Job Description :

We are looking for a skilled MERN Stack Developer with experience in building offline-first and disconnected applications. The ideal candidate should be capable of developing scalable web applications that continue to function in low-connectivity or no-network environments while ensuring reliable data synchronization, caching, and conflict resolution.

Key Responsibilities :

- Develop and maintain web applications using MongoDB, Express.js, React.js, and Node.js.

- Build responsive and interactive user interfaces using React (Hooks, Context API, Redux).

- Design and implement scalable backend services and APIs.

- Optimize database performance, queries, and application responsiveness.

- Collaborate with cross-functional teams to deliver high-quality software solutions.

Offline-First Architecture :

1. Design and develop applications that function effectively with intermittent or no internet connectivity.

2. Implement client-side storage solutions such as IndexedDB, LocalStorage, PouchDB, or SQLite.

3. Develop data synchronization mechanisms between client and server.

4. Handle conflict resolution and maintain data consistency across systems.

5. Implement retry logic, offline queues, and eventual consistency models.

API & Backend Development :

1. Design and build RESTful APIs and GraphQL services.

2.



Develop synchronization services and background processing workflows.

3. Ensure API versioning and backward compatibility.

Performance & Optimization :

1. Optimize applications for slow or unreliable network conditions.

2. Improve React performance and reduce bundle size.

3. Implement caching strategies using service workers, CDN technologies, and Redis where applicable.

Required Skills :

- 4+ years of experience in MERN Stack development.

- Strong proficiency in JavaScript (ES6+) and modern React development.

- Hands-on experience with :

i. React.js (Hooks, Context API, Redux)

ii. Node.js & Express.js

iii. MongoDB

- Experience building offline-first or disconnected applications.

- Knowledge of client-side storage technologies (IndexedDB, LocalStorage, PouchDB, SQLite).

- Experience with data synchronization, conflict resolution, and caching strategies.

- Strong understanding of REST APIs and/or GraphQL.

- Excellent debugging, problem-solving, and communication skills.

Valuable to Have :

- Experience with PouchDB and CouchDB synchronization.

- Knowledge of React Native or Ionic.

- Exposure to event-driven architectures.

- Experience with TypeScript.

- Familiarity with Azure or AWS cloud platforms.

📌 MERN Stack Developer (Mumbai)
🏢 Victrix Systems & Labs
📍 Mumbai