Senior Product Developer

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).

• Ability to translate Wireframes and PSD Designs into functional web apps using HTML5, AngularJS, React , Node.js, and Mongo

• Binding of UI elements to JavaScript object models

• Creating RESTful services with Node.js

• Architect scalable web architectures

• Work in a cross-functional team to deliver a complete user experience

• Create Unit and Integration tests to ensure the quality of code

• Be responsive to change requests and feature requests

• Write code that is cross-platform and cross-device compatible

• Ability to wear many hats and learn new technologies quickly

Senior Full Stack Engineer - TalkingYak

Talking Yak is an Android-based English teaching system made specifically for native Hindi and Tamil speakers.

Our program includes over 400 intelligently-structured videos, thousands of exercises, over 10,000 vocabulary words and phrases, and a system that adapts itself to each learner. In a matter of months, we can elevate most learners to a 100% functional English capability.

We are one team at TalkingYak consisting of honest, moral & ethical individuals who are heard and valued! We hold ourselves accountable- delivering on expectations & celebrating each other for the great work we do!

We’re looking for a senior developer who has a lot of passion towards solving real world problems using technology. 

Below are some of the developer qualities we like a lot,

• Good team player
• Ability to write clean readable code
• Good logical and problem solving skills
• Clear communication skills
• Never give up attitude
• Passionate to learn and acquire new skills

Our current technology stack includes Android, Python, Flask, MongoDB, RabbitMQ, ElasticSearch and AWS. While it is a bonus to have worked on the same set of above listed technologies, it is not a must until you have hands-on experience with similar technologies.

To give you an idea about what you will be working on after joining us, you will be

• Dockerizing different services and automating our AWS infrastructure provisioning steps
• Optimising our backend services to scale for a few hundreds of concurrent users
• Managing our backed service and adding new features to it
• Working on refactoring our current android codebase to a cleaner design
• Mentoring junior developers

While we feel a developer with 4 to 8 years of hands-on experience will be more suitable for this role, it shouldn't be a hard constraint if you have the required skills.

We would love to get in touch immediately and have a conversation, if you feel our interests align.

We are looking for a Shopify app developer on an urgent basis. The candidate should have a minimum of 2 years of experience in Shopify custom app development for private and public apps.

Job Description:

• Proficient in Liquid, HTML/CSS, React JS & Node.
• Must have hands-on experience in Databases. (MongoDB)
• Proficient understanding of code versioning tools, such as Git
• Aware of Shopify variables and Shopify API.
• Building reusable code and libraries for future use.
• Should have good communication & management skills for daily sprints.

• You will hold the beacon for development and user experience at a company while helping us scale from 3 million users to 50 million users
• Build performance and effective new features by participating in the overall application lifecycle
• Build modular, reusable, performant, and optimal features both in frontend and backend
• Code, debug, troubleshoot, deliver
• Help maintain and improve existing data structures while planning and implementing new model data structures for scalability
• Continuously improve stability and performance of company’s tech platform
• Be the user’s voice and help make product decisions
• Exhibits knowledge and behavior to adopt Information Security and Privacy practices at their work.

• 1 - 4 years experience as a Full-Stack Developer
• In-depth understanding of the entire web development process (design, development, and deployment)
• Proficiency with Nodejs, MongoDB, AWS.
• Proficiency with front-end languages (e.g. HTML, JavaScript, and CSS)
• Team Building & Leadership
• Want to interact with all levels of the company including senior leaders and cross-functional teams
• Love problem solving and thrive on handling multiple projects and tasks
• Foster strong professional relationships with the full organization
• Sense of ownership and pride in your performance and its impact on the company’s success

Responsibilities

Work with dev teams and manage projects.

Plan with security and data protection as a foreword thought.

Build real-time and near real-time web applications with video/audio streaming.

Provide budgets and cost estimations for projects and server/service costs.

Design and develop client and server-side architectures.

Build front-end apps on React, Vue. You should be an expert at React.

Develop and manage database

Plan and write APIs

Test software to ensure responsive and efficiency

Write technical documentation

Requirement

5+ years experience

Front-end - React, Vue, Angular ( Expert in React and Angular)

Backend - Go-lang, Python, nodeJS, ( Must have working knowledge of atleast any of the two

programming languages)Framework: Django, Express JS

Misc - Linux, AWS, Deployment, Docker( Mandatory)