Fullstack Developer

NodeJS DeveloperResponsibilities:

• Develop high quality Javascript (ES6) code for our Node.js applications.

• Coordinate with the engineering team to accomplish tasks on agile processes.

• Optimize application for maximum speed and compatibility.

• Multitask seamlessly, always maintaining a positive attitude and a client-first mentality.

• Incorporate engineering best practices, methodologies & standards in all deliverables.

• Build customer facing technology products for global customers.

• Work with a performance oriented team driven by ownership and open to experiments.

• Develop a deep understanding of the start-up ecosystem.

Requirement:

• Must have 1+ years of experience in web application development

• Excellent working knowledge of JavaScript including depth understanding of Node.JS,

Express.JS.

• Demonstrated experiences in Node.js end to end development.

• Experience with modern frameworks and design patterns, minimum one-year experience

with MEAN Full stack paradigm.

• Hands-on experience with JavaScript Development on both client and server-side.

• Comprehensive knowledge of best practices and design patterns for SaaS.

• Good Experience working on Web development, Web Services and Micro services

architecture.

• Work experience in Mongodb / Mysql / No sql db / Any transactional DB.

• Familiarity with RESTful APIs.

• Experience with version control tools (Git)

• Deep understanding of data structures, data flow, Ajax and CRUD.

• Excellent spoken and written English.

MERN Stack Developer

Location: Surat, Gujarat (No WFH )

Job Summary:

We are looking for a Full Stack Developer (MERN) with hands-on experience in building highly scalable, performance-driven applications. The ideal candidate should have a deep understanding of both front-end and back-end development, microservices, and database optimization for large-scale systems. You will be responsible for designing, developing, and maintaining applications that can handle high concurrency (1,000+ active users) while ensuring performance, reliability, and scalability.

This role involves working closely with cross-functional teams — including product managers, designers, and DevOps engineers — to deliver cutting-edge, enterprise-grade solutions.

Roles & Responsibilities:

• Design and develop scalable and distributed web applications using the MERN stack (MongoDB, Express.js, React/Next.js, Node.js).
• Build and optimize RESTful APIs for high-performance, concurrent environments.
• Architect and manage MongoDB databases, ensuring high availability, efficient query performance, and scalability.
• Implement queueing systems (e.g., BullMQ, RabbitMQ, Kafka, or Redis Queues) for background jobs and asynchronous processing.
• Optimize server and client performance to support real-time data updates and high concurrent user loads.
• Collaborate with DevOps to improve deployment pipelines, containerization (Docker), and cloud scalability.
• Conduct thorough testing, profiling, and debugging to identify performance bottlenecks and optimize both code and infrastructure.
• Participate in code reviews, architecture discussions, and sprint planning to ensure technical excellence and scalability across all layers.

Qualification / Requirements:

• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
• 1 + years of hands-on experience in full-stack development using the MERN stack.
• Proven experience working on applications supporting 1,000+ concurrent users or large-scale distributed systems.
• Strong expertise in:
• Node.js (asynchronous programming, clustering, performance optimization)
• Next.js & React.js (SSR, CSR, and dynamic rendering)
• MongoDB (aggregation pipelines, indexing, schema design for scalability)
• Practical experience with message queues (BullMQ, RabbitMQ, Kafka, or Redis Streams).
• Familiarity with caching mechanisms (Redis, Memcached) to optimize performance.
• Experience with Docker and microservices-based architectures is a plus.
• Good understanding of API design, authentication mechanisms (JWT, OAuth), and security best practices.
• Experience working in Agile environments and using Git-based version control.

Nice to Have:

• Exposure to serverless computing (AWS Lambda).
• Experience with monitoring tools (New Relic, Datadog, ELK Stack).
• Knowledge of CI/CD pipelines and automated deployment workflows.
• Experience in real-time communication (WebSockets, Socket.io).

Job Description:

• 3 - 4 years of hands-on Python programming & libraries like PyData, Pandas
• Exposure to Mongo DB
• Experience in writing Unit Test cases
• Expertise in writing medium/advanced SQL Database queries
• Strong Verbal/Written communication skills
• Ability to work with onsite counterpart teams

• Database Integration
• Java
• Oops concept
• Spring boot
• No SQL server (Mongo DB)
• SQL Server
• Rest API
• MVC
• Hibernate
• API optimization
• Multi-Processing

• 2+ years of relevant work experience in Java & Spring
• Experience in Mongo DB (optional).
• Experience working in software development
• Proficient in Sprint Boot
• Good understanding of Java language
• Knowledge of NoSQL & SQL databases
• Has experience in functional and technical design
• Experience in working with front end technologies and/or front end

• Experience with user-interface
• Background in computer science, with a focus on data structures, algorithms, and API
• Ability to learn other coding
• Demonstrated ability to share knowledge via formal mentoring, reviewing code, reviewing design documents, providing technical talks, teaching classes, or as a consultant on

Vah Vah! is an ed-tech company that offers online makeup courses in micro-batches to students across India to learn from the leading teachers in top cities. We provide holistic education with lots of practical training that makes our students job-ready with not just the base skills but also the soft skills for great customer service. Our teachers have more than 15+ years of experience in training makeup and have certified more than 1000+ students. Vah Vah! is founded by executives with extensive experience running consumer business and mobile games at scale (over 100 million players) at Zynga. Vah Vah! is backed by a leading investment firm.

Website Link: https://vahvah.com/

The Mission

Vah Vah teaches professional makeup to budding makeup artists and influencers through live online classes. We have students from Srinagar, all the way to the Andamans. And experienced teachers who have worked in Bridal Makeup, Ramp Shoots, Film and more. We empower our students to join the workforce as fully trained makeup artists. This is the future of vocational education, and you can help build it.

Our Culture

• Amazing workplace and colleagues to work with
• We have the right mixture of creativity, analytics and hustle to move fast in the right direction.
• You will work with colleagues who don’t take themselves too seriously but move mountains.
• See yourself evolving every month with new problems to solve and new skill to master.
• Work with the smartest engineers so you can learn from them.
• Competitive salary at par with the best in the industry
• Great stock options so you can benefit from the company's growth.
• Immense exposure to new technologies

Responsibilities:

• Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement.
• Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
• Participating in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members. Taking lead on projects, as needed.

Requirements:

• Overall experience of 2-5 years in building backend services using languages like NodeJs, Java etc
• Fluency or understanding of specific languages, such as Java, Node.Js, Python, and operating systems may be required.
• Strong understanding of the web development cycle and programming techniques and tools.
• Focus on efficiency, user experience, and process improvement.
• Strong problem solving and verbal and written communication skills.
• Ability to work independently or with a group.
• Sound knowledge on source control and DevOps

What you get:

• Amazing workplace and colleagues to work with
• Competitive salary at par with the best in the industry
• Immense exposure to new technologies

• 0-3 application development experience in solution building on Blockchain technology.
• Solid understanding of and experience in blockchain / distributed ledger technologies familiarity with platforms, such as Ethereum and Hyperledger.
• Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus
• Security Architecture / Cryptography is a plus.
• Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus.
• Experience on development tools such as Hyperledger Fabric/Sawtooth,Geth , Composer, Solidity Remix Functional
• Basic understanding of Web applications architecture and protocols.