Fullstack Developer(MERN+ Springboot)

16 hours ago

Noida, Uttar Pradesh, India ULTRASHIELD TECHNOLOGY Full time ₹ 8,00,000 - ₹ 24,00,000 per year

𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 (𝗠𝗘𝗥𝗡 + 𝗦𝗽𝗿𝗶𝗻𝗴 𝗕𝗼𝗼𝘁)

Location: Sector 62, Noida (On-site Only)

Type: Full-Time

Experience: 3–5 Years

Company: Ultrashield Technology

We collaborate with global clients across industries such as FinTech, Healthcare, Logistics, OTT, and AI-driven platforms. We're seeking a highly skilled Full-Stack Developer with deep expertise in the MERN stack, hands-on experience in Spring Boot and , and practical knowledge of real-time communication technologies like Agora or Twilio.

𝗞𝗲𝘆 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:


• Develop and maintain scalable, end-to-end applications using the MERN stack and


• Design and implement robust backend services and APIs using Spring Boot (Java).


• Build real-time features like chat, voice, and video calls using Agora, Twilio, or WebRTC.


• Manage both frontend ) and backend Boot) integrations efficiently.


• Work with MongoDB/PostgreSQL for data modeling, optimization, and transactions.


• Implement authentication, authorization, and security using JWT/OAuth2 and Spring Security.


• Integrate third-party APIs, payment gateways, notifications, and cloud media storage (AWS S3, Firebase).


• Optimize performance for web and backend systems (caching, lazy loading, indexing).


• Follow Agile methodologies, participate in sprint planning, and perform code reviews.


• Write clean, reusable, and testable code (unit/integration tests) and maintain proper documentation.

𝗥𝗲𝗾𝘂𝗶𝗿𝗲𝗱 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗤𝘂𝗮𝗹𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀:


• 3–5 years of proven experience in MERN Stack (MongoDB, , , ) development.


• Hands-on expertise in Spring Boot (Java) for backend microservices and APIs.


• Strong proficiency in (SSR, SSG, routing, API routes, caching, and performance optimization).


• Experience implementing real-time communication using Agora, Twilio, or WebRTC.


• Strong understanding of JavaScript, TypeScript, and ES6+.


• Knowledge of Redux/Context API for state management and component architecture.


• Familiarity with AWS/Firebase, RESTful APIs, and modern DevOps practices (CI/CD).


• Proficiency in Git and collaborative workflows.


• Strong debugging, analytical, and problem-solving skills.

{𝗡𝗶𝗰𝗲 𝘁𝗼 𝗛𝗮𝘃𝗲}


• Experience in React Native for cross-platform mobile applications.


• Familiarity with GraphQL, , Redis, or Docker.


• Experience deploying and managing apps on AWS (EC2, S3, CloudFront, RDS) or Firebase.


• Exposure to microservices architecture and performance monitoring tools (Sentry, Datadog, CloudWatch).

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