Fullstack 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).

1. Responsibilities 

   • • Collaborate with the core team building a state-of-the-art blockchain based SaaS. 
   • • Building front-end web applications using latest technologies. 
   • • Suggest and ideate high- and low-level design and architecture requirements for implementation of features. 
   • • Apply comprehensive knowledge and a thorough understanding of concepts, principles, and technical capabilities to perform varied tasks and projects. 
   • • Backend RESTful API Design and server-side development for web and mobile apps. 
   • • Develop and design database schemas on MongoDB. 
   • • Perform code reviews and unit tests to ensure code consistency and maintainability. 
   • • Setup alerts, monitoring & metrics, provision and manage resources on AWS Cloud. 

    

   Minimum Qualifications 

   • • Passion to solve complex problems of agriculture in a dynamic start-up environment 
   • • Flexible, curious, exploratory, and can-do attitude 
   • • Great sense of ownership and ability to work with very limited supervision 
   • • Bachelor's degree in Computer Science, related technical field, or equivalent practical experience. 
   • • 2-5 years of hands-on coding expertise in software engineering. 
   • • Experience with JavaScript, HTML, CSS. 
   • • Ability to speak English fluently. 

    

   Preferred Qualifications 

   • • Strong programming experience of 2+ years with Node.js, Express.js, MongoDB and Angular stack. 
   • • Strong problem solving/troubleshooting skills. 
   • • Experience with software design and architecture for building highly efficient and scalable systems. 
   • • Experience with MongoDB Atlas for database hosting and storage. 
   • • Experience with SDLC in an Agile work environment using tools like Jira and GitHub. 
   • • Experience with AWS Services like ECS, EKS, EC2, S3, Lambda, Load Balancing, Route 53, API Gateway along with Infrastructure provisioning and optimization. 
   • • Knowledge and experience of NoSQL Databases is a must. 
   • • Experience with DevOps, CI/CD pipelines on Jenkins, GitHub Actions, etc. 
   • • Experience with containerization environments like Docker & Kubernetes. 
   • • Experience with Material Design is an advantage. 
   • • Experience with TDD is an advantage. 
   • • Experience or familiarity of blockchain protocols like Hyperledger Fabric a big advantage. 

FullStack Developer

We are currently building the Technology platform for the Global Air Cargo industry ($300B market). 

Currently, we have two open roles (1 Front End Engineer & 1 Back End Engineer).

Full Stack Engineers are also desired for the open positions. 

These (2) engineers will be part of the Tech team which will be at the core of what we aspire to build.

Looking for Full Stack / Front End / Back End Developer

- Tech Stack (React, node.js, typescript, postgreSQL, AWS)

- loves to code, get hands-on and likes to build products from scratch

- At least 2+ years of experience building software products

- "Build local, Launch global" mindset

- Good with people and teams +

- prior startup experience +

- SaaS platform expertise +

- Work location - Chennai

- So we are looking only for candidates in Chennai or who are open to relocating to Chennai for this opportunity

- Open to explore both Contract & Full time options for the (2) roles

JOB DESCRIPTION

Overview - We always put our users first. We start by looking at things from the user’s perspective and end by evaluating how the solution has impacted the user.  We are looking for People who are continuously adapting to new technologies and excited to work on products that influence millions of people every day. The Android and iOS mobile applications are used by millions of people around the world and are some of India’s best known and most loved applications and we’re looking for someone to lead the engineering teams that build these apps.

Role - We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. Full Stack Developer will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail. You will strike a balance between the consumers’ intent and the business’s needs.

What you will do in this role

• Developing front end website architecture.
• Translate requirements and mock-ups into fully functional features by working closely with business and product owners, creative designers and back-end developers.
• Creating servers and databases for functionality.
• Review requirements, design specifications, propose solutions and implementation.
• Work with team leads on the requirements and create estimates against those requirements.
• Deliver projects on time in an agile and continuous development environment.
• Writing tests in a client-side test framework such as Jest, Jasmine, etc.
• Designing and developing APIs.
• Monitor systems to ensure they meet both user needs and business goal.

What you should have

• 2-5 years of hands-on experience in software development and system administration.
•  Experience in Micro services, Serverless applications, Container-based applications.
•  Strong Experience on AWS cloud (Lambda, S3, Kinesis, SQS, SNS, ECS, Dynamo DB).
•  Good understanding of Devops, Apache Kafka.
•  Familiarity with JavaScript frameworks such as ReactJS.
•  Proficiency with server side languages such as NodeJS, Python and PHP.
•  Familiarity with database technology such as MySQL, Mongo DB and Dynamo DB.
•  Familiarity with Logging & Monitoring tools like Kibana, NewRelic, DataDog
• Proficiency with fundamental front end languages such as HTML, CSS and JavaScript.
• Experience with unit testing & Test Driven Development (TDD) and CI/CD.

• BE (Comp/IT), ME (Comp/IT), MCA, M.Tech, B.Tech.

