• Participate in estimations.
• Participate in design discussions.
• Provides technical support to customers and employees.
• Provides training and guidance to the new developers.
• Ability to play a leadership role within the team

Experience

• 4-5 years of experience in the relevant field with 1-2 year in SSE role.

Technical Knowledge

• Angular, React/Redux (or Similar Technology)
• Node.js
• RESTfull API integration
• Experience working with Docker and containerized applications
• Experience working with Kubernetes or other container orchestration tools
• Knowledge and understanding of working in AWS environments
• Experience in full stack development (with passion)
• RDBMS and Document Database
• Experience with Agile/Scrum Development Methodology
• Exposure to Continues Integration (CI/ CD)
• Version control systems like Git/ TFS

Qualifications

• Bachelor’s Degree in Computer Science / IT or an equivalent qualification.

Behavioral competencies

• Communication
• Teamwork & collaboration
• Client orientation

Expecting leads to know Angular9, React (Functional, Hooks), Nodejs(NestJS), Test Driven Development (Unit Test)/JEST, Microservice / Container ( Docker )

• 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.
• Follow emerging technologies
• Test and develop software for client applications
• Proficiency in JavaScript
• Strong knowledge of JavaScript technologies such as Node.JS, React.JS, Express.JS, etc.
• Experience in a wide variety of databases such as MySQL, MongoDB, etc.
• Understand Architectural Requirements and ensure effective design and development.
• Enable absorption of latest technologies in the product line.
• Good analytical & Communication skills.

• - Work with UX and Product Management teams to design software
• - Work with Architects and Engineering leads to build scalable software
• - Back-end software development
• - Proficient in low level system arch design
• - Strong knowledge of web development - MVC, React / Angular Framework
• - Take Product Ownership
• - Testing and fixing bugs
• - Create security and data protection settings
• - Build features with a mobile responsive design
• - Experience with Agile/Scrum methodology, Behavior Driven Development, and CI/CD
• - Ability to think critically and creatively in a dynamic environment, while picking up new tools and domain knowledge along the way

• - 3+ years of industry experience as a Backend/Full Stack Engineer
• - Degree in Computer Science or related field
• - Experience with developing web and mobile applications
• - Must have 2-5 years of experience building applications using front end technologies like – React, Angular 2+, JavaScript/Typescript, HTML5, CSS3 and Bootstrap 
• - Must have 2-5 years of full time Python (Django) experience, and hands-on experience through all stages of Agile software development life cycle. 
• - Ability to write optimized codes, debug programs, and integrate applications with third party tools by developing various APIs.
• - Proficiency with Python or relevant back-end scripting language
• - Proficiency with SQL/NoSQL databases, web servers (e.g. Nginx)
• - Experience with Cloud infrastructure (e.g. AWS), relevant microservices and load scaling
• - Maintains a strong knowledge base of new open source tech stacks, applications, techniques, and skills

• - A positive attitude, and a growth mindset
• - Great attention to details

• - Experience with serverless deployment  (e.g. Lambda)
• - Experience with API testing software (e.g. Postman)
• - Experience with multiple front-end languages and libraries (e.g. HTML/CSS, JS)
• - Good Humor