Synapsica is a growth stage HealthTech startup founded by alumni from IIT Kharagpur, AIIMS New Delhi, and IIM Ahmedabad. We believe healthcare needs to be transparent and objective, while being affordable. Every patient has the right to know exactly what is happening in their bodies and they don’t have to rely on cryptic 2 liners given to them as diagnosis.

Towards this aim, we are building an artificial intelligence enabled cloud based platform to analyze medical images and create 2.0 of advanced radiologist reporting.

We are backed by Y Combinator and other investors from India, US and Japan. We are proud to have GE, AIIMS, the Spinal Kinetics as our partners.

Join us, if you find this as exciting as we do!

Description:

We are looking for a skilled computer programmer who is comfortable with both front and back end programming. Hands-on with UI and server-side is highly desirable.

You will get hands-on experience in the latest technologies and skills like ReactJS, NodeJS, MongoDB, REST API etc. This role is ideal for you if you have a background in Full Stack development and are looking for the next level of career growth in a fast paced, learning based and merit driven work environment.

Responsibilities:
- Developing front end app components.
- Developing backend apis and middlewares.
- Designing and scaling databases and servers.
- Ensuring responsiveness and cross-platform compatibility of applications.
- Owning and delivering end-to-end products, features, enhancements.

Requirements:
- Degree in Computer Science or related discipline with 3-7 years of experience.
- Proficiency with fundamental front end languages such as HTML, CSS and JavaScript
- Hands on with Reactjs or similar framework/library.
- Proficiency with server side languages such as Nodejs, Python, PHP.
- Prior experience with at least one no-sql database such as MongoDB.
- Excellent verbal communication skills.
- Good problem solving skills.
- Attention to detail.
- Very high sense of ownership.
- Deep interest and passion for technology

Full Stack Engineer

Front End Technology:

• Minimum 2+ years’ experience in working web development technologies

• Experience writing modular/reusable code and using modern JS frameworks / libraries like

React or other comparable frameworks or toolkits

• Strong expertise with HTML5, CSS, and writing cross-browser compatible code.

. Experience with Responsive Frameworks like Bootstrap / Flex.

• Strong knowledge of Object-Oriented Design concepts.

Back end Technology:

• Have extensive experience in designing a backend stack of the product

• Strong understanding of Data Structures / Algorithms.

• Minimum of 2+ years of experience in Writing Backend Microservices in Node

JS/Python

• Ability to build the product from scratch & drive it to completion

Responsibilities and Duties:

• Design and build a next-generation product that drives the business and meets the functional

needs of our customers and partners.

• Designing overall architecture of the web/ mobile application

• Maintain quality and ensure responsiveness of applications

• Optimize web applications to maximize speed and scale. Support diverse clients from high

powered desktop computers to small footprint mobile devices.

• Write client-side/backend code for web-based applications, create fast, easy-to-use, high

volume production applications, and develop prototypes quickly.

• Build reusable code and libraries for future use

• Develop application code and unit test (Karma, Mocha, Chai).

• Ensuring high performance and security of web apps developed.

Employment Type

Full-time

Job Functions:

• Engineering

• Information Technology

Skills

• Object-Oriented Programming (OOP)

• JavaScript

• Data Structures

• Front-end Development

• Algorithms

• React js
• Express js

• Swagger

• Github

Qualifications

• Experience in building scalable systems.

• Exposure in building and using reusable code and libraries.

• Candidates should proactively keep their knowledge and skills up to date.

• Candidates should be able to work in a fast-paced environment independently and as part of a team.

• Candidates should be able to work in a highly collaborative environment with excellent communication skills.

Other Skills:

• Excellent written and verbal communication skills.

• Ability to work in a dynamic, fast-moving, and growing environment.

• Critical thinker and problem-solving skills. Should be able to strategize immediately.

• Strong knowledge of web application architectures, trends, and emerging technologies.

•  You will ne Responsible for revamping of existing LMS Platform along with designing and developing new projects.
• Researching, designing, implementing and managing software programs
• Testing and evaluating new programs
• Identifying areas for modification in existing programs and subsequently developing these modifications
• Writing and implementing efficient code
• Determining operational practicality
• Developing quality assurance procedures
• Deploying software tools, processes and metrics
• Maintaining and upgrading existing systems
• Training users for new modules
• Hands on experience in LMS or CRM will be preferred
  • Good knowledge on MySQL, ES6, Node.js, SaaS, AWS, Bootstrap and Css3
•  

Job Description

• ​Be able to drive a team of around 4 developers
• Should be able to effectively lead from the front, integrating developers, analysts and QA
• Should be able to pair, and effectively mentor junior developers
• The ability to think innovatively and turn ambiguous problem spaces into clear solutions
• Be an inspiration for the team and a trusted partner to our customers

Requirements

• Familiar with PHP or Ruby or NodeJS. Strong experience in Laravel and/or ReactJS a plus
• Familiarity with the entire development -> prod flow a strong plus (our dev owns the DevOps)
• Familiarity with performance tuning a web stack a strong plus
• Comfortable working in an Agile highly dynamic start-up environment
• Demonstrate leadership skill and be accustomed to driving results in a collaborative, cross-functional environment